Ricoh fax4700l Service Manual Download

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5.4. LASER PRINTING COMPONENTS

5.4.1. Laser Unit

First, remove the clip [A] and disconnect harnesses [B], [C], and [D], then
remove the Laser Unit [E].

[B]

[A]

[C]

[E]

[D]

H515R619.wmf

E: Laser Unit (1 clip, 3 connectors, 4 positioning pins)

REPLACEMENT AND ADJUSTMENT

December 21st, 1995

LASER PRINTING COMPONENTS

5-12

Summary of Contents for fax4700l

Page 1: ...FX4 RICOH FAX4700L SERVICE MANUAL December 21st 1995 Subject to change...

Page 2: ...ALONG THE LASER BEAM PATH WHILE THE MAIN POWER IS ON Lithium Batteries Memory Back up ICAUTION The danger of explosion exists if a battery of this type is incorrectly replaced Replace only with the s...

Page 3: ...IDEO DATA PATH 1 16 1 5 1 Transmission PSTN 1 16 1 5 2 Reception PSTN 1 17 1 5 3 Transmission ISDN 1 18 1 5 4 Reception ISDN 1 19 1 5 5 Copying 1 20 1 5 6 Printing from the Optional Printer Interface...

Page 4: ...8 4 Print Density Adjustment 2 19 5 Toner Saving Mode 2 19 2 2 5 Toner Supply 2 20 2 2 6 Development 2 23 2 2 7 Paper Feed 2 28 1 Overview 2 28 2 Paper Lift Mechanism 2 29 3 Paper Size and Paper End D...

Page 5: ...MB Hard Disk 3 2 3 3 2 ISDN G4 Interface 3 4 3 3 3 Fax on Demand 3 6 3 3 4 Counter 3 7 3 3 5 Printer Interface 3 8 3 3 6 Important Notice for the Function Upgrade Card and Fax On Demand Card 3 10 4 SE...

Page 6: ...4 20 4 1 25 Serial Number Function 14 4 21 4 1 26 Hard Disk Initialization Function 16 4 21 4 1 27 Hard Disk Formatting Function 16 4 22 4 1 28 Hard Disk Test Function 16 4 22 4 1 29 G4 Parameter Prog...

Page 7: ...5 17 5 6 FUSING 5 20 5 6 1 Thermistor 5 20 5 6 2 Fusing Unit 5 20 5 6 3 Hot Roller Strippers 5 22 5 6 4 Fusing Lamp 5 22 5 6 5 Hot Roller 5 23 5 6 6 Pressure Roller 5 25 5 6 7 Thermostat and Thermofus...

Page 8: ...ack Lines 6 6 6 1 6 Horizontal Black Lines 6 7 6 1 7 Vertical White Lines 6 8 6 1 8 Horizontal White Lines 6 9 6 1 9 Black Dots Spots 6 10 6 1 10 White Spots in Black Image Areas 6 11 6 1 11 Faint Cop...

Page 9: ...6 3 SERVICE CALL CONDITIONS 6 26 6 4 ERROR CODES 6 30 6 5 ELECTRICAL COMPONENT DEFECTS 6 38 6 5 1 Defective Sensor Table 6 38 6 5 2 Fuses 6 39...

Page 10: ...ECM 128 kbytes SAF Standard 1 Mbytes 73 pages With 2 Mbyte option 219 pages With 4 Mbyte option 365 pages With 80 Mbyte HDD option 1200 pages With 80 Mbyte HDD plus Function Up grade Card 3000 pages...

Page 11: ...s Excluding handset trays and optional units Weight Approx 19 kg 50 9 lbs Excluding CTM handset trays and optional units 1 2 FEATURES 1 2 1 Features List KEY O Used X Not Used A With optional memory 2...

Page 12: ...h Reduction X Memory transmission O Multi step Transfer A or B Next Transfer Station X OMR O Communication Features User Selectable On Hook Dial O Ordering Toner X Page Count O Page separation mark O...

Page 13: ...r B Multicopy mode O Own telephone number O Other User Features Energy Saver Night Timer and standby mode O Print density control O Printing a memory file O RDS on off O Reception Mode Switching Timer...

Page 14: ...am alarm O File Transfer O Hard Disk Utilities Format etc B LCD contrast adjustment O Line error mark O Memory file printout all files O Modem test O NCU parameters O Operation panel test O Periodic s...

Page 15: ...Group 200 200 Maximum number of destinations dialed from the ten key pad overall 100 1000 Maximum number of programs 64 programmed in 64 Quick Dial keys 164 programmed in 64 Quick Dial keys plus 100...

Page 16: ...ndicates that the two items of optional equipment cannot be installed at the same time IC Cards A B C D E A Feature Expander 2M 4M X 4 B Feature Expander 80M HDD X 4 4 C Function Upgrade Card 4 X X D...

Page 17: ...sists of the toner cartridge cleaning unit used toner tank charge corona unit and quenching lamp 9 Hot Roller Heat from this roller fuses the toner to the copy paper 10 Hot Roller Strippers These take...

Page 18: ...tion roller toner supply bar and transfer roller 17 Paper Feed Rollers These pick up the top sheet of paper from the stack in the cassette and feed it into the printer 18 Cassette Standard This holds...

Page 19: ...Electrical Components 5 3 7 4 6 2 8 9 10 11 14 13 12 1 15 16 17 18 19 20 21 22 23 24 H515V003 wmf 27 30 29 28 26 31 32 33 25 H515V004 wmf OVERALL MACHINE INFORMATION December 21st 1995 COMPONENT LAYOU...

Page 20: ...laser diode 32 Power Pack This supplies high voltages to the corona wire transfer roller and development rollers 29 SBU The sensor on this board reads and converts the light reflected from the documen...

Page 21: ...slot Then the registration roller feeds the paper a short distance into the machine to prepare for printing and stops 4 Interlock Switches No Name Description 20 22 Interlock Switches Fusing Unit Cov...

Page 22: ...Cassette This increases the paper capacity by 100 sheets The following components belong to this cassette 45 Paper Size Detector 46 Paper End Sensor 47 Paper Feed Clutch 34 Paper Feed Units The machi...

Page 23: ...D DC DC Converter LDDR Laser Synch SBU Microphone FOD PSU Sensors Speaker Clutches Operation Panel Scanner Motor Paper Feed Motor PFUs 100 Sheet Cassette Power Pack CTM Fan Motors Mechanical Component...

Page 24: ...an IC memory card or a hard disk The 128 kB SRAM contains the user and system parameters This can be up graded by 512 kB with the function upgrade card These SRAMs are battery backed up The MFCE has...

Page 25: ...decompresses the data from the SAF memory then the DCR block compresses it again for transmission The compressed data then passes either to the FIFO memory or to the ECM memory then it is sent to the...

Page 26: ...ems during printing this is known as substitute re ception The decompressed data is then passed to the page memory for printing After a page of data has been stored in the page memory the data is sent...

Page 27: ...ompresses it again into MMR format The MMR compressed data then passes to the CiG4 SV board for transmis sion G3 Transmission over an ISDN The analog data is converted into PCM Pulse Coded Modulation...

Page 28: ...R block in the SCP decompresses the data from either the FIFO or the ECM memory At the same time the demodulated data is backed up in the SAF memory in case of mechanical problems during printing this...

Page 29: ...memory after video processing VPP4F and compression DCMMR After all the pages have been stored in the SAF memory the data passes to the DCMMR block again for decompres sion then it passes to the page...

Page 30: ...a is sent to the LDDR through the LCP The page memory on the MFCE is not used for printing Scanner NCU Printer Interface Printer LDDR CiG4 SV CiG4 CODEC Buffer Memory MFCE Modem SAF Memory Line Buffer...

Page 31: ...n Panel 5V 5VE 9V SBU 12 4V NCU 24V 5VE Polygonal Mirror Motor Main Motor Scanner Motor Paper Feed Motor Ozone Fan Motor Power Pack Clutches 24VM Lamp Stabilizer Stamper Quenching Lamp Fusing Fan Moto...

Page 32: ...ed by the energy saver cpu when the machine is in Level 2 2 watts energy saver mode 5VE This is used when the machine is watching for activation signals from the NCU document feeder or operation panel...

Page 33: ...f the lithium battery BAT1 on the MFCE A is used for the 5VBAT supply The 5RTCCS signal tells the main cpu whether the back up power 5VBAT is supplied from the battery or from the 5V power supply If t...

Page 34: ...disk While the machine is turned off the rechargeable battery D BAT1 on the MFDU supplies the SAF memory It can back up the DRAM for an hour The battery D generates about 3 volts max 3 2 volts The dc...

