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Ricoh FAX2900L, Service Manual

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Ricoh FAX2900L Service Manual Download Page 156

21 May, 1999

LASER PRINTING COMPONENTS

6-7

Replacement

Adjustment

6.4  LASER PRINTING COMPONENTS

6.4.1  LASER UNIT

First, remove the top cover, and then lift the NCU bracket [A] (3 screws).

B: Laser Unit (2 connectors, 1 spring rod)

H547R527.WMF

H547R523.WMF

[A]

You do not
need to remove
this bracket.

[B]

Warning Label
(See the next page)

Summary of Contents for FAX2900L

Page 1: ...SCHMIDT 3 RICOH FAX2900L SERVICE MANUAL 21 May 1999 Subject to change...

Page 2: ...e laser unit or look along the laser beam path while the main power is on Lithium Batteries Memory Back up CAUTION The danger of explosion exists if a battery of this type is incorrectly replaced Repl...

Page 3: ...NT are registered trademarks of Microsoft Corporation General Notice Other product names used herein are for identification purposes only and may be trademarks of their respective companies We discla...

Page 4: ...1 MECHANISMS 2 1 2 1 2 JAM CONDITIONS 2 4 2 1 3 RESOLUTION UNIT CONVERSION 2 5 2 2 PRINTING 2 6 2 2 1 PRINTING PROCESS OVERVIEW 2 6 2 2 2 OPC DRUM 2 7 2 2 3 CHARGE 2 7 2 2 4 LASER EXPOSURE 2 8 2 2 5 T...

Page 5: ...08 4 5 4 1 11 MODEM TEST FUNCTION 08 4 5 4 1 12 DTMF TONE TEST FUNCTION 08 4 6 4 1 13 V 8 MODEM TEST FUNCTION 08 4 6 4 1 14 V 34 MODEM TEST FUNCTION 08 4 6 4 1 15 RINGER TEST FUNCTION 08 4 7 4 1 16 D...

Page 6: ...6 6 6 3 5 SCANNER UNIT 6 6 6 4 LASER PRINTING COMPONENTS 6 7 6 4 1 LASER UNIT 6 7 6 5 DEVELOPMENT 6 9 6 5 1 TRANSFER ROLLER 6 9 6 6 FUSING 6 10 6 6 1 FUSING UNIT 6 10 6 6 2 THERMISTOR 6 11 6 6 3 HOT R...

Page 7: ...BLACK COPIES 7 2 7 1 3 DIRTY BACKGROUND 7 3 7 1 4 UNEVEN IMAGE DENSITY 7 4 7 1 5 VERTICAL BLACK LINES 7 5 7 1 6 HORIZONTAL BLACK LINES 7 6 7 1 7 VERTICAL WHITE LINES 7 7 7 1 8 HORIZONTAL WHITE LINES...

Page 8: ...dpi Fine 15 4 lines mm 392 dpi Memory Capacity ECM 128 Kbytes SAF Standard 960 KB 76 pages ITU T 1 With 1 MB option 156 pages With 2 MB option 236 pages With 4 MB option 396 pages Compression MH MR MM...

Page 9: ...ssion Speed 14 400 12 000 9 600 7 200 4 800 2 400 bps depending on software applications Power Supply USA 115 20 Vac 60 3 Hz Europe Asia 220 240 15 Vac 50 60 3 Hz Power Consumption Base Machine Only S...

Page 10: ...6 x 15 4 l mm O Communication Features Auto AI short protocol O Automatic fallback O Automatic redialing O Confidential reception O Communication Features Auto JBIG compression USA model only O Dual a...

Page 11: ...Communication Features Service Selectable AI short protocol O Auto reduction override option O Busy tone detection O Communication Features Service Selectable Cable equalizer O Closed network TX and R...

Page 12: ...rt O Transmission result report O Reports User initiated Charge control report X File list O Group list O Help list O Reports User initiated Journal O Personal code list O Program list O Programmed sp...

Page 13: ...tor report O Service station number O Software upload download O SRAM data download O System parameter list O Technical data on the Journal O Thermal head parameters X Memory Files Maximum number of f...

Page 14: ...ler 7 All in One Cartridge Consists of the toner cartridge cleaning unit used toner tank charge brush roller application roller development roller and OPC drum 8 Laser Unit Consists of the LDDR Laser...

Page 15: ...t Roller Heat from this roller fuses the toner to the copy paper 15 Fusing Pressure Roller Applies pressure to the paper during the fusing process 16 Paper Feed out Rollers Feed the paper out of the p...

