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IV-19

8 Drum

Cleaning

Transfer Belt Cleaning Process means that the residual toner on the transfer belt is

removed.

(1) Structure of Transfer Unit Cleaner PU (Refer to Fig.4-22)

i) Transfer Unit Cleaner PU is located as shown in Fig.4-8.
ii) Cleaning brush is a semiconductor type fur brush to clean the surface of

transfer belt as rotating. However, the cleaning brush stays away from the

transfer belt while imaging on the transfer belt.

iii) Belt cleaning roller is positively biased by the positive voltage FCBV(V).
iv) FCBV(V) is injected to the cleaning brush as well, and the cleaning brush is

self-biased by the resistance of brush.

v) Cleaning roller rotates as contacting to the belt cleaning brush.

(2) Process of Transfer Belt Cleaning (Refer to Fig.4-22)

i) There is the residual toner on the surface of transfer belt after the paper

transfer process.

ii) Cleaning brush is positively self-biased. Cleaning brush has the negatively

charged residual toner fall off from the surface of transfer belt, and electrically

absorbs the residual toner into the belt cleaning brush.

iii) Cleaning roller has been biased to the positive FCBV(V), the residual toner

absorbed into the cleaning brush is attracted by the positive FCBV(V) is

adhered to the surface of cleaning roller.

iv) Waste toner adhering to the surface of cleaning roller PU is scavenged by the

cleaning blade and collected to the waste toner pack by the waste toner feeder.

Cleaning Brush

Cleaning Roller

Waste Toner Feeder

Claening Roller PU

Drum

Residual
Toner

Transfer Belt

FCBV

Fig.4-22

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Содержание HL-2700CN Series

Страница 1: ...rother Color Laser Printer SERVICE MANUAL MODEL HL 2700CN Read this manual thoroughly before maintenance work Keep this manual in a convenient place for quick and easy reference at all times October 2005 ...

Страница 2: ...stered in the United States and other countries and True Type is a trademark of Apple computer Inc Epson is a registered trademark and FX 80 and FX 850 are trademarks of Seiko Epson Corporation Hewlett Packard is a registered trademark and HP Laser Jet is a trademark of Hewlett Packard Company IBM IBM PC and Proprinter are registered trademarks of International Business Machines Corporation Micros...

Страница 3: ...ctrical circuits and their timing information CHAPTER V CONTROL PANEL OPERATION Operation and setting procedures on the control panel CHAPTER VI PERIODIC MAINTENANCE Description of periodic maintenance parts and procedures for periodic replacement and cleaning CHAPTER VII DISASSEMBLY Procedures for replacement of the mechanical system parts CHAPTER VIII TROUBLESHOOTING Description of error message...

Страница 4: ...10 3 1 Ambient Temperature Humidity Altitude II 10 CHAPTER III INSTALLATION III 1 1 CONDITIONS REQUIRED FOR INSTALLATION III 1 1 1 Environmental Conditions III 1 1 2 Basic Layout of Printer Set up Location III 1 2 UNPACKING III 2 2 1 Unpacking of Printer III 2 2 2 Unpack the Starter Kit III 4 3 INSTALLATION WORK III 5 3 1 Install the Toner Cartridge PU III 5 3 2 Install the OPC Belt Cartridge III ...

Страница 5: ... V 10 3 1 Configuration of Operational Mode V 10 3 2 Operation of Normal Mode V 12 3 3 Service Mode V 19 3 4 Adjustment Work Procedures V 42 CHAPTER VI PERIODIC MAINTENANCE VI 1 1 GENERAL VI 1 1 1 Precautions in Handing VI 1 1 2 Cleaning for Periodic Maintenance VI 4 1 3 Periodic Maintenance Parts and Maintenance Cycle VI 10 2 PERIODIC MAINTENANCE PROCEDURES VI 12 2 1 Replacement of OPC Belt Cartr...

Страница 6: ... PU Interlock Switch PU Top Paper Exit Power Supply Fan Duct PU VII 21 4 12 Waste Toner Auger PU VII 22 4 13 Waste Toner Agitator PU VII 22 4 14 Erase Lamp PU VII 23 4 15 Marker Sensor VII 24 4 16 Toner Density Sensor PU VII 24 4 17 Cleaning Roller Clutch PU VII 25 4 18 Main Motor PU VII 25 4 19 Fuser Clutch PU VII 26 4 20 TR Cam Clutch VII 27 4 21 Registration Clutch PU VII 27 4 22 Paper Feed Clu...

Страница 7: ...uide PU VII 49 4 52 Exit Guide Assy PU Exit Drive Assy PU Exit Idle Roller Assy PU VII 49 4 53 Paper Sensor PFUL VII 51 4 54 Exit Roller Assy PU Paper Exit Actuator PU VII 51 4 55 Fuser Exit Actuator PU VII 52 4 56 Paper Sensor PT2 VII 52 4 57 Discharging Brush PU VII 53 4 58 Exit Fan PU Exit Fan Duct PU VII 54 4 59 Rear Cover Latch Assy PU VII 55 4 60 Paper Guide A PU VII 56 4 61 Paper Guide B PU...

Страница 8: ...CE OF ROLLERS A 5 3 SHELF LIFE OF EACH CONSUMABLE A 6 4 CONSUMABLES REPLACEMENT A 7 5 RE PACKING INSTRUCTIONS A 9 6 HIDDEN FUNCTION MENU A 11 6 1 Professional Menu A 11 6 2 Reset Parts Life A 23 6 3 Service Menu A 24 7 TO INSTALL THE PRINTER CORRECTLY A 27 8 HOW TO REWRITE HL2700 FLASH ROM A 31 9 NVRAM BACKUP A 33 ...

Страница 9: ...l covers the laser beam cannot escape from the machine during any phase of user operation FDA REGULATIONS FOR 110 120 V MODEL ONLY U S Food and Drug Administration FDA has implemented regulations for laser products manufactured on and after August 2 1976 Compliance is mandatory for products marketed in the United States One of the following labels on the back of the printer indicates compliance wi...

Страница 10: ...near the scanner unit 5mW 7 8 0 n m 8 0 0 n m DANGER INVISIBLE LASER RADIATION WHEN OPEN AVOID DIRECT EXPOSURE TO BEAM VORSICHT UNSICHTBARE LASERSTRAHLUNG WENN ABDECKUNG GEÖFFNET UND SICHERHEITSVERRIEGELUNG ÜBERBRÜCKT NICHT DEM STRAHL AUSSETZEN DANGER RAYON LASER INVISIBLE LORS DE L OUVER TURE EVITER L EXPOSITION DIRECTE PELIGRO RADIACION LASER INVISIBLE AL ABRIR EVITAR LA EXPOSICION DIRECTA AL HA...

Страница 11: ...e of the potential of human injuries Follow the recommended precautions and safety operation practices Understanding Signal Words DANGER is used to indicate the presence of a hazard which will cause severe human injuries or a fatal accident if the warning is ignored WARNING is used to indicate the presence of a hazard or unsafe practices which may cause severe human injuries or a fatal accident if...

Страница 12: ...hes a temperature of approx 170 C and adjacent parts are also very hot When you need to change the cleaning pad or remove jammed paper wait about 20 minutes after opening the paper exit unit to allow the unit to cool down CAUTION ROTATING PARTS Be aware of the potential danger of various rollers and take care not to get your fingers or hand caught into the machine this can cause serious injuries N...

Страница 13: ...oping unit carefully so as not to spill the toner CAUTION POWER CORDS PLUGS This printer is equipped with a 3 wire power cord fitted with a 3 pronged plug bi polar plug with grounding for the user s safety Use these power cords in conjunction with a properly grounded electrical outlet to avoid an electrical shock CAUTION SAFETY INTERLOCK The front cover paper exit unit and transfer unit of this pr...

Страница 14: ...lean against or apply any excessive force to the paper cassette open cover of Duplex unit Otherwise it may cause the product to decline or fall down and result in the injuries Front Door Lower Feeder Unit Rear Cover Unit ...

Страница 15: ...ATION WHEN OPEN AVOID DIRECT EXPOSURE TO BEAM VORSICHT UNSICHTBARE LASERSTRAHLUNG WENN ABDECKUNG GEÖFFNET UND SICHERHEITSVERRIEGELUNG ÜBERBRÜCKT NICHT DEM STRAHL AUSSETZEN DANGER RAYON LASER INVISIBLE LORS DE L OUVER TURE EVITER L EXPOSITION DIRECTE PELIGRO RADIACION LASER INVISIBLE AL ABRIR EVITAR LA EXPOSICION DIRECTA AL HAZ MAS ...

Страница 16: ...viii 3 Rating Label 6 0A 11 0A For Europe For US ...

Страница 17: ...for any reason you must ship the printer carefully package the printer to avoid any damage during transit It is recommended that you save and use the original packaging The printer should also be adequately insured with the carrier ...

Страница 18: ...CHAPTER I PRODUCT OUTLINE ...

Страница 19: ...ing High Resolution Control HRC The high resolution control HRC technology gives you clear and crisp printouts and improves even the 600 dpi resolution HRC is most effective when printing text data Color Advanced Photoscale Technology CAPT This printer can print graphics in 256 shades for each color in PCL6 emulation and BR Script3 producing nearly photographic quality CAPT is most effective when ...

Страница 20: ...pending on the interface port through which it receives data With this feature the printer can be connected to more than one computer Five Emulation Modes The printer can emulate Hewlett Packard Color PCL 5C PCL6 in monochrome mode and PostScript 3 language emulation Brother BR Script 3 printers the industry standard HP GL plotter as well as EPSON FX 850 and IBM Proprinter XL printers in monochrom...

Страница 21: ...nce laser printers consume power to keep the fixing assembly at a high temperature this feature can save electricity when the printer is ON but not being used The factory setting of the Power Save mode is ON so that it complies with the EPA Energy Star new specification Toner Save Mode The printer has an economical toner save mode By using this feature you can substantially reduce operating costs ...

Страница 22: ...t Cover PU Paper Stopper Paper Tray PU Right Side Cover PU Release Lever H Top Cover PU Rear Cover Assy PU Release Lever Fig 1 1 Rear View Rear Cover Assy PU Interface Control Box AC Input Inlet Left Side Cover PU Upper Duplex Cover PU Lower Duplex Cover PU Power Switch Fig 1 2 ...

Страница 23: ...n clearing the internal jam or doing the maintenance 5 Power Switch To power on or off the printer Located at the lower left of the left side cover PU 6 AC Input Inlet To connect a power supply cable 7 Interface Connector Box Space for a controller board to be installed 8 Upper Duplex Cover PU Cover to be provided at the duplex transportation inlet and to be removed when installing the duplex unit...

Страница 24: ... Belt Cartridge PU To forms images including the OPC belt 3 Cleaning Roller PU To clean and collect waste toner adhered to the transfer belt unit PU 4 Fusing Unit FU To fuse by heat the toner images on the paper 5 Transfer Base Assy PU To transfer toner images from the transfer belt to the paper 6 Transfer Unit PU To form color images maintaining the toner images of belt cartridge PU on the OPC be...

Страница 25: ...to the Video Controller Mode when the power is turned on by pressing the power button The Video Controller Mode supplies the general test printing and setting functions and some of the maintenance operations If further engine settings are required use the Engine Controller Mode 4 2 Engine Controller Mode The printer goes into the Engine Controller Mode when power is turned on by pressing the power...

Страница 26: ...I 8 Job Cancel Go SET 1 2 3 5 7 9 4 6 8 BACK Fig 1 4 No LED Button Name 1 LCD 16 character by 2 lines 2 Alarm LED 3 Online LED 4 Job Cancel Key 5 Go Key 6 Key 7 Set Key 8 Key 9 Back Key ...

Страница 27: ...CHAPTER II SPECIFICATIONS ...

Страница 28: ...oltage V Frequency Hz Input Current A Power Cord Piece US Canada 120 50 60 11 1 Europe 220 240 50 60 6 1 For the model for Europe the power supply cable depends on the country as follows Figure Rating Approval Agency Applicable Area A VDE DEMKO SEV Europe Continent B 250VAC 6A BS UK Figure A For Europe Sample 2 5m Figure B For UK 2 5m Note For details of other power supply cables refer to the part...

Страница 29: ...int delivery from standard upper tray feed Print media Toner in a single color single component cartridge Life Expectancy 10 000 single sided pages cartridge Black 6 600 single sided pages cartridge Cyan Magenta Yellow Note These figures are based on an average of 5 coverage of the printable area for one color using laser paper The frequency of replacement will vary depending on the complexity of ...

Страница 30: ... Control panel 6 buttons 2 LEDs and a 16 column x 2 lines liquid crystal display Diagnostics Self diagnostic program 2 3 Electrical and Mechanical Power source U S A and Canada AC 120V 50 60Hz Europe and Australia AC 220 to 240V 50 60Hz Power consumption Printing 670W or less Standing by 200W or less Sleep 17W or less Noise Printing Lwad 6 6B or less second power level Standing by Lwad 5 4B or les...

Страница 31: ...Professional Windows based management utility TELNET Command Console SNMP MIB 2 Host Resource MIB Printer MIB Brother MIB HP JetAdmin Compatible Firmware update 8MB flash ROM Use parallel I F or BRAdminProfessional with following protocols when upgrading print server software Protocols TFTP PUT GET NETWARE GET FTP PUT Supplied software BRAdminProfessional for Windows 95 98 ME NT 4 0 2000 XP A port...

Страница 32: ...heets Post Card 25 cards Transparency 50 sheets Label 80 sheets 5 Setting method Pull the media tray out of the printer toward you insert the paper into the tray after aligning the top edge of the sheets then push the tray back into its original position Paper Source Printable Media Size Plain paper A5 A4 Letter B5 Executive The Standard Paper Tray Envelope COM10 DL Other size width 105 216mm 4 1 ...

Страница 33: ...µ m 95 6 Smoothness Bekk seconds 90 20 Stiffness Clark 100 15 Brightness 85 2 Surface Resistance Ω 1010 1011 Grain Direction Long Measurement Condition 17 5 27 0 C 50 70 RH Note Keep the paper sealed in the bag as supplied and do not open the paper bag until the paper is required for use 2 5 4 Effective Printing Area 1 Printable area A E C E B D F F The effective printing area means the area withi...

Страница 34: ...4mm 6 82 2 049 dots 248 5mm 9 78 2 935 dots Ç Ç B5 ISO 176 0mm 6 93 2 078 dots 250 0mm 9 84 2 952 dots 167 54mm 6 59 1 978 dots 241 5mm 9 5 2 852 dots Ç Ç Executiv e 184 2mm 7 25 2 175 dots 266 7mm 10 5 3 150 dots 175 74mm 6 91 2 075 dots 258 3mm 10 17 3 050 dots Ç Ç COM 10 104 8mm 4 125 1 237 dots 241 3mm 9 5 2 850 dots 96 34mm 3 785 1 137 dots 232 8mm 9 16 2 750 dots Ç Ç D L 110 1mm 4 33 1 299 d...

Страница 35: ...mm 16mm Non printable area Non guarantee area Print guarantee area 2 5 5 Paper Feed Jam Rate Less than 1 misfeed per 2000 pages under normal environmental conditions Less than 1 misfeed per 1000 pages outside the normal environmental conditions Note These figures are based on the paper whose specification is recommended For the recommended specifications refer to Section 2 5 3 Recommended Paper Sp...

Страница 36: ...dge 130 130 130 170 220 220 220 270 Toner Cartridge Weight at Toner Near Empty 690 690 690 700 690 690 690 700 Remain Toner Weight at Toner Near Empty 60 60 60 60 60 60 60 60 Toner Cartridge Weight at Toner Empty 680 680 680 690 680 680 680 690 Remain Toner Weight at Toner Empty 50 50 50 50 50 50 50 50 The above numbers are the approximate figures but not guaranteed In addition to the number liste...

Страница 37: ...ure below 10 0 17 5 20 27 30 32 5 40 Recommended Condition 17 5 27 50 70 RH 20 60 70 80 40 Ambient Humidity RH Ambient Temperature C C 50 Zone A Zone B Operation Area other than Zone A 2 Under Non Operational conditions 5 0 35 0 C 10 80 RH See the figure below 10 0 20 30 35 40 20 60 80 40 Ambient Humidity RH Ambient Temperature 5 30 10 C ...

Страница 38: ... Temperature 35 C 40 C 95 F 104 F Low Temperature 10 C 0 C 14 F 32 F Humidity 10 90 RH Period of Storage One Year Other No Condensation Atmosphere 613 1 067hpa 460 880mmHg The period under the severe conditions should not be continuous and is assumed as an accumulation of intermittent time However an individual period of intermittent time under severe conditions should not be allowed to exceed 48 ...

Страница 39: ...III 1 CHAPTER III INSTALLATION ...

Страница 40: ... Conditions The printer should not be set up in the locations referred to in the following items a through d which specify inappropriate locations for set up a Where it is likely to receive direct sunlight or similar light For example next to a window b Where it is likely to suffer a big difference in temperature and humidity between the maximum and minimum levels Normal operation environment is w...

Страница 41: ...0cm 20 20cm 8 42cm 16 5 48cm 18 9 Table Power Cord 480 W x 420 D x 385 H mm 18 9 W x 16 5 D x 15 2 H inch Fig 3 1 The space in front of the printer 70cm is necessary to open the front cover The space at back of the printer 25cm is necessary to open close the rear access cover The space on right side of the printer 50cm is necessary for general access The space on left side of the printer 20cm is n...

Страница 42: ...ery and may result in damage and injury if dropped 2 1 Unpacking the Printer Refer to Fig 3 2 on the next page 1 Carefully cut the 2 tape and open the 1 carton 2 Remove the B starter kit and 4 power code tray 3 Open the 3 starter cushion and remove the 5 OPC belt cartridge from the box 4 Lift and remove 6 Upper cushion two pieces 5 Lift up the Laser printer A and put it in the setting location Thi...

Страница 43: ... Tray 1 5 Polyethylene Bag 1 6 1 7 1 8 1 9 1 10 1 F Tape F Tape 2 Construction of Packing No Name of Parts A Laser Printer 1 B Starter Kit 1 C Power Code 1 1 Packing List 1 11 10 A C 4 Q ty Q ty F Tape F Tape Front Cushion 12 8 9 6 3 11 Outer Box Tape 1 7 2 B 12 OPC Cartridge 1 5 6 Fig 3 2 ...

Страница 44: ...ge PU with polyethylene bag from 3 Starter Cushion 3 Remove polyethylene bag from Belt Cartridge PU Fig 3 3 CAUTION Starter Kit belt cartridge PU is unique for this printer If you use any non unique consumables it may deteriorate the print quality and break down the engine No Kit Name Appearance Quantity 1 Belt Cartridge PU 1 ...