Page 35: ...t document width as shown in the table below Document Size Document Sensor B4 width Sensor A3 width Sensor Actual Document Width Range A4 Letter On Off Off Less than 235 mm Less than 9 25 B4 On On Off...

Page 36: ...Because the line speed of the R1 roller E is 3 times faster than the feed and pick up rollers the release mechanism F releases the feed and pick up roll ers from the motor drive This makes these rolle...

Page 37: ...opy mode 1 47 s Standard Immediate Tx or Single copy mode 2 95 s Detail 2 95 s Fine 5 90 s The maximum acceptable document width is 304 mm 12 0 wide The maximum acceptable document page length can be...

Page 38: ...ocument length had been fed since it turned on 1 01 Error at power on The machine detected a document at power up 1 10 Error during feed out The machine detected a document placed in the ADF while the...

Page 39: ...is on the cpu drops the voltage at CN10 5 for 500 ms to ac tivate the stamper solenoid A Then the original is fed out of the scanner If the Stamp LED is off the machine feeds out the original without...

Page 40: ...it 4 0 Bit 4 1 Immediate tx Copying Scan 3 85 l mm Tx Copy 3 85 l mm Every other line is skipped Scan 7 7 l mm Tx Copy 3 85 l mm OR processed Scanning to memory OR processing is always disabled Detail...

Page 41: ...nt is too short the machine detects an error Note that this function cannot be used with copying immediate transmission or scanning an OMR sheet Cross Reference Partial image scanning on off User para...

Page 42: ...e the machine sends 6 pages if the user scans the last page or sends 5 pages if the user does not scan the last page the machine will warn the user that the numbers of odd and even pages do not match...

Page 43: ...ssage None Numbers of odd and even numbered pages were different Asks the user whether the machine can send the scanned pages or erase them None The Stop key was pressed during scanning Stops scanning...

Page 44: ...rocess A D Conversion Digital Process h515d502 wmf Halftone CCD A D Conversion Shading Correction OR Processing Erasure of Irregular Dots Thresholding MTF Background Detection Image Text Separation Ha...

Page 45: ...e deleted 2 MTF MTF Modulation Transfer Function can reproduce details such as thin lines points and complex characters 3 Thresholding Each video data element is compared against the threshold level w...

Page 46: ...Halftone process Each pixel is converted to six bit data 0 63 using either the dither or the error diffusion formula At the same time if the pixel is on a edge of a image pattern it is enhanced to ge...

Page 47: ...ch mm conversion ON mm inch mm inch OFF inch inch inch inch G3 Memory Transmission If the message was scanned in inch resolution units Rx terminal s resolution units Unknown inch mm inch and mm inch m...

Page 48: ...es during printing are as follows Toner application roller 700 V Development roller 400 V The transfer roller pulls the toner from the drum onto the paper A constant current of 4 A is applied The anti...

Page 49: ...plies a constant current of 305 5 A the voltage is about 5 3 kV The grid plate C ensures that the charge is uniformly spread out The zener diode D ensures that the charge on the drum does not exceed 7...

Page 50: ...lighting the Call Service indicator error code 9 17 Charge Control In this machine a higher corona wire current is used to counter black bands on copies The charge on the drum exceeds the zener diode...

Page 51: ...in the FDU The speed of the hexagonal mirror motor E depends on the printing resolution Mode Speed Fax mm mode 16 x 15 4 dots mm 10436 45 rpm Copy and fax inch mode 400 x 400 dots inch 10636 45 rpm P...

Page 52: ...rror when MFDU CN15 4 does not go low within 10 seconds of the hexagonal mirror motor being turned on The machine also detects a mirror motor error when MFDU CN15 4 goes back to high for 3 seconds or...

Page 53: ...ying the development bias In toner saving mode the im age data is filtered through the following four line matrix 1st line 1 0 1 0 1 0 1 0 1 0 2nd line 0 0 0 0 0 0 0 0 0 0 3rd line 0 1 0 1 0 1 0 1 0 1...

Page 54: ...pplied to the development unit from the outer openings D E in the CTM The spiral mechanism F on the toner supply bar distributes toner through the development unit Openings in the central area of the...

Page 55: ...by checking the power supply to the quenching lamp this is part of the CTM At power up When the machine comes back to normal mode from the Level 2 Power Saver Mode When the cover is opened and then cl...

Page 56: ...ched off and back on or when the cover is opened and closed if the output from the toner end sensor goes back high again However when the machine is turned off on or when the cover is opened and then...

Page 57: ...tween these two rollers The exposed area on the drum E is at 100 V The development roller ap plies toner to these areas of the latent image as they turn past the drum The development roller is made of...

Page 58: ...pplication roller and 400 10 V is applied to the development roller Toner transfers from the toner applica tion roller to the development roller and on to the laser exposed areas on the drum as shown...

Page 59: ...e develp ment roller does not transfer to the drum at B but transfers to the toner application roller at C In some cases positively charged toner may transfer to the drum in this condition So a positi...

Page 60: ...prevent toner from transferring to the drum Note that the voltage difference between the toner application and develop ment rollers is kept the same as in printing at 300 V This keeps the same amount...

Page 61: ...w Low High High Out Toner Application Roller 700 V 50 V Off Off Development Roller 400 V 250 V 400 V Off MFDU Driver QA1 Toner Application Roller Development Roller Transfer Roller Power Pack 21 6 21...

Page 62: ...ts The registration roller D rotates counter clockwise when the standard cas sette is used It rotates clockwise when the bypass feed slot B or the 100 sheet cassette is used When a sheet of paper is p...

Page 63: ...ion B and comes off the bottom hook C Once the slide lock comes off the bottom plate is raised by the pressure springs and the top sheet pushes up against the corner separators D This keeps the stack...

Page 64: ...ctuator B drops through a slot in the bottom plate Selectable cassette paper sizes USA model Letter Legal Europe model A4 A5 sideways Asia model A4 A5 sideways F F4 The following diagram shows the rel...

Page 65: ...sette When the 100 sheet cassette runs out of paper the paper end sensor actua tor B drops through a slot Paper Size Paper End Detection MFDU EXIO 2 IC4 MFCE LPC SCP CPU Serial Interface Bus Interface...

Page 66: ...paper feed motor A drives the pick up and feed mechanism When the standard cassette is used the paper feed motor turns clockwise driving the paper feed rollers B and the registration roller C as shown...

Page 67: ...ndard cassette If a sheet of paper remains in the bypass feed slot for longer than the Auto Reset Time System Switch 0B the machine will automatically feed it out The machine will not print incoming f...

Page 68: ...the ma chine the priority for paper feed is decided in accordance with the following rules The paper in the bypass feed slot has the first priority for copying and printing from a PC only If the mach...

Page 69: ...nsor is turned on When the bypass feed slot is used the machine prefeeds the paper until the registration sensor is turned on or for 1 second whichever comes first Then the paper feed motor starts rot...

Page 70: ...fter the paper feed clutch in the lower paper feed unit was switched on 9 52 When the relay sensor in the upper paper feed unit is not turned on within 2 0 seconds after the paper feed motor in the lo...

Page 71: ...sed transfer roller pulls negatively charged toner off the drum The curvature of the drum and the antistatic brush helps the paper to drop away from the drum Temperature and humidity have less effect...

Page 72: ...machine goes through the cleaning mode in the following conditions At power on when the fusing temperature reaches half of the standby temperature When the cover is opened and then closed during the p...

Page 73: ...urn on T1 Cleaning bias is applied to the transfer roller T2 A positive constant current of 4 0 2 A is applied to transfer back to the drum any toner which is positively charged by the transfer roller...

Page 74: ...ank D The mylar blade C scrapes the toner off the mag netic roller into the used toner tank D When the CTM is removed from the machine the cleaning roller cover E is closed by a spring This prevents r...

Page 75: ...be about 400 C Thermofuse maximum 169 C the temperature of the hot roller would be about 400 C The thermofuse is not used in USA models AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAA...

Page 76: ...measure when the temperature of the hot roller reaches about 400 C the thermostat and or the thermofuse open the thermofuse is not installed in USA models The machine turns on the cooling fan when th...

Page 77: ...t The machine detects a paper jam when the paper feed out sensor is not turned off within X seconds or more after it is turned on Error Code 9 09 X seconds paper length 67 546 3 seconds 67 546 mm s is...

Page 78: ...s to reach 165 C from the standby temperature Sub code 02 During printing If the fusing temperature stays above 190 C for more than 60 seconds Sub code 01 If the fusing temperature stays below 140 C f...

Page 79: ...h possible paper size The com bination of the bit settings determines the ratio for that paper size Bit No Switch No Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Not used Not used Legal F F4 A4 Let...