Page 16: ...21 May 1999 COMPONENT LAYOUT 1 9 1 3 2 ELECTRICAL COMPONENTS H547V502 WMF H547V503 WMF 1 2 3 4 5 6 9 11 12 14 16 18 20 19 21 13 27 24 25 29 30 15 23 7 8 17 10 26 22 28...

Page 17: ...upplies power to the machine and switches the fusing lamp on off 2 Motors No Name Description 4 Polygon Mirror Motor This high speed dc motor drives the hexagonal mirror in the laser printer optics 7...

Page 18: ...ts 5 Others No Name Description 10 Paper Feed Clutch Transfers drive from the paper feed motor to the paper feed roller 14 Monitor Speaker Allows the user to hear the telephone line condition 17 Fusin...

Page 19: ...Paper Feed Unit This detects whether the cassette is installed or not 5 Rear Cover Switch Paper Feed Unit This detects whether the rear cover is open or close 6 Paper Feed Roller Multi purpose Feeder...

Page 20: ...saver CPU The FCIP05 contains components such as the 8 bit CPU RU8 DIP Digital Image Processor LIF Laser Interface DCR Data Compression and Reconstruction and DMA Controller In energy saver mode the...

Page 21: ...the data from the SAF memory then compresses it again or the JBIG LSI compresses the data if JBIG compression is to be used for transmission The compressed data passes through the DCR buffer then to...

Page 22: ...sed data passes to the SAF memory as a backup in case of mechanical problems during printing substitute reception During G4 reception data from the ISDN line passes to the DCR for decompression The ra...

Page 23: ...h the LIF Multi page copy The scanned data passes to the SAF memory after video processing DIP and compression DCR After a page of data has been stored in the SAF memory the data passes to the DCR aga...

Page 24: ...to the machine through the DIU during transmission The machine stores the image in the SAF memory then makes a fax transmission NOTE 1 If the memory overflows while storing the first page into SAF me...

Page 25: ...echanical error in the printer Memory Reception The machine receives a fax message in the SAF memory then transfers data to the host computer after the reception has finished The machine prints the re...

Page 26: ...operation panel when the machine is in energy saving mode 5VLD Supplies the laser diode It is interrupted if the fusing unit cover interlock switch opens 5VT For the thermistor 5VV This is a more stab...

Page 27: ...switched off While the main power is on the 5VE supply recharges the battery The battery recharges in 5 or 6 days The battery B generates about 3 volts max 3 2 volts The DC DC converter raises this vo...

Page 28: ...the document the mechanical clutch in the ADF roller unit lifts up the pick up rollers B to feed the bottom sheet of the document Then the feed belt C feeds the sheet into the scanner The separation...

Page 29: ...bly is factory adjusted so it does not require adjustment or replacement in the field The image sensor scans the original one line at a time and outputs an analog signal for each line The voltage from...

Page 30: ...g position after the page is transmitted immediate transmission or scanned into memory memory reception successfully The machine drops the signal at CN30 3 to activate the stamp solenoid Then the orig...

Page 31: ...imum document length exceeded The scan line sensor does not turn off after the maximum document length has fed through it This occurs after 11 seconds at standard resolution for memory TX 23 seconds a...

Page 32: ...other models such as FX4 and FR4 convert from inches to mm units whereas this machine converts from mm to inches G3 Immediate and Memory Transmission Receiving terminal s resolution units inch mm inch...

Page 33: ...r carries toner to the latent image on the drum surface The bias voltages during printing Toner application roller 650 V Development roller 400 V The transfer roller pulls the toner from the drum onto...

Page 34: ...nd transfer roller E The drum development roller fresh and used toner tanks and cleaning mechanism are all included in the cartridge which is known as the All in One cartridge 2 2 3 CHARGE The cartrid...

Page 35: ...beam emitted from the LD unit D is 4 mW with a wavelength of 780 nm The photo transistor E inside the LD unit synchronizes the laser main scan The mirror F reflects the laser beam onto the drum The c...

Page 36: ...vice indicator error code 9 20 Mirror Motor Failure The machine detects a mirror motor error when the FCU CN10 4 signal does not go low within 10 seconds of the polygon mirror motor turning on The mac...

Page 37: ...a gear train Since the toner tank and the development unit is composed in one unit initial toner supply mode is not required for this machine Cartridge Detection This machine does not have toner cass...

Page 38: ...blink the Add Toner indicator LED This is the toner near end condition Toner end condition After toner near end is detected the machine can print 100 more sheets then the cpu disables printing this i...

Page 39: ...r to section 4 4 2 of the Group 3 Facsimile manual During printing the power pack applies a bias voltage of 650V to the toner application roller and another bias voltage of 400V to the development rol...

Page 40: ...uring Printing The power pack applies a charge of 650V to the toner application roller and 400V to the development roller Toner transfers from the toner application roller to the development roller an...

