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the discharger bias switch signal (/DCHGUP) turns “H” the low output bias changes to “L” and
the circuit applies a high voltage output bias. The high voltage output bias is applied only at
the trailing edge of a single side print and during the second side of a duplex print.

e. Toner sensing/cartridge sensing

The EP-72 cartridge has a toner sensor.

The DC controller detects the toner level and whether a cartridge is installed when the devel-

oping AC bias is applied to the developing cylinder by the DEVELOPING AC BIAS DRIVE signal
by checking the TONER LEVEL signal (TONSNS) voltage.

2 - 18

CHAPTER 2

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Summary of Contents for LBP-3260

Page 1: ...SERVICE MANUAL REVISION 0 COPYRIGHT 1999 CANON INC CANON LBP 3260 REV 0 JAN 1999 PRINTED IN JAPAN IMPRIME AU JAPON RY8 1390 000 JAN 1999 ...

Page 2: ...f this manual should be strictly supervised to avoid disclosure of confidential information Prepared by PERIPHERAL PRODUCTS QUALITY ADVANCEMENT DIV PERIPHERAL PRODUCTS TECHNICAL DOCUMENTATION DEPT CANON INC 5 1 Hakusan 7 chome Toride City Ibaraki Pref 302 8501 Japan ...

Page 3: ...ctrical and mechanical systems Chapter 3 The Mechanical System Explanation of mechanical operation disassembly reassembly and adjustment pro cedures Chapter 4 Troubleshooting Troubleshooting procedures reference values and adjustments maintenance and servicing etc Appendix General timing chart general circuit diagram etc Information in this manual is subject to change as the product is improved or...

Page 4: ...r beam printer final pages were printed on DAINIPPON SCREEN MFG CO LTD DT R3100 All graphics were produced with Macromedia FreeHand J and all documents and page layouts were created with QuarkXPress E The video images were captured with SONY degital video camcorder and Radius PhotoDV capture board system and modified with Adobe Photoshop J ...

Page 5: ...YSTEM 2 32 A Outline 2 32 B Printing Process 2 34 V PICK UP FEED SYSTEM 2 42 A Outline 2 42 B Paper Pick up 2 45 C Fixing and Delivery Unit 2 57 D Paper Jam Detection 2 59 VI OVERALL CONTROL SYSTEM 2 61 A Video Controller PCB 2 61 B Control Panel 2 65 C Self Test 2 66 I PREFACE 3 1 II EXTERNALS 3 2 A Locations 3 2 B Control Panel Unit 3 7 III MAIN UNITS 3 8 A Laser Scanner Unit 3 8 B Drive Unit 3 ...

Page 6: ... 3 32 C Feed Clutch 3 32 D Registration Clutch 3 33 E Lifting Plate Solenoid 3 33 F Cassette Pick up Solenoid 3 34 G Face up Solenoid Unit 3 34 VII MOTORS FANS 3 35 A Locations 3 35 B Main Motor 3 36 C Pick up Motor 3 36 D Fans 3 37 VIII PCBS 3 41 A Locations 3 41 B Video Controller PCB Unit 3 42 C DC Controller PCB 3 43 D Pick up PCB 3 44 E Multi purpose Tray PCB 3 44 F Switch Sensor PCB 3 45 G H...

Page 7: ...ERVICING 4 35 A Periodic Replacement Parts 4 35 B Expected Service Life of Consumable Parts 4 35 C Periodic Service 4 35 D Cleaning during a Service Visit 4 36 E Standard Tools 4 38 F Special Tools 4 39 G Special Tools printer driver tester Explanation 4 40 H Solvents and Oil List 4 47 IX LOCATION OF CONNECTORS 4 48 ...

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Page 9: ...TER 1 PRODUCT INFORMATION I FEATURES 1 1 II SPECIFICATIONS 1 3 III SAFETY INFORMATION 1 6 IV PARTS OF THE PRINTER 1 7 V INSTALLATION 1 9 VI MAINTENANCE AND SERVICING BY THE CUSTOMER 1 18 VII OPERATION 1 21 ...

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Page 11: ... to 2 300 sheets of A4 or Letter size paper 75g m2 can be delivered simple stacking 7 Various delivery methods With the optional sorter attached to the printer paper can be delivered in 4 modes mail box job separator stacker and collator 8 Memory saving technology Memory Reduction Technology accomplishes printing at 600 DPI with standard equipped mem ory 8 MB It also decreases errors such as memor...

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Page 13: ...50W 8 Paper pick up Multi purpose tray Cassette Envelope feeder EF 9 option 2 000 Sheet paper deck PD 82 option 2x500 Sheet paper deck PD 82K option Print paper Plain paper colored paper labels OHT envelopes rough paper bond paper tarnsparency paper recycled paper letterhead Paper sizes Multi purpose tray Min 98 4mm W 190 5mm L to max 297mm W 432mm L sized plain paper 64g m2 to 128g m2 recommended...

Page 14: ...pe feeder EF 9 2000 sheet paper deck PD 82 2x500 sheet paper deck PD 82K sorter S 82 stapler stacker SS 72 Notes 1 A test print at room temperature of 20 C with rated voltage input 2 When the printer is in READY state at a room temperature of 20 C the time from reception of the PRINT signal from the video controller until an A4 or A3 sized print is delivered onto the face down tray 3 At a room tem...

Page 15: ...Interface ATA 3 IDE 3 Dimensions 70 w 12 7 D 100 H mm excluding mounting materials and connector 4 Weight About 0 15kg 5 Power supply DC5V supplied from the printer Specifications are subject to change with product modification 1 5 CHAPTER 1 ...

Page 16: ...e emission reference value set by Underwriters Laboratory UL at the time it is shipped from the factory D Power Supply Unit Safety Care is needed as even though the printer switch may be OFF there is a possibility that a cur rent may still flow on the primary side Be sure to remove the power plug before disassembly and assembly of this printer 1 6 CHAPTER 1 Invisible laser radiation when open AVOI...

Page 17: ...t switch 6 Multi purpose tray 7 Duplex unit door 8 Upper cassette 9 Lower cassette 10 Power switch 11 Delivery cover 12 Face up tray 13 Parallel interface connector 14 Power receptacle 15 Option interface connector option 16 Expansion board slot 17 Cleaning brush 18 EP 72 cartridge 19 Pick up unit door 1 7 CHAPTER 1 1 2 3 4 5 6 10 9 8 7 11 12 13 14 15 16 17 18 19 ...

Page 18: ... Laser scanner unit 17 Pick up roller 6 Primary charging roller 18 Transfer charging roller 7 Photosensitive drum 19 Upper cassette 8 Developing cylinder 20 Lower cassette 9 EP 72 cartridge 21 Lower fixing roller 10 Registration roller 22 Duplex deflector 11 Multi purpose tray pick up roller 23 Face up deflector 12 Separation pad 1 8 CHAPTER 1 1 2 3 4 5 6 7 6 8 9 10 11 12 13 14 15 16 17 18 21 22 2...

Page 19: ...ed voltage Power frequency 50 60Hz 2Hz 2 Operating environment Install in a location that meets the following conditions Level flat surface Temperature humidity within the following ranges Surrounding temperature 10to 32 5 C Surrounding humidity 20 to 80 RH relative humidity without condensation Cool well ventilated space Do not install in the following locations Exposed to direct sunlight If you ...

Page 20: ...Figure 1 5 1 1 10 CHAPTER 1 900mm 100mm 834mm 2300mm 1500mm 2300mm 900mm 2600mm 2600mm 1200mm 900mm 1380mm 2600mm 2600mm 834mm 100mm 100mm 834mm 1200mm 1500mm 1500mm ...

Page 21: ...tape and the black sheet from the cartridge 3 Hold the cartridge on each side as shown in figure 1 5 2 and slowly rock it 5 to 6 times to evenly distribute the toner 4 Place the cartridge on a flat surface While holding down on the top of the cartridge with one hand grasp the tab with the other and gently pull out the sealing tape 5 Open the upper cover of the printer and load the cartridge with b...

Page 22: ... screws on the PCB Figure 1 5 2 7 Insert the claw of the hard disk into the hole of the PCB Figure 1 5 3 8 Fix the hard disk with the enclosed 2 screws and then connect the connector Figure 1 5 4 1 12 CHAPTER 1 Hook ...

Page 23: ...key REALLY FORMAT IGNORE DISK appears in the display 16 Press the Plus Minus key FORMATTING appears in the display Disk LED lights up and formatting starts 17 When the printer completes formatting the hard disk DISK FMT RESTART appears in the display and the printer restarts automatically Figure 1 5 5 1 13 CHAPTER 1 Power On READY PAUSED Press On Line key Press Menu key CONFIG MENU CONFIG MENU FOR...

Page 24: ...se at anytime 5 Operation precautions 1 Turn ON the power of external equipment then the printer Turn the power OFF in the reverse sequence If the power of external equipment is turned ON OFF while the printer is ON noise may be transmitted through the connection cable between the external equipment and the printer and error may occur on the printer 2 Turn off the power of both the printer and the...

Page 25: ... the photosensitive drum it will deteriorate if exposed to strong light As there is toner in the cartridge be sure to explain to the customer the need to be careful in handling and storing unsealed cartridges a Storage environment 1 Be sure to store in the aluminum bag 2 Avoid locations exposed to direct sunlight near windows etc Do not leave them in cars for any extended period of time as heat ca...

Page 26: ...t 3 to 5 pages of test patterns after loading the cartridge in the printer 2 When transporting the printer remove the cartridges Either insert the cartridge in the aluminum bag or wrap it in a thick cloth to ensure light does not penetrate it 3 Do not leave the cartridge near CRT displays disk drives or floppy disks The magnetism generated by the cartridge may destroy their data 4 As the photosens...

Page 27: ...Figure 1 5 7 1 17 CHAPTER 1 ...

Page 28: ...uide registration guide When replacing the cartridge clean the transfer guide and registration guide with soft flannel cloth Figure 1 6 1 3 Static charge eliminator When replacing the cartridge clean the static charge eliminator with the cleaning brush attached inside the printer Figure 1 6 2 1 18 CHAPTER 1 Transfer chargin g roller Transfer guide metal part Registration guide metal part Transfer ...

Page 29: ...s the Enter key LOAD PLAIN A4 or LETTER IN MANUAL will appear in the display and the Continue LED and Form Feed LED will light up 11 Press the Continue key to print the Cleaning Page LOAD BLANK SIDE UP IN MANUAL will appear and the Continue LED will light up Figure 1 6 3 1 19 CHAPTER 1 Load this sheet this side down in MPT Læg dette ark med denne side nedad i universalbakke Laad dit vel met deze k...

Page 30: ...ontinue key to feed the Cleaning Page on the other side of the paper LOAD CLEANING PAGE IN MANUAL will appear and the Continue LED will light up 14 Place the Cleaning Page into the multi purpose tray Figure 1 6 5 15 Press the Continue key to feed the Cleaning Page through the printer to clean the fixing unit 1 20 CHAPTER 1 ...