Page 80: ...t will be printed on two pages and treated in accordance with the setting of bit 1 of printer switch 00 If this bit is 1 the bottom few lines of the page will continue from where the first page left o...

Page 81: ...he 100 sheet cassette third and the pa per in the standard cassette last If the received page has to be split up and printed on two pages both pages will be the same size If the cassettes contain diff...

Page 82: ...aver CPU monitors the energy saver key incoming calls and the document sensor When the energy saver CPU detects activity at one of these it activates the 5V supply with the WAKEUP signal to start up t...

Page 83: ...t 2 on the flow chart Which Energy Saver Mode is Selected If User Switch 05 bit 6 is set to maintain the fusing lamp at the standby tem perature during Energy Saver Mode the machine enters Energy Save...

Page 84: ...Communication Error NCU Off Hook Optional Equipment Installed Memory 100 Tx File Polling Rx File Exists Condition 3 all cleared Machine is in operation Machine is in a service call condition Machine i...

Page 85: ...re is a tx file in the memory The machine stays in Energy Saver Mode Level 1 until it is time to send the message The machine then enters Level 0 while the message is sent See point 1 on the flow char...

Page 86: ...e in memory No Energy Saver Mode Level 2 LCD OFF LED OFF Fusing OFF Main CPU OFF Energy Saver CPU ON Timer 0 Timer T System SW 0B Bit 2 3 T 1 3 or 5 minutes User SW 05 Bit 6 Fusing Lamp OFF Yes No Con...

Page 87: ...ts are active in the background for receiving a fax message See point 1 on the flow chart Printing If either of the following conditions is not met condition 1 on the flow chart the machine will print...

Page 88: ...ergy Saver CPU OFF Memory Reception Energy Saving Mode Program No No Energy Saver Mode Level 1 LCD OFF LED OFF Fusing User SW 05 Setting Main CPU ON Energy Saver CPU OFF Energy Saver Mode is enabled b...

Page 89: ...e main CPU Level 1 monitors signals from the following con dition 1 on the flow chart Energy saver key Document sensor Off hook detector on the NCU When a signal from one of these has been detected th...

Page 90: ...ne communication Fax transmission Making copies etc Energy Saving Mode Program Standby Mode Yes Yes Message received in memory Operation Finished No No Energy Saver key pressed Document set in ADF NCU...

Page 91: ...g lamp failure 9 22 01 to 09 Hexagonal mirror motor failure 9 23 31 or 32 Main motor failure 9 24 41 or 42 Excessive jams in the ADF scanner None None Excessive jams in the printer None None The PM co...

Page 92: ...aper is fed without a jam occuring NO JAM1 and NO JAM2 are both incremented by 1 When NO JAM1 reaches DEC 16 by default NO JAM1 is set to zero and JAM is decremented by 1 When NO JAM2 reaches CLR 48 b...

Page 93: ...call Then the alarm is disabled until either bit 3 ADF jams or bit 4 printer jams of address 4805B0 H is reset to zero 3 Periodic Service Call The periodic service call notifies the condition of the...

Page 94: ...vice indicator does not light for a PM service call and the ma chine can be operated normally after it has made the service call 5 Effective Term of Service Calls If a time limit for the effectiveness...

Page 95: ...scanning Stops scanning and erases all the scanned pages from memory if the user agrees to erase them Stops scanning and hangs up the communication when memory overflow is detected Then erases all the...

Page 96: ...use the transmission speed is much faster than the scanning speed Transmission using parallel memory transmission is about twice as long as normal memory transmission using an ITU T 1 test chart Howev...

Page 97: ...als Communication switch 0C bits 0 to 4 default setting 5 digits The requester s fax number format is normally as follows International access code Country code Area code Local tel no A Pause must be...

Page 98: ...ng on the locations where the candidates are programmed For example if 00 12012223456 is pro grammed in Quick Dial 01 the machine always selects this number for sending back the report even if the tra...

Page 99: ...nce to other parameters ID code programming User function 61 Use of economy transmission during a transfer operation to end receivers Communication switch 0B bit 0 Use of economy transmission during a...

Page 100: ...ax On Demand card When playing back a message or transmit ting it to a caller the Voice A D Converter converts the digitized message back to an analog voice message and sends it to the speaker or the...

Page 101: ...ransmission mode Sometimes the machine might not detect DTMF signals while the machine is transmitting a voice message To avoid this the messages should instruct the caller to send DTMF signals after...

Page 102: ...e messages that were sent using parallel memory transmission So parallel memory transmission should be disabled when using this function For reception the machine can file any fax messages that were r...

Page 103: ...control Serial interface to MFDU EXIO and energy saver CPU Parallel interface to MFDU MFCE SCP CG ROM 512kB Flash ROM 2MB SRAM 128kB LPC R144EFXL Modem DRAM 2MB Video SRAM 24kB VPP4F Voice A D Convert...

Page 104: ...the MFDU 7 SRAM 128 kB SRAM for system and user parameter storage backed up by the battery on the MFCE 8 Video SRAM 8 kB SRAM for video processing 9 Voice A D converter Digital encoding of analog voic...

Page 105: ...ry ON OFF CN6 Test connector for scanner adjustment Pin 1 Data enable clock Pin 2 Analog video signal Pin 3 Line synchronization clock Pin 4 Ground Refer to section 5 11 for how to adjust the scanner...

Page 106: ...onverter LDDR Laser Synch SBU Microphone Fax on Demand PSU Sensors Speaker Clutches Operation Panel Scanner Motor Paper Feed Motor PFUs 100 Sheet Cassette Power Pack CTM Fan Motors Mechanical Componen...

Page 107: ...5V 12 4V 12V and 9V generation 7 DRAM Backup 5VD generation for DRAM SAF memory backup 8 Interlock Switches The top front cover interlock switch disables the power supply to the drive components the...

Page 108: ...HTN HTL F1 Surge Protection Surge Protection F2 Fusing Control Switching Circuit 24V COM3 AC Input Fusing Lamp Output 1HTORON 1HTON 24VD GND Interlock Switch Main Switch H515D532 wmf Ring Detect OHDI...

Page 109: ...S S S Finland L H L O O O Switzerland L H L O O O Other L H L S O O L Low H High S Short O Open TIP RING SHUNT GS T1 R1 TRXD JP24 TIP RING SHUNT GS T1 R1 OHDISW Hook0 RSEL DOSW CMLSW Hook1 ExRing CSE...

Page 110: ...on 01 PABX access code RAM address 4800BB Function 06 PABX access method RAM address 4800AD Function 06 Machine s serial number Function 14 Service station s fax number Function 13 PM call System swit...

Page 111: ...r the Function Upgrade Card and Fax On Demand Card be sure to read section 3 3 6 after installation 3 3 1 Feature Expander Type 140 80MB Hard Disk Note If an optional Printer Interface is installed re...

Page 112: ...parameter list and make sure that HD is listed as an option on the list b Check that the memory indicator shows 100 in standby mode c Print the memory dump list service function 06 for addresses 70000...

Page 113: ...2 This step is necessary only for the Europe model Attach the inner bracket D 3 screws and the grounding plate E 3 screws as shown 3 Attach the grounding wire F and connect the ISDN board G to the FCE...

Page 114: ...left cover Connect the phone line cable 7 Plug in the machine and turn on the main switch 8 Do the initial setting with user function 61 and service function 17 Please refer to the ISDN op tion servic...

Page 115: ...nd put back the rear cover A Then connect the mi crophone socket F to the NCU cover as shown 5 Plug in the machine and turn on the main switch Then do the following a Print the system paprameter list...

Page 116: ...over B as shown 2 Install the counter C as shown 3 Connect the harness D to the MFDU then put back the rear cover A 2 screws 4 Plug in the machine and turn on the main switch 5 Make some copies and ch...

Page 117: ...B 1 screw and C as shown 2 Put back the rear cover A 2 screws on top and 1 screw at the lower left corner 3 Install two brackets D 2 screws and E 2 screws one of these secures the rear cover as well a...

Page 118: ...on panel as shown Note If installation of additional SIMM memory is desired refer to the Printer Interface Service Manual section 3 2 AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA...

Page 119: ...rning off the machine with the card installed 2 Disconnecting the card 3 Turning on the machine without the card installed To prevent accidental data erasure change System Bit Switch 16 bit 0 to 1 whe...

Page 120: ...To see the G3 switches 3 To see the communication switches 4 Example Press 0 4 Scroll through the bit switches Increment bit switch _ Decrement bit switch Example Display bit switch 3 _ x 3 5 Adjust...

Page 121: ...e 3 Paper feed counter Second paper feed unit OPEN Cassette Paper feed counter 100 sheet cassette BY PASS Paper feed counter By pass feeder DOC JAM Document jam counter COPY JAM Paper jam counter tota...