Page 41: ...the development roller This is to prevent toner from transferring to the drum Note that the voltage difference between the toner application and development rollers is kept the same as in printing at...

Page 42: ...ing the BIASCTL and BIASPWM signals as shown in the following table In BIASCTL Low High Low High BIASPWM On On Off Off Out Toner Application Roller 650 V 0 V Off Off Development Roller 400 V 250 V Off...

Page 43: ...PER FEED Overview The standard cassette A holds 250 sheets An optional paper feed unit which holds up to 500 sheets is available only one of these can be installed An optional multi purpose feeder B i...

Page 44: ...ssette the projection A pushes the slide lock B off the bottom hook C Once the slide lock comes off the pressure spring lifts the bottom plate Optional Paper Feed Unit After loading the paper and clos...

Page 45: ...Feeder When the cassette runs out of paper the paper end sensor actuator A drops through a slot in the bottom plate H547D527 WMF FCU FCIP05 Paper End Sensor Standard Cassette Paper End Sensor Multi Pu...

Page 46: ...Reference Group 3 Facsimile Manual section 4 5 4 The paper feed motor in the mainframe starts to rotate when the printer is ready for printing Drive Mechanism Standard Cassette The paper feed motor A...

Page 47: ...er rotates only once for each sheet of paper Optional Multi purpose Feeder The paper feed mechanism is driven from the paper feed motor in the mainframe through a gear train When the machine feeds a s...

Page 48: ...ional paper feed unit first the standard cassette second and the multi purpose feeder third The multi purpose feeder can be set to print only from a PC by a user parameter switch adjustment 2 2 8 REGI...

Page 49: ...or turned off When the fusing exit sensor does not turn off within 5 0 seconds after the registration sensor turns off 9 09 Optional Paper Feed Unit When the paper edge sensor does not turn on within...

Page 50: ...transfer roller which touches the drum surface The power pack A applies a constant current of 5 0 A to the transfer roller B The positively biased transfer roller pulls negatively charged toner off t...

Page 51: ...transfer roller and charges the drum to 750V The negatively charged toner on the transfer roller transfers back to the drum The machine cleans the transfer roller under the following conditions At pow...

Page 52: ...toner tank The cleaning blade A removes any toner remaining on the drum after the image is transferred to the paper and then brings the toner into the used toner tank B There is no used toner overflo...

Page 53: ...f or at 80 C Cross Reference Energy Saver Modes Section 2 3 Points to Note Standby temperature Room temperature 2 watt Energy Saver Mode 80 C if users select Fusing Lamp On Printing temperature 190 C...

Page 54: ...gnal on the FCU If the thermistor is connected properly the machine begins normal operation If it is not it generates an Auto Service Call error code 9 22 sub code 09 As a backup safety measure when t...

Page 55: ...er is fed out of the unit After opening the upper unit the gear train frees up making it easy to remove jammed paper Jam Detection Paper Feed Out The machine detects a paper jam when the fusing exit s...

Page 56: ...e fusing temperature stays above 175 C for more than 180 seconds after selecting the power saver standby temperature of 145 C for Energy Saver Mode Level 1 Sub code 0A If the fusing temperature is abo...

Page 57: ...evel 1 Level 2 Main CPU ON ON OFF Energy Saver CPU OFF OFF ON LCD LED ON OFF OFF Energy Saver LED OFF ON ON 5V Power Supply ON ON OFF 24VM Power Supply ON ON OFF Fusing Lamp ON 80 C or OFF OFF The fus...

Page 58: ...Saver key Document sensor Off hook detector on the NCU Activation signal from the G4 unit When the CPU detects a signal from one of these it wakes up all the components and the machine enters normal...

Page 59: ...e 8004B1 H Laser diode failure 9 20 21 Fusing lamp failure 9 22 01 to 0B Polygon mirror motor failure 9 23 31 or 32 Power pack failure 9 29 51 to 59 Excessive jams in the scanner None None Excessive j...

Page 60: ...ts or characters can be sent in a PWD frame SUB Sub address This signal informs a sub address of a destination Some fax servers use this information to route a received fax message to a specific addre...

Page 61: ...f the following conditions occur Error Code 0 15 When the SEP ID is other than four digits When anything other than numbers is included in the ID The communication is free polling when the programmed...

Page 62: ...rs is included in the ID When a confidential ID is not programmed in the RX terminal and when the transmitted SUB ID is 0000 A stored message can be printed using the normal confidential ID stored in...

Page 63: ...ermines the ratio for that paper size Bit No Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Switch No Not used Not used Legal F4 A4 Letter Not used A5 sideways Sw 04 0 4 3 1 4 3 0 8 7 1 12 11 Sw 05 0...