Page 31: ...hts and seven menu and operation keys Figure 1 7 1 Error indicator 1 On An error has occurred and printing has stopped Check the display for a message describing the problem Off Operation is normal and there is no error Power indicator 2 On The printer is ready to print Flashing The printer is warming up Wait until the light stays on before you start printing operations Off 1 21 CHAPTER 1 Power Er...

Page 32: ...elect RESET PRINTER or RESET MENU If you choose RESET PRINTER all resources in the memory soft fonts macros stored page data and so on are erased but the menu items selected are unaffected If you choose RESET MENU the facto ry default values are restored for most menu items Disk indicator 7 On The disk is being accessed for fonts etc Off The disk is not being accessed Staple indicator 8 On Staplin...

Page 33: ... the Continue key every time you need to feed a single sheet of paper Menu key 15 With the printer off line press the Menu key to scroll through the menu names and return to the first menu name To scroll back through the menu names in the opposite direction press the SHIFT and MENU keys Depending on what options have been installed some menu names may not appear On Line key 16 Takes the printer of...

Page 34: ...u Press the Menu key until you see the item 5 Press the Plus Minus key until you display the values you want to change 6 If you want to change the setting press the Plus Minus key until the value you want is displayed Then press the Enter key 7 Press the On Line key to set the printer on line Figure 1 7 2 list the Menu Operation Flow 2 Restoring the default settings There are several types of defa...

Page 35: ...stores all menu settings to their factory settings with the exception of the page count value multi purpose tray page size envelope feeder size and display language To perform a cold reset press and hold down the On Line key while you turn on the print er The printer displays the message COLD RESET followed by WARMING UP When the printer comes on line the factory default settings are restored 1 25...

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Page 37: ...OLOR CARDSTOCK LABELS TRANSPARENCY ROUGH CUSTOM1 CUSTOM2 CUSTOM3 CUSTOM4 CUSTOM5 CUSTOM6 DECK1 DECK2 if installed LOWER UPPER MPT ENVELOPE if installed JOB SEPARATION STACKER SORTING TO CONFIRM CANCEL SIDE OUTPUT BIN SORTER BIN UP BIN1 MAILBOX1 BIN2 MAILBOX2 BIN3 MAILBOX3 BIN4 MAILBOX4 BIN5 MAILBOX5 BIN6 MAILBOX6 BIN7 MAILBOX7 SORTER BIN UP 7 BIN SORTER BIN7 MAILBOX7 SORTER BIN UP 7 BIN SORTER OFF...

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Page 39: ...being output A signal that is L or has a slash in front of its name is active at ground level and inac tive at the supply voltage level There is a microcomputer in this printer But as the internal operation of the microcom puter cannot be checked an explanation of the operation of the microcomputer has been left out As it is assumed that no repair will be made to customer circuit boards the explan...

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Page 41: ...ansfer charging roller Primary charging roller Photos ensitive drum Upper cassette Lower cassette Face up tray Face down tray LASER SCANNER UNIT Scanning mirror Scanner motor BD circuit Pick up control unit Multi purpose tray Envelope feeder optional Envelope feeder pick up unit PAPER PICK UP FEED SYSTEM ENGIN CONTROL SYSTEM OVERALL CONTROL SYSTEM Operation panel Low voltage power supply High volt...

Page 42: ...ing rollers to put the printer in the standby mode Cleans the transfer charging roller Maintains the printing temperature of the fixing roller so that the printer is ready to print To stabilize the sensitivity of the drum in preparation for printing and to clean the transfer charging roller To form an image on the photosensitive drum according to the VDO and VDO signals input from the video contro...

Page 43: ...lexing unit initialization Duplexing unit connection Fixing heater ON Main motor scanner motor pick up roller registration roller primary AC transfer negative bias ON Development AC bias ON Checks if the cartridge is installed and if there is toner in it Main motor scanner motor pick up roller registration roller primary AC transfer negative bias ON Main motor scanner motor pick up roller registra...

Page 44: ...ch block a CPU IC201 An 8 bit single chip microcomputer UPD78056 by NEC is used The CPU is a one chip type in which ROM and RAM are built in and controls the operation of the engine according to the control program stored in the ROM b Gate array IC202 Its functions are to 1 control the laser scanner 2 control the video interface 3 communicate with the envelope feeder 4 communicate with the printer...

Page 45: ... cassette sensor Upper cassette sensor Lower cassette paper level sensor 1 Lower cassette paper level sensor 2 Upper cassette paper level sensor 1 Upper cassette paper level sensor 2 Lower cassette paper out sensor Upper cassette paper out sensor H when the pick up unit door is open H when the sensor detects the lower cassette H when the sensor detects the upper cassette These sensors detect the a...

Page 46: ...r full sensor Face down tray delivery sensor Fixing unit delivery sensor H when the face down tray is fully loaded with paper H when the sensor detects paper H when either the upper or delivery cover is open Switch sensor PCB Door switch H when the sensor detects paper EP 72 cartridge Toner sensor Detects no cartridge installed and toner out High voltage power supply PCB Detects the lower cassette...

Page 47: ...put J202 4 2 11 10 7 9 3 5 8 J1001 8 10 1 2 5 3 4 7 9 5V 24VB DRVES LENBL LON VDO VDO J220 A12 B12 A1 B1 A2 B2 A3 B3 A4 B4 A6 A7 B7 A8 B8 A9 B9 B10 A11 B11 5V J206 1 2 J6 3 4 BDI 4 3 1 2 SCNRDY SCND SCNCLK J207 7 1 2 3 5 4 6 J1 1 7 6 5 3 2 4 24VA 1 7 6 5 3 2 4 5V 1 7 6 5 3 2 4 J18 J701 A12 B12 A1 B1 A2 B2 A3 B3 A4 B4 A6 A7 B7 A8 B8 A9 B9 B10 A11 B11 J218 1 2 3 4 5 6 MMRDY MMOTD J12 1 2 3 4 5 6 24V...

Page 48: ...xhaust fan runs normally Power supply fan H to rotate at high speed L to rotate at low speed L when the exhaust fan runs normally Fixing unit Scanner unit fan H to rotate at high speed L to rotate at low speed L when the suction fan runs normally Electrical unit fan H to rotate at high speed L to rotate at low speed L when the exhaust fan runs normally Fixing unit fan Registration clutch L to run ...

Page 49: ... if down it will rise Face up solenoid Switch sensor PCB L to deliver printed paper face up Fixing main heater Fixing sub heater Thermo switch Fixing unit Power supply Power switch Relay AC power The voltage drops as the fixing roller temperature rises Fixing roller surface temperature sensor RY152 L to turn OFF the relay and interrupt the power to the fixing heater The main heater is turned ON wh...

Page 50: ...based on the voltage of the FSRTH signal in order to bring the surface temperature of the fixing roller to the specified value This printer sets the TH L H signal to H when the fixing roller temperature is low during warm up and to L when the temperature is high during normal temperature control in order to improve the accuracy of the FSRTH signal detection Table 2 2 1 shows the fixing roller targ...

Page 51: ... for the first page in duplex print is 5 C lower 2 The print speed in the above table is for A4 or Letter sized paper 2 11 CHAPTER 2 190 195 Normal mode Rough mode 169 170 32 24 WAIT PRINT Target temperature STBY PRINT SPEED ppm C note 1 note 2 ...

Page 52: ...MT24 TSWOUT TSWIN J222 1 4 J222 2 3 P12 AN12 78 C296 PSTYP P15 1 J217 6 7 J217 1 2 8 J217 3 5 J217 11 J217 12 J217 10 J217 9 J217 13 FSRL1 FSRL2 FSRN2 FSRN1 J10 2 3 4 1 5V 5V AMP 5V GATE ARRAY IC202 Current transformer Low voltage power supply circuit Fixing roller Fixing roller heater Thermistor Thermoswitch Safety circuit DC controller PCB Power supply unit Relay drive circuit Triac drive circui...

Page 53: ...Warmup error detection The fixing unit does not reach the target temperature see Table 2 2 1 within 180 seconds after the start of warm up d Broken wire detection after the fixing unit is ready The temperature detected by the thermistor is 150 C or below during standby or printing e Heater current detection The CPU detects a fixing heater broken wire if the FIXING HEATER CURRENT SENSE signal FSRCT...

Page 54: ...an adjust the nip width in two steps by changing the spring pressure of the lower fixing roller If an envelope wrinkles after it is printed set the envelope position lever to the enve lope position Normal mode Envelope mode Figure 2 2 9 2 14 CHAPTER 2 ...

Page 55: ...2 15 CHAPTER 2 ...

Page 56: ...ing AC Transformer Transfer Positive Voltage Transformer Primary AC Transformer TB701 DEV DCHGB HRLB HRLBD DCHGUP DCHGBD J701 A2 J701 A4 TONSNS DEVACCLK J701 A8 PR1ACCLK J701 A12 J701 B12 J701 A11 J701 B11 GND To primary charging roller To developing cylinder From toner sensor To transfer charging roller To static charge eliminator To upper fixing roller 24V 21 5V Reference Voltage Power Supply AC...

Page 57: ...eveloping DC bias and developing AC bias to the developing cylinder The developing DC bias changes according to the IMAGE DENSITY ADJUSTMENT signal DENADJ making the image density adjustable c Transfer charging roller voltage generation The negative between page and print bias are applied to the transfer charging roller according to the print sequence The negative bias voltage is applied to the tr...

Page 58: ...edge of a single side print and during the second side of a duplex print e Toner sensing cartridge sensing The EP 72 cartridge has a toner sensor The DC controller detects the toner level and whether a cartridge is installed when the devel oping AC bias is applied to the developing cylinder by the DEVELOPING AC BIAS DRIVE signal by checking the TONER LEVEL signal TONSNS voltage 2 18 CHAPTER 2 ...

Page 59: ... 5V 24VA 24VB 5V 24VA 5V 24VB 24VA 5V 24VB Over current detection circuit Current and voltage detection circuit 5V control photocoupler 3 3V 5V REMT24 24V 3 3V 5V Converter Current transfor mer Safety circuit Heater drive circuit Triac Current fuse Relay Circuit breaker Noise filter Transformer Power switch S101 Power supply Low voltage power supply circuit Video controller PCB Scanner motor Main ...

Page 60: ...C 5VDC and 3 3VDC power supply circuits have an over current protective func tion and over voltage protective function which automatically interrupt output voltage to pro tect the circuits when a short circuit or other troubles on the load side result in over current flow or abnormal voltage If the over current over voltage protective functions are activated and no DC voltage is out put from the p...

Page 61: ...nter and the video controller PCB and gives information concerning the sequence of printer operation mak ing use of interface signals a Video interface signals Figure 2 2 12 2 21 CHAPTER 2 BD PPRDY RDY VSREQ SBSY STS CCRT PCLK PDLV PFED SPCHG CBSY PRNT VSYNC PRFD CPRDY VDO VDO CMD CCLK CPSEL FPCS FPO FPI FPCK Video controller PCB External device host computer etc Printer DC controller PCB LASER DR...