Page 122: ...part no Check sum values total boot main ROM VER Version Software release no Software release date CONFIDENTIAL ID COUNTER NCU PARAMETER SERVICE NUMBER OWN NUMBER NUMBER MEMORY LOCK ID SWUSR User Para...

Page 123: ...FU 6 0 1 9 9 5 then immediately Y 2 0 5 3 S SERVICE SET NO OR NO 01BIT SW 02PARA LIST 03ERROR CODE 04SVC MONITOR _ ERROR CODE CODE 0 14 JAN 1 3 15PM SERVICE SET NO OR NO 01BIT SW 02PARA LIST 03ERROR...

Page 124: ...Y FU 4 1 7 RAM Dump Function 06 1 FU 6 0 1 9 9 5 then immediately Y 2 0 6 3 1 SERVICE SET NO OR NO 01BIT SW 02PARA LIST 03ERROR CODE 04SVC MONITOR _ RAM NO 0 MEMORY R W 1 MEMORY DUMP _ MEMORY R W ADD...

Page 125: ...unters press 0 Check the PM counter press 1 Check the CTM counter press 2 Check the OPU counter press 3 Example Press 0 4 To change the contents of a counter input the new value then press Y 5 To fini...

Page 126: ...ugh the available tests using or _ 5 To start a test S 6 To stop the test s SERVICE SET NO OR NO 01BIT SW 02PARA LIST 03ERROR CODE 04SVC MONITOR _ NCU NO 0 MODEM 1 DTMF 2 NCU PARA 3 RINGER _ MODEM TES...

Page 127: ...ion 08 Note This function can be used only when G3 bit switch 0B bit 5 French PTT requirements is 1 in European models It cannot be used in USA models 1 FU 6 1 9 9 5 then immediately Y 2 0 8 3 3 SERVI...

Page 128: ...on 08 1 FU 6 1 9 9 5 then immediately Y 2 0 8 3 3 4 To start the test S 6 To stop s 7 To finish N FU SERVICE SET NO OR NO 01BIT SW 02PARA LIST 03ERROR CODE 04SVC MONITOR _ NCU NO 0 MODEM 1 DTMF 2 NCU...

Page 129: ...10 1 FU 60 1 9 9 5 then immediately Y 2 1 0 3 0 4 To start the test press S 5 To stop the test press s 6 To finish N FU SERVICE SET NO OR NO 01BIT SW 02PARA LIST 03ERROR CODE 04SVC MONITOR _ LED LCD...

Page 130: ...0 to 5 5 Press S A test pattern is printed 6 To finish N FU SERVICE SET NO OR NO 01BIT SW 02PARA LIST 03ERROR CODE 04SVC MONITOR _ SCANNER NO 0 Xe LAMP 1 ADF TEST _ ADF TEST PRESS START SERVICE SET NO...

Page 131: ...t the SRAM Press 0 S Test the DRAM Press 1 S If test is successful the display shows OK If test is unsuccessful the display shows ADDRESS 4 To finish N FU SERVICE SET NO OR NO 01BIT SW 02PARA LIST 03E...

Page 132: ...o the op posite side of the tool ICAUTION If the machine has an optional Function Upgrade card or an optional Fax On Demand card follow the instructions in section 4 1 23 Otherwise the programmed data...

Page 133: ...eter list and check the ROM version on it Note In rare cases the boot block will have to be rewritten In such cases you must do the following in addition to the above procedure After step 3 set bit 5...

Page 134: ...ional Function Upgrade card or an optional Fax On Demand card follow the instructions in section 4 1 23 Otherwise the programmed data in the IC card may all be erased Note The switch D on the tool mus...

Page 135: ...OK If the software upload fails the bottom line shows NG 9 Finish N FU 10 Turn off the machine disconnect the tool then turn the machine on again COPY NO 0 ROM COPY 1 RAM COPY _ COPY MACHINE FLASH ROM...

Page 136: ...ged MFCE C to the opposite side of the tool ICAUTION If the machine has an optional Function Upgrade card or an optional Fax On Demand card follow the instructions in section 4 1 23 Otherwise the prog...

Page 137: ...een set to 1 as ex plained in section 3 3 6 to prevent the data inside the IC card from being initialized accidentally So do the procedures as explained below to prevent data from being erased from th...

Page 138: ...the same SRAM data as the defective MFCE had before the IC card is put back 1 Make sure that System Switch 16 bit 0 is set to 1 and that the battery switch on the IC card is at the ON position 2 Turn...

Page 139: ...ognizes that the card has been removed and all the data programmed in the card will not be accessable any more 4 Make sure that all the programmed data in the IC cards can still be used 4 1 24 Service...

Page 140: ...Y 2 1 6 3 0 4 S If the initialization was completed without error OK will be displayed If there was an error NG will be displayed SERVICE SET NO OR NO 01BIT SW 02PARA LIST 03ERROR CODE 04SVC MONITOR _...

Page 141: ...28 Hard Disk Test Function 16 1 FU 6 0 1 9 9 5 then immediately Y 2 1 6 3 2 4 S If the test was completed without error OK will be displayed If there was an error NG will be displayed SERVICE SET NO...

Page 142: ...fidential ID number print the confidential mes sages which has been received in the machine s memory using the following procedure 1 FU 5 5 2 Enter 1 2 as confidential ID then press Y The machine will...

Page 143: ...ear the SAF Always use this reset level after the software has been updated by a remote diagnostics system This reset is not necessary after local software update Reset Level 2 In addition to those it...

Page 144: ...A0 00 00 The four digit hexadeimal value N after L indicates the rx level The high byte is given first followed by the low byte Divide the decimal value of N by 16 to get the rx level In the above ex...

Page 145: ...s 72 7200 bps 48 4800 bps 24 2400 bps Resolution S Standard 8 x 3 85 dots per mm D Detail 8 x 7 7 dots per mm F Fine 8 x 15 4 dots per mm 21 Standard 200 x 100 dpi 22 Detail 200 x 200 dpi Compression...

Page 146: ...1 Not used Bit 4 mm inch conversion 0 Disabled 1 Enabled Bit 5 Engine type 0 mm 1 inch Bit 6 Resolution unit 0 mm 1 inch System Switch 01 No FUNCTION COMMENTS 0 PM call 0 Disabled 1 Enabled This bit s...

Page 147: ...this bit switch 1 Set this bit to 1 only when you need to rewrite the boot block in the Flash ROM using Function 12 Cross reference Software Download Section 4 1 20 6 7 Memory read write by RDS Bit 7...

Page 148: ...s default interval After the user replaces the drum the machine asks the user if the drum has been replaced or not If the user answers yes the machine resets the OPC counter to zero The drum replaceme...

Page 149: ...ht accidentally cancel another person s memory transmission in progress 1 6 Not used Do not change the settings 7 On screen function list 0 Disabled 1 Enabled If this feature is enabled the most frequ...

Page 150: ...ter failed communications 3 Printing of the error code on the error report 0 No 1 Yes 1 Error codes are printed on the error reports 4 Listing of Confidential IDs on the Personal Code List 0 Disabled...

Page 151: ...l is disabled 6 Line used for G3 transmission 0 PSTN 1 ISDN If an ISDN kit has been installed this bit determines whether G3 transmissions go out over the PSTN or the ISDN 7 Line used when the machine...

Page 152: ...esses Cross reference NCU country code Function 08 parameter C C System Switch 10 No FUNCTION COMMENTS 0 to 7 Threshold memory level for parallel memory transmission Threshold mount N 64 kbytes 256 kb...

Page 153: ...too far to the right it may interfere with the file number which is on the top right of the page On an A4 page if the CIL is moved over by more than 60 mm it may overwrite the page number System Switc...

Page 154: ...ade Card or a Fax On Demand Card is installed in the machine s lower IC card slot before power off all the data in these cards will be initialized if the machine does not detect the card at the next p...

Page 155: ...processing is enabled 5 OR processing for immediate tx and copying Detail resolution 0 Disabled 1 Enabled 0 The machine scans the document in 7 7 line mm steps then transmits or makes copies 1 The mac...

Page 156: ...0 to 7 Contrast threshold with halftone enabled Darken setting The value can be between 00 to 0F For a darker threshold input a lower value Default setting 02 H Scanner Switch 08 No FUNCTION COMMENTS...

Page 157: ...mode is not done at all if bypass feed is used 1 Cleaning mode is done every time after a sheet of paper is fed from the bypass feed slot 4 to 6 Not used Do not change the settings 7 mm inch conversio...

Page 158: ...ios used for different paper sizes with reduction enabled in switch 03 0 above If reduction is enabled the data will be reduced in the length direction before printing These switches determine the max...