Page 64: ...t how to treat an incoming message that is without RTI or CSI User parameter switch 05 Bit 1 Memory reception if no RTI or CSI received 0 Possible 1 Impossible If 0 is selected the machine receives al...

Page 65: ...re transmissions until the TX terminal sends DCN to terminate the communication This number is fixed at 9 and is not adjustable If this machine has sent two PPRs for one ECM block it will request one...

Page 66: ...rminal If this machine has sent two consecutive MCFs and detected a good line condition it will request a one step up shift to the sender terminal in the next control channel MCF PPR Fax data Fax data...

Page 67: ...the LCD displays an error message for 20 seconds after transmission Memory transmission When the machine detects one or more blank pages the LCD displays an error message for 20 seconds after completi...

Page 68: ...esend later If transmission failed Resends the remaining pages later Resends the remaining pages later If memory overflows during scanning Stops scanning and erases all the scanned pages from the memo...

Page 69: ...led because the transmission speed is much faster than the scanning speed However if the document contains pages with complicated images or when sending a photo document using halftone using parallel...

Page 70: ...applications Digital image processor Laser interface DMA controller Clock generation Stepper motor control DRAM backup control Fusing lamp control ROM 2MB 16 Mbits flash ROM for system software storag...

Page 71: ...A model Oscillators OSC1 32 768 KHz oscillator for the real time clock The battery on the FCU backs this up OSC2 29 952 MHz oscillator for system scanner and printer clock generation OSC3 28 224 MHz o...

Page 72: ...generation Fusing lamp AC power supply and control Switching Circuit HOT COLD FG 24 V 24 V COM3 COM3 COM3 24 V 1HTORON 1HTON CH2 AC Heater CH1 8 Pin FG AC Inlet Surge Protection Surge Protection Phas...

Page 73: ...the machine is connected to a dry line for back to back tests BR1 Also remove BR1 when the machine is connected to a dry line Ring Detect RING TIP OHDISW Hook0 Hook1 Ex Ring JP5 Ex TDI Ext Tel DP Off...

Page 74: ...L S O O France Norway Holland USA Asia Australia China Taiwan L L H S O O Belgium Germany Switzerland Portugal Israel L H H S O O Ireland South Africa Italy Greece H L H S S S L Low H High S Short 0 O...

Page 75: ...F Function 01 Protocol requirements G3 switch 0B Function 01 Machine s serial number Function 14 Service station s fax number Function 13 PM call System switch 01 bit 0 Function 01 Periodic service ca...

Page 76: ...mmunication Bit Switch 16 bit 2 to 1 Then turn the machine off and on to enable the ISDN unit Print the system parameter list and make sure that SIG4 is listed as an option on the list 6 Input the ini...

Page 77: ...move the G4 unit cover B 1 screw and the ISDN board C 2 screws 3 Remove the G4 cover D 1 screw and the FCU shield plate E 1 screw Connect the counter harness F to the FCU G CN48 Then secure the harnes...

Page 78: ...ver opening Then attach the counter unit to the top cover USA models use the screws that were removed in step 5 8 Secure the mechanical counter N to the bracket 1 screw 9 Connect the counter harness O...

Page 79: ...emove the top cover A 4 screws 1 screw with spring plate NOTE Be careful not to damage the bottom part of the top cover with the scanner cover after removing the spring plate 2 Remove the PCFE cover B...

Page 80: ...he FCU as shown 7 Connect the RS232C harness K to the PCFE board CN1 Bend the cable under the connector as shown 8 Replace the FCU shield plate G4 cover and the top cover 9 Attach the core L to the RS...

Page 81: ...through the bit switches Increment bit switch Decrement bit switch Example Display bit switch 3 x 3 4 Adjust the bit switch Example To change the value of bit 7 press 5 Either Adjust more bit switche...

Page 82: ...h the error codes using or Finish 4 1 4 SERVICE MONITOR REPORT FUNCTION 04 1 then immediately press 2 3 Finish 4 1 5 GROUP 3 PROTOCOL DUMP FUNCTION 05 1 then immediately press 2 3 4 5 Finish FUNCTION...

Page 83: ...he cursor press 5 If you wish to change the data type in the new data Example 80 press Note If you wish to move the cursor press 6 Either View more addresses go to step 4 Finish 4 1 8 RAM DUMP FUNCTIO...

Page 84: ...and the printer and scanner jam counters press To see the scanned and printed page counters press To see the printer and scanner jam counters press again Check the PM counter press Check the TONER co...

Page 85: ...he TX level Refer to section 4 3 for full details on NCU parameters 2 If you change the NCU country code and exit the service mode the Bit SW country code System Bit SW 0F will automatically be change...