Страница 45: ...tridge PU 4 Remove the shipping protect cover In this instance remove the tape attached around the shipping cover 5 Install each toner cartridge to the printer 6 Close the front cover PU Toner Cartridge PU Shipping Protect Cover Front Cover PU Release Lever F Toner Cartridge PU Shipping Support Remove the protective cover Open the front door of the printer Fig 3 4 CAUTION Do not push hard nor poun...

Страница 46: ...nit prior to the test drive otherwise the paper jam and fusing error are caused while driving 1 Open the Rear Cover Assy PU 2 Pull out the tension release pin provided at the left and right side of fuser unit 3 Close the Rear Cover Assy PU Rear Cover Assy PU Fuser Unit Fu Fuser Unit FU Tension Release Piece Fig 3 5 ...

Страница 47: ...t may be damaged 1 Prepare the belt cartridge PU to be installed 2 Open the top cover PU Release Lever C Fig 3 6 3 Pull out the belt tension release pin 1 piece for both sides provided for shipping Tension Release Pin Belt Cartridge PU Protect Sheet Fig 3 7 4 Remove the protective sheet covering the surface of belt cartridge PU 5 Push the belt cartridge PU along the guide left and right into the p...

Страница 48: ... cartridge and turning out the lock lever BC provided at the left and right side of the belt cartridge PU Fig 3 8 7 Confirm by lightly pulling the belt cartridge up that the belt cartridge is fixed 8 Close the top cover PU ...

Страница 49: ... connector of power supply cord to the printer Fig 3 12 3 Plug the power supply cord in the outlet Fig 3 13 4 1 Simultaneously pressing marked three keys on the operator panel turn the power switch ON 2 Press the Job Cancel key as shown in the Figure b 5 Alarm LED lamp changes to be lit within 45 seconds at max when screen b appears on the operator panel display a Indication at Warming UP Job Canc...

Страница 50: ...mal printing by test printing according to the following procedures 1 Procedure of Test Print Step Operation Details of Operation 1 Upon completion of the warming up process printer is ready to print and waits for PRINT signal See the power on in Section 3 4 1 2 Test Print See Item 2 Test Print Procedures for details Printer has the following built in print patterns for test printing 1 Grid Patter...

Страница 51: ... the screen a to b Press Set key so that display changes from the screen b to c Select GRID or STRIPE pattern with scroll key GRID to be selected Press Setkey so that display changes from the screen c to d Select the color to be printed with scroll key R to be selected Press Set key so that display changes from the screen d to e Warming up starts and continuous print will be automatically carried ...

Страница 52: ...rry out the online print according to the following procedures 5 Step Operation Details of Operation 1 2 3 4 Connect the interface cable to the control box Set the power switch to ON side Confirm that the printer is set to the online mode See the figure in the right column for details Confirm the indication of the operator panel Upon completion of the warming up procedure Alarm LED lamp is lit The...

Страница 53: ...CHAPTER IV STRUCTURE OF SYSTEM COMPONENTS ...

Страница 54: ...Cleaner Part 2 Scanning System The scanning system consists of the following 2 two functional parts which form an electrostatic latent image on the OPC Belt by scanning it with a laser beam Scanner Unit Scanner Motor SCM 3 Transfer System The transfer system consists of the following 3 three functional parts and transfers the toner image formed on the transfer drum onto the page First Transfer Tra...

Страница 55: ...r Feed Paper Cassette DC Charger Laser Assy I F Controller I F Control Sequence Control Laser Control Cleaning Transfer Unit Belt Cartridge Unit Main Motor Developer Motor Toner Cartridge Laser Diode Scanner Motor Resistration Roller MM DM LD SCM MCTL K Y M C Second Transfer Transfer Belt Belt Cleaning First Transfer OPC Belt Raer Cocer Assy Fig 4 1 ...

Страница 56: ...active process C B K G M R Y Y Yellow M Magenta C Cyan R Red G Green B Blue K Black Fig 4 2 2 Basic Color Printing Process a The printer has a Toner Cartridge of each color yellow magenta cyan and black as shown in Fig 4 3 b The toner image developed using the primary colors is transferred to the transfer drum for the printed color combination as shown in Fig 4 4 a c The toner image formed on the ...

Страница 57: ...Belt Transfer Belt Toner Cartridge Y M C K Fig 4 3 Y Y Y M M M C C Y Y Y C C C Transfer Belt M M M Y Y Y C C C C C Y Y Y Paper Paper Red Green Cyan Toner R C G a First Transfer b Second Transfer C Fusing Fig 4 4 ...

Страница 58: ... layer of an insulator material PET Mylar and an aluminum deposit layer in between The OPC belt is located as shown in Fig 4 5 as the main part of the print system Belt Cartridge Laser Assy Transfer Belt Toner Cartridge OPC Belt Charger Roller Fig 4 5 Photoconductor OPC Aluminum Deposit Layer Insulator Material Electrode Fig 4 6 ...

Страница 59: ... to 6 are required to form a full 24 bit color image on the transfer drum only one cycle of actions 7 8 and 9 is required to transfer the image to the paper from the transfer drum ready for fixing by actions 10 and 11 1 Chargimg 2 Exposing 4 First Transfer Transfer Belt OPC Belt 3 Developing Transfer Belt 5 Belt Discharge 6 OPC Belt Cleaning 7 Second Transfer Paper 9 Paper Dischanging 8 Transfer C...

Страница 60: ...aning Blade Cleaning of OPC Belt 8 Transfer Roller Assy PU Transferring 9 Cleaning Roller PU Cleaning of Transfer Belt 10 Fuser Unit FU Fusing 11 Rear Cover Assy PU Paper Exit Unit Exiting of Paper Paper Tray PU Laser Assy PU 2 Toner Cartridge PU K Y M C 3 Belt Cartridge PU Cleaning Roller PU 9 4 Fuser Unit FU Rear Cover Assy PU Paper Exit Unit 10 11 Transfer Roller Transfer Belt Paper Feed Roller...

Страница 61: ...lied to the charger unit by the power supply CHV and a corona is generated as the result iii The developer magnetic roller of the toner cartridges is biased to DBV V by the power supply DBV iv The frame potential of the transfer drum is GND Fuser Unit FU Paper Tray PU OPCBelt Erase Lamp PU Cleaning Blade Laser Assy PU Cleaning Roller PU Rear Cover Assy PU Transfer Belt Transfer Roller Paper Feed R...

Страница 62: ...difference of potential between VR V the latent image and DBV V and a visible toner image is formed as the result v Negatively charged toner on the OPC belt moves to the transfer drum surface in the transfer process because the GND potential of the transfer drum is greater than VR V of the OPC belt vi The OPC belt is discharged by the erase lamp CBV CBV CBV CBV V0 V0 V0 V0 V0 V0 V0 V0 V0 V0 brothe...

Страница 63: ...ii Charge High Voltage is applied to the OPC charger roller PU iii Brush surface of the charger roller contacts and charges the OPC belt surface evenly 2 Process of Charging Refer to Fig 4 12 i The status of the OPC belt surface before charging is CBV V ii OPC charger roller PU charges evenly the OPC belt surface till V0 V by generating negative charge CHV OPC Belt OPC Charger Roller PU Fig 4 11 C...

Страница 64: ... and reflective mirror to form an electrostatic latent image 2 Process of Exposing Refer to Fig 4 13 i The OPC belt surface has been charged to the potential Vo V in the charging process ii Laser beam is scanned as rectangular to the forwarding direction of OPC belt iii High speed switching of laser is made according to the transmitted image data iv Charge of the areas radiated by the laser beam i...

Страница 65: ...oner cartridge PU Developing is processed by this Dev roller contacting the OPC belt surface ii Dev roller has been biased to the potential DBV V Fig 4 15 describes the relationship established between the potential of toner the potential V0 V at the non exposed area of OPC belt and the potential VR V at the exposed area of OPC belt iii Developing is processed by the toner adhering to the OPC belt...

Страница 66: ...IV 13 Fig 4 14 CBV DBV Fig 4 15 Y M C K Fig 4 16 OPC belt Developer roller Toner OPC Belt Toner M Exposing Developing Toner Developer roller Toner cartridge Toner Electrostatic latent image ...

Страница 67: ... Belt Refer to Fig 4 8 i First transfer part is located as shown in Fig 4 8 ii Material of the drum is aluminum iii The belt composed of the special film is provided to the drum surface as shown in Fig 4 17 iv As Transfer Belt contacts the OPC belt it rotates synchronous with the drum Aluminum Drum Tube Aluminum Drum Tube Film Transfer Belt Transfer Belt Fig 4 17 ...

Страница 68: ... moved onto the transfer belt due to the difference of potential between the OPC belt and transfer belt iv Toner that has been developed by each color is moved from the OPC belt onto the transfer belt and two color toner image is overlapped on the transfer belt v Upon completion of the first transfer process the toner image is transferred onto a paper in the process of paper transfer Residual Char...

Страница 69: ...cated as shown in Fig 4 8 ii Luminous source of erase lamp is the 6 pieces of light emitting diodes LED 2 Process of Discharging Refer to Fig 4 19 i Though a toner image is transferred to the transfer belt in the first transfer process there is still a residual charge on the OPC belt ii Residual charge VR V on the OPC belt is discharged by the radiation of erase lamp s light prior to cleaning the ...

Страница 70: ...ge as shown in Fig 4 8 2 Process of OPC Belt Cleaning Refer to Fig 4 20 i There is a residual toner on the OPC belt as it has not been transferred in the process of first transfer ii Residual toner is mechanically scavenged by the blade edge iii The scavenged residual toner is collected in the waste toner pack by the waste toner feeder OPC Belt Discharging Erase Lamp PU OPC Belt Cleaning Brade Fir...

Страница 71: ... and transfer belt 2 Process of Belt Cleaning Refer to Fig 4 21 i Paper is transported as synchronizing with the transfer belt ii Transfer roller operates as synchronizing with the transported paper and contacts with the transfer belt through the transported paper iii Transported paper passes between the transfer roller and transfer belt In this instance the positive high voltage THV is injected t...

Страница 72: ...g to the belt cleaning brush 2 Process of Transfer Belt Cleaning Refer to Fig 4 22 i There is the residual toner on the surface of transfer belt after the paper transfer process ii Cleaning brush is positively self biased Cleaning brush has the negatively charged residual toner fall off from the surface of transfer belt and electrically absorbs the residual toner into the belt cleaning brush iii C...

Страница 73: ...r Unit Refer to Fig 4 23 Laser assy PU is located as shown in Fig 4 23 Laser assy PU consists of following parts c Laser Assy Light emitting source incorporating a laser diode d Cylinder Lens Condenser of laser beam e Polygon Mirror Hexahedral mirror scanning the laser beam f F θ Lens Focus lens for laser beam g Scanner Motor Motor to rotate the polygon mirror h Mirror Reflecting mirror for the la...

Страница 74: ...Unit is described as follows Item Specifications Rated Output of Laser Diode 5mW Wave Length of Laser Beam Approx 785nm Scanning Density 600dpi Scanning Width 314mm Rotations Per Minutes of Scanner Motor 35 904rpm Number of Polygon Mirror Faces 8 ...

Страница 75: ... Paper Transportation System consists of following parts c Paper Tray PU Case to accommodate papers to be automatically fed d Paper Feed Roller PU Roller to feed paper one by one preventing multi feed e Registration Roller PU Roller to transport papers as synchronizing with the transfer belt f Transfer Roller PU Component to be built in the paper exit unit consisting of the paper guide registratio...

Страница 76: ...IV 23 1 Paper Tray PU 5 Fuser Unit FU 2 Paper Feed Roller PU 6 Rear Cover Assy PU Paper Exit Unit 3 Resistration Roller PU 7 Exit Roller Assy PU 4 Transfer Roller PU Transfer Belt 1 2 3 4 5 6 7 Fig 4 24 ...

Страница 77: ...e is melted and fused on the paper 1 Structure Fuser Unit consists of the following component members Refer to Fig 4 25 c Fuser Roller Heating roller that incorporates the heater in the roller d Back Up Roller Belt unit that presses the paper against the fuser roller e Fusing Heater Halogen lamp f Thermistor Sensor that detects temperature of fuser roller s surface g Thermostat Device that prevent...

Страница 78: ...ox 150 C and received approx 200N from the opposite heat roller f When the paper carrying the toner images passes between the tow heat rollers the toner images are melted and fused on the transported paper g The paper carrying the fused image is separated from the heat rollers and ejected from the printer M Y C M Y Toner Image Paper a Before Fusing M R G Fixed Toner b After Fusing M Magenta toner ...

Страница 79: ...exit d Laser Output Control To control automatically the laser output to the default e Fuser Temperature Control To control the fuser heater so that temperature of fuser roller and back up roller will be the default f Toner Sensing Control To control the sensing procedures of toner empty status g Interface Control Video Signal To process the input and output signal with the external controller hos...

Страница 80: ...ogram Fusing Unit DC Power Supply Unit High Voltage Unit Interlock Switches Paper Sensor P EN Main Motor 2 Paper Sensor F CL Paper Sensor PT1 Paper Size Sensor PSU Paper Sensor EXF OHP Sensor 3 OHP Belt Sensor DPJ Paper Sensor F CL Toner Key Sensor 2 TNK Paper Sensor D EN Belt Sensor PBS Paper Sensor PT2 Waste Toner Sensor WTS Toner Sensor ASSY Developer Position Sensor Paper Full Sensor Temperatu...

Страница 81: ...osition to be included in the Optical unit 5 Erase Lamp PU To discharge the OPC belt by radiating the LED beam onto the OPC belt to be included in the Optical unit 6 I O Board PU IOD P W B To relay the signals between the controlled parts and MCTL P W B and to drive the controlled parts 7 LV Power Supply PU DC Power Supply Unit LVPS To provide the Printer with the power supply for the printer cont...

Страница 82: ...ng unit 5 Power Supply Fan PU PSFAN To exhaust the heat of power supply unit and Interface Controller 6 6 1 6 2 6 3 Interlock Switch PU Front Cover Switch Paper Exit Cover Switch Rear Cover Switch DSW1 DSW2 DSW3 This the safety interlock switch when opening the cover 7 Laser Fan PU LDFAN To exhaust the heat of laser assy Exit Fan PU Paper Exit Cover SW PU Power Supply Fan PU Rear Cover SW PU Scann...

Страница 83: ... to the main gear unit 4 Cleaning Roller Solenoid PU FBSOL To drive the brush of drum cleaner by coupling the cleaner clutch to the main gear unit at timing of the drum cleaning 5 8 Developer Clutch PU DCL Y M C K To drive the Mg roller of desired color toner cartridge by coupling said toner cartridge to the developer gear unit at timing of the developing 9 Toner Retract Solenoid PU DSL Y N C K To...

Страница 84: ...IV 31 Layout of Clutches and Solenoids 1 2 3 4 5 6 7 8 9 10 Fig 4 30 ...

Страница 85: ...Unit Sensor PU TBS Photo sensor to detect irregular rotation of the transfer belt 8 OPC Marker Sensor PU PBS Photo sensor to detect the connecting position of the OPC belt 9 Toner Sensor PU TPD TTR Photo sensor to detect if the toner is empty or not for each toner cartridge 10 Waste Toner Sensor PU WTS LED TR Photo sensor to detect that the waste toner bottle is full of waste toner 11 Temperature ...

Страница 86: ...oner Sensor PU 10 Waste Toner Sensor Waste Toner Holder Assy PU 1 Paper Size Sensor PU 4 Tray Empty Sensor PU 2 Registration Sensor PU 5 OHP Sensor PU 7 Transfer Unit Sensor PU 8 OPC Marker Sensor PU 3 Fuser Exit Sensor PU 13 Toner Key Sensor PU 6 Toner Density Sensor PU 14 Room Temp Thermistor Sensor PU ...

Страница 87: ...rature Control Operator Panel Control Error Clearance Program Laser Power Control I F Control Fig 4 32 1 Control Block Diagram Refer to Fig 4 32 No Name Function 1 Sequence Control To control the print sequence of printer 2 Temperature Control To control the temperature of fuser unit 3 Consumables Life Control To control the toner empty status and the life of periodic replacement parts 4 Operator ...

Страница 88: ...ensed by the photo detector PD and the detecting signal is fed back to the output control circuit 3 Output control circuit controls the radiation output to be constant by comparing the laser output default with the feed back value transmitted from the output sensing circuit 4 Laser beam scanned by the scanner motor is sensed by the beam detector PD and then the beam detecting timing BDT signal wil...

Страница 89: ... further heating when it will be hotter than the set point within the fuser unit FU GA CPU Process circuit to process the temperature signal micro computer CM1 Sensor circuit for temperature signal for ACOFF signal CM2 Sensor circuit for temperature signal for HON signal CM3 Sensor circuit for temperature signal for processing Q Sensor circuit for shut down by the thermistor for THERR signal HR Ba...

Страница 90: ...IV 37 ...

Страница 91: ...as wire cut occurred in the circuit the wire cut detection signal THERR is outputted This signal works to turn off the relay RY 1 and the triac FLS and subsequently stops the printer H1 If the surface temperature of the heat roller continues to be higher than the preset value of abnormal temperature TA for more than the specified time CPU forces the HON signal and ACOFF signal to turn off accordin...

Страница 92: ... and transmits the synchronized video data to Printer laser diode Operator Panel is physically resident on the engine b Interface Connection Interface Circuit Internal Connecting System Operator Panel Duplex unit Option Lower Feeder Unit Option DC Power Supply Printer Engine Controller Laser Printer Controller LPC Customer design Video Interface DC Power Supply Connector Host System 5V 1A max 3 3V...

Страница 93: ...IV 40 c Interface Circuit Printer side Table 4 1 Interface Circuit ...

Страница 94: ...10A RET GND 10B Reserve 11A Reserved 11B HSYNC N 12A ID2 N 12B Reserve 13A RET GND 13B VSYNC N 14A RET GND 14B Reserve 15A RET GND 15B STATUS 16A RET GND 16B IREADY N 17A RET GND 17B Reserve 18A RET GND 18B COMMAND 19A RET GND 19B PRREQ N 20A RET GND 20B Reserve 21A Reserved 21B Reserve 22A RET GND 22B KEY_STATUS N 23A Reserved 23B Reserve 24A Reserved 24B Reserve 25A RET GND 25B Reserve 26A RET G...

Страница 95: ...ert the received data to the bitmap data such as characters or graphics Control the engine and send the generated bitmap data as a video signal The control panel is controlled by communicating with the engine CPU to display LCD messages light the LEDs and display the button status etc The power for the Main PCB is supplied from the engine through the engine interface connector ...