Page 159: ...the settings Printer Switch 0A Not used do not change the settings Printer Switch 0B Not used do not change the settings Printer Switch 0C Not used do not change the settings Printer Switch 0D Not use...

Page 160: ...MH MR MMR 1 1 Not used These bits determine the compression capabilities to be used in the transmission and to be declared in phase B handshaking of the T 30 protocol Cross reference EFC compression...

Page 161: ...only the last 4 digits are compared 1 1 The machine will not transmit if the other end does not identify itself with an RTI or CSI 0 0 Nothing is checked transmission will always go ahead 4 Operator c...

Page 162: ...0 Pages received with errors are not printed 3 Hang up decision when a negative code RTN or PIN is received during G3 immediate transmission 0 No hang up 1 Hang up 0 The next page will be sent even i...

Page 163: ...to G3 if the other terminal is not a G4 terminal 0 Disabled 1 Enabled Also see System Switch 0A bit 7 Refer to the ISDN G4 option service manual G4 Internal Switches 17 18 1A 1B and 1C for the CPS cod...

Page 164: ...ansfer Stations 0 Disabled 1 Enabled 2 Use of Label Insertion for the End Receivers in a Transfer operation 0 Disabled 1 Enabled This bit determines whether the machine uses the Label Insertion featur...

Page 165: ...to 31 digits After the machine receives a transfer request the machine compares the own telephone number sent from the Requesting Terminal with all Quick Speed Dials programmed in the machine startin...

Page 166: ...7 Memory transmission Maximum number of dialing attempts to the same destination 01 FF Hex times Communication Switch 11 No FUNCTION COMMENTS 0 to 7 Immediate transmission Maximum number of dialing at...

Page 167: ...solution for receiving fax messages Bit 0 1 200 x 100 8 x 3 85 Bit 1 1 200 x 200 8 x 7 7 Other bits Not used For the best performance do not change the factory settings The setting determined by these...

Page 168: ...back test 0 Disabled 1 Enabled Set this bit to 1 when you wish to do a back to back test 115 V model Be sure to connect jumpers JP5 and JP6 on the NCU before doing the test 220 V model Be sure to app...

Page 169: ...abled Refer to Appendix B in the Group 3 Facsimile Manual for details about Short Preamble G3 Switch 03 No FUNCTION COMMENTS 0 DIS detection number Echo countermeasure 0 1 1 2 0 The machine will hang...

Page 170: ...0 0 1 1 7 2 k 0 1 0 0 9 6 k 0 1 0 1 12 k 0 1 1 0 14 4 k Other settings Not used These bits set the initial starting modem rate for transmission Use the dedicated transmission parameters if you need to...

Page 171: ...cable equalizer tx mode Bit 1 Bit 0 Setting 0 0 None 0 1 Low 1 0 Medium 1 1 High Use a higher setting if there is signal loss at higher frequencies because of the length of wire between the modem and...

Page 172: ...o try using the cable equalizer if one or more of the following symptoms occurs Communication error with error codes such as 0 20 0 23 etc Modem rate fallback occurs frequently 4 to 7 Not used Do not...

Page 173: ...Europe 0 Disabled 1 Enabled The machine does not automatically reset these bits for each country after a country code System Switch 0F is programmed Change the required bits manually at installation...

Page 174: ...ot used do not change the settings G3 Switch 0E Not used do not change the settings G3 Switch 0F Not used do not change the settings Service Tables December 21st 1995 SERVICE TABLES AND PROCEDURES BIT...

Page 175: ...his address or use the decimal value to program it using Function 08 parameter 00 Country Decimal Hex France 00 00 Germany 01 01 UK 02 02 Italy 03 03 Austria 04 04 Belgium 05 05 Denmark 06 06 Finland...

Page 176: ...one frequency upper limit high byte Hz BCD If both addresses contain FF F tone detection is disabled 480414 PSTN busy tone frequency upper limit low byte 480415 PSTN busy tone frequency lower limit hi...

Page 177: ...tone OFF time range 2 48042E Busy tone ON time range 3 48042F Busy tone OFF time range 3 480430 Busy tone ON time range 4 480431 Busy tone OFF time range 4 480432 Busy tone continuous tone detection t...

Page 178: ...uses for the pause time 480448 480449 480444 Country dial tone reset time LOW 480445 Country dial tone reset time HIGH 480446 Country dial tone continuous tone time 480447 Country dial tone permissibl...

Page 179: ...de of 100 48045B F1 48045C 00 48045C International dial access code Low 48045D PSTN access pause time 20 ms This time is waited for each pause input after the PSTN access code Up to 7 of these can be...

Page 180: ...etected 1 Function 08 parameter 06 480477 Minimum required length of the first ring 20 ms See Note 4 Function 09 parameter 07 480478 Minimum required length of the second and subsequent rings 20 ms Fu...

Page 181: ...requency upper limit low byte 4804A3 Acceptable CED detection frequency lower limit high byte BCD Hz If both addresses contain FF F tone detection is disabled 4804A4 Acceptable CED detection frequency...

Page 182: ...led 4804B2 Acceptable AI short protocol tone 800Hz detection frequency lower limit low byte If both addresses contain FF F tone detection is disabled 4804B3 Detection time for 800 Hz AI short protocol...

Page 183: ...Address Function Unit Remarks 4804BE to 4804D9 Not used Do not change the settings 4804DA T 30 T1 timer 1 s SERVICE TABLES AND PROCEDURES December 21st 1995 NCU PARAMETERS 4 64...

Page 184: ...043C if bit 2 1 off time hex code unit 20 ms 3 Pulse dial parameters addresses 48044A to 48044F are the values for 10 pps If 20 pps is used the machine automatically compensates 4 The first ring may n...

Page 185: ...FH FFH FFH 04H 98H UK FFH FFH FFH FFH FFH Italy FFH FFH FFH 04H 71H Austria FFH FFH FFH 05H 30H Belgium FFH FFH FFH 05H 20H Denmark FFH FFH FFH 05H 12H Finland FFH FFH FFH 05H 36H Ireland FFH FFH FFH...

Page 186: ...1H New Zealand FFH FFH FFH FFH FFH Singapore FFH FFH FFH FFH FFH Malaysia FFH FFH FFH FFH FFH Address 48040B 48040C 48040D 48040E 48040F France 50 2 0 0 FFH Germany 105 4 200 00H FFH UK FFH FFH 200 00...

Page 187: ...FH FFH Singapore FFH FFH FFH FFH FFH Malaysia FFH FFH FFH FFH FFH Address 480415 480416 480417 480418 480419 France 03H 96H 09H 00H 03H Germany 03H 50H FFH FFH FFH UK 03H 60H FFH FFH FFH Italy 03H 29H...

Page 188: ...ingapore FFH FFH FFH FFH FFH Malaysia FFH FFH FFH FFH FFH Address 48041F 480420 480421 480422 480423 France 02H 00H 00H FFH FFH Germany FFH 200 00H FFH FFH UK FFH 200 00H FFH FFH Italy 4 200 00H FFH F...

Page 189: ...03H New Zealand FFH FFH FFH FFH FFH Singapore FFH FFH FFH FFH FFH Malaysia FFH FFH FFH FFH FFH Address 480429 48042A 48042B 48042C 48042D France FFH 25 25 FFH FFH Germany FFH 12 12 24 24 UK FFH 19 19...

Page 190: ...e FFH FFH FFH FFH FFH Malaysia FFH FFH FFH FFH FFH Address 480433 480434 480435 480436 480437 France 42H 04H 74H 04H 06H Germany 31H FFH FFH FFH FFH UK 42H FFH FFH FFH FFH Italy 40H FFH FFH FFH FFH Au...

Page 191: ...H Singapore FFH FFH FFH FFH FFH Malaysia FFH FFH FFH FFH FFH Address 48043D 48043E 48043F 480440 480441 France 0 0 FFH FFH FFH Germany 00H 00H FFH FFH FFH UK 00H 00H FFH FFH FFH Italy 00H 00H FFH FFH...

Page 192: ...and FFH FFH FFH FFH FFH Singapore FFH FFH FFH FFH FFH Malaysia FFH FFH FFH FFH FFH Address 480447 480448 480449 48044A 48044B France FFH 0 0 67 65 Germany FFH 00H 00H 50 60 UK FFH 00H 00H 252 66 Italy...

Page 193: ...New Zealand 34 50 36 101 100 Singapore 34 50 36 101 100 Malaysia 34 50 36 101 100 Address 480451 480452 480453 480454 480455 France 70 12 4 34 34 Germany 90 14 6 34 34 UK 100 18 4 34 34 Italy 70 12 4...