Page 86: ...2 3 4 Scroll through the available tests using or 5 6 To stop the test 7 To finish 4 1 14 V 34 MODEM TEST FUNCTION 08 1 then immediately 2 3 4 Scroll through the available tests using or FUNCTION KPA...

Page 87: ...TEST FUNCTION 08 1 then immediately press 2 3 4 5 To stop 6 To finish 4 1 17 OPERATION PANEL TEST FUNCTION 09 1 then immediately press 2 3 4 5 To stop the test press 6 To finish V34 SYMBOL RATE Y 240...

Page 88: ...ument in the feeder then press 5 To stop the test press 6 Finish 4 1 20 PRINTER TEST PATTERNS FUNCTION 11 1 then immediately press 2 3 4 Press a key from to 5 Press A test pattern is printed 6 To fini...

Page 89: ...in the cassette before starting the test 4 1 22 RAM TESTS FUNCTION 12 1 then immediately press 2 3 Either Test the SRAM Press Test the DRAM Press Test the SAF card Press If the test is successful the...

Page 90: ...IC card cover A Connect the Flash memory card B with the software copy tool C Then insert the copy tool into the IC card slot as shown NOTE The switch on the copy tool D must be at the ON position 3 T...

Page 91: ...1 24 SOFTWARE UPLOAD FUNCTION 12 This function copies software from the FCU inside the machine to an external memory card 1 Turn off the machine 2 Connect the Flash memory card and the software copy...

Page 92: ...e SRAM upload fails the display shows CANNOT PROGRAM 8 Finish 9 Turn off the machine and disconnect the tool Then turn the machine back on 4 1 26 SRAM DATA DOWNLOAD This function copies the data store...

Page 93: ...to the optional ISDN G4 board Flash ROM 1 Turn off the machine 2 Connect the Flash memory card and the Flash memory copy tool as shown in section 4 1 22 NOTE The switch D on the tool must be at the O...

Page 94: ...calls from this machine To erase the telephone number press 4 If the display is correct 4 1 29 SERIAL NUMBER FUNCTION 14 1 then immediately press 2 3 Enter the serial number at the keypad To correct...

Page 95: ...ation files e g substitute RX files This is the recommended setting when the SAF requires clearing Reset Level 2 This level erases the following items in addition to those erased by Reset Level 3 own...

Page 96: ...mber RX mode only Total number of burst error lines that occurred during non ECM reception The seventh and eighth numbers are fixed at 00 for transmission records and ECM reception records 3 Line qual...

Page 97: ...ctual RX level is 256 16 16 dB G3 Communication Parameters Mode DCS ITU T standard NSS Non standard G3 Modem rate 336 33600 BPS 168 16800 BPS 312 31200 BPS 144 14400 BPS 288 28800 BPS 120 12000 BPS 26...

Page 98: ...mines whether the machine will send an Auto Service Call to the service station when it is time for PM 1 7 Not used Do not change these settings System Switch 02 No FUNCTION COMMENTS 0 Memory file tra...

Page 99: ...m the CSI 7 Telephone line type programming mode 0 User level 1 Service level 1 Only a service function can program the telephone line type selection System Switch 05 No FUNCTION COMMENTS 0 1 Not used...

Page 100: ...ith Personal Codes by the users will appear on the Personal Code List 5 Power failure report 0 Disabled 1 Enabled 1 A power failure report automatically prints after the power is switched on if a fax...

Page 101: ...3 from G4 if the other end is not a G4 machine 0 PSTN 1 ISDN This bit switch has no effect if Communication Switch 07 bit 0 is set to 0 System Switch 0B No FUNCTION COMMENTS 0 1 Automatic reset timer...

Page 102: ...Cross reference NCU country code Function 08 parameter CC The bit switch country code will automatically be changed to the same country code with the NCU country code when you change the NCU country c...

Page 103: ...s too far to the right the file number which is on the top right of the page may obscure it System Switch 13 Not used do not change any of these settings System Switch 14 Not used do not change any of...

Page 104: ...PC memory transmission when the destination is not selected from the Quick or Speed Dials 0 G3 1 G4 If an ISDN kit has been installed this bit determines whether PC memory transmissions go out over G3...

Page 105: ...s or makes copies 1 The machine scans the document in 15 4 line mm steps 6 7 Not used Do not change these settings Scanner Switch 01 Not used do not change any of these settings Scanner Switch 02 Not...

Page 106: ...f 1 The final few mm of the previous page are printed at the top of the next page See section 2 2 12 for details 2 7 Not used Do not change the settings Printer Switch 01 No FUNCTION COMMENTS 0 Reset...