Страница 96: ...ODIMM SLOT PC100 Mask ROM 64Mbit Mask ROM 64Mbit Flash ROM 64Mbit Flash ROM 64Mbit Compact Flash SLOT Xtal 12MHz 08 08 74LCX 245 74LCX 245 74LCX 245 74LCX 245 74LCX 245 to PC to PC DATA0 7 DATA0 7 ADDRESS D0 D15 D16 D31 D32 D63 SDCLK0 SDCLK1 SDCLK2 D0 D15 D16 D31 D0 D15 D16 D31 ADDRESS Main PCB Diagram 1 1 Fig 4 37a ...

Страница 97: ...roller Ethernet Regulator 1 8V E N G I N E Xtal 25MHz Xtal 28 57269 MHz Reset IC SSCG Xtal 32 768 MHz Super Capacitor 3 3V 3 3V 5 0V CPUCLK 100MHz SDCLK0 100MHz SDCLK1 100MHz SDCLK2 100MHz PCI R T C 100MHz Spectra Spreaded Video P Video N LVDS P L L P C I PLL RESET AD BUS COMMAND CPUCLK 5 0V Max 2 0A 3 3V Max 3 0A RESET 100MHz Fig 4 37b ...

Страница 98: ...tsu Appearance 576pin BGA Functions Controls CPU Controls memory Controls interrupts Timer External interfaces Centronics PCI IDE Compact Flash USB Engine interface Video signal control LVDS Supports Software 3 ROM block The ROM stores the CPU control program and font data ROMs used are an 8Mbytes masked ROM and an 8 Mbytes flash ROM which can be rewritten on the board Masked ROM Access time less ...

Страница 99: ...ecommended DIMM type US 64MB Techworks 12345 0001 128MB Techworks 12462 0002 256MB Techworks 12469 0001 Europe 64MB Buffalo Technology VN133 64M 128MB Buffalo Technology VN133 128M 256MB Buffalo Technology VN133 256M 512MB Buffalo Technology VN133 512M Any combination of DIMM size can be installed into any slot in any order but it is recommended that the larger DIMM is install in Slot 0 For more i...

Страница 100: ...izontal synchronization signal for printing VIDEO Video data signal COMMAND Command signal sent from the controller to the engine STATUS Status signal sent from the engine to the controller Fig 4 39 shows the timing of each signal after the power switch is turned on Power On IREADY N PRREQ N VSYNC N VIDEO P VSYNC N HSYNC N VIDEO P K data 45 sec MAX 20 sec MAX 0 1sec MIN C data Y data M data 207 77...

Страница 101: ...tion method Command Status communication must keep the Handshake Rule Baud rate is 9600 bps Frame format one 1 start bit eight 8 data bits Start bit side is LSB Parity bit is MSB one 1 odd parity bit one 1 stop bit The video controller has to send an Initialize Command to the engine controller after power on in order to establish communication The power for the Main PCB is supplied through the eng...

Страница 102: ...IV 49 Main PCB circuit Diagram 1 7 IV 49 CODE B512168CIR 1 7 LJ9515001 NAME ...

Страница 103: ...IV 50 Main PCB circuit Diagram 2 7 IV 50 CODE B512168CIR 2 7 LJ9515001 NAME ...

Страница 104: ...IV 51 Main PCB circuit Diagram 3 7 IV 51 CODE B512168CIR 3 7 LJ9515001 NAME ...

Страница 105: ...IV 52 Main PCB circuit Diagram 4 7 IV 52 CODE B512168CIR 4 7 LJ9515001 NAME ...

Страница 106: ...IV 53 Main PCB circuit Diagram 5 7 IV 53 CODE B512168CIR 5 7 LJ9515001 NAME ...

Страница 107: ...IV 54 Main PCB circuit Diagram 6 7 IV 54 CODE B512168CIR 6 7 LJ9515001 NAME ...

Страница 108: ...IV 55 Main PCB circuit Diagram 7 7 IV 55 CODE B512168CIR 7 7 LJ9515001 NAME ...

Страница 109: ...r 5V 1R For control of Laser 5V 2 5V 4 0A For control of Interface 2 0A MAX 3 3V 2 3 3V 3 5A For control of Printer 24V 1 24V 6 5A For control of printer charging HP HP2 120V 8A 1000W 220V 5A 1000W For connection of the fuser heater HP 2 Layout of Connector Pin Assignment See Fig 4 40 on the following page ...

Страница 110: ...IV 57 Layout of Connector Pin Assignment Power Supply Unit Fig 4 40 ...

Страница 111: ...d 24V Type 4 24V 1D 24V Output through Relay 5 PGND Power Ground 24V Type 6 24V 1D 24V Output through Relay 7 PGND Power Ground 24V Type 8 24V 1D 24V Output through Relay 9 SGND Signal Ground 5V Type 10 5V 1 5V 1 Output 11 SGND Signal Ground 5V Type 12 5V 1 5V 1 Output DC Power Supply Interlock Switch ACN2 Manufacture MoLex Type Pin No Signal Name Interface 1 DSW O 5V Output through Door Switch 3 ...

Страница 112: ...nal Ground 5V Type 14 5V 1 MCTL 5V 1 Output CNT 15 SGND MCTL Signal Ground 5V Type 16 5V 1 MCTL 5V 1 Output CNT 17 PGND Power Ground 24V Type 18 24V 1D 24V 1 Output through Releay 19 PGND Power Ground 24V Type 20 24V 1D 24V 1 Output through Releay 21 PGND Power Ground 24V Type 22 24V 1D 24V 1 Output through Releay DC Power Supply Unit Duplex ACN4 Manufacture MoLex Type Pin No Signal Name Interface...

Страница 113: ...ugh Door Switch 7 BRON N Back Up Roller Heater ON Signal Pull Up required 8 DCOFF1 P 24V 1 OFF Signal 9 ACOFF P 10 HIRON N Heater ON signal 11 ACSYNC N AC Zero Cross Signal 12 SWRUS P Power Supply ID Connection to GND 13 PGND Power Ground 24V Type 14 24 24V Output 15 PGND Power Ground 24V Type 16 24 24V Output 17 PGND Signal Ground 5V Type 18 CN CHK Connection Check 19 PGND Signal Ground 5V Type 2...

Страница 114: ...ical V Charging BRV 850 1 Charging Cleaning OLV 200 Transfer THVT 1 3k 2 First Transfer Cleaning THVR 300 YK DBV YK 180 3 Developing Bias MC DBV MC 180 4 Belt Bias CBV 350 5 Belt Cleaning FCBV 1 0k 2 Layout of Connector Pin Assignment See Fig 4 41 Layout of Connector Pin Assignment High Voltage Power Supply Unit Fig 4 41 ...

Страница 115: ...n signal 9 PWMON N PWM control on signal 10 BRVPWM N BRV PWM control on signal 11 BRVERR BRV ERR sensor signal 12 CBVPWM N CBV PWM on signal 13 THVRON N THVR output on signal 14 DBV MC PWM N DBV MC PWM control signal 15 THVPWM N THV PWM on signal 16 DBV YK PWM N DBV YK PWM control signal 17 THV 1 THV 1 Output select signal 18 FCBVPWM N FCBV PWM control signal 19 BRV ERR2 sensor signal 20 PGND N C ...

Страница 116: ...CL C REAR COVER ASSY PU FUFAN PT2 PFUL LASER FUN PU 33 13 12 11 2 32 TNK DSL C DSL M DSL Y DSL K 14 15 IOD P W B HVCN I1CN I2CN PACN P3CN MCTL P W B DPCN TACN LCN FUCN LVCN POCN DVELOPER MOTOR MAIN MOTOR PU 30 LFU Connector TONER SENSOR PU TTR TPD ERASE LAMP PU FUSER UNIT FU TBS PT1 PEU OHP PSFAN PSU RT 16 17 18 19 20 21 22 23 24 1 THS1 THS2 HP HEATER THERMISTOR 27 FUSER CONNECTOR HV POWER SUPPLY ...

Страница 117: ...ower Supply Unit PU PT2 Fuser Exit Sensor PU MCTL Engine Controller Board PU MCTL P W B PBS OPC Maker Sensor PU PANEL Operator Panel Assy PU TBLE TBFL Waste Toner Holder Assy LCD LCD P W B TBS Transfer Unit Sensor PU Laser Assy Laser Assy PU SM Scanner Motor PDU PDU P W B 2 LDU Laser Drive Unit P W B 2 MM Main Motor PU FBSOL Cleaning Roller Solenoid PU DM Developer Motor PU TRCL Transfer Roller Cl...

Страница 118: ...IV 65 1 MCTL P W B I1CN IOD P W B DCN1 2 MCTL P W B I2CN IOD P W B DCN3 ...

Страница 119: ...IV 66 3 HV Power Supply Unit BCN1 MCTL P W B HUCN 4 MCTL P W B PPCN Duplex Unit 5 LCN MCTL Laser Assy 6 MCTL P W B 7 MCTLP W BFUCN FuserConnector ...

Страница 120: ...IV 67 8 LVPowerSupplyUnitACN5 MCTLP W BLVCN 9 LVPowerSupplyUnitACN3 MCTLP W BPOCN 10 MCTLP W BPACN PANELP W BPCN2 11 MCTLP W BP3CN PANELP W B ...

Страница 121: ...IV 68 12 IODP W BDCN4 DeveloperSolenoid 13 IODP W BDCN5 OPCMarkerSensor 14 IODP W BDCN7 PaperExitUnit 15 IOD P W B DCN10 Clutches 16 IODP W BDCN11 DeveloperMotor ...

Страница 122: ...IV 69 17 IODP W BDCN12 MainMotor 18 IODP W BDCN13 LVPowerSupplyUnitACN1 19 IODP W BDCN14 LowerFeederUnit 20 IOD P W B DCN15 Toner Sensor 21 IODP W BDCN16 PaperSensors 22 IODP W BDCN18 InterLockSwitch ...

Страница 123: ...N19 PaperSizeSensor 24 IODP W BDCN20 PowerSupplyFan 25 IODP W BDCN21 LVPowerSupplyUnitACN5 26 ACN2 InterlockSwitch 27 LVPowerSupplyUnitACN4 DuplexUnit 28 LVPowerSupplyUnitACN7 FuserConnector 29 LVPowerSupplyUnitACN6 Input ...

Страница 124: ...IV 71 30 Duplex Connector 31 Lower Feeder Connector 32 DCN2 IOD 33 DCN8 IOD LaserFan ...

Страница 125: ...CHAPTER V CONTROL PANEL OPERATION ...

Страница 126: ...ONTROL PANEL OPERATION 1 PANEL LAYOUT Job Cancel Go SET 1 2 3 5 7 9 4 6 8 BACK Fig 5 1 No LED Key Name 1 LCD 16 character by 2 lines 2 Alarm LED 3 Online LED 4 Job Cancel Key 5 Go Key 6 Key 7 Set Key 8 Key 9 Back Key ...

Страница 127: ... test for each function in the Video Controller Mode mainly for use when replacing the main video controller PCB Whenever the video controller is replaced these checks should be carried out This mode provides performance tests for the engine LCD control panel keys and various sensors 3 DRAM Test Mode This mode is provided to test installed DIMM s on the main video controller PCB 4 NVRAM Reset Mode...

Страница 128: ... compact flash card Procedure Note It is possible to skip the test and proceed with the next test by pressing the Go key If any errors occur during the following procedures an error message appears on the LCD By pressing the Go key it is possible to proceed with the test 1 Turn on the power while holding down the and keys The following message appears LINE TEST 2 Press the Go key to implement the ...

Страница 129: ...splay of each sensor is changed to the corresponding character ABCDEFGHIJKLMNOP QRST Ex Toner cartridge K Open the cover Remove the toner cartridge Close the cover and wait for 20 seconds Open the cover Install the toner cartridge Close the cover and wait for 20 seconds D Corresponding sensor code A Front Cover B Top Cover C Rear Cover Transfer Unit D Toner Cartridge K E Toner Cartridge C F Toner ...

Страница 130: ...ors tests especially the OPC test require time to respond on the LCD panel Operate a sensor in one sense for at least 20 seconds before restoring it to the original condition for reliable operation of these tests As for HL 2700CN Lower Tray does not have the media sensor so the display will not be changed to Q The display will stay ...

Страница 131: ...Y 1 CHK START TRAY 1 A4 A4 size tray is installed TRAY 1 LETTER Letter size tray is installed TRAY 1 NO No tray is installed TRAY 1 SIZE ERR The paper size is other than A4 or Letter size 7 Press the Go key to implement the TRAY2 CHECK The paper size of the installed tray 2 is displayed Check that the paper size is correct TRAY 2 A4 TRAY 2 CHK START TRAY 2 A4 A4 size tray is installed TRAY 2 LETTE...

Страница 132: ...OK CARD R W START CARD R W OK The compact flash card works correctly CARD R W ERROR The compact flash card has a problem NO FLASH CARD The compact flash card is not installed 9 Press the Go key to exit the LINE TEST mode and reset the printer Now initializing RAM SIZE 64M WARMINGUP READY 10 Turn off the power When this message appears the printer may be turned off ...

Страница 133: ...urrent memory map i Press the and Set keys in this order while holding down the Go key ii The LCD will display HIDDEN PANEL iii Select the DRAM ADDRESS menu using the Back and keys iv Whenever the Set key is pressed the LCD will display the DRAM error address on Slot 1 6 If a DIMM DRAM has an error replace the DIMM corresponding to the above memory map information Note There may be a case where th...

Страница 134: ...e video controller to be reset to the factory settings Procedure 1 While holding down the Set key turn on the power 2 Hold down the Set key until WARMING UP is displayed on the LCD panel and the LEDs are all on momently 3 The printer is reset to the factory setting ...

Страница 135: ... understand the operation status of the printer engine during maintenance work 1 Service Mode After turning on the printer the printer goes into the Engine Service Mode This mode is a unique mode for the serviceman only and provides additional functions codes 31 through 37 to confirm the operational status during maintenance work and 39 FACTORY MODE to confirm and set the operational status of the...

Страница 136: ...BELT CG ALIGN TRANSFER ROLLER 17 MEDIA JAM CLOSE PANEL FRONT 18 CLOSE PANEL TOP CLOSE PANEL REAR CLOSE PANEL DUPLEX 19 SLEEP MODE 20 SERVICE CALL ALARM LED ON Service Mode 31 TEST PRINT ONLINE LED OFF 32 NEXT CARE INFO 33 TRAY TYPE 34 TOTAL PAGE 35 EACH IMAGE 36 CLEAR CARE 37 MEDIA MANAGE 38 EXTENDED MEDIA 39 FACTORY MODE 43 MARGIN ADJUST 44 LIFE PERIOD SET 45 NVRAM TUNE UP 46 NVRAM INITIAL 47 TOT...

Страница 137: ... to implement ordinary maintenance work Operation Procedures 1 Turn on the printer while holding down the and Back keys 2 Press the Job Cancel key The Alarm lamp blinks 3 Alarm lamp is lit off approximately 45 seconds after switching on the power supply and then the printer is ready to print as READY status Normal Mode See Table 5 2 for details of indications available in normal mode ...

Страница 138: ...ree size B5 B5 size 4 Code numbers of the consumables or periodical replacement parts will be indicated if they reach to their life or should be replaced now If no periodical replacement is required there will be no indication in the LCD For details of the periodical replacement parts see 36 CLEAR CARE in the next section 01 01 WAIT 1 2 4 Alarm LED is lit Engine is in the process of warming up For...

Страница 139: ... indicated as follows UPP Upper Tray LOW Lower Tray DPL Duplex Unit Inside Replenish the empty tray with paper 11 3 CHECK MEDIA for DUPLEX 11 CHK MEDIA 1 for DUPLEX 4 Engine stands by a CHECK MEDIA Duplex Alarm LED is lit 1 Media check is indicated with the following messages for each feeder UPP Upper Tray LOW Lower Tray DPL Duplex Unit Inside Changes the applicable media Changes the designation o...

Страница 140: ...lit 1 Paper feeder without the paper tray is indicated as follows UPP Upper Tray LOW Lower Tray Install the applicable media tray to the paper feeder indicated on the LCD 12 2 STACKER FULL 12 STACKER FULL SF Engine stands by as STACKER FULL status Alarm LED is lit Remove the paper on the stacker paper exit tray and then press key 13 REPLACE TONER 13 REPLACE 5 TONER 4 Display of 4 C YT Y Toner Cart...

Страница 141: ...lows NOPQR No PRREQ N signal is available PAPER No paper is available in the feeder while executing the print operation after receipt of the print command MEDIA While executing the print process after receipt of print command the media type of feeder is not consistent with the specified media type Misprint occurred while the Duplex printing This message can be cleared by pressing the Key 16 1 ALIG...

Страница 142: ...allation status of the belt cartridge This message will be automatically cleared by open close operation of the paper exit cover or front cover 16 4 ALIGN TRANSFER ROLLER 16 ALIGN TRANSFER ROLLER 4 Engine stands by as ALIGN TRANSFER ROLLER status Alarm LED is lit Transfer roller is not installed Reconfirm the installation status of transfer roller This message will be automatically cleared by open...

Страница 143: ...s CLOSE PANEL status Alarm LED is lit 8 One of following messages appears to indicate the kind of cover being open FRONT Front Cover TOP Paper Exit Cover REAR Rear Cover DPLEX Rear Cover Close the indicated cover and then above message is cleared 19 SLEEP MODE 19 SLEEP MODE 4 Engine is idling Alarm LED is lit This mode is cleared by sending a WAKE UP command EC24 from the LPC The printer is ready ...

Страница 144: ... power switch on by push on operation 2 Using the Back key key Set key and key select the mode necessary for the maintenance work from the configuration shown in Table 5 2 How to designate the necessary mode 1 Press the Back and keys so that service mode a b and c shows up one after another to be selected 2 After selecting the desired mode execute the selected mode by pressing the Set key 3 Press ...

Страница 145: ...d color ex Red color and then press Set key c d 4 After completion of the warming up process the desired pattern of selected color will be continuously printed d 5 Print operation is suspended by pressing key d e If it is desired to return to the previous screen message press key one more time e d 6 If it is desired to return to ONLINE mode press key f g SERVICE MODE TEST PRINT 31 GRID PRINT GRID ...

Страница 146: ...e is full 12 Paper exit tray is full 13 Pick up Roller PK 14 Pick up Roller PL When the replacement is suggested by the sensor s detection the necessary information can be obtained one after another 3 After selecting the desired information s code press Set key Then number of images or printouts corresponding to the selected code is displayed b c through f 4 Screen c through f can be cleared by pr...

Страница 147: ...ress Set key after selecting Screen a TRAY TYPE a b 2 Using Back and keys select the applicable code of desired tray A B C or D and then press the Set key 3 Return to SERVICE MODE by pressing the key b c A US B EC C JPN D FREE SIZE SERVICE MODE TRAY TYPE 33 TRAY TYPE TYPE A B C D E F SERVICE MODE TEST PRINT a b c ...