Page 194: ...apore 00H 00H FFH FFH FFH Malaysia 00H 00H FFH FFH FFH Address 48045E 48045F 480465 480466 480472 France 80H 10H FFH 16H 17 Germany C0H 10H FFH FFH 17 UK C0H 10H FFH FFH 20 Italy D1H 10H FFH FFH 18 Au...

Page 195: ...3 FFH 00H 1 10 Malaysia 83 FFH 00H 1 10 Address 480478 480479 48047A 480481 480482 France 5 04H 01H 25 00H Germany 10 90H 01H 25 00H UK 10 90H 01H 25 00H Italy 10 90H 01H 25 00H Austria 10 90H 01H 25...

Page 196: ...Singapore 11H 24H 22H 00 20H Malaysia 11H 24H 22H 00 20H Address 4804A4 4804A5 4804A6 4804A7 4804A8 France 00H 30 12H 00H 10H Germany 00H 10 12H 00H 10H UK 00H 10 12H 00H 10H Italy 00H 10 12H 00H 10H...

Page 197: ...96H 32H Singapore 00H 10 19H 96H 32H Malaysia 00H 10 19H 96H 32H Address 4804AF 4804B0 4804B1 4804B2 4804B3 France 08H 80H 07H 20H 10 Germany 08H 80H 07H 20H 10 UK 08H 80H 07H 20H 10 Italy 08H 80H 07...

Page 198: ...e 6 0 0 6 0 Malaysia 6 0 0 6 0 Address 4804B9 4804BA 4804BB 4804BC 4804BD France 0 15 0 0 0BH Germany FEH 15 0 0 18H UK 0 15 0 0 0BH Italy 0 15 0 0 0BH Austria 0 15 0 0 0BH Belgium 0 15 0 0 0BH Denmar...

Page 199: ...enmark 53 Finland 53 Ireland 53 Norway 53 Sweden 53 Switzerland 92 Portugal 53 Holland 53 Spain 80 Israel 59 USA 53 Asia 47 Hong Kong 53 South Africa 53 Australia 53 New Zealand 53 Singapore 53 Malays...

Page 200: ...or a Speed Dial number Example Change the Parameters in Quick Dial 10 3 FU 3 1 Y 4 Press Quick Dial key 10 Note When selecting Speed Dial 10 with Function 32 press 1 0 at the ten key pad 5 Press Y fou...

Page 201: ...emote terminal often contains errors the signal level may be inappropriate Adjust the Tx level for communications with that terminal until the results are better When disabled NCU parameter 01 setting...

Page 202: ...be slightly distorted at the other end if that machine uses mm based resolutions 2 3 DIS NSF detection method Bit 3 Bit 2 Setting 0 0 First DIS or NSF 0 1 Second DIS or NSF 1 0 Not used 1 1 Disabled...

Page 203: ...When disabled the setting of G4 parameter switch 3 bit 0 setting is used 4 to 7 Not used Do not change the settings Switch 07 Optional ISDN G4 kit required FUNCTION COMMENTS 0 to 3 Layer 3 protocol Bi...

Page 204: ...80000 H RAM Reset Level 1 Change the data at this address to FF H then switch the machine off and on to reset all the system settings Caution Before using this RAM print the settings of all the system...

Page 205: ...mark printing on received copies 0 Disabled 1 Enabled Bit 2 Reception time printing 0 Disabled 1 Enabled Bit 3 TSI included in transmitted messages 0 Disabled 1 Enabled Bit 4 Checkered mark printing 0...

Page 206: ...Bit 0 TTI CIL printing 0 Off 1 On Bit 1 Not used Bit 2 Closed network for transmission 0 Off 1 On Bit 3 Not used Bit 4 Batch transmission memory card required 0 Off 1 On Bit 5 Partial image scanning...

Page 207: ...whose RTIs CSIs are specified for this feature are forwarded 1 1 Faxes from senders whose RTIs CSIs are not specified for this feature are forwarded 4800A9 H User parameter switch 09 SWUSR_09 Bits 0 a...

Page 208: ...ibited 4800AD H PSTN access method SWUSR_0D Bits 0 and 1 PSTN access method from behind a PABX Bit 1 0 Setting 0 0 PSTN 0 1 Loop start 1 0 Ground start 1 1 Flash start 4800B8 H User function 62 settin...

Page 209: ...nction 13 See 48018F H for the type of network used for this number 480157 to 480165 H Own fax number PSTN User function 61 480166 to 480174 H Own fax number ISDN G4 Ueer function 61 480175 to 480183...

Page 210: ...thousands digit Ten thousands digit Note The following counters have the same data format as above 4801C4 to 4801C6 H Rx counter 4801C8 to 4801CA H Scan counter 4801CC to 4801CE H Print counter 4801D...

Page 211: ...rameters Refer to section 2 3 2 for details 4802A2 to 4802AD H G4 NSC code 4802AE to 4802C5 H G4 terminal ID ASCII Max 24 characters 4802C6 to 4802D9 H ISDN G3 CSI ASCII Max 20 digits 4802DA H Number...

Page 212: ...BCD 480358 to 48035C H Last RDS operation Read only 480358 H 01 H 24 hour clock 00 H 12 hour clock AM 02 H 12 hour clock PM 480359 H Year BCD 48035A H Month BCD 48035B H Day BCD 48035C H Hour 48035D...

Page 213: ...details 01 H The fusing lamp temperature stayed above 175 C while printing 02 H The fusing lamp temperature did not reach 150 C before starting printing 03 H The fusing lamp temperature did not go dow...

Page 214: ...printing 31 H Polygonal mirror motor startup error 32 H Polygonal mirror motor error during printing 41 H Main motor startup error 42 H Main motor error during printing When a service call was caused...

Page 215: ...present Bit 7 Standard cassette availability 0 Available 1 Not available 1 Jam paper end etc 4805E6 H Sensor status 1st Optional Paper Feed Unit Bit 0 to 3 Paper size sensor Note Available paper sizes...

Page 216: ...ountry for which the machine is designed Bit 0 Bit 1 Bit 2 Bit 3 1 0 0 0 Cassette not installed 0 1 0 0 A5 sideways 0 0 1 0 LT lengthwise 1 0 1 0 A4 lengthwise Bit 0 Bit 1 Bit 2 Bit 3 0 1 1 0 F F4 len...

Page 217: ...4663 494671 H ISDN G4 Subscriber Number Main 494686 H Number of digits programmed for ISDN G4 Subscriber Number Sub 494687 494695 H ISDN G4 Subscriber Number Sub 49A709 H Selection of the other casset...

Page 218: ...d 10th byte Number of pages transmitted or received 9th byte Low byte Hex 10th byte High byte Hex 11th and 12th bytes Personal code or number of total burst error lines If bit 4 of the 1st byte is 0 1...

Page 219: ...M 0 Off 1 On Bits 4 to 7 Communication mode used Bit 4 Bit 5 Bit 6 Bit 7 0 0 0 0 Normal 1 0 0 0 Confidential 0 1 0 0 Polling 1 1 0 0 Transfer Bit 4 Bit 5 Bit 6 Bit 7 0 0 1 0 Forwarding 1 0 1 0 Automat...

Page 220: ...where the error occurred 77th to 80th byte 8th error code and page number where the error occurred 81st to 84th byte 9th error code and page number where the error occurred 85th to 88th byte 10th erro...

Page 221: ...er C user Soft cloth and water Registration Roller C user C user Soft cloth and water Thermistor R Hot Roller Strippers R Hot Roller R Pressure Roller Fusing R Cleaning Pad R user Replaced when a new...

Page 222: ...memory Then turn off the main switch and disconnect the power cord for safety Lithium Battery The danger of explosion exists if a battery of this type is incorrectly replaced Replace only with the sam...

Page 223: ...Cover Assembly 5 1 3 Left Cover A H515R008 wmf A Rear Cover 4 screws 3 hooks B A H515R603 wmf A Cover 1 screw B Left Cover 2 screws 3 hooks 1 connector REPLACEMENT AND ADJUSTMENT December 21st 1995 C...

Page 224: ...essary to remove the connectors During reassembly ensure the harness is replaced in the hooks D as shown A B C H515R501 wmf A Small Cover A 1 screw B Small Cover B 1 screw C Right Cover 2 screws 3 hoo...

Page 225: ...ver Note for reassembly Thread the ground wire through the recess B as shown A B H515R010 wmf A Top Cover 1 tapping screw with grounding wire 1 white clip REPLACEMENT AND ADJUSTMENT December 21st 1995...