Page 62: ... signal VSYNC from the DC controller to the laser driver through the DC controller The VIDEO signals VDO VDO are sent to the laser dri ver as two low voltage differential signals In response to the VIDEO signals VDO VDO the laser driver switches the laser diode ON and OFF The laser beam is scanned repeatedly across the photosensitive drum with the scanning mir ror to form the latent electrostatic ...

Page 63: ...nd reaches its specified speed it sets the MAIN MOTOR READY signal MMRDY to L The CPU notifies the video controller PCB of a main motor failure in the following cases 1 The MMRDY signal does not become L withing 2 5 seconds after from the main motor rotation starts 2 The MMRDY signal becomes L once but becomes H for more than 0 1 seconds contin uously during the specified speed rotation 2 23 CHAPT...

Page 64: ...d full speed in case of duplex printing When the main motor drive stops after printing the CPU rotates FM1 FM2 FM3 and FM4 at full speed for about 30 seconds then at half speed The CPU rotates FM5 at half speed for about 30 sec onds full speed for about 30 seconds in case of duplex printing The drive voltages output from the fan motor drive circuit and multi purpose tray fan motor 2 24 CHAPTER 2 F...

Page 65: ... half speed The CPU assesses a fan motor failure and reports it to the video controller if the FAN LOCK DETECTION signals FAN1S FAN2S FAN3S FAN4S FAN5S stay L for about 1 5 sec onds or more for 3 times at 5 seconds intervals while the fan motors are ON 2 25 CHAPTER 2 ...

Page 66: ... that is rotating at a specified speed The beam reflected from the scanning mirror is brought to a point of focus on the photosen sitive drum with the focusing lens and the mirror located in front of the scanning mirror As the scanning mirror rotates at a specified speed the beam is scanned across the drum at a specified speed The drum also rotates at a specified speed and the laser beam successiv...

Page 67: ...rns the laser diode ON and OFF according to the VDOUT signal The CPU monitors the LASER FAILURE DETECTION signal DRVES sent from the laser dri ver PCB to check whether the laser diode is generating laser normally or not The CPU emits laser forcibly when the BDI signal is not input for 0 7 continuous seconds from the BD PCB while the scanner motor runs at the specified speed and notifies the video ...

Page 68: ...anner unit IC201 sets the FORCED LASER ON signal LON to L during unblanking period The laser driver turns the laser diode ON when the LON signal is L The laser beam turned ON by the LON signal is reflected at the small fixed BD mirror locat ed in the light path where the laser beam scanning starts and is input to the BD PCB in the laser scanner unit The BD PCB detects the laser beam generates a BD...

Page 69: ...not recognize the paper width So the T1 and T2 values are assumed to be UNIVERSAL size 297 0mm x 635 0mm the maximum paper width for this printer 3 The CPU determines the actual size of the paper being fed by detecting the time from the leading edge of the paper passes through the registration paper sensor PS1 until its trailing edge clears the sensor The image is then masked according to the dete...

Page 70: ...the scanner driver rotates the scanner motor using the SCNCLK signal When the scanner motor reaches its prescribed speed the scanner driver sets the SCANNER MOTOR READY signal SCNRDY signal to L The CPU on the DC controller PCB monitors the SCNRDY signal to make sure that the scan ner motor runs at the correct speed The CPU notifies the video controller of a scanner failure in the following cases ...

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Page 72: ...ted by the VIDEO signals VDO VDO is exposed to the photosensitive drum surface The latent image formed on the photosensitive drum is changed to a visible image by the toner on the developing cylinder then transferred onto paper by the transfer charging roller Residual toner on the photosensitive drum surface is scraped off by the cleaning blade The potential on the drum is made uniform by the prim...

Page 73: ...NT Transfer negative bias drive signal TRFNVD Transfer bias monitor signal TRFVSNS Fixing roller bias drive signal HRLBD Transfer bias constant current drive signal TRFCCD Discharge bias drive signal DCHGBD Transfer bias frequency output signal TRFCLK Discharge bias switch signal DCHGUP High voltage bias frequency output signal HVTCLK Developing AC bias drive signal DEVACD Primary AC bias frequenc...

Page 74: ... is alu minum Figure 2 4 3 The printing process can be divided into five major stages 1 Electrostatic latent image formation stage Step 1 Primary charge Step 2 Scanning exposure 2 Developing stage Step 3 Development 3 Transfer stage Step 4 Transfer Step 5 Separation 4 Fixing stage Step 6 Fixing Step 7 Fixing roller cleaning 2 34 CHAPTER 2 Cleaning blade Photosensitive drum Primary charging roller ...

Page 75: ...t Fixing stage Transfer stage Electrostatic latent image formation stage Developing stage Multi purpose tray feed Paper path Direction of drum rotation 2 Scanning exposure 1 Primary charge 8 Drum cleaning Print delivery 6 Fixing 5 Separa tion 4 Transfer Registration Cassette feed 7 Fixing rollre cleaning ...

Page 76: ...tion of the latent image formation a uniform negative potential is applied to the pho tosensitive drum surface For primary charge the printer uses the charging method which directly charges the drum The primary charging roller is made of conductive rubber In addition to DC bias AC bias has been applied to the primary charging roller to keep the potential on the drum s surface uni form The DC bias ...

Page 77: ...e on the surface of the drum to cre ate a visible image This printer uses the toner projection development method with a single component toner Step 3 Development Figure 2 4 8 Note Charges on the exposed area of the photosensitive drum are shown as positive in this figure In actuality they are negative but they are more positive than those on the devel oping cylinder 2 37 CHAPTER 2 Laser beam Unex...

Page 78: ...o the developing cylinder to help project the toner particles to the drum surface and improve the contrast of the printed image The center voltage of the AC bias 1600 Vp p varies with the DC bias voltage The change in the DC bias changes the potential differ ence between the cylinder and drum so the density of the print can be adjusted It can be done through a command from an external device This ...

Page 79: ...rg ing roller to the drum The transfer charging roller is cleaned by removing the toner on its sur face to the drum Step 5 Separation Figure 2 4 11 The stiffness of the paper causes it to separate from the drum Thin paper or curled sheets to be duplex printed may not separate but remain wrapped around the drum To prevent this a negative bias is applied to the static charge eliminator to reduce ele...

Page 80: ...h teflon tubes with a very low adhesive property The negative DC bias is applied to the upper fixing roller to prevent the toner from adhering to the rollers Step 7 Fixing roller cleaning Figure 2 4 13 In the fixing stage not all the toner particles are fixed to the paper In some cases toner parti cles on the back of the paper are adhered to the lower roller The fixing cleaning roller cleans the l...

Page 81: ...eaning stage so that the next print image will be clear and distinct Step 8 Drum cleaning Figure 2 4 14 The residual toner on the drum surface is scraped away with the cleaning blade to clean the drum surface in preparation for the next print The removed toner is collected in the cleaner container 2 41 CHAPTER 2 Cleaner container Cleaning blade Sweeper strip Photo sensitive drum ...

Page 82: ...the manual feeding pick up roller turns and feeds a sheet of paper from the multi purpose tray into the printer The paper is controlled by the registration roller so that the leading edge of the toner image on the photosensitive drum matches the leading edge of the paper The paper is fed transferred then separated from the drum fed to the fixing unit and delivered onto the face up or face down tra...

Page 83: ...208 PS2 PS1301 PS1 PS1403 PS1402 SW1601 SW1602 SW1603 SW1604 SW1601 SW1602 SW1603 SW1604 PS1401 PS1205 PS1206 PS1203 PS1204 3 2 1 4 5 6 7 8 9 1 0 1 1 1 2 1 3 1 4 1 5 PS1302 Multi purpose tray PCB 1 6 1 7 Switch sensor PCB 3 2 1 4 5 6 7 8 9 1 0 1 1 1 2 1 3 1 4 1 5 1 6 1 7 FACE DOWN TRAY DELIVERY SENSE signal FDOUTS FACE DOWN TRAY PAPER FULL SENSE signal FDFULS FIXING UNIT DELIVERY SENSE signal FPOU...

Page 84: ... CL2 Feed clutch CL3 Manual feed clutch Manual feeding pick up roller Transfer charging roller Feed roller 2 Feed roller 1 Lifting plate Upper cassette Lower cassette Separation roller Separation roller Pick up roller Registration roller Photosensitive drum 3 2 1 4 5 6 7 8 FACE UP SOLENOID DRIVE signal FUSLD REGISTRATION CLUTCH DRIVE signal REGCLD MAIN MOTOR DRIVE signal MMRDY PICK UP MOTOR DRIVE ...

Page 85: ... to drive the shaft drive arm At the same time the rotational force of the pick up motor is transmitted to the cassette pick up roller via the feed roller gear As a result the rotating cassette pick up roller goes down to the paper level picks up a sheet of paper goes up to the paper pick up standby position and stops rotation When the pick up motor rotates clockwise the paper is picked up from th...

Page 86: ...r PS1403 Pick up timing from the upper cassette A4 tow pages continuously print Unit Seconds STBY INTR PRINT STBY LSTR 3 0 About 1 1 0 52 0 03 0 52 0 06 0 06 0 03 Unit Seconds Power switch ON PRINT signal PRNT VERTICAL SYNC signal VSYNC Main motor MT1 Pick up motor SMT1 Cassette pick up solenoid SL1 Feed clutch CL2 Registration clutch CL1 Pick up unit paper sensor PS2 Registration paper sensor PS1...

Page 87: ...ted according to the lifter position The lifter contains a light blocking plate which blocks two sensors on the pick up PCB The lifter position is detected by these sensors And as a result the remaining paper level in the cassette is detect ed The remaining paper level in the upper cassette is detected by the combination of outputs from the upper cassette paper level sensor 1 PS1205 and the upper ...

Page 88: ...206 Pick up unit Pick up PCB Light blocking plate Remaining paper level Remaining number of sheets note Almost full High Low Almost empty 430 sheetes or more 200 490 sheetes 50 260 sheetes 110 sheetes or less Note Plain paper 75g m2 recommended paper 4 3 2 1 1 2 3 4 ...

Page 89: ... the paper reduce The two cases for the lift up operation are as follows Figure 2 5 7 2 49 CHAPTER 2 Pick up roller Feed roller 1 Separation roller Pick up roller shaft Cassette pick up cam Cassettte pick up solenoid Lift up cam Print paper Pick up motor drive Main motor drive Gear Lift up release arm Pick up roller shaft fixing arm Feed roller gear Shaft drive arm Paper lifting plate ...

Page 90: ...er pick up solenoid SL3 is turned ON Then the shaft drive arm is driven by the cassette paper pick up cam rotation through the gear Figure 2 5 8 2 50 CHAPTER 2 Main motor drive Lifter gear Lift up cam Pick up roller shfat fixing arm Pick up roller shaft Cassette pick up solenoid Cassette pick up cam Shaft drive arm ...