Страница 148: ...TOTAL PAGE mode a b 2 Select one type of page from among TOTAL PAGE DPL PAGE 3 6 digit number is displayed This number represents the total number of pages that have been printed out b 3 Press the key to clear the screen c d e SERVICE MODE TOTAL PAGE 34 TOTAL PAGE TOTAL DUPLEX a b c 34 TOTAL PAGE P 34 DUPLEX PAGE P SERVICE MODE TEST PRINT d e ...

Страница 149: ...lor and then press Set key b c 3 Number of created images per the selected color is displayed Ex Yellow c 4 Press the key to clear the screen c c d 5 Using Back and keys select other color and then press Set key to confirm the number of created images per each colors 6 Press the key to return to the Service mode d e SERVICE MODE EACH IMAGE 35 IMAGE OF Y M C K 35 IMAGE OF Y 000098P 35 IMAGE OF Y M ...

Страница 150: ...plicable CARE code and then press Set key b c 3 When implementing CLEAR CARE use the Back and keys to have the cursor meet YES and then press Set key c d No Periodic Maintenance Parts Code 7 Belt Cartridge BL 8 Fusing Unit FU 9 Drum Cleaner Transfer Roller OW 10 Transfer Belt TB 13 Paper Feeding Roller PK 14 Paper Feeding Roller LFU PL 4 Press the key to clear the CLEAR CARE mode d e SERVICE MODE ...

Страница 151: ...scription of Procedures LCD Message 1 Press Set key after selecting MEDIA MANAGE a b 2 Select the DEFIANCE and then press the Set key if OHP sensor signal should be ignored b In the normal operation the mode is preset to MANAGE 3 Return to SERVICE MODE by pressing the key b c SERVICE MODE MEDIA MANAGE 37 MEDIA MANAGE MANAGE DEFIANCE a b c SERVICE MODE TEST PRINT ...

Страница 152: ...g the Back and keys select the desired media and then press the Set key b c SERVICE MODE EXTEND MEDIA 38 EXTEND MEDIA PPC MTS TS a b Using the Back and keys select the desired detail type and then press the Set key c 38 EXTEND PPC NORMAL THIN c 38 EXTEND MTS NORMAL GLOSSY c 38 EXTEND LABEL TS1 TS2 c 4 Press the key to return to the Service Mode b c d SERVICE MODE TEST PRINT ...

Страница 153: ...confirmation of operations and the resetting functions necessary for the maintenance work Basic Configuration 39 FACTORY MODE 43 MARGIN ADJUST 44 LIFE PRIOD SET 45 NVRAM TUNE UP 46 NVRAM INITIAL 47 TOTAL PAGE SET 48 EACH IMAGE SET 49 NEXT LIFE SET 50 ID DATA SET 51 OPT TUNE UP ...

Страница 154: ...o both end left and right by 0 5mm pitch against the reference value 0 Using Back and keys select amount of adjustment by picking up a number displayed in Screen c or d In this instance the amount of adjustment selected will be displayed at the upper right corner of Screen c or d After confirming the desired amount of adjustment displayed press Set key to set the adjustment 4 Press the key to term...

Страница 155: ...ate or change the desired digit Use Set key to input values to the blinking digit Upon completing the input of values to be set use the Back and keys to move the cursor to SET displayed in the LCD and then press the Set key to register the set value 4 Press the key to complete the setting work h 5 Press the key one more time to return to FACTORY MODE h i 39 FACTORY MODE LIFE PERIOD SET 44 LIFE PER...

Страница 156: ...ine adjustment of the adjust value is required This mode consists of following 8 eight subordinate modes Configuration of NVRAM TUNE UP Factory Value at Ex Work 45 NVRAM TUNE UP 45 1 LP TUNE UP 0 45 2 THV TUNE UP PPC OHP 0 LABEL 0 45 3 DBV TUNE UP 0 45 4 CBV TUNE UP 0 45 5 FBV TUNE UP 0 ...

Страница 157: ... key b c 3 After selecting the color to be tuned up press Set key Ex Yellow c d 4 Tune Up value can be adjusted within 8 steps between the step 7 and 7 After selecting a given number press Set key d 5 Press the key to wrap up the tune up work for yellow color d e Repeat the step 3 through 5 whenever the tune up work is required to each color 6 Press the key to wrap up the tune up work e f 39 FACTO...

Страница 158: ...nt of Media on Thick Stock 1 1 3 speed TS2 Adjustment of Media on Thick Stock 2 1 4 speed DUPLEX PPC Adjustment for the second page of PPC duplex faces MTS Adjustment for the second page of the Label Middle Thick Stock duplex faces TS1 Adjustment for the second page of the Thick Stock 1 duplex faces TS2 Adjustment for the second page of the Thick Stock 2 duplex faces 4 Tune Up value can be adjuste...

Страница 159: ...y b c 3 After selecting the color to be tuned up press Set key Ex Magenta c d 4 Tune Up value can be adjusted within 8 steps between the step 7 and 7 After selecting a given number press Set key d e 5 Press the key to wrap up the tune up work for Magenta d e Repeat the step 3 through 5 for each color 6 Press the key to wrap up the DBV tune up work e f 39 FACTORY MODE NVM TUNE UP 45 NVM TUNE UP 1 2...

Страница 160: ...rocedures LCD Message 1 Press Set key after selecting NVM TUNE UP a b 2 After selecting CBV TUNE UP Code 5 press Set key b c 3 Tune Up value can be adjusted within 8 steps between the step 4 and 4 After selecting a given number press Set key c 4 Press the key to wrap up the tune up work for CBV c d 39 FACTORY MODE NVM TUNE UP 45 NVM TUNE UP 1 2 3 4 5 6 7 8 9 10 12 16 45 CBV TUNE UP 0 4 3 2 1 0 1 2...

Страница 161: ...of Procedures LCD Message 1 Press Set key after selecting NVM TUNE UP a b 2 After selecting FBV TUNE UP Code 6 press Set key b c 3 Tune Up value can be adjusted within 8 steps between the step 4 and 4 After selecting a given number press Set key c 4 Press the key to wrap up the tune up work for FBV c d 39 FACTORY MODE NVM TUNE UP 45 NVM TUNE UP 1 2 3 4 5 6 7 8 9 10 12 16 45 FBV TUNE UP 0 4 3 2 1 0...

Страница 162: ...o executing NVRAM INITIAL Description of Procedures LCD Message 1 Press Set key after selecting NVRAM INITIAL a b 2 Select YES if NVRAM should be executed If not select NO Press Set key so that RAM INITIAL will be executed All the data will be cleared b c 4 Following modes shall be executed to set the RAM data 43 MARGIN ADJUST 44 LIFE PERIOD SET 45 NVRAM TUNE UP 47 TOTAL PAGE SET 48 EACH IMAGE SET...

Страница 163: ...Printed Pages One duplex print is counted as 2 pages DUPLEX PAGE Number of Duplex Printed Sheet 3 Use Back and keys to designate or change the desired digit Use Set key to input values to the blinking digit Upon completing the input of values to be set use the Back and keys to move the cursor to SET displayed in the LCD and then press the Set key to register the set value c d 39 FACTORY MODE TOTAL...

Страница 164: ...AGE SET b c 3 Use Back and keys to designate or change the desired digit Use Set key to input values to the blinking digit Upon completing the input of values to be set use the Back and keys to move the cursor to SET displayed in the LCD and then press the Set key to register the set value c d 4 Press the key to wrap up the EACH IMAGE SET mode d e 39 FACTORY MODE EACH IMAGE SET 48 IMAGE OF Y M C K...

Страница 165: ...PL b c 3 Designate or alter the figure with Back and keys b c Use Set key to input the number to the blinking figure for example 120 000 After inputting the desired number 120 000 as example move the cursor to SET with Back and keys Then press Set key to complete the registration of desired number 120 000 as example c d e 4 Press key to complete the procedure of NEXT LIFE SET e f 39 FACTORY MODE N...

Страница 166: ...V 41 50 ID DATA SET This mode is not used 51 OPT TUNE UP For details of this mode refer to TMA CAL MODE in 7 1 Professional Menu in Appendix 6 HIDDEN FUNCTION MENU ...

Страница 167: ...e required Adjustment Method 1 Execute GRID PRINT in the SERVICE MODE 2 Measure the position A and B of top margin Leading edge A B 2 Default Value 4 0 1 5mm 3 Measure the position C and D of left margin Left edge C D 2 Default Value 3 0 1 5mm 4 If the specification value is not met implement the adjustment i Execute 43 MARGIN ADJUST in the FACTORY MODE 5 After above adjustment execute GRID PRINT ...

Страница 168: ...ocedures set out in Section 3 3 Service Mode in this chapter 2 Select RAM TUNE UP mode 3 Select the desired TUNE UP mode 4 Adjust the preset value to the appropriate value step 5 Implement the test print to confirm the print quality Subject TUNE UP Mode Mode Subject of Adjustment Purpose LP TUNE UP Adjustment of laser power Optical density THV TUNE UP Adjustment of transfer voltage Transfer effici...

Страница 169: ... setting execute 34 TOTAL PAGE to confirm that the desired number of printouts is now set 3 4 4 Setting of Number of Images for Each Color Number of printouts of each colors 4 colors is stored in the RAM Confirmation and setting of number of images per each color can be confirmed and reset by manipulating the key on the operator panel Purpose Number of images per each color shall be reset when cha...

Страница 170: ...PPC MTS TS1 TS2 0 45 DBV TUNE UP Adjustment Value 0 in ordinary case 45 CBV TUNE UP Adjustment Value 0 in ordinary case 45 FBV TUNE UP Adjustment Value 0 in ordinary case 47 TOTAL PAGE SET Total Print Count 47 DPL PAGE SET Print Count from Duplex 48 EACH IMAGE SET Formed Image Count of 4 Colors 49 NEXT LIFE Print Count for Maintenance Replacement Parts 2 Execute 46 NVRAM INITIAL in the FACTORY MOD...

Страница 171: ...CHAPTER VI PERIODIC MAINTENANCE ...

Страница 172: ...power supply off at first and unplug the power supply cord prior to commencing any work 3 Whenever having replaced any parts confirm the replaced parts in place prior to driving the printer 4 Read carefully and understand well any precaution or warning labels affixed to any parts 5 Unless otherwise specified precisely follow the reverse order of the disassembly procedures for the re assembly Do no...

Страница 173: ...For M4 4 Slotted Screwdriver 1 For slotted head screw 5 Slotted Screwdriver 2 For slotted head screw 6 Long Nose Pliers For general use 7 Pincette For general use 8 Precision Driver Set 1 6 For general use 9 Gap gauge Adjustment of Gap 10 Pliers for C Ring C Ring 11 Ruler 150mm For general use 12 Slide Caliper For general use 13 Digital Meter For general use 14 Handy Vacuum Cleaner for toner For c...

Страница 174: ...rtridge PU M 1 piece Test Print 3 Toner Cartridge PU C 1 piece Test Print 4 Toner Cartridge PU K 1 piece Test Print 5 OPC charge roller PU 1 piece Test Print 6 Recommended Paper A4 or Letter 5 sheets Test Print 7 Recommended Paper OHP 2 sheets Test Print 8 Cotton Cloth Unwoven fabric 10 15 pieces Cleaning 9 Grease 10 gram M G PS265 10 Polyethylene Bag 2 bags Disposal M G stands for Molybdenum Grea...

Страница 175: ... Toner Transportaion Parts Fig 6 1 CAUTION Prior to starting the maintenance work make sure to pull out the power supply cord plug from the outlet Check up the electric conductivity to be dead If alive there is the danger of electric shock Paper exit roller assy Cleaning roller PU Top cover PU OPC charge roller PU Toner cartridge PU Laser assy PU Dustproof glass Inside of printer Paper cassette PU...

Страница 176: ... PU 1 Remove the OPC charge roller PU 2 Clean the toner around the OPC charge roller and the cleaning blade 1 2 2 Defective print quality Periodic maintenance 3 A B or User 5 Dustproof Glass of Laser Assy 1 Remove toner cartridge PU 2 Remove the OPC charge roller PU 3 Using a dry cloth and applicator clean the stain of dust proof glass 1 2 3 Defective print quality Periodic maintenance 3 B or C 6 ...

Страница 177: ...nplug the power supply cord 2 Open the paper exit unit 3 Clean the stains of following parts with the cotton cloth Registration Roller Assy PU Transfer Roller Assy PU Transfer Roller Guide PU Fig 6 2 CAUTION When cleaning the registration roller or transfer roller do not apply any excessive force on the roller surface Such excessive force may get the roller deformed or damaged Since the deformed o...

Страница 178: ... the cotton cloth wipe off the stain around the OPC charge roller PU 3 Release the lock lever interlocking the OPC cartridge roller PU 4 Remove the OPC cartridge roller PU 5 Clean the installation part of the OPC cartridge roller PU 6 Clean the stain around the OPC cartridge roller PU Fig 6 3 CAUTION Do not apply any force onto the brush of the OPC cartridge roller PU Do not attempt to clean the b...

Страница 179: ...ure 1 Turn the power switch off and unplug the power cord 2 Remove all the toner cartridges PU 3 Remove the OPC charge roller PU 4 Clean the stain on the upper face of laser assy PU 5 Cleaning of dustproof glass surface Open the dustproof cover and clean the dustproof glass 6 Clean the spread toner around the waste toner transportation part Laser WARNING Label Inside of Printer Fig 6 5 Dustproof g...

Страница 180: ...oner 2 Cotton Cloth 2 to 3 pieces Cleaning Procedure 1 After push off the remote switch and turn off the main switch remove the power supply cord from the inlet 2 Open the top cover PU and paper exit unit 3 Open the front cover PU 4 Remove the toner cartridge PU 5 Remove the OPC charge roller PU 6 Absorb toner scattered on the bottom of printer interior with a vacuum cleaner 7 Clean the printer in...

Страница 181: ...ceperson or Customer 3 Cleaning Roller PU Every 120 000 pages Serviceperson only 4 Transfer Roller Assy PU Every 120 000 pages Serviceperson only 5 Paper Feed Roller Every 120 000 pages Serviceperson only 6 Transfer Unit PU Every 300 000 images Serviceperson only Note 1 No 1 and 2 can be replaced by the customer However it is recommended for the customer to call the service company to carry out th...

Страница 182: ...n transfer belt 2 4 120K prints Maintenance Code C OW 3 A or B 5 Paper Feed Roller Separate Pad To pick up paper one by one from paper cassette 2 5 120K prints No maintenance code 8 B or C 6 Transfer Unit PU To form toner image and transfer it onto paper 2 6 300K images No maintenance code 3 B or C Note 1 After completion of maintenance work clear the maintenance code displayed on the operator pan...

Страница 183: ...the control panel REPLACE OPC BELT CAUTION Do not directly touch the OPC belt surface with bare hands or gloves If OPC belt is exposed for more than 2 minutes under the light of 800 lux it may cause the defective image Work Procedure Sequence of Disassembling 1 Turn off the printer power switch 2 Open the top cover PU of the printer 3 To release the lock push the green lock lever BC on both sides ...

Страница 184: ...er PU into the printer push the lock lever BC that are on both sides of the OPC charge roller PU outwards 5 Close the top cover PU 6 Turn the printer power switch back on 7 Press any of the MENU buttons to take the printer off line 8 Press or until RESET MENU appears 9 Press Set to proceed to the next menu level and then press or until PARTS LIFE appears 10 Press Set and then press until OPC BELT ...

Страница 185: ...it Voltage specification to be confirmed WARNING Fuser unit and its peripheral parts are very hot Prior to starting the replacement work please confirm that the unit and parts are well cooled down after turning off the power switch Work Procedure Sequence of Disassembling 1 Turn off the printer power switch To avoid injury wait until the printer has cooled down sufficiently before you replace the ...

Страница 186: ...nit 5 Turn the printer power switch back on 6 Confirm the normal printing operation by test printing after the warming up process 7 Press any of the MENU buttons Set or Back to take the printer off line 8 Press or until RESET MENU appears 9 Press Set to proceed to the next menu level and then press or until PARTS LIFE appears 10 Press Set and then press until FUSER UNIT appears 11 Press Set The pr...

Страница 187: ...rpose of Replacement To prevent the transfer efficiency from declining due to deterioration of the transfer roller assy PU Necessary Tools and Replacement Materials 1 Two or three pieces of cotton cloth for cleaning 2 Transfer roller assy PU one unit Work Procedures Sequence of Disassembling 1 Turn off the printer power switch 2 Open the paper exit unit 3 Release the lock lever TR on the right and...

Страница 188: ...Push the lock lever TR down to lock the transfer roller assy PU into place 3 Close the paper exit unit 4 Turn the printer power switch back on Fig 6 14 5 After the replacement of the transfer roller assy press the GO and buttons together to reset parts life With PARTS RESET LIFE menu you can initialize each of parts life This is not open to other than the service personnel in principal You may let...

Страница 189: ... strongly recommended Purpose of Replacement To prevent the cleaning efficiency from declining due to deterioration of the cleaning roller PU CAUTION When assembling the cleaning roller PU firstly connect the bearing and the bias pole Prior to starting above assembling reconfirm this connection to have been done properly Necessary Tools and Replacement Materials 1 Two or three pieces of cotton clo...

Страница 190: ...e slightly upwards rotating slightly around the bearings in the housing after you have installed it 3 Put the cleaning roller cover PU back in and then close the top cover PU 4 Turn the printer power switch back on Fig 6 17 5 After the replacement of the cleaning roller press the GO and buttons together to reset parts life With PARTS RESET LIFE menu you can reset parts life This is not open to oth...

Страница 191: ...pears in LCD of the control panel REPLACE 120K KIT NOTE At the same time replacement of the paper feed roller the cleaning roller the separator pad and the transfer unit is strongly recommended Work Procedures Sequence of Disassembling 1 Turn off the printer power switch 2 Release the three hooks and remove the lower duplex cover from the paper exit unit 3 Remove the setscrew BT3x8 2 pieces of the...

Страница 192: ...etscrew BT3x8 2 pieces from the paper guide C PU 8 Remove the paper guide C PU 9 Sliding the paper feed roller along the shaft remove it from the shaft 10 Pull out the separator pad from the frame Fig 6 20 Paper guide B PU Paper exit unit Support band Setscrew Paper feed roller Paper exit unit Paper guide C PU Separator pad BT3x8 ...

Страница 193: ...de C PU with the setscrew BT3x8 2 pieces Fig 6 21 4 Secure the support band with the setscrew 5 Install the paper guide B PU into the printer 6 Close the paper exit unit Fig 6 22 Paper feed roller Paper exit unit Paper guide C PU Separator pad BT3x8 Paper guide B PU Paper exit unit Support band Setscrew ...