Page 226: ...Roller Assembly 5 2 2 Separation Rubber Plate A B H515R609 wmf A ADF Roller Cover B ADF Roller Assembly A H515R610 wmf A Separation Rubber Plate Replacement Adjus December 21st 1995 REPLACEMENT AND A...

Page 227: ...l 2 Thick High 3 To correct document feed problems adjust the position of lever A as shown in the following table Problem Position Multi feed Thin pages 1 Multi feed Thick pages 3 Jam 1 Non feed 3 5 2...

Page 228: ...R508 wmf C Bracket 7 tapping screws 1 grounding wire D Document Width Sensor B4 E Document Sensor F Scan Line Sensor G Document Width Sensor A3 Replacement Adjus December 21st 1995 REPLACEMENT AND ADJ...

Page 229: ...A Exposure Glass 2 white clips A B C H515R016 wmf Remove the scanner lower unit first A Scanner Lower Unit 5 screws 1 grounding wire 3 connectors B Scanner Side Cover A 1 screw C Scanner Side Cover B...

Page 230: ...5 3 3 Xenon Lamp B A C H515R503 wmf A R1 Roller 1 E ring B R2 Roller 1 E ring C Plate 2 screws A B C h505r506 wmf A Xenon Lamp 2 clips 1 connector B Shading Plate 1 tapping screw C Lens Cover 2 screws...

Page 231: ...he motor A Tx Motor 2 screws 1 connector A B D C E H515R017 wmf First remove the scanner lower unit refer to section 5 3 2 then turn it over A 1st Mirror 2 clips B 2nd Mirror 2 clips C 3rd Mirror 2 cl...

Page 232: ...emove the scanner lower unit refer to section 5 3 2 A Stamper B Bracket A 2 tapping screws with grounding wire C Bracket B 1 tapping screw D Lower Scanner Unit Cover Replacement Adjus December 21st 19...

Page 233: ...nit First remove the clip A and disconnect harnesses B C and D then remove the Laser Unit E B A C E D H515R619 wmf E Laser Unit 1 clip 3 connectors 4 positioning pins REPLACEMENT AND ADJUSTMENT Decemb...

Page 234: ...Do not open the laser unit or look along the laser beam path while the main power is on A B C H515R620 wmf A Laser Unit Cover B Laser Diode LD Unit 2 tapping screws C Hexagonal Mirror Motor 3 tapping...

Page 235: ...D then remove the development unit A A Development Unit 2 clips 1 connector A B A B C D F E H515R655 wmf 1 Place the pins A and B under the hooks A and B 2 Insert the pins C and D into the openings in...

Page 236: ...nce the main motor assembly is removed the gears and the shafts will come off the unit easily A H515R622 wmf A Transfer Roller 1 gear 2 spacers A B H515R623 wmf A Zener Diode 1 screw B Main Motor Asse...

Page 237: ...5 5 4 Toner End Sensor A H515R507 wmf A Toner End Sensor 1 connector REPLACEMENT AND ADJUSTMENT December 21st 1995 DEVELOPMENT 5 16...

Page 238: ...s development roller B and the parts labelled C to F in the above illustration are not included with a new development unit A To install a new development unit do the following 1 Install a new develop...

Page 239: ...oltage applied between the ter minals A B C D H515R657 wmf A Bias terminal from the power pack B Toner application roller shaft C Toner metering blade D Bias brush Criteria A B Less than 1 k A C Less...

Page 240: ...ler unit Initial Toner Supply After installing a new development unit do the following 1 Set bit 3 of RAM address 4805C8 to 1 2 Turn off the machine and wait for 10 s 3 Turn on the machine 4 The machi...

Page 241: ...hen remove the sensor assembly A bracket B and gear C B A C H515R625 wmf A Feed out Sensor Exit Cover Switch Assembly 2 tapping screws 2 connectors B Bracket 1 screw B A H515R624 wmf A Thermistor Cove...

Page 242: ...15R626 wmf A Fusing Left Cover 1 tapping screw B Harness Cover A 1 tapping screw C Harness Cover B 1 tapping screw D Ground Wire 1 screw E Fusing Unit Fulcrum 1 tapping screw F Thermistor Harness A H5...

Page 243: ...l not to lose the springs 5 6 4 Fusing Lamp ICAUTION Be careful not to touch the glass surface A H515R652 wmf 220V Models A Fusing Lamp 2 screws B A H515R628 wmf A Cleaning Felt B Hot Roller Strippers...

Page 244: ...and C The fusing upper and lower units come apart after the ground plate D is released from the upper unit E ICAUTION Do not bend the ground plate too much Continued on the next page D C B A E H515R6...

Page 245: ...the hot roller B B A C H515R631 wmf 115V Models A Bracket 3 screws B Hot Roller C Fusing Lamp Connector 1 screw B A C H515R653 wmf 220V Models A Bracket 3 screws B Hot Roller REPLACEMENT AND ADJUSTMEN...

Page 246: ...Bracket 2 screws B Bracket 1 tapping screw C Pressure Roller A B D C H515R654 wmf A Thermostat 2 screws B Thermofuse 2 screws 220V models only C D Terminal Plates for the Thermofuse 220V models only R...

Page 247: ...End Sensor First remove the bracket A then remove the sensor B B A H515R634 wmf A Paper Feed Motor 2 screws B Paper Feed Clutch Box 1 clip 2 screws A B H515R635 wmf A Bracket 1 screw B Paper End Sens...

Page 248: ...ector to the optional 100 sheet cassette C should be installed as shown in the diagram the triangle mark has to be at the left hand side of the connector By pass feed sensor See below B A C H515R636 w...

Page 249: ...ed Sensor Actuator Remove the bracket F and the guide plate G then remove the actuator H B F C A E D G H H515R637 wmf A Paper Guide A 4 hooks B Paper Guide B 4 hooks C D Springs E Registration Roller...

Page 250: ...5 8 PCBs 5 8 1 PSU A H515R026 wmf A Heat Sink 4 screws B H515R027 wmf B PSU 4 screws 2 connectors Replacement Adjus December 21st 1995 REPLACEMENT AND ADJUSTMENT PCBs 5 29...

Page 251: ...onal IC cards 3 Replace the old MFCE with the new MFCE make sure that the battery switch in the new MFCE is on Do not turn on the machine at this point 4 Connect the Flash SRAM Copy Tool into the lowe...

Page 252: ...ize Sensor Thermistor FCE Fan Motor Main Motor Quenching Lamp Mechanical Counter Polygonal Mirror Motor Tx Motor Paper Feed Motor Stamper Ozone Fan Speaker Power Pack Lamp Stabilizer 100 Sheet Cassett...

Page 253: ...e Filter and Fan Motor 5 9 2 Speaker C A D B H515R641 wmf A B Ozone Filter Holder 2 screws C Ozone Filter D Fan Motor 1 connector A H515R050 wmf A Speaker 2 screws REPLACEMENT AND ADJUSTMENT December...

Page 254: ...d Rollers First remove the gears D then remove the clutch E and rollers F B A C H515R642 wmf A Harness Cover 2 screws B Relay Connector 2 clips C Gear Cover 1 screw E A C B D F H515R643 wmf A Sensor S...

Page 255: ...Sensor B A A C B D H515R644 wmf A Paper Guide B Bottom Plate 2 springs C Paper Size Dial 1 clip 1 spring D Paper Size Sensor 2 hooks REPLACEMENT AND ADJUSTMENT December 21st 1995 100 SHEET PAPER CASSE...

Page 256: ...1 SBU adjustment knobs P N H0129300 5 11 3 Preparation 1 Set the oscilloscope scale to 0 2 V unit vertical and 0 5 ms unit horizon tal 2 Connect the test lead to CN 6 on the MFCE 3 Connect the oscillo...

Page 257: ...in the oscilloscope display meet the requirements Carefully tighten the SBU securing screws The waveform may have irregular patches if the lens mirror exposure glass white pressure plate or CCD is di...

Page 258: ...ing screw 3 Reduction Place the 200 dpi test pattern on the exposure glass Loosen the lens block securing the screws A Focus the lens block B until the signal has 8 or fewer crosspoints see the diagra...

Page 259: ...re glass as shown Loosen the SBU securing screws B Adjust the waveform with the adjusting knobs until it appears as shown in the diagram on the right B H515R043 wmf A H515R047 wmf H515R555 wmf REPLACE...

Page 260: ...s unit Adjust the waveform until it appears as shown in the right hand dia gram Do this by gently tapping the SBU as shown in the left hand dia gram The peak of the VIDEO signal must be within 4 bits...

Page 261: ...er Printer W2 Print Scan width Not adjustable Not adjustable Not adjustable L1 Top margin Scanner Printer Scanner Printer L2 Print Scan length Not adjustable Not adjustable Not adjustable L3 Bottom ma...