Page 91: ...e designated position Figure 2 5 9 The lift up cam starts rotating when unfixed and the lift up arm pushes up the lifter gear by one tooth The paper lifting plate is lifted by repeating this operation Figure 2 5 10 2 51 CHAPTER 2 Lifter gear Lift up cam Lift up arm Lift up release arm Pick up roller shaft fixing arm Pick up roller shaft shaft drive arm Paper lifting plate Print paper Lifter gear L...

Page 92: ...g At the same time the lift up cam is fixed by driving the pick up roller shaft fixing arm and the lift up release arm Then the lift up arm is stopped and the lift up operation is completed Figure 2 5 11 2 52 CHAPTER 2 Pick up roller shaft fixing arm Pick up roller shaft Shaft drive arm Lifter gear Lift up cam Paper lifting plate Lift up release arm Cassette pick up roller Lift up arm Print paper ...

Page 93: ...ller shaft pushes the lift up release arm and the lift up cam is unfixed Figure 2 5 12 2 53 CHAPTER 2 Lift up arm Pick up roller shaft fixing arm Pick up roller shaft Lifter gear Lift up cam Paper lifting plate Lift up release arm Cassette pick up roller shaft Print paper Certain paper level Moving distance of pick up roller Falling width of pick up roller Less than certain paper level ...

Page 94: ...ing plate touches the pick up roller the pick up roller shaft is lifted up Then the fixing arm is released and the lift up release arm lifts up the pick up roller shaft to the waiting position by force of the spring At the same time the pick up roller shaft fixing arm and the lift up release arm are driven to fix the lift up cam As a result the lift up arm is stopped and lift up operation is compe...

Page 95: ...otational force via the transported paper On the other hand if multiple sheets of paper are picked up the low friction force between the sheets of paper result in a weak rotational force being transmitted to the separation roller from feed roller 1 Consequently the separation roller s own rotational force separates the extra sheet Figure 2 5 13 2 55 CHAPTER 2 Pick up roller Feed roller 1 Print pap...

Page 96: ...d by the separation pad and one sheet is fed into the printer by feed roller 2 The subsequent operations are almost the same as for those of cassette feeding except that SL2 is turned ON again right after the rotation of the registration roller to lower the lifting plate The CPU turns ON SL2 to lower the lifting plate If it is normal the lifting plate position sen sor detects the lifting plate wit...

Page 97: ...very sensor PS1403 Figure 2 5 15 2 57 CHAPTER 2 PS1401 PS1402 PS1403 MT1 SL3 Upper fixing roller DC controller PCB PS1401 Face down tray paper full sensor PS1402 Face down tray delivery sensor PS1403 Fixing unit delivery sensor SL3 Face up solenoid MT1 Main motor Face up delivery roller Flapper Fixing unit delivery roller Lower fixing roller FACE UP SOLENOID DRIVE signal FUSLD FACE DOWN TRAY DELIV...

Page 98: ...deflector to the face up tray and the paper is delivered through the face up tray If FUSLD is H the paper is delivered through the face down tray on the top of the print er The paper delivered through the face down tray is detected by the face down tray delivery sensor PS1402 When the face down tray becomes full this is detected by the face down tray paper full sensor PS1401 2 58 CHAPTER 2 ...

Page 99: ...bout 9 5 seconds after start of pick up operation from the multi purpose tray or envelope feeder 3 Fixing unit delivery delay jam The CPU assesses a fixing unit delivery delay jam if the leading edge of the paper does not reach the fixing unit deliver sensor PS1403 within about 2 2 seconds after receiving the VERTICAL SYNC signal VSYNC 4 Fixing unit delivery stationary jam The CPU assesses a fixin...

Page 100: ...he presence of paper which can be automatically delivered out of the printer c The CPU assesses a residual paper jam if one of the following sensors detects the paper after the printer has performed an automatic delivery of the relevant paper after the power switch is turned ON and the fixing roller has reached the specified temperature 150 C Registration paper sensor PS1 Pick up unit paper sensor...

Page 101: ...hic co processor and has the following functions 1 DRAM control 2 ROM control 3 Video interface control 4 IEEE 1284 parallel port interface control 5 I O bus interface support c AIR IC2 The smoothing control circuit and SRAM are built in the AIR Its main functions are as follows 1 Image smoothing control 2 EEPROM control 3 Control panel interface control d DRAM 8 MB DRAM is installed on the video ...

Page 102: ...Figure 2 6 1 2 62 CHAPTER 2 J1 J4 J3 J2 ROM DIMM 0 ROM DIMM 1 ROM DIMM 2 J11 J10 IC27 EEPROM AIR IC2 J6 J7 IC10 DRAM 16M DRAM 16M ASIC IC15 CPU J8 J9 RAM DIMM 0 RAM DIMM 1 DRAM 16M DRAM 16M ...

Page 103: ... option controller 20pin to host computer 36pin to DC controller 48pin CHAPTER 2 EEPROM Option controller I F Engine RAM 8MB RAM DIMM LVCR2245 2 MA 10 0 nCAS 3 0 nWE MD 31 0 nRAS 7 0 nA8 VDO nA8 LSYNC VCLK Buffer IEEE1284 LVTH245 4 LVTH245 4 LVCR2245 2 LVCR2245 2 LVC827 2 MASK ROM 4MB Firm DIMM Extension I O Hard disk I O RESET nRESET nA0E nGCS nD0E AD 31 0 A 31 0 D 31 0 A 26 8 ROM Cont ROM Cont R...

Page 104: ......

Page 105: ...ion condition with the LED c Changes Menus and values with the switches 2 Operation The LCD and LEDs on the control panel are controlled by the signals output from the video con troller The signals generated by the switches on the panel are input to the video controller Figure 2 6 3 2 65 CHAPTER 2 nFP CLK J6 C13 J3 3 nFP CS J3 4 J3 5 J3 6 LEDs LCD CPU Switches IC10 Video controller PCB AIR nFP DI ...

Page 106: ...um Functions Turn ON the printer with the On Line and Enter keys pressed PPG Check Sum Or turn ON the printer with the On Lien and Reset keys pressed PS Check Sum The printer performs the check sum on the requested ROM bank The calculated check sum will be displayed in the LCD c Factory Reset Function A4 LTR To reset the paper size default to A4 turn ON the printer with the Menu Item and Shift key...

Page 107: ...e 10 Pressing the Shift key illuminates the top line of the LCD 20 columns Releasing the key will clear the display 11 Pressing the Plus Minus key displays OPERATION CHECK message Releasing the key will clear the message 12 When all the keys have been tested PANEL CHECK DONE message appears and the DISK STAPLE and CONTINUE LEDs keep flashing The message starts to move in circles in about 60 second...

Page 108: ...2 68 CHAPTER 2 ...

Page 109: ...CHAPTER 3 THE MECHANICAL SYSTEM I PREFACE 3 1 II EXTERNALS 3 2 III MAIN UNITS 3 8 IV MAIN PARTS 3 15 V SWITCHES SENSORS 3 24 VI CLUTCHS SOLENOIDS 3 31 VII MOTORS FANS 3 35 VIII PCBS 3 41 ...

Page 110: ......

Page 111: ...he toner cartridge as necessary When the cartridge is out of the printer put it in a protective bag to prevent light from affecting it 2 CAUTION Before servicing the printer disconnect its power cord from the electrical out let 3 Assembly is the reverse of disassembly unless otherwise specified 4 Note the lengths diameters and locations of screws as you remove them When reassem bling the printer b...

Page 112: ...9 Front cover 10 Delivery cover unit 11 Face up tray 12 Left lower cover 13 Left rear cover 14 Rear cover Figure 3 2 1 Follow the procedures below to remove the cover s as required when cleaning inspecting or repairing inside the printer The procedures for the covers which can be removed simply by removing screws without removing other parts are omitted 3 2 CHAPTER 3 11 13 14 12 ...

Page 113: ...3 2 2 2 Front cover 1 Remove the upper cassette 2 Open the upper cover 3 Open the duplexing unit door 4 Remove the 3 screws Duplexing unit door Screws Figure 3 2 3 5 Open the delivery cover unit and unhook the claw Delivery cover unit Claw Figure 3 2 4 6 Open the pick up unit door unhook the claw and then remove the front cover Pick up unit door Claw Front cover Figure 3 2 5 3 3 CHAPTER 3 ...

Page 114: ...y cover unit and then remove the 2 screws Screws Figure 3 2 7 4 Pulling the knob toward you lift the upper cover unit and disconnect the connector from the inside Knob Upper cover unit Figure 3 2 8 5 Unhook the 2 claws and then remove the control panel unit Claws Control panel unit Figure 3 2 9 3 4 CHAPTER 3 ...

Page 115: ... Delivery cover unit 1 Open the delivery cover unit 2 Remove the 2 rods that hold the delivery cover unit to the printer 3 Lifting up the delivery cover unit slight ly remove the right and then the left side of the unit Delivery cover unit Rods Figure 3 2 12 6 Multi purpose tray 1 Open the multi purpose tray 2 Unhook the 2 claws that hold the multi purpose tray to the printer and pull out the tray...

Page 116: ...om the inside and then remove the right cover unit Claws Right cover unit Figure 3 2 15 8 Left rear cover 1 Remove the rear cover 2 Open the delivery cover unit 3 Remove the 3 screws and then the left rear cover Screws Left rear cover Figure 3 2 16 9 Left lower cover 1 Remove the upper and lower cassettes 2 Remove the rear cover 3 Remove the left rear cover 4 Remove the delivery cover unit 5 Remov...

Page 117: ...ve the left lower cover Claws Left lower cover Figure 3 2 18 B Control Panel Unit 1 Remove the front cover 2 Unhook the 2 claws Lifting the control panel unit disconnect the connector from the inside Claws Control panel unit Figure 3 2 19 3 7 CHAPTER 3 ...

Page 118: ...r scanner unit Screws Laser scanner unit Figure 3 3 2 Note Do not disassemble the laser scan ner unit as it cannot be adjusted in the field B Drive Unit 1 Remove the pick up unit following steps 1 7 on Page 3 9 2 Remove the screw and then the cas sette stay Screw Cassette stay Figure 3 3 3 3 Disconnect the claw and then the clutch cover Claw Clutch cover Figure 3 3 4 3 8 CHAPTER 3 ...

Page 119: ...d lower cassettes 2 Perform steps 1 6 on Page 3 12 to remove the multi purpose tray pick up unit 3 Remove the right cover 4 Undo the connector and remove the cable from the cable guide Connector Cable Cable guide Figure 3 3 6 5 Perform steps 1 2 on Page 3 17 to remove the pick up feed and separation rollers 6 Remove the screw M3x10 7 Remove the 3 screws M3x8 and take out the pick up unit Screw M3 ...

Page 120: ...ts shown in figure 3 3 8 when exchanging to prevent noise The type of grease do not use grease other than the specified type and the method of applica tion is explained below Apply about one drop 1mm diameter of HY9 0007 to the contact surface a of the roller holder 1 and shaft 2 Apply a few drops total 5mm diameter of CK 8009 to 3 or more continuous cogs of the parts 3 to 9 Apply CK 8009 to the w...