Страница 194: ... This is not open to other than the service personnel in principal You may let users know as necessary In details please refer to Appendix 6 2 RESET PARTS LIFE Cautions 1 This work is one of periodic replacement jobs but cannot be the customer This should be implemented upon request of customer or at periodic maintenance 2 After the replacement confirm the feeding of media such as plain paper OHP ...

Страница 195: ...eplacement of the paper feed roller the cleaning roller the separator pad and the transfer unit is strongly recommended Work Procedures Sequence of Disassembling 1 Turn off the printer power switch 2 Open the paper exit unit 3 Remove the knob screw 2 pieces of the transfer unit PU from rear 4 Holding the band provided at the top side of the transfer unit PU pull out the transfer unit PU from the i...

Страница 196: ... LIFE menu you can reset parts life This is not open to other than the service personnel in principal You may let users know as necessary In details please refer to Appendix 6 2 RESET PARTS LIFE Cautions 1 This work is one of periodic replacement jobs but cannot be the customer This should be implemented upon request of customer or at periodic maintenance 2 After the replacement confirm the improv...

Страница 197: ...CHAPTER VII DISASSEMBLY ...

Страница 198: ...oner cartridge in this maintenance However strictly refrain from dumping them together with the inflammable or throwing them into the fire 6 Remove the grounding when replacing or removing HV power supply unit After completing the replacement work confirm the grounding wire to be put back and connected to the earth mark 7 While replacing the maintenance parts check the connection of the harness an...

Страница 199: ...having completed the appropriate training program on the product safety 2 Test Devices Insulation dielectric strength tester 500VA Output 1500VAC or Insulation resistance tester 500VDC 100 M ohm 3 Method of Measurement and Criteria of Judgment Connection Circuit Test Condition and Judgment Criteria 1 2 Test Device Terminal at Line Side Power Supply Cable Printer Grounding Terminal Plug Earth Pole ...

Страница 200: ...VII 3 Table 7 1 Table of Applicable Screws ...

Страница 201: ...E 2 1 Cover Front View Fig 7 1 Rear View Fig 7 2 Top Cover PU 4 5 Paper Exit Unit 4 46 Top Cover Assy PU 4 5 Front Cover PU 4 33 Right Side Cover PU 4 6 Operator Panel PU Left Side Cover PU 4 8 Rear Cover Fuser Unit 4 3 ...

Страница 202: ...Units Fig 7 4 Main Motor PU 4 18 Erase Lamp PU 4 14 I O Board PU 4 10 Engine Controller Board PU 4 35 LV Power Supply PU 4 37 HV Power Supply PU 4 36 Developer Motor PU 4 23 Laser Assy PU 4 32 Exit Fan PU 4 58 Power Supply Fan PU 4 11 Panel Board PU ...

Страница 203: ... TR Cam Clutch 4 20 Fuser Clutch PU 4 19 Cleaning Roller Clutch PU 4 17 Toner Sensor PU TPD 4 30 Paper Sensor PFUL 4 53 Paper Sensor PT2 4 56 Belt Sensor 4 42 OHP Sensor PU 4 62 Paper Sensor PEU 4 62 Paper Sensor PU PT1 4 62 Maker Sensor 4 15 Paper Size Sensor PU 4 43 Toner DensitySensor PU 4 16 Toner Sensor PU TTR 4 40 Waste Toner Sensor PU Toner Present Sensor PU 4 41 ...

Страница 204: ...4 1 OPC CHARGE ROLLER PU 4 2 PAPER TRAY 4 3 FUSER UNIT 4 6 RIGHT SIDE COVER PU 4 4 CLEANING ROLLER COVER PU CLEANING ROLLER PU 4 9 INTERLOCK SWITCH PU FRONT 4 17 CLEANING ROLLER CLUTCH PU 4 19 FUSER CLUTCH PU 4 20 TR CAM CLUTCH 4 21 REGISTRATION CLUTCH PU 4 22 PAPER FEED CLUTCH PU 4 18 MAIN MOTOR PU 4 27 OPC DRIVE GEAR ASSY PU 4 28 MAIN DRIVE GEAR ASSY PU 4 29 WASTE TONER FEEDER PU C 4 5 TOP COVER...

Страница 205: ...8 A 4 12 WASTE TONER AUGER PU 4 13 WASTE TONER AGITATOR PU 4 14 ERASE LAMP PU 4 15 MARKER SENSOR 4 16 TONER DENSITY SENSOR PU 4 6 RIGHT SIDE COVER PU 4 24 WASTE TONER HOLDER ASSY PU 4 34 RIGHT TRAY GUIDE PU ...

Страница 206: ...PER GUIDE C PU PAPER SENSOR PT1 PEU OHP SENSOR PU TRAY EMPTY ACTUATOR PU 4 64 PAPER FEED ROLLER SEPARATOR PAD 4 52 EXIT GUIDE ASSY PU EXIT DRIVE ASSY PU EXIT IDLE ROLLER ASSY PU 4 47 TRANSFER ROLLER ASSY PU 4 53 PAPER SENSOR PFUL 4 54 EXIT ROLLER ASSY PU PAPER EXIT ACTUATOR PU 4 55 FUSER EXIT ACTUATOR PU 4 56 PAPER SENSOR PT2 4 57 DISCHARGING BRUSH PU 4 58 EXIT FAN PU EXIT FAN DUCT PU 4 59 REAR CO...

Страница 207: ...T SOLENOID PU DESLY DESLM DESLC DESLK TONER RETRACT CAM PU 4 40 TONER SENSOR PU TTR 4 41 TONER PRESENT SENSOR PU 4 43 LEFT TRAY GUIDE PU PAPER SIZE SENSOR PU ROOM TEMP THERMISTOR PU 4 10 I O BOARD COVER PU I O BOARD PU 4 11 POWER SUPPLY FAN PU INTERLOCK SWITCH PU TOP PAPER EXIT POWER SUPPLY FAN DUCT PU 4 14 TRANSFER UNIT PU ERASE LAMP PU 4 46 PAPER EXIT UNIT 4 29 COVER C WASTE TONER FEEDER PU 4 32...

Страница 208: ...ove the AC cord 3 Open the top cover PU 4 To release the lock push the green lock lever BC on both sides inwards 5 Remove the OPC charge roller PU Fig 7 7 4 2 Paper Tray 1 Remove the paper tray NOTE Adjustment is required when the Paper Tray is changed Please refer to Section5 in this chapter Lock lever BC Lock lever BC Top cover PU OPC charge roller PU Top cover PU ...

Страница 209: ...s different subject to the voltage specification and therefore the wrong installation may cause the H2 error Description of Applicable Work Replacement of Fuser Lamp Installation of Heater and Internal Wiring Pin Assignment 120V 240V 1 THS1 THS2 940W Fuser Connector Discharge Terminal Fuser Lamp Connector Pin No To be connected to the fuser metal frame Side Panel Insulation Resistance Tester Therm...

Страница 210: ... from the harness 11 Remove the bottom fuser cover FU from the fuser roller assy FU 12 Remove the setscrew H SM3x6 with washer 1 piece of the fuser lamp terminal from the terminal 13 Remove the setscrew I SM3x6 with washer 2 pieces of the lamp holder and then remove the lamp holder 14 Pull out the fuser lamp from the fuser roller HT Note Since the voltage of heater lamp is subject to the destinati...

Страница 211: ...resistance needs to be done CAUTION The fuser unit and its peripheral parts are very hot approximately 100 C Prior to starting the replacement work confirm that the fuser unit and its peripheral parts are well cooled down A BT3x6 A BT3x6 Lock knob KIT FU Top fuser cover FU B Screw B Screw Lock knob KIT FU C BT3x8 C BT3x8 D Fuser shoulder screw G SM3x6 with washer D ST3x6 Front fuser cover FU Botto...

Страница 212: ...x6 with washer I SM3x6 with washer Fuser lamp Fuser roller HT E SM3x6 with washer K FU shoulder screw L BT3x6 J ST3x6 with washer L BT3x12 Fuser connector FU Thermistor assy FU Bottom fuser cover FU Fuser lamp Lamp holder ...

Страница 213: ... Roller Cover PU Cleaning Roller PU 1 Open the top cover PU 2 Release the two hooks to remove the cleaning roller cover PU 3 Remove the cleaning roller PU Fig 7 10 Cleaning roller cover PU Cleaning roller PU Top cover PU ...

Страница 214: ...rator panel PU 4 Open the front cover PU and paper exit unit 5 Remove the setscrew BT4x10 2 pieces from the top cover assy PU 6 Remove the top cover assy PU from the printer 7 Release the hinge of the top cover PU to remove the top cover PU from the top cover assy PU Fig 7 11 Top cover PU Paper exit unit Front cover PU Top cover assy PU BT4x10 Operator panel cover PU BT4x10 Operator panel PU Harne...

Страница 215: ... PU 2 Remove the setscrew BT4x10 2 pieces of right side cover PU 3 Remove the right side cover PU from the printer Fig 7 12 4 7 Main PCB 1 Remove the two setscrews 2 Pull out the main PCB Fig 7 13 Right side cover PU BT4x10 Waste toner pack PU Main PCB Setscrews ...

Страница 216: ...he left side cover PU from the printer Fig 7 14 4 9 Interlock Switch PU Front 1 Disconnect the connector connecting to the interlock switch PU front 2 Remove the interlock switch PU front from the switch base DF The switch is supported by the hooks and shaft Fig 7 15 Left side cover PU Duplex connector cover Interlock switch PU front BT4x10 Connector Shaft Hooks ...

Страница 217: ... PU 5 Disconnect all the connectors connecting to the I O board PU 6 Remove the setscrew ST3x6 6 pieces of the I O board PU 7 Remove the I O board PU CAUTION Handle the IOD board carefully in the replacement work not to cause the destruction due to the electrostatic While installing the shield cover do not get the harness caught by the cover Fig 7 16 ST3x6 ST3x6 ST3x6 I O board cover PU I O board ...

Страница 218: ...y fan duct PU 10 Remove the interlock switch PU paper exit from the power supply fan duct PU CAUTION Do not have the fan duct assy step on the harness Interlock Switch is the important part in terms of the safety The replacement work of the interlock switch should be done by the skilled personnel having the sound knowledge on the product safety This interlock switch PU is the part of unique specif...

Страница 219: ...cause the waste toner fall on the floor If the installation part is stained clean it off with the vacuum cleaner that is for the toner only or with cloth Fig 7 18 4 13 Waste Toner Agitator PU 1 Remove the coupling gear from the inside of the frame 2 Pull out the waste toner agitator PU Fig 7 19 BT3x8 Waste toner auger PU Frame Frame Waste toner agitator PU Coupling gear BT3x8 ...

Страница 220: ...es fixing the erase lamp PU to the sensor base TB 4 Disconnect the harness connector connecting to the erase lamp PU 5 Remove the erase lamp PU from the sensor base TB CAUTION Do not scratch the belt surface Do not touch the belt surface with bare hands When replacing the erase ramp board do not touch the transfer belt surface with your bare hands Fig 7 20 NOTE Adjustment is required when the Tran...

Страница 221: ...rom the frame 3 Remove the maker sensor from the sensor base TB Fig 7 21 4 16 Toner Density Sensor PU 1 Remove the setscrew BT3x8 2 pieces of the toner density sensor PU from the sensor base TB 2 Remove the toner density sensor PU from the sensor base TB Fig 7 22 BT4x8 Sensor base TB Maker sensor Sensor base TB Toner density sensor PU BT3x8 Toner density sensor PU Connector Connector ...

Страница 222: ...es connecting to the harness duct 2 Release the two hooks of the harness duct and remove the harness duct 3 Remove all harnesses from the harness duct Fig 7 24 Frame Cleaning roller clutch PU TS3x8 Main motor PU Harness duct Fuser clutch PU Cleaning roller clutch PU Registration clutch PU TR cam clutch Paper feed clutch PU Paper exit unit Developer motor PU Connector Waste toner sensor PU Develope...

Страница 223: ...assy PU CAUTION Do not damage the output shaft otherwise it may cause the degradation of print quality Fig 7 25 4 19 Fuser Clutch PU 1 Remove the washer fixing the fuser clutch PU to the shaft 2 Remove the fuser clutch PU from the shaft Fig 7 26 Main motor PU BT3x12 Shaft Fuser clutch PU Washer OPC drive gear assy PU ...

Страница 224: ...ensure to secure each of them onto the correct position since they are exactly alike If they cannot be identified check their parts numbers 4 21 Registration Clutch PU 1 Remove the washer fixing the registration clutch PU to the shaft 2 Remove the registration clutch PU from the shaft Fig 7 28 Washer TR cam clutch Shaft Shaft Washer Registration clutch PU ...

Страница 225: ...Fig 7 29 4 23 Developer Motor PU 1 Remove the setscrew ST3x6 4 pieces fixing the developer motor PU 2 Remove the developer motor PU from the developer drive assy PU Note Do not damage the output shaft otherwise it may cause the degradation of print quality Fig 7 30 Shaft Washer Paper feed clutch PU Developer motor PU ST3x6 Developer drive assy PU ...

Страница 226: ...y PU and therefore is replaced by a waste toner holder assy PU as the module 5 Remove the base from the frame Fig 7 31 4 25 Developer Clutch PU DCLY DCLM DCLC DCLK 1 Remove the washer fixing the developer clutch PU to the shaft 2 Remove the developer clutch PU from the shaft Fig 7 32 BT3x8 BT3x8 Waste toner holder assy PU Waste toner sensor PU Waste toner feeder pipe Plate Shaft Developer clutch P...

Страница 227: ...ove the setscrew BT3x8 4 pieces of the developer drive assy PU 4 Remove the developer drive assy PU from the frame Fig 7 33 4 27 OPC Drive Gear Assy PU 1 Remove the setscrew BT4x10 4 pieces of the OPC drive gear assy PU 2 Remove the OPC drive gear assy PU from the frame Fig 7 34 Frame Developer drive assy PU BT3x8 BT3x8 Developer gear PU Frame OPC drive gear assy PU BT4x10 Developer gear PU Washer...

Страница 228: ... exit unit 4 Remove the setscrew BT4x10 3 pieces and ST3x6 2 pieces of the side base stay R to remove the side base stay 5 Remove the setscrew BT4x10 4 pieces fixing the main drive gear assy PU 6 Pull out the main drive gear assy PU from the frame Fig 7 35 BT4x10 Main drive gear assy PU Frame BT4x10 ST3x6 BT4x10 ST3x6 Side base stay R ST4x6 ...

Страница 229: ... In this instance as the waste toner may leak from the toner feeder part in the pipe prepare the waste toner tray to prevent the waste toner from falling on the floor Clean the inside of the printer if any stain with the vacuum cleaner that is for the toner only It would be better to apply a grounding wire to the vacuum cleaner to prevent static charge Vacuum the toner remained in the waste toner ...

Страница 230: ... supply PU installed properly After above confirmation confirm the safety through the withstand voltage test or with the insulation tester CAUTION Replacement of the toner sensor PU TPD TTR requires the substantial disassembly and also reassem bly As the inappropriate assembly procedures and the wrong use of screws affect the product safety and the product performance the appropriate assembly proc...

Страница 231: ...ide PU from the frame Fig 7 38 4 32 Laser Assy PU Laser Unit Fan Assy PU 1 Disconnect the connector connecting to the laser unit fan assy PU 2 Remove the setscrew BT4x8 1 piece of the laser unit fan assy PU and remove the laser unit fan assy PU Fig 7 39 BT4x8 Right toner guide PU BT4x8 Laser unit fan assy PU Frame Connector ...

Страница 232: ...scanned in the laser assy PU Do not attempt to disassemble the laser assy PU because it is dangerous The laser assy PU for maintenance is replaceable by the unit No internal adjustment is required for the laser assy PU Test drive and confirmation of the drive must be done only after installing the cover to prevent the laser beam from being transmitted out of the printer Fig 7 40 TS3x12 Laser assy ...

Страница 233: ... support pin left and right connecting to the frame with the front door unit closed and then disconnect the connection 5 Remove the inner front cover PU from the frame Fig 7 41 4 34 Right Tray Guide PU 1 Remove the setscrew BT3x8 2pieces of the right tray guide PU 2 Remove the right tray guide PU from the frame Fig 7 42 BT3x8 BT3x8 Inner front cover PU Front cover PU Fixing band Support pin Suppor...

Страница 234: ...onnect all the connectors connecting to the engine controller board PU 2 Remove the setscrew ST3x6 4 pieces of the engine controller board PU 3 Remove the engine controller board PU from the frame Fig 7 43 ST3x6 Engine controller board PU Frame ...

Страница 235: ...at cable from the HV power supply PU 7 Remove the setscrew ST3x6 4 pieces and BT3x8 7 pieces of the HV power supply PU Since 2 kinds of the screw are used confirm the screw before using 8 Remove the HV power supply PU from the frame CAUTION This is the replacement work of the unit that generates high voltage Therefore this work should be done by the qualified personnel having the sound knowledge o...

Страница 236: ...LV power supply PU 6 Remove the setscrew with washer 7 pieces of the LV power supply PU 7 Remove the LV power supply from the frame CAUTION This is the replacement work of the important parts pertaining to the product safety This work must be done by the skillful personnel having the sound knowledge on the product safety and in the facility where the safety can be ensured This work requires the in...

Страница 237: ...e the shield base LV from the frame 6 Disconnect the connector from the fuser connector PU 7 Remove the setscrew FST3x10 2 pieces of the fuser connector PU 8 Remove the fuser connector PU from the shield base HV CAUTION This the replacement work of the unit generating high voltage and therefore must be done by the skill personnel having the sound knowledge on the product safety Fig 7 46 Fuser conn...

Страница 238: ... of the developer retract solenoid requires the substantial disassembly and also reassembly As the inappropriate assembly procedures and the wrong use of screws affect the product safety and the product performance the appropriate assembly procedures and the caution items must be respected This work requires the insulation withstand voltage test and the measurement of the insulation resistance Fig...

Страница 239: ...supply PU installed properly After above confirmation confirm the safety through the withstand voltage test or with the insulation tester CAUTION Replacement of the toner sensor PU TPD TTR requires the substantial disassembly and also reassem bly As the inappropriate assembly procedures and the wrong use of screws affect the product safety and the product performance the appropriate assembly proce...

Страница 240: ...ng the sensor to the front side and then tighten the setscrew to fix the sensor Fig 7 49 4 42 Belt Sensor 1 Remove the setscrew ST3x6 1 piece of the sensor base PB 2 Remove the sensor base PB from the IOD base 3 Disconnect the connector connecting to the belt sensor 4 Remove the belt sensor from the sensor base PB Fig 7 50 Frame BT3x6 Toner present sensor PU BT3x6 Sensor base PB ST3x6 Belt sensor ...

Страница 241: ... installed to the indicated position Isn t any harness caught Is the appropriate screw used After above confirmation confirm the safety through the withstand voltage test or with the insulation tester WARNING Replacement of the paper size sensor PU PSU requires the substantial disassembly and also reassembly As the inappropriate assembly procedures and the wrong use of screws affect the product sa...