Page 107: ...age separation and data reduction section 2 2 12 1 3 Not used Do not change these settings 4 to 7 Page separation threshold with reduction disabled in switch 03 bit 0 above If the incoming page is up...

Page 108: ...Not used Bit7 Not used SW04 SW05 Reduction Ratio 1 0 4 3 0 1 8 7 1 0 12 11 Printer Switch 06 Not used do not change any of these settings Printer Switch 07 Not used do not change any of these settings...

Page 109: ...default If this bit is 0 JBIG optional mode is switched off for reception Change the setting when communication problems occur using the JBIG compression This switch is effective only in the USA mode...

Page 110: ...ser if a phone call comes in 5 Not used Do not change the setting 6 7 Maximum printable page length available Bit 7 Bit 6 Setting 0 0 No limit 0 1 B4 1 0 A4 1 1 Not used The receiving terminal informs...

Page 111: ...red if ECM is in use Communication Switch 04 Not used do not change any of these settings Communication Switch 05 Not used do not change any of these settings Communication Switch 06 No FUNCTION COMME...

Page 112: ...tion 1 The machine will always start to transmit with G4 4 Fallback from G4 to G3 when G4 communication fails on the ISDN B channel 0 Fallback disabled Default 1 Fallback enabled 1 Enable this switch...

Page 113: ...tch 0E No FUNCTION COMMENTS 0 to 7 Minimum interval between automatic dialing attempts 06 to FF Hex unit 2 s e g 06 H 12 s This value is the minimum time that the machine waits before it dials the nex...

Page 114: ...s Communication Switch 16 No FUNCTION COMMENTS 0 1 Not used Do not change the settings 2 Optional G4 unit 0 Not installed 1 Installed 1 Change this bit to 1 when installing the optional G4 unit 3 5 No...

Page 115: ...of these settings Communication Switch 1C Not used do not change any of these settings Communication Switch 1D Not used do not change any of these settings Communication Switch 1E Not used do not cha...

Page 116: ...ot receive extended DIS frames 5 Not used Do not change this setting 6 CED ANSam emission 0 Enabled 1 Disabled Do not change these settings unless the any communication problem is caused by the CED AN...

Page 117: ...ode PPR x 1 1 ITU T mode PPR x 4 When using ECM the machine will choose a slower modem rate after receiving PPR once Ricoh mode or four times ITU T mode This bit is ineffective in V 34 communications...

Page 118: ...r 9 6 k or 7 2 KBPS Bit 5 Bit 4 Setting 0 0 V 29 0 1 V 17 1 0 Not used 1 1 Not used These bits set the initial modem type for 9 6 k and 7 2 kbps if the initial modem rate is set at these speeds 6 7 No...

Page 119: ...g the cable equalizer if one or more of the following symptoms occurs Communication error Modem rate fallback occurs frequently Note This setting is ineffective in V 34 communications 2 3 PSTN cable e...

Page 120: ...g if there is signal loss at higher frequencies because of the length of wire between the modem and the telephone exchange Also try using the cable equalizer if one or more of the following symptoms o...

Page 121: ...re time to send data Refer to error code 0 20 7 Not used Do not change this setting G3 Switch 0B FUNCTION COMMENTS 0 Protocol requirements Europe 0 Disabled 1 Enabled 1 Protocol requirements Spain 0 D...

Page 122: ...rks 81E500 Country code for NCU parameters Use the Hex value to program the country code directly into this address or use the decimal value to program it using Function 08 parameter C C Country Decim...

Page 123: ...F PSTN ring back tone detection time 20 ms Detection is disabled if this contains FF H 81E510 PSTN ring back tone off detection time 20 ms 81E511 PSTN detection time for the silent period after ring b...

Page 124: ...If both addresses contain FF H tone detection is disabled 81E525 PABX detection time for the silent period after ring back tone detected high 20 ms If both addresses contain FF H tone detection is di...

Page 125: ...International dial tone reset time low 81E53A International dial tone reset time high 81E53B International dial tone continuous tone time 81E53C International dial tone permissible drop time 81E53D I...

Page 126: ...one off time Function 08 parameter 18 81E552 Tone attenuation level of DTMF signals while dialing high frequency group N x 0 5 3 5 dBm Function 08 parameter 19 See Note 7 81E553 Tone attenuation value...

Page 127: ...table ringing signal frequency range 1 lower limit Function 08 parameter 03 81E574 Acceptable ringing signal frequency range 2 upper limit Function 08 parameter 04 81E575 Acceptable ringing signal fre...

Page 128: ...6 Acceptable CNG detection frequency upper limit high byte 81E5A7 Acceptable CNG detection upper frequency upper limit low byte BCD Hz If both addresses contain FF H tone detection is disabled 81E5A8...