Page 121: ... Roller holder Shaft 57T gear Upper lift up cam Pick up cam 100T gear 20T 41T gear Lower lift up cam 31T 47T gear Lifter Figure 3 3 8 3 11 CHAPTER 3 a a ...

Page 122: ...Figure 3 3 9 6 Remove the 4 screws and then the multi purpose tray pick up unit Screws Multi purpose tray pick up unit Figure 3 3 10 E Registration Roller Unit 1 Open the upper cover 2 Remove the clutch cover 3 Open the transfer charging roller guide Transfer charging roller guide Figure 3 3 11 4 Undo the connector 5 Remove the 4 screws and take out the registration roller unit Connector Screws Re...

Page 123: ...tor Screws Figure 3 3 13 6 Remove the 2 screws 7 Slightly lift the delivery unit up then pull it out toward you Screws Delivery unit Figure 3 3 14 G Fixing Unit 1 Open the delivery cover unit 2 Move the 2 fastening levers of the fixing unit in the direction of the arrow slight ly lift the fixing unit and pull it out toward you Fixing unit fastening levers Fixing unit Figure 3 3 15 3 13 CHAPTER 3 ...

Page 124: ...nit After power OFF wait for a while to allow the fixing unit to cool down H Feed Unit 1 Remove the registration roller unit fol lowing steps 1 5 on Page 3 12 2 Remove the transfer charging roller 3 Remove the fixing unit following steps 1 2 on Page 3 13 4 Remove the high voltage power supply unit following steps 1 2 on Page 3 47 5 Remove the screw Screw Figure 3 3 17 6 Disconnect the connector 7 ...

Page 125: ...i purpose tray pick up roller Separation pad Pick up Feed Separation rollers Registration lower roller Transfer charging roller Fixing roller heater Fixing upper roller Fixing lower roller Cleaning roller Figure 3 4 1 3 15 CHAPTER 3 ...

Page 126: ... the multi purpose tray pick up roller knob and pull out the roller Lifting plate Multi purpose tray pick up roller Figure 3 4 3 C Separation Pad 1 Open the multi purpose tray 2 Remove the cover 3 Remove the multi purpose tray pick up roller 4 Use a flat bladed screwdriver to remove the separation pad Separation pad Figure 3 4 4 3 16 CHAPTER 3 ...

Page 127: ...6 Note Be sure to replace the feed roller and the separation roller together E Registration Lower Roller 1 Remove the registration roller unit fol lowing steps 1 5 on Page 3 12 2 Remove the registration clutch 3 Remove the spring the E ring and the bushing Spring E ring Bushing Figure 3 4 7 4 Remove the gear the spring the E ring the bushing and then the registration lower roller Gear Spring E rin...

Page 128: ... 3 4 9 Notes for reassembly Hold the shaft and bushing not the sponge area of the transfer charging roller when installing the roller G Fixing Roller Heater 1 Remove the fixing unit following steps 1 2 on Page 3 13 2 Disconnect the 2 claws that hold the wire cover to the fixing unit and then remove the wire cover Claws Wire cover Figure 3 4 10 3 Unhook the claw and then remove the fixing entry gui...

Page 129: ...roller heater Figure 3 4 13 H Fixing Upper Roller 1 Remove the fixing unit following steps 1 2 on Page 3 13 2 Hold up the left and right levers in the direction of the arrow 3 Remove the 2 screws 4 Remove the claw then remove the sepa ration upper guide while pulling out the separation lower guide Fixing unit fastening levers Screws Claw Separation lower guide Separation upper guide Figure 3 4 14 ...

Page 130: ... 2 5 on Page 3 18 7 Remove the thermoswitch following step 3 on Page 3 25 8 Remove the thermistor following steps 3 4 on Page 3 26 9 Remove the screw and diode holder 10 Remove the screw and the right fixing cover Screw Diode holder Screw Right fixing rcover Figure 3 4 16 11 Remove the 2 screws M3 stepped screw and then the left fixing cover 12 Remove the 4 gears Screws M3 Stepped screw Left fixin...

Page 131: ...tay Figure 3 4 18 14 Remove the screw undo the 2 claws and take off the fixing roller cover Screw Claw Fixing roller cover Figure 3 4 19 15 Remove the grounding ring Grounding ring Figure 3 4 20 16 Remove the C ring and the gear C ring Gear Figure 3 4 21 3 21 CHAPTER 3 ...

Page 132: ...ring and the fixing upper roller C ring O ring Insulating bushing Bearing Fixing upper roller Figure 3 4 23 I Fixing Lower Roller 1 Remove the fixing unit following steps 1 2 on Page 3 13 2 Remove the fixing upper roller following steps 2 19 from Page 3 19 3 Remove the fixing lower roller Fixing lower roller Figure 3 4 24 3 22 CHAPTER 3 ...

Page 133: ...ing Roller 1 Remove the fixing unit following steps 1 2 on Page 3 13 2 Remove the fixing lower roller following steps 2 3 on Page 3 22 3 Remove the cleaning roller Cleaning roller Figure 3 4 25 3 23 CHAPTER 3 ...

Page 134: ...er cassette sensor 11 Lower cassette paper level sensor 1 12 Lower cassette paper level sensor 2 13 Upper cassette paper level sensor 1 14 Upper cassette paper level sensor 2 15 Lower cassette paper out sensor 16 Upper cassette paper out sensor 17 Multi purpose tray paper sensor 18 Lifting plate position sensor 19 Face down tray paper full sensor 20 Face down tray delivery sensor 21 Fixing unit de...

Page 135: ...owing steps 1 2 on Page 3 13 2 Remove the wire cover 3 Remove the 2 screws and then the lead wire and the thermoswitch Screws Thermoswitch Figure 3 5 2 C Door Switch 1 Remove the switch sensor PCB follow ing steps 1 10 on Page 3 45 3 25 CHAPTER 3 ...

Page 136: ...emove the wire cover 3 Remove the fixing entry guide 4 Disconnect the connector and remove the cable from the fixing left cover Connector Fixing left cover Cable Figure 3 5 3 5 Remove the screw and the thermistor Screw Thermistor Figure 3 5 4 Note on reassembly When installing the thermistor ensure that its detection surface is uniformly contact ing the fixing upper roller surface If it is not mak...

Page 137: ...ring has not deformed F Registration Paper Sensor 1 Remove the feed unit following steps 1 7 on Page 3 14 2 Disconnect the connector from the back of the feed unit and then remove the registration paper sensor 3 27 CHAPTER 3 ...

Page 138: ... Sensor unit Figure 3 5 5 3 Remove the pick up unit paper sensor from the sensor unit H Pick up Unit Door Sensor 1 Remove the pick up PCB following steps 1 3 on Page 3 44 2 Remove the 2 screws 3 Unhook the 2 claws and remove the gear cover Screws Claws Gear cover Figure 3 5 6 4 Disconnect the connector from the gear cover and remove the pick up unit door sensor 3 28 CHAPTER 3 ...

Page 139: ...tte Paper level Sensor 1 Upper Cassette Paper level Sensor 2 Lower Cassette Paper out Sensor Upper Cassette Paper out Sensor 1 Remove the pick up PCB following steps 1 3 on Page 3 44 J Multi purpose Tray Paper Sensor Lifting Plate Position Sensor 1 Remove the Multi purpose tray PCB fol lowing steps 1 7 on Page 3 44 3 29 CHAPTER 3 ...

Page 140: ...K Face down Tray Paper Full Sensor Face down Tray Delivery Sensor Fixing Unit Delivery Sensor 1 Remove the switch sensor PCB follow ing steps 1 11 on Page 3 45 3 30 CHAPTER 3 ...

Page 141: ...VI CLUTCHS SOLENOIDS A Locations Multi purpose tray pick up clutch Feed clutch Registration clutch Lifting plate solenoid Cassette pick up solenoid Face up solenoid Figure 3 6 1 3 31 CHAPTER 3 ...

Page 142: ...s Clucth cover unit Multi purpose tray pick up clutch Figure 3 6 2 C Feed Clutch 1 Remove the pick up unit following steps 1 7 on Page 3 9 2 Disconnect the connector 3 Remove the screw and disconnect the 2 claws to remove the pick up PCB Connector Screw Claws Pick up PCB Figure 3 6 3 4 Undo the claw and remove the clutch fixing plate 5 Remove the E ring and then the feed clutch Claw Clutch fixing ...

Page 143: ...d the registration clutch E ring Registration clutch Figure 3 6 5 E Lifting Plate Solenoid 1 Remove the multi purpose tray pick up unit following steps 1 6 on Page 3 12 2 Disconnect the connector 3 Remove the screw and then the lifting plate solenoid Connector Screw Lifting plate solenoid Figure 3 6 6 3 33 CHAPTER 3 ...

Page 144: ...w and take out the cas sette pick up solenoid Connector Screw Cassette pick up solenoid Figure 3 6 7 G Face up Solenoid Unit 1 Remove the delivery unit following steps 1 7 on Page 3 13 2 Disconnect the connector 3 Remove the screw and then the face up solenoid unit Connector Screw Face up solenoid unit Figure 3 6 8 3 34 CHAPTER 3 ...

Page 145: ...VII MOTORS FANS A Locations Main motor Pick up motor Fixing unit scanner unit fan Power supply fan Electrical unit fan Fixing unit fan Multi purpose tray pick up unit fan Figure 3 7 1 3 35 CHAPTER 3 ...

Page 146: ...e the 4 screws and then the main motor Connector Screws Main motor Figure 3 7 2 C Pick up Motor 1 Remove the pick up unit following steps 1 7 on Page 3 9 2 Undo the connector 3 Remove the 2 screws and slide the pick up motor out in the direction of the arrow Connector Screws Pick up motor Figure 3 7 3 3 36 CHAPTER 3 ...

Page 147: ... Electrical unit fan FM3 Intake fan for the video controller unit Fixing unit fan FM4 Blows air from the fixing unit vicinity Multi purpose tray pick up unit fan FM5 Blows air to the cartridge and laser scanner unit vicinity Figure 3 7 4 2 Fixing unit scanner unit fan 1 Remove the right rear and rear covers 2 Remove the upper cover unit 3 Disconnect the connector Connector Figure 3 7 5 4 Disconnec...

Page 148: ...Remove the 2 screws and then the fix ing unit scanner unit fan Screws Fixing unit scanner unit fan Figure 3 7 8 3 Power supply fan 1 Remove the right rear and rear covers 2 Disconnect the connector Connector Figure 3 7 9 3 Remove the 2 screws and then the power supply fan Screws Power supply fan Figure 3 7 10 3 38 CHAPTER 3 ...

Page 149: ...ctrical unit fan and pull out the fan Connector Claws Electrical unit fan Figure 3 7 11 5 Fixing unit fan 1 Remove the upper cover unit 2 Undo the connector 3 Remove the screw and then the fan grounding plate Disconnect the 4 claws to remove the fixing unit fan Connector Screw Fan grounding plate Claws Fixing unit fan Figure 3 7 12 3 39 CHAPTER 3 ...