Страница 242: ...ex Cover Lower Duplex Cover 1 Close the paper exit unit 2 Release the three hooks on the upper duplex cover to remove the upper duplex cover from the paper exit unit 3 Release the three hooks on the lower duplex cover to remove the lower duplex cover from the paper exit unit Fig 7 53 Frame Left toner guide PU Lower duplex cover BT3x6 BT4x8 Upper duplex cover Paper exit unit Hooks Hooks ...

Страница 243: ...e hinge shaft can be removed from the right side base assy 5 Slide the paper exit unit to the right side to release the hinge shaft from the frame 6 Pull the paper exit unit to the backside and then remove it CAUTION When pulling the rear cover Assy PU make it slowly by releasing the tension of the rear unit support Be careful about the abrupt return of the rear unit support due to the reaction of...

Страница 244: ... Transfer Base Assy PU 1 Remove the setscrew ST3x6 3 pieces and BT3x8 3 pieces of the transfer base assy PU 2 Remove the transfer base assy PU Fig 7 56 Paper exit unit Transfer roller assy PU Paper exit unit Transfer base assy PU ST3x6 ST3x6 BT3x8 Transfer base assy PU ST3x6 ST3x6 BT3x8 ...

Страница 245: ...ller assy PU from the transfer unit base Fig 7 57 NOTE Adjustments is required when the Registration Roller is changed Please refer to Section5 in this chapter 4 50 Registration Actuator PU 1 Remove the registration actuator PU that is installed to the transfer unit base Fig 7 58 Transfer unit base Registration roller assy PU Coupling gear Washer Bearing Transfer unit base Registration actuator PU...

Страница 246: ...ssy PU Exit Drive Assy PU Exit Idle Roller Assy PU 1 Remove the connector cover from the exit guide assy PU 2 Disconnect the two connectors connecting to the exit guide assy PU 3 Remove the exit guide assy PU by removing the setscrew ST3x6 2 pieces and FST3x10 2 pieces Fig 7 60 Rear cover Arm ring ST3x6 ST3x6 ST3x6 Transfer roller guide PU Rear cover Connector cover FST3x10 FST3x10 Exit guide assy...

Страница 247: ...t guide assy PU 7 Remove the setscrew B BT3x12 1 piece and collar of the rear cover latch arm 8 Remove the rear cover latch arm from the exit guide assy PU 9 Remove the setscrew ST3x8 2 pieces of the exit idle roller assy PU 10 Remove the exit idle roller assy PU from the exit guide assy PU Fig 7 61 Spring Exit drive assy PU ST3x8 ST3x8 Exit guide assy PU Rear cover latch arm Metal BT3x12 B BT3x12...

Страница 248: ...tor PU 3 Remove the roller shaft sagging This roller shaft sagging 4 Remove the paper exit actuator PU 5 Remove the washer a and bearing a from the exit roller assy PU 6 Remove the washer b and bearing b from the exit roller assy PU 7 Remove the exit roller assy PU from the exit guide assy PU Fig 7 63 Paper sensor PFUL Exit idle roller assy PU Exit guide assy PU Coupling gear Washer a Paper exit a...

Страница 249: ...ctuator PU to the arrow direction 3 Remove the fuser exit actuator PU from the exit guide assy PU Fig 7 64 4 56 Paper Sensor PT2 1 Remove the paper sensor PT2 from the exit guide assy PU Fig 7 65 Exit guide assy PU Paper sensor PT2 Washer Fuser exit actuator PU Exit guide assy PU ...

Страница 250: ...Remove the setscrew BT3x8 2 pieces of the shaft holder 3 Remove the shaft holder from the exit guide assy PU 4 Remove the discharging brush PU from the exit guide assy PU Fig 7 66 Hinge cover BT3X8 BT3x8 Discharging brush PU Shaft holder Exit guide assy PU Hooks ...

Страница 251: ...it latch L 5 Remove the setscrew BT3x8 and ST3x6 1 piece each then remove the fan support 6 Remove the setscrew BT3x8 1 piece and ST3x6 2 piece of the exit fan assy PU 7 Remove the paper exit fan assy PU 8 Remove the exit fan PU from the exit fan duct PU Note When installing the fan make the label side face outwards Fig 7 67 Rear cover Exit fan assy PU Fan support Exit latch L Exit fan PU Exit fan...

Страница 252: ...ece of the exit latch R to remove the exit latch R 2 Remove the setscrew BT3x8 1 pieces and ST3x6 1 piece of the rear cover latch assy PU 3 Remove the rear cover latch assy PU from the rear cover Fig 7 68 Rear cover Rear cover latch assy PU Exit latch R BT3x8 BT3x8 ST3x6 ...

Страница 253: ...rew BT3x8 2 pieces of the paper guide A PU 2 Remove the paper guide A PU Fig 7 69 4 61 Paper Guide B PU 1 Remove the setscrew BT3x8 2 pieces of the paper guide B PU 2 Remove the paper guide B PU Fig 7 70 BT3x8 Paper guide A PU BT3x8 Paper guide B PU ...

Страница 254: ... PU from the frame 5 Remove the paper sensor PT1 from the paper guide C PU 6 Remove the setscrew BT3x8 2 pieces fixing the OHP sensor PU 7 Remove the OHP sensor PU Board from the paper guide C PU 8 Remove the tray empty actuator PU from the paper guide C PU 9 Remove the harness from the paper sensor PEU 10 Remove the paper sensor PEU from the paper guide C PU Fig 7 71 BT3x8 Paper sensor PT1 Paper ...

Страница 255: ... PU 2 Remove the paper guide D PU from the frame Fig 7 72 4 64 Paper Feed Roller Separator Pad 1 Sliding the paper feed roller along the shaft remove it from the shaft 2 Pull out the separator pad from the frame Fig 7 73 Frame Paper guide D PU BT3x8 Separator pad Paper feed roller Frame ...

Страница 256: ... Execute GRID PRINT in the Service Mode 2 Measure the position A and B of top margin Leading edge A B 2 Default Value 4 0 1 5mm 3 Measure the position C and D of top margin Leading edge C D 2 Default Value 3 0 1 5mm 4 If the specification value is not met implement the adjustment ex Execute 43 MARGIN ADJUST in the Factory mode 5 After above adjustment execute GRID PRINT and confirm the margin Note...

Страница 257: ...CHAPTER VIII TROUBLESHOOTING ...

Страница 258: ...TLINE OF TROUBLESHOOTING Printer in trouble Reset the power switch Trouble still repeats Is power supply operating normally Check power cord and cable Operator Call Paper Transport Error Printer Error Imaging Failure Normally Operating NO YES ...

Страница 259: ... in the following cases 1 Consumables need to be replenished 2 Waste toner bottle is full 3 Paper jam occurred 4 Periodic maintenance is required 5 Maintenance work is incomplete 6 Paper Output Tray is full of outputted papers Usually the above cases are not regarded as a breakdown but treated in accordance with Table 8 1 ...

Страница 260: ...A Misprinting occurred 15 16 11 NO MEDIA UPP LOW No paper in the upper tray No paper in the lower tray CHK MEDIA TYPE UPP LF1 Inconsistency of media NO TRAY UPP LOW No upper paper tray No lower paper tray REPLACE TONER Y M C K Toner Y M C K empty 12 13 Change the media or designation CHK MEDIA for DUPLEX No duplex printing is possible for the designated media Confirm the paper feed and exit and ch...

Страница 261: ... automatically returns to the SLEEP MODE operating conditions with W ake Up Printer under idling condition sleep Command transmitted from the upper controller Confirm that the transfer unit is securely closed Confirm THAT the covers or rear cover assy are securely closed CLOSE PANEL FRONT TOP REAR Front cover is open Rear cover assy is open Top Cover is open CLOSE PANEL DPL Duplex Unit s cover is ...

Страница 262: ... Normally the operator call can be cleared by the implementation of applicable countermeasures listed in Table 8 1 If not cleared the printer engine may be in trouble Check and implement appropriate countermeasures in accordance with the following procedures ...

Страница 263: ...ensor disconnected Is the connection between Paper Size Sensor PU and I O board PU is disconnected Is Error Code 12 cleared Is PSU properly installed damaged Replace Paper Size Sensor PU PSU Replace I O board PU Is Error Code 12 cleared Complete Replace the Paper Tray PU No No No No No No Yes Replace the Paper Size Sensor PU Yes Connect the connector Yes Yes Yes Yes ...

Страница 264: ...ntified on the panel Confirm Toner Sensor PU Is Error Code 13 cleared When the identified Toner Cartridge is not mounted is the message 16 ALIGN TONER CG indicated on the panel Check the connection of Harness Connector and replace Toner Sensor PU Complete Replace the identified Toner Cartridge PU No No No Yes Yes Yes ...

Страница 265: ... PU installed properly Confirm Waste Toner Sensor PU Is Error Code 14 cleared Is the Waste Toner Sensor PU damaged Harness Connector of Sensor Switch is disconnected Replace I O board PU Complete Install the waste toner bottle PU properly No No No Replace the Waste Toner Holder Assy PU Connect the connector Yes Yes No Yes Yes ...

Страница 266: ...tion of toner sensor PU Install the toner cartridge PU No No Replace the existing toner cartridge with brand new toner cartridge PU Connect the connector No Yes Yes Is the connector of toner sensor TTR side failed Is the message 16 ALIGN TONER CG Y M C K cleared Replace the Toner Sensor PU TTP TPD Yes No No Yes Replace the I O board PU Complete Is the message 16 ALIGN TONER CG Y M C K cleared Yes ...

Страница 267: ...plicable fuser unit FU installed properly Is the message 16 ALIGN FU UNIT cleared Confirm the installation of fuser unit FU Replace the engine controller board PU MCTL Replace the damaged fuser connector FU No Complete Yes Yes Is the connector damaged No No No Yes Is the message 16 ALIGN FU UNIT cleared Yes ...

Страница 268: ...ared Confirm that the belt cartridge PU is installed properly Check the main motor PU system Clean the smeared mark No Is the connector ECN12 of IOD connected with the connector of main motor Yes No Is the OPC belt s mark smeared with toner No No Yes Is the main motor PU rotated Replace the main motor PU Complete Yes Yes No Is the message 16 ALIGN BELT CG cleared Yes Connect the connector No Yes ...

Страница 269: ...the applicable transfer roller assy PU installed properly Is the message 16 ALIGN TR ROLLER cleared Confirm the installation of transfer roller assy PU Replace the HV power supply PU Repair the deformed electrode No Complete Yes Yes Is the TR bias electrode deformed No No No Yes Is the message 16 ALIGN TR ROLLER cleared Yes ...

Страница 270: ...lled Is the cassette base damaged or deformed Replace Paper Feeding Roller Separator Pad Confirm Registration Actuator PU Use a recommended paper No No No Reset the tray properly No Replace the tray PU Yes Confirm Registration Actuator PU No Yes Yes Does Registration Actuator PU operate smoothly Is Error Code 17 cleared Yes Yes Complete PT1 Sensor Registration Sensor ...

Страница 271: ... properly closed Is Error Code 17 cleared Is Registration Actuator PU undone Replace the Registration Actuator PU Check the Harness of Registration Actuator PU and Replace the I O board PU Remove the paper debris No Open and close the rear cover assy No Reset the Registration Actuator PU No No No Yes Yes Yes Is Error Code 17 cleared Confirm the installation of rear cover assy PU Complete Yes Yes ...

Страница 272: ... above units Does Fuser Exit Actuator PU operate smoothly Replace PT2 Sensor Lever Remove the paper debris No Check and Reset the Fuser Exit Actuator PU No No No Yes Yes Is Error Code 17 cleared Confirm the Paper Exit Guide Check the Harness of Paper Sensor PU and Replace I O board PU Is Error Code 17 cleared Complete Yes Yes PT2 Sensor Fuser Exit Sensor ...

Страница 273: ...witch PU DSW1 DSW2 Open and close the Cover No Replace the Top Cover Assy PU No Is Front Cover Lock Lever deformed Replace the Front Cover Assy PU No Remedy the Interlock to be tight No Connect the Harness properly Yes Yes Yes Is the Interlock loose Is the Harness disconnected Replace the Interlock Switch PU Yes No No Yes Is Error Code 18 cleared Complete Yes DSW1 Front Cover Interlock Switch DSW2...

Страница 274: ...the Interlock DSW3 Open and close the Rear Cover Assy PU No No Is Rear Cover Assy Lock deformed Replace the Rear Cover Assy PU No Remedy the Interlock to be tight No Connect the Harness properly Yes Yes Yes Is the Interlock loose Is the Harness disconnected Replace the Interlock Switch PU Yes No No Yes Is Error Code 18 cleared Complete Yes DSW3 Rear Cover Interlock Switch ...

Страница 275: ...e Assy PU Fig 8 1 3 1 Feed Jam Table 8 3 1 Replace the damaged paper feed roller Remove the paper being caught Set the end plate to meet the paper size Set the paper in the proper place Replace the existing papers with new papers Problem Item P Check Item Result Corrective Action Use the recommended paper Print Paper Paper Cassette PU Pick Up Roller PU 1 2 3 4 5 6 NO YES NO NO YES NO Is the print ...

Страница 276: ... lock lever Fix the transfer roller with the lock lever Remove the paper inside 1 2 3 4 Transportation Part Fuser Unit Yes No No Yes Open the rear cover assy PU for check Is there any paper inside the unit Is the transfer roller firmly locked by the lock lever Is the fuser unit properly locked Is there any paper caught between the rollers ...

Страница 277: ...ops If errors or failures would repeat even after pressing the key confirm the error code and take the clearance method described in section 4 2 in this chapter Error occurs Confirm the error message Press the key Error occurs again Call the maintenance company for service Since this is a temporary error you may use the printer without corrective action NO YES ...

Страница 278: ...T S9 ERROR S09 SERVICE CALL Coprocessor UNUSAB Unusable S10 ERROR S10 SERVICE CALL Arithmetic Overflow S11 ERROR S11 SERVICE CALL Undefined Interrupt S12 ERROR S12 SERVICE CALL Software 1 Interrupt S13 ERROR S13 SERVICE CALL Software 2 Interrupt S21 ERROR S21 SERVICE CALL Unknown Operator Call E41 ERROR E41 SERVICE CALL Engine Communication Error H37 ERROR H37 SERVICE CALL PCI Register Error H38 E...

Страница 279: ...ror D3 ERROR ED3 SERVICE CALL Cyan Developer Clutch Error D4 ERROR ED4 SERVICE CALL Black Developer Clutch Error D5 ERROR ED5 SERVICE CALL Yellow Retract Solenoid Error D6 ERROR ED6 SERVICE CALL Magenta Retract Solenoid Error D7 ERROR ED7 SERVICE CALL Cyan Retract Solenoid Error D8 ERROR ED8 SERVICE CALL Black Retract Solenoid Error E1 ERROR EE1 SERVICE CALL Developer Motor Error E2 ERROR EE2 SERV...

Страница 280: ... ERROR EH4 SERVICE CALL Fuser Temperature High Error HA ERROR EHA SERVICE CALL Fuser ACOFF Error L1 ERROR EL1 SERVICE CALL Beam Detector Error L2 ERROR EL2 SERVICE CALL Scanner Motor Error LL ERROR ELL SERVICE CALL Laser Power Error N1 ERROR EN1 SERVICE CALL Duplex Connection Error 1 N2 ERROR EN2 SERVICE CALL Duplex Connection Error 2 N3 ERROR EN3 SERVICE CALL HVU Connection Error N4 ERROR EN4 SER...

Страница 281: ...e Method S1 S6 S7 S8 S9 S10 S11 S12 S13 S21 E41 H37 H38 H61 Turn off the printer Wait a few seconds then turn it on again If still remains replace the main PCB 1 Is it possible to print the test page If not replace the main PCB S2 S3 S4 S5 H63 H66 H67 H68 2 Does this problem appear when printing specific data or printing under a specific environment If yes inform the Brother office of used specifi...

Страница 282: ...r Clearance Procedure 3 Replace the failed MCTL with a new MCTL Clearance Method C4 Hard Error of MCTL Control Circuit 1 Failure of MCTL 1 Turn on and off the power switch 2 Replace the failed MCTL with a new MCTL Does the error repeat despite of implementing On Off of Power Switch Continue to drive the engine NO Replace the failed MCTL with a new MCTL C4 YES YES YES Continue to drive the engine C...

Страница 283: ...Power Feeding Failure 2 Main Motor PU Failure 3 Main Motor PU Input Circuit Failure 1 Implement the same clearance procedures employed for E2 error Note MM stands for OPC Belt Drive Main Motor PU Clearance Method C7 Implement the same clearance procedures employed for E2 error ...

Страница 284: ...rly YES NO NO YES Replace current MCTL with a new MCTL Complete Does the voltage jump between DCN3 6 and DCN13 1 Is D1 Error cleared Replace IOD with a new IOD Replace the clutch DCLY with a new clutch Is D1 Error cleared YES YES NO YES YES Complete Re check NO NO Connect the harness NO 24V Is the connection proper between DCN3 of IOD and I2CN of MCTL MCTL 12CN 26 DCL Y ON P IOD DCN3 DCN10 DCLY 24...

Страница 285: ...Error cleared Replace IOD with a new IOD Replace the clutch DCLM with a new clutch Is D2 Error cleared YES YES NO YES YES Complete Re check NO Connect the connector properly NO Does the voltage drop between DCN10 20 and DCN13 1 Does the voltage jump between DCN3 5 and DCN13 1 NO YES 24V Is the connection proper between DCN3 of IOD and I2CN of MCTL MCTL 12CN 27 DCL M ON P IOD DCN3 DCN10 DCLM 24V 1 ...

Страница 286: ...MCTL Complete Is D3 Error cleared Replace IOD with a new IOD Replace the clutch DCLC with a new clutch Is D3 Error cleared YES YES NO YES YES Complete Re check NO NO Connect the harness Does the voltage drop between DCN10 18 and DCN13 1 Does the voltage jump between DCN13 4 and DCN13 1 NO 24V Is the connection proper between DCN3 of IOD and I2CN of MCTL MCTL 12CN 28 DCL K ON P IOD DCN3 DCN10 DCLC ...

Страница 287: ...lete Is D4 Error cleared Replace IOD with a new IOD Replace the clutch DCLK with a new clutch Is D4 Error cleared YES YES NO YES YES Complete Re check NO NO Connect the harness Does the voltage drop between DCN10 24 and DCN13 1 Does the voltage jump between DCN3 7 and DCN13 1 NO YES 24V Is the connection proper between DCN3 of IOD and I2CN of MCTL MCTL 12CN 25 DCL K ON P IOD DCN3 DCN10 DCLK 24V 1 ...