Page 262: ...argin by x mm New setting Current setting 15 4x To decrease the margin by x mm New setting Current setting 15 4x Initial setting of L1 2 mm 48061C H 1 15 4 mm 9A H 154 D L2 Not adjustable Original len...

Page 263: ...etting Current setting x 0 5 To decrease the margin by x mm New setting Current setting x 0 5 Initial setting of W1 2 mm Standard cassette 4804F5 H 1st paper feed unit 4804F6 H 2nd paper feed unit 480...

Page 264: ...setting of L1 2 mm Standard cassette 4804EA H 1st paper feed unit 4804EB H 2nd paper feed unit 4804EC H 100 sheet cassette 4804EF H Bypass feeder 4804F0 H 0 68 mm 0 34 mm 0 34 mm 0 68 mm 0 34 mm 00 H...

Page 265: ...nguish whether the problem is caused by the remote terminal or by your machine If the problem is caused by your machine distinguish whether it is due to a scanner problem or a printer problem Is the p...

Page 266: ...ctions behind the power pack and the power pack itself 3 Check if there is toner on the surface of the development roller If there is do the following If not go to step 4 Check if all the laser optic...

Page 267: ...d properly or it is not defective Possible Cause Printer The charge is not properly applied Action 1 Check if all the charge bias terminals on the development unit and the CTM and the charge wire are...

Page 268: ...t roller is dirty Action 1 Try replacing the drum 2 Check if the hot roller surface is dirty or not If it is clean the roller or replace the cleaning pad If not go to step 3 3 Check if all the charge...

Page 269: ...est pattern and open the cover in the middle of print ing 2 Check if the toner is evenly distributed on the development roller If it is not check the toner metering blade and the toner supply mecha ni...

Page 270: ...Dirty shading plate Action 1 Clean the exposure glass the mirrors or the shading plate 2 Replace the SBU Possible Cause Printer Damaged cleaning blade Dirty hot roller stripper s Action 1 Replace the...

Page 271: ...na leak failure Action 1 Check that the surface of the drum is not damaged Change the drum if it is damaged 2 If the problem still remains do the following Clean the charge wire Change the CTM H515t61...

Page 272: ...hot roller stripper scrapes off toner from the print paper Action Clean the laser optic components Check the hot roller stripper mechanism Clean the strippers and re place them if they are damaged H51...

Page 273: ...e or not If they do go to step 3 If not check the transfer roller surface and the transfer bias terminals connections If they are OK check or replace the power pack 3 Check if horizontal white lines w...

Page 274: ...ure glass Try disabling MTF Possible Cause Printer The drum surface is damaged the interval X approx 94 2 mm Toner on the hot roller the interval X approx 63 mm Action Replace the drum Clean the hot r...

Page 275: ...s likely if the dots ap pear at 62 8 mm intervals The toner application roller surface is damaged this is likely if the dots appear at about 16 75 mm intervals Action Replace the drum Clean the surfac...

Page 276: ...Clean shading plate Adjust the scan threshold settings Replace the scanner lamp or the SBU Possible Causes Printer Poor drum sensitivity Dirty laser optic components Incorrect development transfer bi...

Page 277: ...he fusing lamp thermistor and PSU If it does not go to step 4 4 Check if the toner on the drum looks faint or not If it does go to step 5 If it does not check the contacts between the transfer bias te...

Page 278: ...ering blade is deformed damaged or incorrectly posi tioned Action Clean the charge corona wire The wire cleaner is on the CTM Replace the CTM Check the toner metering blade and replace if it is damage...

Page 279: ...ng used If it is go to step 2 If not use recommended types of paper and toner 2 Try replacing the fusing lamp and the roller 6 1 14 Ghost Image Possible Cause Printer Poor drum sensitivity The cleanin...

Page 280: ...ake the roller off the machine 2 Gently tap the roller shaft to remove the toner 3 Turn the roller against a clean sheet of paper to let the toner transfer onto the paper If not go to step 2 2 Check i...

Page 281: ...tting main scan direction Action Adjust the main scan print margin Refer to Section 5 12 Check that the laser optics are aligned correctly 6 1 17 Misaligned Output Image shifted vertically Reduced Ima...

Page 282: ...etting The Tx motor is defective Action 1 Check that a correct type of document is being used 2 Check that the operation panel is securely closed 3 If the problem still remains do the following Clean...

Page 283: ...Action 1 Check that a correct type of document is being used and that the docu ment length is within the maximum setting 2 Check for obstructions in the paper path 3 If the problem still remains do th...

Page 284: ...s being used 2 Check that the operation panel is securely closed and also check that the document guide is properly set 3 Check for obstructions in the paper path 4 If the problem still remains do the...

Page 285: ...assette end fence is correctly set and check the pa per lift mechanism slide lock and the springs 3 Check that the feed clutch for the cassette that was used is working prop erly 4 Check that the pape...

Page 286: ...es are correctly set 2 Check for obstructions in the paper path 3 Check the registration roller and its mechanism Clean or replace if neces sary 4 Check that the registration sensor is working properl...

Page 287: ...lfunction in the pressure mechanism in the fusing unit Action 1 Check if a correct type of paper is being used 2 Check for obstructions in the paper path 3 Check that the registration sensor is workin...

Page 288: ...the registration mechanism Action 1 Check if a correct type of paper is being used 2 Check that the paper guides and the corner separators in the paper cas sette are correctly set 3 Check that the pa...

Page 289: ...ncorrect positioning of the paper guides and or end fence in the paper cassette Action Check if a correct type of paper is being used Check that the paper guides and the end fence are correctly set Tr...

Page 290: ...2 08 0 08 Fusing unit failure thermistor error 9 22 09 0 09 Hexagonal mirror motor startup error 9 23 31 3 31 Hexagonal mirror motor error while printing 9 23 32 3 32 Main motor startup error 9 24 41...

Page 291: ...blem still remain Replace the MFDU or MFCE 5 If the sub code is 12 do the following 6 Does CN21 3 stay low while in standby mode Replace the MFDU or MFCE Go to step 7 7 Does CN21 8 stay low while in s...

Page 292: ...if No Before checking anything do the following Reset the RAM address 4805AF H to 00 H then switch the power off wait for a few sec onds then switch back on If the problem remains check the following...

Page 293: ...gonal mirror motor Replace the MFDU If the problem still remains replace the MFCE Symptom Main Motor Failure Error Code 9 24 This error occurs in either of the following conditions If MFDU CN15 4 does...

Page 294: ...e line connection Check the NCU MFDU connectors Try changing the tx level and or cable equalizer settings Replace the MFCE or NCU The other terminal may be faulty try sending to another machine If the...

Page 295: ...ection 4 4 0 14 Non standard post message response code received Check the MFDU NCU connectors Incompatible or defective remote terminal try sending to another machine Noisy line resend Try adjusting...

Page 296: ...n the acceptable modem carrier drop time default 0 2 s Check the line connection Check the MFDU NCU connectors Replace the NCU or MFCE Defective remote terminal Check for line noise or other line prob...

Page 297: ...when the power was turned on Remove the paper Check the scan line sensor Cross reference ADF mechanical problems Section 6 2 1 1 17 Document jam in the feed out area Clear any debris from the sensor...

Page 298: ...ry the communication at a lower resolution or without halftone Change the MFCE 4 01 Line current was cut Check the line connector Check the connection between MFDU and NCU Check for line problems Repl...

Page 299: ...Wait for the messages which are currently in the memory to be sent or delete some files from memory 5 23 Print data error when printing a substitute rx or confidential rx message Test the SAF memory A...

Page 300: ...Defective remote terminal 6 11 G3 ECM printing impossible because of a missing first line in the MMR coding Check for problems in the printer mechanism 6 21 V 21 flag detected during high speed modem...

Page 301: ...er paper feed unit Check if any blockage in the paper feed path Check the paper feed mechanisms inside the unit Check if the sensor is defective 9 52 Paper non feed or jam inside the lower paper feed...

Page 302: ...f the original is the same size as the copy paper Paper end sensor Standard cassette The Add Paper indicator lights even if paper is remaining The Add Paper indicator does not light when the paper has...

Page 303: ...The only service replaceable fuses are the following Fuse Symptoms if Defective PSU F1 F2 F3 No power to the machine F3 220V PSU only MFDU F1 No power to the drive components and lamps Thermofuse Not...

Page 304: ...or Lock 5 Motor Enable 24 COM3 Printer Interface Optional Controller Ready 5 24V COM3 COM3 5V Interrupt 5 Serial Data Status Serial Data Command Serial Clock Printer Ready 5 COM1 Print Start 5 Vertica...

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Ricoh fax4700l, Service Manual

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