Page 150: ...teps 1 6 on Page 3 12 2 Disconnect the connector 3 Remove the screw claw and then the fan duct together the multi purpose tray pick up unit fan 4 Remove the multi purpose tray pick up unit fan from the fan duct Connector Screw Claw Multi purpose tray pick up unit fan Figure 3 7 13 3 40 CHAPTER 3 ...

Page 151: ...ns DC controller PCB Pick up PCB Multi purpose tray PCB Switch sensor PCB High voltage power supply PCB Upper cassette paper size sensing PCB Lower cassette paper size sensing PCB Power supply Figure 3 8 1 3 41 CHAPTER 3 ...

Page 152: ...oller PCB 1 Remove the 2 screws Video controller PCB Screws Figure 3 8 3 2 Remove the 2 screws M3 and the guide 3 Remove the 1 screw M4 and the 4 screws M3 then take out the video controller PCB Screw M3 Guide Screws M4 Screws M3 Video controller PCB Figure 3 8 4 Note If you removed ROM DIMM or RAM DIMM when you repaced the video controller PCB reinstall it on the new video controller PCB 3 42 CHA...

Page 153: ...video con troller PCB note that the shape of the RAM DIMM cutout differs from that of the ROM DIMM cutout C DC Controller PCB 1 Remove the high voltage power supply unit following steps 1 3 on Page 3 47 2 Disconnect the 19 connectors from the DC controller PCB 3 Remove the 2 screws M3 and the 2 screws M4 4 Unhook the claw and then remove the DC controller PCB Connectors Screws M3 Screws M4 Claw DC...

Page 154: ...ay PCB 1 Remove the multi purpose tray pick up unit following steps 1 6 on Page 3 12 2 Remove the multi purpose tray pick up unit fan following steps 2 3 on Page 3 40 3 Remove the multi purpose tray pick up clutch following steps 2 3 on Page 3 32 4 Disconnect the 2 connectors Connector Figure 3 8 8 5 Remove the spring and then the lifting plate position detection arm Spring Lifting plate position ...

Page 155: ...itch Sensor PCB 1 Remove the upper cover unit 2 Remove the right rear and rear covers 3 Remove the left rear cover 4 Remove the connector the 2 screws and then the fan duct 5 Remove the 4 screws Connector Screws Fan duct Screws Figure 3 8 11 6 Remove the 3 screws and the shield cover Screws Shield cover Figure 3 8 12 3 45 CHAPTER 3 ...

Page 156: ... 9 Remove the 3 screws 10 Remove the claw and take out the DC controller mounting plate Screws Claw DC controller mounting plate Figure 3 8 14 11 Disconnect the connector remove the 2 screws and pull out the board Disconnect the other connector and remove the switch sensor PCB Connectors Screws Switch sensor PCB Figure 3 8 15 3 46 CHAPTER 3 ...

Page 157: ...ensing PCB 1 Remove the cassettes 2 Remove the power supply following steps 1 7 on Page 3 48 3 Disconnect the connector remove the screw then take out the cassette paper size sensing cover Connector Screw Cassette paper size sensing cover Figure 3 8 17 4 Disconnect the connector and remove the 3 screws from each PCB then take out the cassette size sensing PCBs Connectors Screws Upper cassette pape...

Page 158: ...Screws Fan duct Figure 3 8 19 3 Remove the connector 4 Take out the 5 screws Connector Screws Figure 3 8 20 5 Remove the 3 connectors Connectors Figure 3 8 21 6 Remove the 2 screws and the power supply unit fan 7 Remove the 2 screws and take off the power supply unit Screws Power supply fan Screws Power supply Figure 3 8 22 3 48 CHAPTER 3 ...

Page 159: ... 8 III PAPER JAMS TROUBLESHOOTING 4 14 IV PAPER TRANSPORT TROUBLESHOOTING 4 18 V MALFUNCTION TROUBLESHOOTING 4 20 VI MALFUNCTION STATUS TROUBLESHOOTING 4 21 VII MEASUREMENT AND ADJUSTMENT 4 28 VIII MAINTENANCE AND SERVICING 4 35 IX LOCATION OF CONNECTORS 4 48 ...

Page 160: ......

Page 161: ...to the malfunction diagnosis flowchart and to clear the problem following the action procedure for each malfunction Make sure the following points at the execution of troubleshooting Be sure that the connector has no poor contact when measuring the voltage at the specified terminal of the connector Before handling PCBs be sure to touch a metal part of the printer to discharge static elec tricity a...

Page 162: ...ly Occurs image defect Note 2 Refer to the item image defects Refer to the item malfunction status troubleshooting END Displays operator call or service call Refer to the item malfunction status troubleshooting Refer to the item malfunction troubleshooting Refer to the item paper transport troubleshooting No No Yes Yes Yes No No Yes No Yes Yes No Displays operator call or service call No Yes ...

Page 163: ...If the information is not available make test prints with all feasible combination of paper source and delivery source in the printer and find out the factor 2 The image defect occurred at the user side might not re occur on its test print In this case make a print from external device and infer the factor by the output image Then find the factor according to the item image defects 4 3 CHAPTER 4 ...

Page 164: ...d b The paper is not damp 3 Paper sets a The paper is set to the pick up source within the specified volume b The paper is set to the selected pick up source correctly c The cassette is installed in the printer correctly 4 EP 72 cartridge sets The cartridge is installed in the printer correctly 5 Condensation During winter particularly when moving the printer into a warm room from a cold location ...

Page 165: ...river tester which can make all four test patterns vertical lines horizon tal lines solid black and solid white or the test print switch located on the right side of the printer see Figure 1 4 1 One print of test pattern can be made by pressing the switch once when the power is turned ON and the READY appears on the display If the switch is held down test prints are made continuously Make sure tha...

Page 166: ...PCL demonstration page CONTINUOUS TEST Make continuous Test Prints STAPLE TEST Available only when the staple stacker SS 72 is installed Use STAPLE TEST when you replaced the staple cartridge CLEANING PAGE Use CLEANING PAGE to print cleaning patterns to clean the fixing unit when an image defect occurred and its cause is suspected to be the fixing unit Refer to Maintenance and ser vicing by the cu...

Page 167: ... SWITCH ON MANUAL OFF MPTSIZE A4 CONFIG MENU JAMRECOVERY ON AUTOCONT OFF DENSITY 7 PWRSAV 15 MIN ECONOMY MODE OFF REFINE ON MEMCONFIG MENU PCL SAVE OFF PARALLEL MENU BIDIRECTION ON I O TIMEOUT 15 TEST MENU SHOW PAGE COUNT TEST PRINT PRINT PCL FONTS PRINT PCL DEMO CONTINUOUS TEST LANGUAGE MENU LANG ENGLISH PAPER TYPE MENU UPPER PLAIN LOWER PLAIN MPT PLAIN RESET MENU PRINTER RESET PRINTER RESET MENU...

Page 168: ...tion Output distorted image II 1 Light Possible causes 1 The image density is not adjusted correctly Action Adjust the image density by operating the external device 2 Open the upper cover and remove the EP 72 cartridge while a print is being made Open the drum protective shield of the EP 72 cartridge and check the toner image on the photosensi tive drum If the toner image has not been transferred...

Page 169: ...The projection for opening and closing the laser shutter of the EP 72 cartridge is damaged Action Replace the cartridge 2 The laser shutter arm or laser shutter is malfunctioning or damaged Action If the laser shutter arm or laser shutter does not move smoothly or parts are dam aged replace them 3 The developing bias contact of the high voltage power supply is not making a good connec tion with th...

Page 170: ...he transfer charging roller 4 The high voltage power supply PCB is defective Action Replace the high voltage power supply PCB 5 The DC controller PCB is defective Action Replace the DC controller PCB II 6 Dirt on back of paper Possible causes 1 Dirty paper Action Replace the paper with new one Advise the customer on how to store paper 2 Periodical stain pick up roller transfer charging roller lowe...

Page 171: ... 1 Lack of toner Action Remove the cartridge from the printer Rock the cartridge in the way described in the chapter 1 and then install it back in the printer If the problem persists replace the cartridge 2 The transfer charging roller is dirty or deformed Action Replace the transfer charging roller 3 Defective photosensitive drum or developing cylinder Action Replace the cartridge II 11 White ver...

Page 172: ...n the lever 2 The nip width of the fixing unit is not correct Action Replace the fixing unit 3 The fixing roller surface is damaged or dented Action Replace the roller 4 The lower fixing roller is dirty Action Clean the roller If it cannot be cleaned replace the roller 5 The thermistor has deteriorated Action Replace the thermistor II 14 Image distortion Possible causes 1 Connectors on the DC cont...

Page 173: ...eed roller Separation roller Photosensitive drum Developing cylinder Primary charging roller Period on image mm Blank spot Dirt on back of paper 17 15 45 32 24 24 24 30 20 14 Poor fixing Problem location About 54 About 141 About 100 About 75 About 75 About 75 About 94 About 52 About 44 Periods of appearance of dirt blank spots on images ...

Page 174: ...tray pick up block III 2 Cassette pick up block III 3 Transfer and feed block III 4 Fixing and delivery block If the factor of the malfunction is identified as paper jams by the malfunction diagnosis flow chart Figure 4 1 1 check the block in which the paper jam occurred and find out the defec tive part 4 14 CHAPTER 4 ...

Page 175: ...purpose tray pick up clutch 6 The multi purpose tray PCB is defective Action Replace the multi purpose tray PCB 7 The DC controller PCB is defective Action Replace the DC controller PCB III 2 Cassette pick up block Possible causes 1 The print paper is bent Action Replace the paper 2 The cassette pick up roller separation roller or feed roller is worn or deformed Action Replace if worn or deformed ...

Page 176: ...e between con nector J17 1 and J17 2 on the cable side If it is not about 210Ω replace the reg istration clutch 6 The DC controller PCB is defective Action Replace the DC controller PCB III 4 Fixing and delivery block Possible causes 1 Paper longer than the paper length set by the user was loaded during manual feeding Action Advise the user to replace it with the set paper size 2 The fixing roller...

Page 177: ...ler is worn Action Replace the fixing unit delivery roller 10 The fixing unit delivery roller does not rotate smoothly Action Check the gears and replace any worn or fractured gear s 11 The face down delivery roller does not rotate smoothly Action Check the gears and replace any worn or fractured gear s 12 Defective fixing unit delivery sensor Action Replace the sensor 4 17 CHAPTER 4 ...

Page 178: ... Action Replace the spring of the separation pad IV 2 Wrinkles folded leading edge Possible causes 1 Curled paper Action A devise the user to straighten the paper 2 After executing a test print open the top cover before the paper enters the fixing unit If the paper is wrinkled at this point go to step 6 3 The fixing entry guide is dirty Action Clean the guide 4 The lower fixing roller is dirty Act...