Страница 288: ... Error cleared Replace IOD with a new IOD Replace the toner cartridge or toner retoract solenoid aasy with a new unit Is D5 Error cleared YES YES NO YES YES Complete Re check NO NO Connect the harness NO Does the voltage drop between DCN4 1 or DCN4 3 and DCN13 1 Does the voltage jump between DCN3 8 and DCN13 1 NO 24V Is the connection proper between DCN3 of IOD and I2CN of MCTL MCTL 12CN 24 PSL KY...

Страница 289: ...6 Error cleared Replace IOD with a new IOD Is D6 Error cleared YES YES NO YES YES Complete Re check NO NO Connect the harness Does the voltage drop between DCN4 5 or DCN4 7 and DCN13 Does the voltage jump between DCN3 9 and DCN13 1 NO NO 24V Is the connection proper between DCN3 of IOD and I2CN of MCTL MCTL 12CN 23 PSL MC ON P IOD DCN3 DCN4 DSOL M 24V 1 DS L M ON N 6 5 DCN13 PGND SGND 24V 1 9 2 4 ...

Страница 290: ... the IOD Is E1 error cleared Replace the MCTL Is E1 error cleared Job is complete Replace the toner cartridge Is the noise cleared Replace developer gear unit and motor Connect the connectors properly Is E1 error cleared Replace the developer motor PU Job is complete Job is complete Job is complete YES YES YES YES YES YES YES NO NO NO NO NO NO NO A A MCTL 7 5 DMCLK DMON N IOD 25 27 DCN3 DCN13 DCN1...

Страница 291: ... Error 1 MMRDY N and MMCLK singnal from the main motor is not inputted to IOD Connection failure of harness 2 MMRDY N and MMCLK singnal is not outputted due to the breakdown of main motorÕ s control circuit Main motor failure 3 IOD break down YES MCTL 12CN 21 20 19 18 MMCLK MMON N IOD DCN3 DCN13 DCN12 1 2 3 4 5 6 7 8 9 10 11 12 13 14 2 4 6 8 1 3 5 7 10 12 9 11 MM1 MM MMREV N MMENC 11 12 13 14 MMON...

Страница 292: ... deformed Replace the transfer unit PU Connect them properly Is E3 error cleared Replace the Marker sensor PU Replace the MCTL Job is complete YES NO YES YES YES NO NO NO Does a transfer belt rotate lightly and is the marker on the belt stained YES NO Is E3 error cleared Is a rotation torque excessive Replace the IOD Is E3 error cleared YES NO NO NO NO YES YES Is DCN1 of IOD properly connected wit...

Страница 293: ...em properly Is E4 error cleared Replace the toner sensor PU Replace the MCTL Job is complete YES NO YES NO Is DCN15 of IOD properly connected with a connector of the toner sensor YES YES Replace the IOD Toner Empty P W B TPD LED side YES NO NO NO MCTL 1ICN 21 IOD DCN1 19 LEDON N 1 2 3 4 5 6 DCN15 LEDON2 P TLESCHK SGND 19 1 1 PGND 7 8 9 10 LEDON P side TLES K P TLES Y P TLES M P TLES C P TLESCN P S...

Страница 294: ...CN10 8 of IOD and DCN13 1 to be a trailing edge Is a single voltage between DCN3 20 and DCN13 1 to be a rising edge Is E5 error cleared Job is complete Is E5 error cleared Connect them properly Replace the MCTL Job is complete YES YES YES NO YES NO NO YES Replace the transfer clutch PU Replace the IOD YES NO NO Transfer Clutch PU MCTL 12CN 12 TRSLON P IOD TRCM 20 24V 1 PGND DCN3 DCN13 7 8 DCN10 TR...

Страница 295: ...N10 4 and DCN13 1 of IOD to be a trailing edge Is a single voltage between ECN13 19 and DCN13 1 of IOD to be a rising edge Is E6 error cleared Job is complete Is E6 error cleared Connect them properly Replace the IOD Replace the MCTL Job is complete YES YES NO YES NO NO YES Replace the Cleaning Roller Solenoid PU YES YES NO Drum Cleaner Solenoid PU MCTL I2CN 13 FBCLON P IOD FBSOL 19 PGND DCN3 2 4 ...

Страница 296: ... DCN13 1 of IOD to be a trailing edge Is a single voltage between DCN3 22 and DCN13 1 of IOD to be a rising edge Is E8 error cleared Job is complete Is E8 error cleared Connect them properly Replace the MCTL Job is complete YES NO YES NO YES NO NO Replace the cleaner clutch PU FUCL Replace the IOD YES YES NO Fuser Clutch PU MCTL I2CN 10 FUCLON P IOD DCN3 DCN10 FUCL 22 24V 1 FUCLON N 5 6 DCN13 2 4 ...

Страница 297: ...13 9 and 10 of IOD Is E9 error cleared Job is complete Replace the belt cartridge Is E9 error cleared Clean the belt Connect them properly Is E9 error cleared Replace the OPC Marker Sensor PU P B S Replace the MCTL Job is complete YES YES YES YES NO NO NO NO NO Is a belt sensor stained NO NO YES Replace the IOD Install the printer to be leveled out YES YES Marker Sensor PU MCTL I1CN 17 IOD1 DCN1 D...

Страница 298: ...DCN15 12 and DCN13 9 to be a trailing edge Is a single voltage between DCN1 24 and 13 9 of IOD to be a rising edge Is EL error cleared Job is complete Is EL error cleared Connect them properly Replace the MCTL Job is complete YES NO YES NO YES NO NO Replace the Erase Lamp PU Replace the IOD YES YES NO Relay Connector Erase Lamp PU MCTL I1CN 16 ELON P IOD DCN1 DCN15 EL 24V 1 ELON N PGND 11 12 1 2 2...

Страница 299: ...een DCN20 1 and 2 to be a trailing edge Is the voltage between DCN1 21 and 13 1 to be a trailing edge Is F0 error cleared Job is complete Is F0 error cleared Connect them properly Replace the MCTL Job is complete YES NO YES NO YES NO NO Replace the Power Supply Fan PU Replace the IOD YES YES NO Power Supply Fan PU MCTL I1CN 19 CTFANON P IOD DCN1 DCN20 CTL FAN 21 CTFANON P PGND CTFANERR PGND 24V 1 ...

Страница 300: ...between DCN8 1 and 2 to be a rising edge Is the voltage between DCN3 21 and 13 1 to be a rising edge Is F3 error cleared Job is complete Is F3 error cleared Connect them properly Replace the MCTL Job is complete YES NO NO NO YES NO NO Replace the laser fan PU Replace the IOD YES YES YES Laser Fan PU MCTL I2CN 11 LDFANON P IOD DCN3 DCN8 LD FAN 21 LDFANON P PGND LDFANERR PGND 24V 1 DCN13 1 2 3 2 4 6...

Страница 301: ...etween DCN7 10 and 11 to be a rising edge Is the voltage between DCN1 20 and 13 1 to be a rising edge Is F4 error cleared Job is complete Is F4 error cleared Connect them properly Replace the MCTL Job is complete YES NO NO NO YES NO NO Replace the Exit Fan PU Replace the IOD YES YES NO Exit Fan PU MCTL I1CN 20 HTFANON P IOD DCN1 DCN7 HTFAN 20 HTFANON P PGND HTFANERR DCN13 10 11 12 24V 1 PGND 13 1 ...

Страница 302: ...ntract failure or short of CHV socket part Is F5 error cleared Job is complete Re install the OPC charger roller PU Replace the IOD or MCTL Job is complete OPC Charger Roller PU YES NO NO YES NO Have the electric pole properly contact Clean the socket part YES YES NO Replace the HV Power Supply PU HVU Is F5 error cleared Is F5 error cleared Job is complete YES YES NO NO MCTL HVU BRV HVCN 24V 1 BRV...

Страница 303: ...t found in the ACN5 connector of LVPS Is F6 error cleared Job is complete Connect the connector properly YES Replace the IOD YES NO YES LV Power Supply PU IOD P W B DCN21 Is there any damage or lift found in the DCN21 connector of IOD YES Replace the LV Power Supply PU NO NO ACN5 TESTO1 TESTO2 TESTI1 TESTI2 MCTL Engine Controller Board PU IOD I O Board PU LVPS LV Power Supply PU ...

Страница 304: ...U Are the connectors properly connected between the fuser unit FU and FUCN of MCTL Replace the fuser unit FU Is H0 error cleared Job is complete Is H0 error cleared Re install the fuser unit FU Job is complete YES NO YES NO Replace the MCTL NO Replace the Fuser Connector Connect them properly NO YES Fuser Unit FU 1 2 3 4 5 6 7 8 FUCN MCTL TH1 TH2 FUTEMP SGND LVPS HP HP 2 27 7 Fuser Connector MCTL ...

Страница 305: ...at that was caused by the low input voltage Confirm the connection of Harness Connector Replace with a new Fuser Unit FU Replace with a new LV Power Supply PU LVPS Replace with a new MCTL Confirm the input voltage to connect the printer Connect theprinter with the ratedvoltage source Code Description H1 Abnormal temperature continued for more than the specified time H2 Warming up was not completed...

Страница 306: ... 49 1 2 3 4 5 6 7 8 FUCN MCTL TH1 TH2 FUTEMP SGND LV Power Supply PU HP HP2 9 10 LVCN 9 10 ACN5 1 2 3 4 5 6 7 8 VR Fu P W B Thermistor TH THC1 THC2 Fuser Heater Fuser Connector 2 2 1 4 4 27 7 Fuser Unit FU ...

Страница 307: ...ector PDCN properly connected Are the connector LCN and LCN of MCTL properly connected Replace the Laser Assy PU Is L1 error cleared Job is complete Is L1 error cleared Connect the connector properly YES YES NO NO NO Replace the MCTL Laser Assy PU YES MCTL LCN1 SGND BDT LDU PDCN LCN3 SM PD LCN 5V 1R 20 5 MCTL Engine Controller Board PU ...

Страница 308: ...lace the Laser Assy PU Is L2 error cleared Job is complete Is L2 error cleared Connect the connector properly YES YES NO NO NO Replace the MCTL Laser Assy PU YES MCTL LCN1 LDU LCN2 LCN3 SM PD LCN 20 5 Error Code Description L2 Scanner Motor Error LL Laser Power Error MCTL Engine Controller Board PU ...

Страница 309: ...number 10 DUPCHECK of both connectors connected properly Check the internal wiring of the Duplex unit Replace the Duplex unit NO Connect the connectors properly NO 11 10 DUPCN CHK 11 10 Error Code Description N1 Connection failure of the connector to the Duplex unit pop out or cut N2 Connection failure of the connector to the Duplex unit pop out or cut When powered on the self diagnosis is made in...

Страница 310: ...HVCN connector of MCTL Job is complete Connect the connectors properly HV Power Supply PU BCN1 MCTL NO NO YES Are the pin number 1 HVUCNCHK N of both connectors connected properly Is N3 error cleared NO Insert the pin number 1 properly NO 1 HVUCNCHK N 1 YES YES Is there any damage or lift found in the BCN1 connector of HVU Replace the HV Power Supply PU Replace the MCTL YES NO YES HVCN 3 MCTL Engi...

Страница 311: ...is complete Connect the connectors properly Lower Feeder Unit LFU IOD NO NO Is there any damage found in the connector of LFU side Is N5 error cleared Replace the LFU unit NO 16 LFCN CHK YES YES Is there any damage or lift found in the IOD DCN14 connector Replace the IOD YES NO YES DCN14 Replace the MCTL MCTL I1CN 16 DCN1 18 1 MCTL Engine Controller Board PU IOD I O Board PU ...

Страница 312: ...ler Board DU CN100 CN101 Is the harness and connector connected properly Replace the Controller Board DU Completed No Is the code P1 P2 cleared No Yes Connect the harness and connector properly Yes Error Code Part Name P1 P2 Controller Board DU No MCTL 24V 2 PGND 24V 2 PGND Controller Board DU 4 3 2 1 Duplex Connector 4 3 2 1 P1 P2 P3 P4 DPCN LVPS ACN4 Engine Controller Board PU CN100 Cable CN101 ...

Страница 313: ...ween the SOL1 and controller Board DU Is the code P3 cleared Replace the Drive Solenoid DU Replace the controller board DU Is the code P3 cleared Yes Yes Error Code Part Name P3 Drive Solenoid DU SOL1 No Completed Is the code P3 cleared No Yes Yes No No No SOL1 1 VAAST 2 SOL ON 24V CN103 Controller Board DU Drive Solenoid DU ...

Страница 314: ... P4 error code cleared Yes Error Code Part Name P4 Drive Motor DU No Job is completed Replace the STM1 Is the resistance approximately 15 respectively between STM2 connector CN140 1 and 2 and 3 and 4 Replace the STM2 Yes No No Yes CN102 Controller Board DU A A B B A A B B CN110 CN111 STM1 STM2 Drive Mortro DU Drive Mortro DU 1 Y 1 Y 2 W 3 OR 4 BK 6 BR 2 W 3 OR 4 BK 6 BR ...

Страница 315: ...e SOL1 and controller Board DU Is the code P5 cleared Replace the Diverter Solenoid DU Replace the controller board DU Is the code P5 cleared Yes Yes Error Code Part Name P5 Diverter Solenoid DU SOL1 No Completed Is the code P5 cleared No Yes Yes No No No SOL1 1 VAAST 2 SOL ON 24V CN103 Controller Board DU Diverter Solenoid DU CN103 ...

Страница 316: ...VIII 59 5 IMAGE FAILURE 1 2 3 4 5 6 7 8 9 10 11 12 13 14 ...

Страница 317: ...VIII 60 15 a 15 b 16 17 18 19 20 21 22 23 24 25 Fig 8 2 ...

Страница 318: ...he developer roller s bias pole 3 Life or failure of the belt cartridge PU 4 Failure of the HV power supply unit PU HVU Belt Cartridge PU Toner Cartridge PU K Y M C OPC Belt Countermeasures 1 Replace the toner cartridge Pu See Section 3 1 of Chapter III 2 Confirm if the developer bias pole is deformed or not 3 Replace the belt cartridge Pu See Section 2 1 of Chapter VI 4 Replace the HV power suppl...

Страница 319: ...hown in the print sample 2 of Fig 8 2 Main Causes 1 Too small toner mass amount and charging amount in the development process 2 The OPC belt is deformed as waving Countermeasures 1 Replace the toner cartridge PU with a brand new toner cartridge PU 2 Replace the belt cartridge PU with a brand new belt cartridge PU ...

Страница 320: ... of OPC belt running speed due to above reasons 2 Failure of the belt cartridge PU 3 Failure of the main drive gear ASSY PU 4 Failure of the developer drive ASSY PU Main Motor PU Developer Drive Assy PU Countermeasures 1 Replace the OPC drive gear ASSY PU with a new OPC drive gear ASSY PU 2 Replace the belt cartridge PU with a new belt cartridge PU 3 Replace the main drive gear ASSY PU with a new ...

Страница 321: ... one side 4 The rear cover ASSY is not properly closed 5 The OPC belt is off the truck and gets deformed 6 Retract failure of the toner cartridge PU 1 Fig 8 3 Countermeasures 1 Confirm the printer installation table to be flat and appropriate 2 Shake the toner cartridge horizontally for several times to remedy the concentration 3 Replace the toner cartridge PU with a new cartridge PU 4 Close the r...

Страница 322: ...ndoned paper 2 The rear cover ASSY PU is not locked properly 3 Fuser roller is deformed or reaches to the end of life 4 One side of fuser unit FU is lifted when installed Countermeasures 1 Use a recommended paper or fresh paper from a paper bag 2 Push the rear cover ASSY PU and ensure the locking at the both sides left and right 3 Confirm that the fuser unit FU is installed properly and fixed with...

Страница 323: ...nt sample 6 of Fig 8 2 Main Causes 1 Foreign particles adhere to Developer Roller of specific color in question 2 Developer Roller s surface is damaged Fig 8 4 Countermeasures 1 Implement the test print 2 Confirm the toner cartridge PU of specific color in question that has caused the white line 3 Remove the foreign particles adhering to the developer roller ...

Страница 324: ...icles 2 Hairy foreign particles adhere to the laser beam opening of Laser ASSY PU 3 There are foreign particles mixed in the toner cartridge PU Countermeasures 1 Clean the dustproof glass 1 1 Remove the belt cartridge PU and toner cartridge PU 1 2 Open the developer cover 1 3 Clean the dustproof glass 2 Clean the laser beam opening of laser ASSY PU 3 If White Line II failure is attributed to toner...

Страница 325: ...n Causes 1 Failure of the toner cartridge PU blade 2 Stain of the OPC charger roller PU 3 Stain of the OPC belt 4 Stain of the transfer belt Fig 8 7 Countermeasures 1 Replace the toner cartridge PU with a new toner cartridge PU 2 Replace the belt cartridge PU with a new belt cartridge PU 3 Replace the transfer unit PU with a new transfer unit PU ...

Страница 326: ...the OPC belt 4 Foreign particles adhere to the perimeter parts of the OPC belt and the transfer belt and consequently contact the toner image formed on the belt Top Cover PU Toner Cartridge PU Laser Assy PU Paper Tray PU Belt Cartridge PU OPC Belt Cartridge PU OPC Belt Countermeasures 1 Replace the toner cartridge PU with a new toner cartridge PU 2 Replace the belt cartridge PU with a new belt car...

Страница 327: ...rmed on the belt surface Fuser Unit FU Transfer Roller Assy PU Paper Feed Roller PU Registration Roller Assy PU Cleaning Brush Cleaning Roller Waste Toner Feeder Transfer UNit Claener PU Drum Residual Toner Transfer Belt Transfer Unit Cleaner PU Transfer Belt Transfer Unit PU Countermeasures 1 Clean the stain of the belt cartridge PU 2 Clean the stain of the transfer belt 3 Remove the transfer uni...

Страница 328: ...on as shown in print sample 11 of Fig 8 2 Main Causes 1 Shock or vibration is applied to the printer 2 Failure of the laser ASSY PU Vibration from the rotation of scanner motor Countermeasures 1 Do not apply shock or vibration to the printer body 2 Replace the laser ASSY PU with a new laser ASSY PU ...

Страница 329: ...the shock which occurs when the seam of OPC belt passes over the cleaning blade 2 The OPC belt and the transfer belt fail to maintain the regular and proper rotation due to the impact caused during the retract of the toner cartridge Belt Seam Belt Cartridge PU Fig 8 8 Countermeasures 1 Replace the belt cartridge PU with a new belt cartridge PU 2 Replace the toner cartridge PU with a new toner cart...