Page 129: ...5 PSTN 1100 Hz tone transmission level N 81E5B4 0 5N 81E5B5 3 5 dBm 81E5B6 PSTN 2100 Hz tone transmission level N 81E5B4 0 5N 81E5B6 3 dBm 81E5B7 PABX Tx level from the modem dBm 81E5B8 PABX 1100 Hz t...

Page 130: ...address 81E533 81E50B if bit 0 1 or 81E53B if bit 2 1 on time hex code unit 20 ms 81E50C if bit 0 1 or 81E53C if bit 2 1 off time hex code unit 20 ms 5 Pulse dial parameters addresses 81E54A to 81E54...

Page 131: ...f System Bit Switch 04 to 1 2 Either use Function 31 for a Quick Dial number or Function 32 for a Speed Dial number Example Change the Parameters in Quick Dial 10 3 4 Press the Quick Dial key 10 Note...

Page 132: ...e better 4 TX level setting 0 Enabled 1 Disabled bits 0 to 4 must all be at 1 to disable 0 When enabling the TX level setting change this bit to 0 then change the settings of bits 0 through 3 above 1...

Page 133: ...ly 1 0 Not used 1 1 Disabled The machine uses inch based resolutions for scanning If inch only is selected the printed copy may be slightly distorted at the other end if that machine uses mm based res...

Page 134: ...of G4 parameter switch 6 bit 0 setting is used 4 7 Not used Do not change the settings Switch 10 Optional ISDN G4 unit required FUNCTION COMMENTS 0 Attachment of the Higher Layer Capabilities 0 Yes 1...

Page 135: ...checksum low 800019 H Total program checksum high 80001A H Boot program checksum low 80001B H Boot program checksum high 80001C H Main program checksum low 80001D H Main program checksum high 80001E...

Page 136: ...result report immediate transmissions 0 Off 1 On Bit 6 Polling clear report 0 Off 1 On Bit 7 Journal 0 Off 1 On 8000A4 H User parameter switch 04 Bit 0 Confidential reception report 0 Off 1 On Bits 1...

Page 137: ...specified cassette 1 1 Faxes from senders whose RTIs CSIs are not specified for this feature are printed to the paper in a specified cassette Bits 6 and 7 Forwarding optional memory card required Bit...

Page 138: ...irect reception and the PC does not receive the message 0 Do not receive in the memory 1 Receive in the memory Bits 2 to 5 Not used Bit 6 Action when the received Higher Layer Capabilities is Tel or B...

Page 139: ...D 0 F0 0 F0 00 00 99 99 8000BF H User function 63 setting SWusr_1F Bit 0 PC fax reception 0 Disabled 1 Enabled Bit 1 to 7 Not used 8000C0 to 8000CF H G4 Parameter switches 8000D0 to 8000EF H G4 Intern...

Page 140: ...8 H Clock 00 H 12 hour clock AM 01 H 24 hour clock 02 H 12 hour clock PM 8001D9 H Year BCD 8001DA H Month BCD 8001DB H Day BCD 8001DC H Hour 8001DD H Minute 8001DE H Second 8001DF H 00 Monday 01 Tuesd...

Page 141: ...C JAM 80023E to 800241 H Fusing exit jam counter EJECT JAM 800242 to 800245 H Registration jam counter PAPER JAM 80024A to 80024D H PM counter PM 80024E to 800251 H PM call interval default 60 000 PM...

Page 142: ...ting 2 for Tuesday 80030A to 80030C H Setting 1 for Wednesday 80030D to 80030F H Setting 2 for Wednesday 800310 to 800312 H Setting 1 for Thursday 800313 to 800315 H Setting 2 for Thursday 800316 to 8...

Page 143: ...canning top margin adjustment 8002B8 to 8002B9 H Scanning bottom margin adjustment Refer to section 6 12 for details 800438 H Excessive jam alarm Bit 3 Scanner excessive jam alarm 1 An alarm has occur...

Page 144: ...sing unit failure 21 H Laser power is out of the specified range 3X H Polygonal mirror motor failure 5X H Power pack failure When a service call was caused by a fusing lamp failure codes 0X After fixi...

Page 145: ...byte Day BCD 6th byte Hour BCD 7th byte Minute BCD 8th and 9th bytes Communication time 8th byte Minutes BCD 9th byte Seconds BCD 10th byte Not used 11th and 12th bytes Number of pages transmitted or...

Page 146: ...4 Setting 0 0 0 1 V 27ter 0 0 1 0 V 27ter V 29 0 0 1 1 Not used 0 1 0 0 V 27ter V 29 V 17 0 1 0 1 V 27ter V29 V 17 V 34 Other settings Not used 20th to 22nd byte Not used 23rd to 46th byte Remote term...