Page 179: ...2 The spring of the registration roller unit is out of place Action If the spring is out of place set it in the right position or replace it with new one 4 19 CHAPTER 4 ...

Page 180: ...ng a multimeter 4 The power supply is defective Action Replace the power supply V 2 No DC Power Input Possible causes 1 The AC power is not present Action Make a check using the steps of E 1 No AC Power Input 2 The overcurrent overvoltage detection circuit is active Action If the problem is not rectified when the power switch is turned OFF and ON again find the cause of activation of the overcurre...

Page 181: ... unit connector J50B 5 FSRTH and J50B 4 GNDTH If the resistance is not between about 190kΩ and 290kΩ room temperature of 25 C check the wiring from connector J222 on the DC controller PCB to the thermistor If it is nor mal replace the thermistor 5 The main heater wire is broken Action Remove the fixing unit If there is no continuity between the fixing unit connector J50 3 FSRN1 the upper right ter...

Page 182: ...e Action Replace the fixing unit 2 The type detection circuit in the power supply is defective Action Replace the power supply 3 The DC controller PCB is defective Action Replace the DC controller PCB VI 4 11 1 ERROR SCANNER CALL FOR SERVICE Scanner motor malfunction 11 2 ERROR SCANNER CALL FOR SERVICE Scanner motor malfunction Possible causes 1 The scanner motor drive line connectors are loose Ac...

Page 183: ...3 The main motor is defective Action Use the printer driver tester to rotate the main motor If it does not rotate replace it 4 The DC controller PCB is defective Action Replace the DC controller PCB VI 7 13 1 ERROR FAM 1 CALL FOR SERVICE Electrical unit fan FM3 failure Possible causes 1 The FM3 drive signal line connector is loose Action Reconnect connector J210 on the DC controller PCB and connec...

Page 184: ...ng unit fan FM4 failure Possible causes 1 The FM4 drive signal line connector is loose Action Reconnect connector J225 on the DC controller PCB and connectors J25 and J26 2 The fixing unit fan is defective Action Disconnect connector J225 on the DC controller PCB Turn the power switch ON and measure the voltage between connector J225 1 FAN4D and J225 3 GND on the DC controller PCB If the voltage c...

Page 185: ...SSING message appears when it is installed Possible causes 1 The developing bias contact of the high voltage power supply is not making a good connec tion with the cartridge contact Action If the contacts are dirty clean them If the problem continues after cleaning or parts are deformed or damaged replace them 2 Defective cartridge Action Replace the cartridge 3 The high voltage power supply PCB i...

Page 186: ...out 160Ω replace the cassette pick up solenoid 7 The pick up PCB is defective Action Replace the pick up PCB 8 The DC controller PCB is defective Action Replace the DC controller PCB VI 16 PAPER JAM message appears when the paper jam has not occurred and the printer cannot be in READY mode Possible causes 1 Registration paper sensor lever does not move smoothly or is damaged Action Adjust the leve...

Page 187: ...on Using the printer driver tester check the condition of the sensor If the LED of the tester does not light up when the pick up unit door is opened replace the sensor 5 Interlock arm does not move smoothly or is damaged Action Adjust the arm so that it moves smoothly Replace it if damaged 6 Connector is loose Action Reconnect connector J1401 on the switch sensor PCB and connectors J205 and J221 o...

Page 188: ...of the cassette When the side registration of the cassette is not aligned this adjustment needs to be made The side registration adjustment levers see Figure 4 7 2 in the upper and lower cassettes are adjusted in the factory Therefore there is no need to make any adjustments when installing the printer However when either upper or lower cassette is replaced in the field re adjustment of the left m...

Page 189: ...7 2 B Electrical Adjustment No electrical adjustment for this printer 4 29 CHAPTER 4 Leading edge of paper a The value of a drops by 0 5mm for each notch moved The value of a rises by 0 5mm for each notch moved ...

Page 190: ...equire special tools measuring instruments and high preci sion Do not touch them in the field Notes 1 Some LEDs receive leakage current during normal operation thus glow dimly even when they should be OFF 2 Variable resistor which may be adjusted in the field are marked Variable resistor which may not be adjusted in the field are marked 1 DC controller PCB Figure 4 7 3 4 30 CHAPTER 4 J212 LED201 J...

Page 191: ...he printer driver tester Refer to the operating manual of the printer driver tester for details 2 Switch sensor PCB Figure 4 7 4 Table 4 7 2 4 31 CHAPTER 4 Test print switch Sensor check Note SW No SW201 LED201 Function Door switch SW No SW1401 Function J1402 2 1 SW1401 3 1 2 4 J1401 1 14 ...

Page 192: ...Cassette paper size detection PCB Figure 4 7 5 Table 4 7 3 4 32 CHAPTER 4 J1601 5 1 SW1604 SW1603 SW1602 SW1601 Cassette paper size sensing switch See page 2 47 SW No SW1601 SW1602 SW1603 SW1604 Function ...

Page 193: ...4 High voltage power supply PCB Figure 4 7 6 Table 4 7 4 4 33 CHAPTER 4 VR701 B12 A12 6 J701 VR702 A1 B1 TB703 TB702 TB701 TB704 T704 5 2 1 7 TB706 TB705 For factory use VR No VR701 VR702 Function ...

Page 194: ...This page intentionally left blank 4 34 CHAPTER 4 ...

Page 195: ...nge 2 2 pages are counted as 1 print in case of duplexing Expected life of the fixing unit is 350 000 pages when it is used only in the normal mode C Periodic Service The printer has no parts that require periodic servicing 4 35 CHAPTER 4 Part No Remarks 1 2 3 4 5 6 7 8 9 10 Multi purpose tray pick up roller Separation pad Fixing unit Transfer charging roller Feed roller and separation roller Powe...

Page 196: ...lcohol 3 Separation pad Clean with lint free paper 4 Registration roller unit Clean with lint free paper If badly contaminated use it with ethyl isopropyl alcohol for rubber parts and MEK methyl ethyl ketone for other parts Avoid skew or paper jams caused by removal of the springs 5 Transfer guide unit Clean with soft dry flannel cloth 6 Static charge eliminator Clean with brush 7 Feed guide unit ...

Page 197: ...ration roller unit 2 Fixing separation claw 8 Separation pad 3 Fixing entry guide 9 Multi purpose tray pick up roller 4 Feed guide 10 Feed roller 5 Transfer charging roller 11 Separation roller 6 Transfer guide 12 Pick up roller 4 37 CHAPTER 4 12 11 ...

Page 198: ...ers Crimper Tweezers Ruler Soldering iron Mallet plastic head Brush Penlight Plastic bottle Solder Desoldering wick Lint free paper Soldering iron Oiler Plastic jar Digital multimeter No Tool name TKN 0001 TKN 0069 CK 0057 CK 0058 CK 0101 CK 0104 CK 0105 CK 0106 CK 0111 CK 0114 CK 0151 CK 0161 CK 0170 CK 0201 CK 0202 CK 0203 CK 0205 CK 0218 CK 0302 CK 0303 CK 0309 CK 0314 CK 0315 CK 0327 CK 0328 C...

Page 199: ...the workshop These tools include the tools used for PCB and unit repairs 4 39 CHAPTER 4 Tool No Application remarks 1 Printer driver tester No Tool name RY9 0104 Used for checking printer operations Shape RANK B DAT A DAT A SET bit 16 bit 15 bit 14 bit 13 bit 12 bit 11 bit 10 bit 9 bit 8 bit 7 bit 6 bit 5 bit 4 bit 3 bit 2 bit 1 DC2 4V bit 2 1 0 bit 3 1 0 bit 4 1 0 bit 5 1 0 bit 6 1 0 bit 7 1 0 bi...

Page 200: ...ious solenoids and motors c In the event of a printer failure the error information sent from the printer to the video con troller external device can be displayed on the tester LED Note This manual covers the basic operation of the printer driver tester For more defailed explanation please refer to the operation manual attached to the tester 4 40 CHAPTER 4 DATA DATA SET bit 16 bit 15 bit 14 bit 1...

Page 201: ...to display the status of the various sensors and loads sent from the printer with the DATA LED SET UP Mode to set data with the DATA SET switches DATA SET switch Sets the various data sent to the printer See in table 4 8 4 ENTER switch Inputs data set by the DATA SET switches 4 41 CHAPTER 4 DATA DATA SET bit 16 bit 15 bit 14 bit 13 bit 12 bit 11 bit 10 bit 9 bit 8 bit 7 bit 6 bit 5 bit 4 bit 3 bit...

Page 202: ...rt system electrical parts status Sensor status 3 72X Motor status Print density select Ready inhibit forced laser emission WX sleep setting Multi purpose tray paper size select Test print paper pick up delivery slot allocation pattern setting Paper transport system electrical parts drive 1 Paper transport system electrical parts drive 2 Paper transport system electrical parts drive 3 DISPLAY SET ...

Page 203: ...cause operation fail ures Therefore when connecting the tester be sure to touch a metal part of the print er with your hand to discharge any electrostatic energy 4 43 CHAPTER 4 DATA DATA SET bit 16 bit 15 bit 14 bit 13 bit 12 bit 11 bit 10 bit 9 bit 8 bit 7 bit 6 bit 5 bit 4 bit 3 bit 2 bit 1 DC24V bit 2 1 0 bit 3 1 0 bit 4 1 0 bit 5 1 0 bit 6 1 0 bit 7 1 0 bit 8 1 0 ENTER TEST PRINT MODE SELECT O...

Page 204: ...it 12 bit 11 bit 10 bit 9 bit 8 bit 7 bit 6 bit 5 bit 4 bit 3 bit 2 bit 1 DC24V bit 2 1 0 bit 3 1 0 bit 4 1 0 bit 5 1 0 bit 6 1 0 bit 7 1 0 bit 8 1 0 ENTER TEST PRINT MODE SELECT ON OFF 1 DISPLAY SET UP 2 3 4 5 6 7 8 9 10 11 CANON INC MADE IN JAPAN RY9 0104 PRINTER DRIVER bit 1 1 0 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 8 7 6 5 4 3 2 1 Fixing unit malfunction BD malfunction Laser malfunction Main ...

Page 205: ...to 0 and bit 1 to 1 see Table 4 8 7 4 Press the ENTER switch 5 By turning the TEST PRINT switch ON once a test print can be made Figure 4 8 6 Notes 1 After setting a test print in this mode the data will remain the same even if the test print is set in another mode 2 By keeping the TEST PRINT switch ON continuous test prints will be made 3 When setting the image pattern to All black do not make du...

Page 206: ...k up Face down tray delivery Face up tray delivery Single side print Duplex print Vertical lines Horizontal lines All white All black bit 8 0 0 0 0 bit 7 0 0 1 1 bit 6 0 1 0 1 bit 5 0 0 bit 4 0 1 bit 3 0 1 bit 2 0 0 1 1 bit 1 0 1 0 1 Print mode Pick up slot Delivery slot Image pattern bit Mode select 8 16 2 1 8 7 6 5 4 3 2 1 Lights when the upper cassette pick up function is ready in the printer L...