Страница 330: ... 13 of Fig 8 2 Main Causes 1 Deformation of the transfer roller 2 Contact failure of the transfer roller s bias terminal 3 Failure of the transfer roller clutch PU Countermeasures 1 Replace the transfer roller ASSY PU with a new transfer roller ASSY PU 2 Check up the transfer roller s bias terminal 3 Check up the transfer roller clutch and cam structure ...

Страница 331: ...the developer roller drops on the OPC belt Countermeasures 1 Check up the cleaning brush and the waste toner auger PU 1 1 Clean the perimeter of the transfer unit cleaner installation location 1 2 Check if the seal is deformed or damaged If any deformation or damage replace the transfer unit cleaner with a new transfer unit cleaner PU 1 3 Check if the waste toner is stuck in the printer engine If ...

Страница 332: ...Roller PU Transfer Belt Rear Cover Assy PU Countermeasures 1 Remove the belt cartridge PU 1 1 Lightly wipe off the foreign particles adhering to OPC belt using cotton cloth 1 2 Replace the damaged belt cartridge with a new cartridge 2 Open the rear cover ASSY PU and check the transfer belt surface 2 1 With the cotton cloth lightly wipe off the foreign particles adhering to the transfer belt 2 2 Re...

Страница 333: ...ansfer Roller Assy PU Transfer Unit PU Countermeasures 1 Confirm where the mixed color image is caused 1 1 If it is on the OPC belt the cause is the retract error of the toner cartridge 1 2 If it is on the transfer belt the cause is the retract error of the transfer belt or cleaning roller 2 Replace the toner cartridge retract gear PU or the retract solenoid PU with a new one 3 Replace the transfe...

Страница 334: ...he transfer belt fails to maintain the regular and proper rotation due to the impact caused when the transfer roller contacts the transfer belt Belt Cartridge PU Paper Exit Roller Assy PU Transfer Unit Cleaner PU Toner Cartridge PU K Y M C Transfer Roller Assy PU Transfer Unit PU OPC Belt Countermeasures 1 Confirm that the transfer roller ASSY PU is properly installed 2 Confirm that the transfer u...

Страница 335: ... THV output of DC high voltage unit is not normal 4 Failure of the toner cartridge PU 5 Deformation of the print paper Countermeasures 1 Confirm if the rear cover ASSY PU is firmly locked or not 2 Replace the papers with new papers 3 Replace the toner cartridge PU with a new toner cartridge PU 4 Confirm if the transfer roller ASSY PU is properly installed or not 5 Replace the HV power supply unit ...

Страница 336: ...n Causes 1 Cleaning failure due to the lifted cleaning brush of the transfer unit cleaner 2 Contact failure of the belt cleaner s bias terminal 3 Failure of HV power supply unit PU Countermeasures 1 Check if the transfer unit cleaner PU is properly installed or not 2 Replace the HV power supply unit PU with a new HV power supply unit PU ...

Страница 337: ...ple 20 of Fig 8 2 Main Causes 1 The fuser roller is deteriorated 2 The fusing temperature is not properly controlled 3 The mode setting of the paper is not correct Countermeasures 1 Replace the fuser unit FU with a new fuser unit FU 2 Confirm the mode setting ordinary paper or thick stock of the paper ...

Страница 338: ...e inner jam occurred 1 2 Fusing off set error occurred Fusing temperature is not correct 1 3 The fuser roller and the back up roller are deteriorated 2 The transfer roller is stained Countermeasures 1 Clean off the stain of the fuser roller by carrying out the blank printing for couple of pages 2 Replace the fuser unit FU with a new fuser unit FU 3 Replace the transfer roller ASSY PU with a new tr...

Страница 339: ...the HV power supply unit PU Belt Cartridge PU Toner Cartridge PU Transfer Unit PU Transfer Roller Assy PU Transfer Unit Cleaner PU Lasr Assy PU Paper Tray PU Paper Exit Roller Assy PU Paper Feed Roller PU Registration Roller Assy PU Countermeasures 1 Check any paper or other foreign particles to lie in the laser beam path 2 Replace the toner cartridge PU with a new toner cartridge PU 3 Check the r...

Страница 340: ...s open The shipping pieces are not removed 2 Wrong selection of print media label or envelope etc at the Host driver side 3 Recommended paper is not being used 4 Failure of the fusing unit Countermeasures 1 Return the fuser tension release lever Remove the shipping pieces 2 Adjust the mode of Host side to suit the print media in use 3 Use the recommended paper 4 Replace the failed fusing unit with...

Страница 341: ...roperly installed 6 The rear cover ASSY PU is deformed 7 The rear cover ASSY PU is not locked sufficiently 8 The dustproof glass of laser ASSY PU is stained Belt Cartridge PU Rear Cover Assy PU Transfer Belt Toner Cartridge PU Transfer Unit PU Laser Unit Assy PU Countermeasures 1 Replace the toner cartridge PU 2 Check the toner retract clutch PU 3 Replace the belt cartridge PU 4 Confirm the proper...

Страница 342: ...ction as shown in print sample 25 of Fig 8 2 Main Causes 1 There is a crack at the end of the OPC belt Charge brush OPC Belt Crack at the end Countermeasures 1 Replace the OPC belt with the one supplied as an accessory which has a barcode label on the bottom of its packaging Barcode label ...

Страница 343: ...B February F June K October C March G July L November D April H August M December ID for production month of other parts than the printer 1 January 5 May 9 September 2 February 6 June X October 3 March 7 July Y November 4 April 8 August Z December 1 Printer U 6 0 1 5 7 L 1 S 1 1 1 1 0 1 Location MODEL NO MONTH YEAR FACTORY NO SERIAL NO Right side of the printer 120V ...

Страница 344: ...e on the label 2 3 OPC Belt Cartridge Until the 30th of August 2004 C 1 2 X X X X From the 31st of August 2004 H T C 1 2 X X X X Location MONTH Cartridge REVISION NO FACTORY NO Color DATE Cartridge YEAR Belt MONTH Belt MONTH Cartridge REVISION NO FACTORY NO DATE Cartridge YEAR Belt MONTH Belt Label 1 Label 2 Color Revision No Factory Use DATE Cartridge MONTH Cartridge MONTH Toner YEAR Toner DATE C...

Страница 345: ...A 3 4 Fusing Unit XXXV 7 1 2 3 A Location 5 Scanner Unit 7 1 2 3 A Location REV A Z DATE VOLTAGE 100V 120V 240V YEAR DATE MONTH YEAR REV A Z MONTH ...

Страница 346: ...A 4 6 Transfer Unit X X X X X X 7 1 2 3 Location DATE MONTH SERIAL NO YEAR ...

Страница 347: ...eveloper Roller φ 18 mm 56 52 mm 3 Transfer Roller φ 20 mm 62 80 mm 4 Paper Pick up Roller φ 40 mm 125 60 mm 5 Transfer Drum φ 121 mm 379 94 mm 6 Back up Roller φ 32 mm 100 48 mm 7 Fusing Roller φ 40 mm 125 60 mm 8 Drum cleaner 2 φ 25 mm 78 50 mm 9 Cleaning Roller φ 18 mm 56 52 mm 10 Registration Roller φ 13 5 mm 42 39 mm 11 Paper Exit Roller φ 16 mm 50 24 mm ...

Страница 348: ...ore unpacking 1 After unpacking 2 Toner cartridge all colors 3 years 1 year OPC belt cartridge 3 years 1 year Fuser cleaner N A N A Note 1 It means that the consumable life is 1 year if it is stored for 2 years 2 Even though shelf life is one year after unpacking the consumable life will be getting less than one year if it is stored more than 2 years before unpacking ...

Страница 349: ... Above figure varies depending on pages job Refer to the list below Pages per job 1 page 2 page 3 page 4 page 5 page 6 page 7 page 8 page 9 page 24 000 30 000 35 000 39 000 43 000 46 000 49 000 51 000 53 000 Pages per job 10 page 11 page 12 page 13 page 14 page 15 page 54 000 56 000 57 000 58 000 59 000 60 000 5 Cleaning Roller Life 12 000 pages Condition Above figure varies depending on coverage ...

Страница 350: ...n 32 Modified by the addtional life deleted figure 40 000 39 990 2 10 pages 1 No change 2 10 pages 1 10 pages 0 Figure from Total page 34 Total page counter life 10 20 3 No change 20 3 Clear care 36 40 000 40 020 3 Add 20 pages 1 Print 10 pages by 5 coverage 2 Print 10 pages by 50 coverage Add figure of Total pages 34 ...

Страница 351: ...il spill in the printer and severe damage to the printer 1 Turn off the printer power switch and then unplug the printer Disconnect the interface cable from the printer 2 Open the front cover of the printer 3 Pull out the all toner cartridges from the printer 4 Install the orange protective cover to the each toner cartridge as shown in the illustration Protective cover ...

Страница 352: ...t the lower right hand side of the printer Be careful not to spill the toner 7 Take the cap off the new waste toner pack and put the cap on the used waste toner pack 8 Put the new waste toner pack into the waste toner pack holder 9 Close the front cover 10 Repack the printer into the carton LOCK ...

Страница 353: ...lecting Auto in the paper source setting ENGINE ADJUST LEFT MARGIN Adjusts the horizontal gap of the printing position when the optional lower cassette is installed The setting in the main PCB is changed 3 5mm 3 5mm The setting value can be changed by 0 5mm TRAY1 mm TRAY2 mm DUPLEX mm YPOS ADJUST Adjusts the vertical gap of the printing position when the optional lower tray is installed The range ...

Страница 354: ...disk FONT ID SECONDARY FONT Saves the fonts to be currently registered as the secondary font into the storage device compact flash card hard disk FONT ID DOWNLOAD FONT Saves the current download font into the storage device compact flash card hard disk FONT ID exit SAVE SAVE MACRO Only when selecting the LaserJet emulation and any macros are registered Saves the macros to be currently registered i...

Страница 355: ...eived when DC3 is received READOUT OFF The data is not ignored even when DC3 is received FONT SELECT SCALABLE FONT Only when selecting the LaserJet emulation FONT ALL All scalable fonts can be selected when selecting the PCL font FONT LJ4 The following fonts cannot be selected when selecting the PCL font Atlanta BermudaScript PCBrussels Copenhargen Germany Portugal Calgry San Diego UR Roman FONT S...

Страница 356: ...ich the printer does not have If the download font is selected by ID however the bold font which has been specified before can remain in the printer so that the download font is printed in bold Though the function was deleted from the printer for the mean time it also caused the claims Therefore the setting which deletes the function is added DLFNT Bd It YES Creates the bold or italic font from th...

Страница 357: ...m bitmap font BROBITM ENABLE Enables the internal 10 12 pitch Brougham bitmap font ISR FONT SELECT ISRFONT DISABLE Normal mode ISRFONT ENABLE Israel mode 300DPI PRIORITY Though it was necessary to select and print the cartridge font of Courier for the US customer the 300dpi bitmap font could not be selected because the priority of the font selection was low in rank Since the current model is compa...

Страница 358: ...igh 1 DOWNLOAD 300 2 DOWNLOAD SCALABLE 3 CARD 300 4 CARD SCALABLE 5 CART 300 6 CART SCALABLE 7 RESIDENT 300 8 RESIDENT SCALABLE FX XL SCALE FONT Specifies the setting for the default font and font selected on the control panel in the Epson IBM emulation SCAL F NORMAL Enables to select the only similar size of the font when the scalable font is selected SCAL F ALL SIZE Enables to select all sizes o...

Страница 359: ...ignal goes down CDCC BSSL L The ACK signal is output before the BUSY signal goes down INPUT PRIME INPUT PRIME OFF The INPUT PRIME signal does not reset the printer INPUT PRIME ON The INPUT PRIME signal resets the printer REPRINT ON OFF Specifies that the reprint function is enabled or disabled forcedly REPRINT ON The reprint function is enabled or disabled following the setting of the user menu RE...

Страница 360: ...as Ctrl T Ctrl C and disables to use the binary data PS BINARY BIN Enables to print the binary data and disables the commands such as Ctrl T PS QUOTE BINARY PS QUOTEBIN OFF Disables to input the binary data even by the special codes PS QUOTEBIN ON Enables to input the binary data by the special codes PS IMAGE MASK Revises the image mask procedure to make print speed faster with an OS 2 driver PS I...

Страница 361: ...ESC E RESET Resets the printer HP ESC E F F Implements form feed PS300RESO Specifies that the resolution is reduced to 300dpi in the PS mode automatically PS300RESO NO Not reduces the resolution automatically PS300RESO IF 2M Reduces the resolution to 300dpi when the RAM size is 2MB PS300RESO FORCE Reduces the resolution to 300dpi COPY PAGES Fixes the copy page number to one page when COPY PAGES OF...

Страница 362: ...om the control panel and printer Web page and the demo page is not printed by the PJL command and MIB DEMO PAGE ON DEMO PAGE OFF JOB CANCEL TIME Specifies the timeout of job cancel 1 255 TIME OUT sec PSCOPYPAGE PSCOPYPAGE L3 PSCOPYPAGE L2 Switches the copy page operator in the PS mode between Level2 and Level3 PJL DEFAULT PSCOPYPAGE L3 L2 PJL SET PSCOPYPAGE L3 L2 PJL DINQUIRE PSCOPYPAGE PJL INQUIR...

Страница 363: ... NETHEAPLEVEL 1 15 PS FONT CACHE CLEAR CACHE OFF CLEAR CACHE ON Specifies to clear the font cache or not when finishing the PS mode printing PJL DEFAULT PSFONTCACHE ON OFF PJL SET PSFONTCACHE ON OFF PJL DINQUIRE PSFONTCACHE PJL INQUIRE PSFONTCACHE TMA CAL MODE TMA CAL MODE 8 Specified to enable or disable Toner Mss Amount TMA control setting and the TMA calibration timing 1 15 The table in the nex...

Страница 364: ...nute 4 Repeat Page or Minute 1 100 200 300 300 2 100 200 200 200 3 100 100 100 100 4 50 200 300 300 5 50 200 200 200 6 50 100 300 300 7 50 100 200 200 8 30 60 150 250 9 30 60 100 200 10 30 60 100 100 11 30 60 60 200 12 30 60 60 100 13 50 50 50 50 14 Not Available Not Available Not Available Not Available 15 Not Available Not Available Not Available Not Available ...

Страница 365: ...n the next section 4 Service Menu The following descriptions are not open to other than the service personnel in principal You may let users know as necessary To enter the reset parts life menu press the Go and buttons together The details for the menu are described as follows RESET PARTS LIFE OPC Belt Initializes the life of the OPC belt cartridge FUSER UNIT Initializes the remaining life of the ...

Страница 366: ...JAM D Paper jam D frequency JAM E Paper jam E frequency REPLACE COUNT Number of replacement Counts the frequency after clearing the counter when 100 pages or more are printed C TONER The number of the cyan toner cartridge replacement M TONER The number of the magenta toner cartridge replacement Y TONER The number of the yellow toner cartridge replacement K TONER The number of the black toner cartr...

Страница 367: ...0 SERVICE MENU MODIFY COUNT For modifying of the number of pages and remaining life the digit to be modified is raised whenever pressing the Set button The pages and remaining life are fixed on when pressing the Set button on the highest digit JAM COUNT Paper jam frequency JAM A1 Paper jam 1 frequency JAM A2 Paper jam 2 frequency JAM B Paper jam B frequency JAM C Paper jam C frequency JAM D Paper ...

Страница 368: ...MENU NV RAM DEBUG NV RAM HEX PRINT Prints the NVRAM HEX dump SERVICE MENU PPDS SUBSET Supports PPDS subset command with FX emulation ON OFF SERVICE MENU MAINTE PRINT Prints maintenance print Note 1 The counter is limited for the following items ERROR HISTORY Up to 100K errors are stored Note 2 When modifying the life period enter the ENGINE CONTROLLER MODE ...

Страница 369: ...PC belt cartridge may be shortened 1 Turn ON the power switch of the printer 2 After the printer has initialized open the front cover 2 and then the top cover ASSY 2 of the printer and pull up the OPC belt cartridge from the printer 3 Measure the gap on the OPC belt cartridge shown in the figure below If the gap is in the range of 5 2 mm the printer is installed correctly 5 2 mm OPC belt cartridge...

Страница 370: ...ter is approximately 9mm out of level from one side to the other i Is the printer inclined because the table the printer is installed on is unlevel ii Is the printer inclined because the table surface the printer is installed on is not strong enough iii Is the printer inclined because it is installed across two or more tables 1 1 Level Level 1 Level ...

Страница 371: ...f 5 2 mm the printer is installed correctly Refer to the figure for Step 3 6 If the gap is NOT in the range of 5 2 mm follow the steps below i When the gap is more than 7 mm the OPC belt has moved to the right Place something 1 cm thick such as a book under the right hand side of the printer as shown in the figure on the right Initialize the printer again and then measure the gap on the OPC belt c...

Страница 372: ... cm thick under the printer metal frame as shown in the figures above Even if the Lower Tray unit is installed onto the printer the book should be positioned in the same position If you have a spirit level put it on the output tray and install the printer as level as possible referring to the level The surface that the printer is placed on should have its level corrected properly The temporary act...

Страница 373: ...ILEDG32 on the Desktop 2 Connect the parallel cable to the printer then turn the printer power switch ON Wait until READY message appears on the LCD display 3 Double click the FILEDG32 icon and drag and drop the firmware data to the printer icon in the FILEDG32 Data LED orange blinks for approx 2 minutes and 40 seconds Alarm LED red blinks for approx 2 minutes and 20 seconds NOW WRITING and NOW ER...

Страница 374: ...te labeled to the back of the machine as an ID code Then press the OK button The setup utility will transmit the ID code data from your PC to the machine and then it will terminate 7 Set the paper size as A4 or LETTER from the panel menu MENU PRINT MENU PAPER A4 LETTER 8 Print out the Print Settings by pushing the Set button three times to check the version of the firmware ...

Страница 375: ...rd is unformatted format it To format the CompactFlash card with the computer do it from Explorer To format the CompactFlash card with the printer plug the CompactFlash card to the printer while the power is off then turn on the printer Select SETUP DELETE STORAGE FORMAT CF with the control panel then press the SET key Press the SET key again when OK message appears PROGRAMING WAIT appears followe...

Страница 376: ...e LCD blacks out and DATA LED blinks Be sure NOT to take out the CompactFlash card or turn the printer off until it reaches to the condition of step 9 Rewriting may be impossible once the writing procedure fails 8 When rewriting finishes Complete appears on LCD Turn OFF the printer then take out the CompactFlash from the printer ...

Страница 377: ...pressing down the Go and keys until Complete appears on the LCD display 5 If Complete appears release the Go and keys NVRAM is now successfully copied 2 To write back NVRAM from CompactFlash 1 Turn off the power 2 Insert the CompactFlash into the printer slot 3 Turn on the power without pressing any keys 4 The SELF TEST appears on the LCD followed by Now initializing 5 If Complete appears NVRAM is...

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