Page 207: ...tains Purchase locally Highly flammable keep away from flame Lubricating oil Petroleum mineral oil Apply between gear and shaft Tool No CK 8003 100 ml bottle Lubricating agent Special oil Special solid lubricating material Lithium soap Apply to gears Tool No HY9 0007 20 g tube 3 4 Lubricating agent Lithium oil Apply to gears of the pick up unit 5 Lubricating agent Apply to gears of the pick up uni...

Page 208: ... 4 9 1 4 48 CHAPTER 4 J1001 J1 J18 J1601A J1601B J12 J1401 J202 J206 J205 J203 J208 J215 J210 J218 J216 J221 J25 J225 J209 J219 J14 J15 J16 J17 J13 J1204 J1203 J1205 J1202 J1201 J1206 J14 J12 J13 J26 J1402 J207 J6 J11 J34 J35 J229 J3 ...

Page 209: ...Figure 4 9 2 4 49 CHAPTER 4 J56 J51 J50 J54 J55 J19 J10 J24 J204 J213 J214 J222 J1302 J1304 J1303 J1301 J102 J217 ...

Page 210: ...4 50 CHAPTER 4 ...

Page 211: ...APPENDIX I GENERAL TIMING CHART A 1 II GENERAL CIRCUIT DIAGRAM A 3 III LIST OF SIGNALS A 5 IV MESSAGES TABLE A 11 ...

Page 212: ......

Page 213: ...p motor SMT1 Feed clutch CL2 Registration clutch CL1 Pick up unit paper sensor PS2 Registration paper sensor PS1 Fixing unit delivery sensor PS1403 Face down tray delivery sensor PS1402 Primary voltage AC Primary voltage DC Developing bias AC Developing bias DC Transfer voltage Static charge eliminator bias Upper fixing roller bias Operation Power switch ON High speed rotation Low speed rotation 1...

Page 214: ......

Page 215: ...S FDOUTS FUSLD P5VB1 J1401 SW1401 PS1403 PS1402 PS1401 J19 8 7 6 5 4 3 2 1 8 7 6 5 4 3 2 1 24VGND 24VGND DUPCLK DUPCMD DUPSTS DUPIDS 24VA 24VA J228 SL3 FUSLD 24VA J1402 SL 1 2 3 4 5 6 7 8 9 1 2 3 4 5 6 7 8 9 1 2 3 4 5 6 7 8 9 1 2 3 4 5 6 7 8 9 1 2 3 4 5 6 1 2 3 4 5 6 7 FAN5D FAN5S 24VGND 24VGND FAN5 1 2 3 4 1 2 3 3 2 1 3 2 1 1 2 3 4 5 6 1 2 3 4 5 6 7 8 9 10 1 2 3 4 1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 ...

Page 216: ... A26 A27 A28 A29 A30 A31 A32 A33 A34 A35 A36 B1 B2 B3 B4 B5 B6 B7 B8 B9 B10 B11 B12 B13 B14 B15 B16 B17 B18 B19 B20 B21 B22 B23 B24 B25 B26 B27 B28 B29 B30 B31 B32 B33 B34 B35 B36 To host computer J9 GND GND GND GND GND GND GND GND GND GND GND GND nINIT nFAULT N C N C N C nSELIN nSTROBE D0 D1 D2 D3 D4 D5 D6 D7 nACK BUSY PERROR SELECT nAUTOFD N C GND GND PP 5V 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16...

Page 217: ... signal B4 Reserved B5 RDY O L READY signal B6 CPRDY I L CONTROLLER POWER READY signal B7 SBSY O L STATUS BUSY signal B8 CBSY I L COMMAND BUSY signal B9 PRFD I L PRE FEED signal B10 PFED O L PAPER FEED signal B11 3 3V O B12 3 3V O B13 5V O B14 5V O B15 GND B16 GND C1 VDO I H VIDEO signal C2 VDO I L VIDEO signal C3 FPI I L OPERATION PANEL SERIAL INPUT signal C4 FPCK I P OPERATION PANEL SERIAL CLOCK...

Page 218: ...PANEL CONTROLLER CHIP SELECT signal 4 FPCK I P OPERATION PANEL SERIAL CLOCK signal 5 5V O 6 5V O 7 GND J204 A1 5V I A2 5V I A3 GND A4 GND A5 24V I B1 3 3V I B2 3 3V I B3 GND B4 24VGND B5 24VGND J205 1 GND 2 GND 3 24VA O 4 24VA O 5 24VA O 6 UDOORS I H UPPER DOOR OPEN SENSE signal 7 FDFULS I H FACE DOWN TRAY PAPER FULL SENSE signal 8 FPOUTS I H FIXING UNIT DELIVERY SENSE signal 9 FDOUTS I H FACE DOW...

Page 219: ... signal 7 SVOUT O SERVICE COMMAND signal 8 24VA O J213 1 24VA O 2 24VA O 3 DUPIDS I L DUPLEXING UNIT SENSE signal 4 DUPSTS I L DUPLEXING UNIT STATUS signal 5 DUPCMD O H DUPLEXING UNIT COMMAND signal 6 DUPCLK O P STATAS CLOCK signal 7 24VGND 8 24VGND J214 1 24VGND 2 24VA O 3 P5VB1 O 4 MPTCLD O L MANUAL FEED CLUTCH DRIVE signal 5 MPTSLD O L LIFTING PLATE SOLENOID DRIVE signal 6 MPTLS I H LIFTING PLA...

Page 220: ...MT24 O L 24V DRIVE signal 14 N C J218 1 MMRDY I L MAIN MOTOR READY signal 2 MMOTD O L MAIN MOTOR DRIVE signal 3 24VGND 4 24VGND 5 24VB O 6 24VB O J219 1 FEDAND O PICK UP MOTOR CONTROL signal 2 FEDAD O PICK UP MOTOR CONTROL signal 3 FEDBND O PICK UP MOTOR CONTROL signal 4 FEDBD O PICK UP MOTOR CONTROL signal 5 UDECKS I L UPPER CASSETTE PAPER OUT SENSE signal 6 UDECKC I H UPPER CASSETTE SENSE signal...

Page 221: ...OLLER BIAS DRIVE signal B3 DCHGBD O L DISCHARGE BIAS DRIVE signal B4 DCHGUP O L DISCHARGE BIAS SWITCH signal B5 N C B6 N C B7 PRIACCLK O P PRIMARY AC BIAS FREQVENCY OUTPUT signal B8 PRIACD O L PRIMARY AC BIAS DRIVE signal B9 PRIDCD I L PRIMARY DC BIAS DRIVE signal B10 DENADJ O ANALOG IMAGE DENSITY AD JUSTMENT signal B11 24VGND B12 24VB O J221 1 24VB I 2 24VB I 3 24VB I J222 1 TSWOUT 2 FSRTH I ANAL...

Page 222: ...A 10 APPENDIX This page intentionally left blank ...

Page 223: ...rification prompt This message will appear momentarily and then PAUSED When a menu item was changed before the printer releases the port on which the last job was processed such as in the middle of a job or before the port timed out RESET TO SAVE doesn t display or take effect for the following menu items Parallel menu bidirectional on off Config menu density pwrsav paper type menu upper lower dec...

Page 224: ...tion has completed The system will No action required No action required The job will resume after 10 sec onds if AUTOCONT is ON Otherwise press the Continue key to resume printing Check the page that ejects since the page could not be processed as requested Also simplify the job or add additional memory No action required Press to format the disk or press to ignore the disk For new unformatted di...

Page 225: ...when this message is dis played Error causes by flash format failure read or write failure Delete pcl ps fonts macros files or format the disk to clear the message The message doesn t clear with power cycle or COLD RESET This message has lower priority than printer error mes sages such as toner low or memory overflow Delete pcl ps fonts macros files or format the disk to clear the message The mess...

Page 226: ...f 2x500 deck DECK2 Lower cassette of 2x500 deck MPT Multi purpose tray ENV Envelope feeder ANY TRAY any paper tray that can support Letter Legal B4 or A4 the flash fails FLASH ERROR will be displayed Remove the faulty flash rom and replace with new flash Press to accept confirm the mode change in the sorter or press to cancel the mode change Replace the toner cartridge as soon as possible The prin...

Page 227: ...be sta pled The upper cassette is repositioning the stack after new paper was loaded The lower cassette is repositioning the stack after new paper was loaded The paper tray in the 2 000 sheet deck is repo sitioning the stack after new paper was loaded The upper cassette in the 2x500 sheet deck is repositioning the stack after new paper was loaded The lower cassette in the 2x500 sheet deck is repos...

Page 228: ...size has been found in the same tray A paper jam occurred near the input tray A paper jam occurred near the front cover A paper jam occurred near the left cover A paper jam occurred near the right cover A paper jam occurred near the top cover Paper jam has occurred somewhere in the paper path Paper jam has occurred in the input paper path Paper jam has occurred in the input paper path Paper jam ha...

Page 229: ...Paper jam has occurred in the right cover Paper jam has occurred in the right cover Paper jam has occurred in the right cover Paper jam has occurred in the right cover A paper jam occurred near the input tray A paper jam occurred near the top cover A paper jam occurred at the stapler stacker output bins Jam at entrance sensor Initial Jam Jam at entrance sensor Stay Jam Jam at entrance sensor Delay...

Page 230: ...nger properly seated Option controller error with 2 000 sheet deck or 2x500 sheet deck There is a problem with the Options Controller Cable s are not connected in or there is a problem with the Options Controller Hard Drive Failure Read Error GRS has been unable to allocate the memory it needs Option PS ROM DIMM diagnostic error The Ethernet boad is not communicating with the controller The Token ...

Page 231: ... CALL FOR SERVICE 16 ERROR CALL FOR SERVICE 16 1 ERROR STACKER Scanner motor malfunction start up Scanner motor malfunction rotation BD Laser malfunction BD Laser malfunction Main motor malfunction start up Main motor malfunction rotation Fan motor 1 failure controller Fan motor 2 failure power supply Fan motor 3 failure exhaust1 Fan motor 4 failure exhaust2 Fan motor 5 failure multiple Lifting pl...

Page 232: ...heet deck or 2x500 sheet deck lifter Malfunction of face down deflector solenoid 1 Malfunction of face down deflector solenoid 2 Hard drive failure Write error Hard drive failure Read failure The AIR Chip has failed This is the control panel diagnostic mode Displays under TEST when SHOW PAGE COUNT is selected is number of pages Displays during a panel check function Displays when panel check funct...

Page 233: ...red by PERIPHERAL PRODUCTS QUALITY ADVANCEMENT DIV PERIPHERAL PRODUCTS TECHNICAL DOCUMENTATION DEPT CANON INC Printed in Japan REVISION 0 JAN 1999 5 1 Hakusan 7 chome Toride City Ibaraki Pref 302 8501 Japan ...

Page 234: ...PRINTED IN JAPAN IMPRIME AU JAPON 0199AT0 70 CANON INC The printing paper contains 70 waste paper ...

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