Page 147: ...th error code and page number where the error occurred 67th to 70th byte 5th error code and page number where the error occurred 71st to 74th byte 6th error code and page number where the error occurr...

Page 148: ...for Quick 01 811890 to 811899 H Dedicated tx parameters for Quick 02 8118B0 to 8118B9 H Dedicated tx parameters for Quick 03 811C10 to 811C19D H Dedicated tx parameters for Quick 30 811C30 to 811C39 H...

Page 149: ...Printer Item 30K 60K 90K Notes Paper Feed Roller C user C C user Soft cloth and water Separation Pad C user R C user Soft cloth and water Fusing Thermistor R Hot Roller Strippers R 4 pieces used Hot R...

Page 150: ...starting disassembly be sure to print all message files in the SAF memory Then turn off the main switch and disconnect the power cord for safety Lithium Battery The danger of explosion exists if a ba...

Page 151: ...connectors 1 grounding wire and 2 hooks 6 2 ADF 6 2 1 FEED ROLLER ASSEMBLY A ADF Roller Cover 2 hooks B Feed Roller Assembly NOTE If installing a feed belt C be sure that the side with the white paint...

Page 152: ...stment 6 2 2 SEPARATION ROLLER A Separation Roller 6 3 SCANNER 6 3 1 SCANNER UNIT DISASSEMBLY First remove the top cover and the operation panel A Stopper 1 screw B ADF Upper Unit 1 screw with groundi...

Page 153: ...rew B Scanner Belt Bracket 1 screw 1 belt stopper D C Scanner Belt 1 E ring 1 belt stopper E NOTE When removing the scanner belt bracket B be careful not to lose the belt stopper D When replacing the...

Page 154: ...crews 1 connector C FCU Cover 2 screws G4 Interface Cover D 6 3 3 R1 R2 ROLLERS A R1 Roller 1 E ring 1 belt stopper 1 gear clipped on the shaft 2 plastic clips 2 bushings B R2 Roller 1 E ring 1 belt s...

Page 155: ...B and C 6 3 5 SCANNER UNIT First remove the top cover and the FCU cover refer to section 6 3 2 A Scanner Unit 2 hooks 4 connectors 1 screw with grounding wire NOTE When placing the cables in the clamp...

Page 156: ...ment 6 4 LASER PRINTING COMPONENTS 6 4 1 LASER UNIT First remove the top cover and then lift the NCU bracket A 3 screws B Laser Unit 2 connectors 1 spring rod H547R527 WMF H547R523 WMF A You do not ne...

Page 157: ...LASER PRINTING COMPONENTS 21 May 1999 6 8 WARNING Laser beams can cause permanent eye damage Do not open the laser unit or look along the laser beam path while the main power is on H547R500 WMF...

Page 158: ...21 May 1999 DEVELOPMENT 6 9 Replacement Adjustment 6 5 DEVELOPMENT 6 5 1 TRANSFER ROLLER First open the scanner unit then remove the cartridge A Transfer Roller 1 gear 2 clips H547R525 WMF A...

Page 159: ...FUSING 21 May 1999 6 10 6 6 FUSING 6 6 1 FUSING UNIT First remove the top cover Then remove the FCU cover A B Fusing Unit 2 screws 2 connectors H547R527 WMF H547R526 WMF A B...

Page 160: ...Replacement Adjustment 6 6 2 THERMISTOR A Thermistor Cover 4 hooks B Thermistor 1 screw 6 6 3 HOT ROLLER STRIPPERS A Hot Roller Strippers 1 spring each NOTE Be careful not to lose the springs H547R513...

Page 161: ...nstalling a new fusing lamp be sure that it is installed the correct way around as shown CAUTION Be careful not to touch the glass surface First remove the bracket B and 2 screws C then the fusing upp...

Page 162: ...ESSURE ROLLER A Bracket 2 screws NOTE Fit the projections C into the holes D when replacing this bracket B Pressure Roller 6 6 6 THERMOSTAT AND THERMOFUSE A Thermostat 2 screws B Thermofuse 2 screws E...

Page 163: ...May 1999 6 14 6 7 PCBs 6 7 1 NCU First remove the Top Cover A NCU 2 screws 1 connector 6 7 2 PSU First remove the Top Cover A NCU Bracket 2 screws B PSU 3 screws 2 connectors H547R529 WMF H547R530 WM...

Page 164: ...ng wire 1 connector 6 7 4 FCU When replacing the FCU upload the RAM data from the old FCU using service function 12 refer to section 4 1 24 and copy the data to the new FCU refer to section 4 1 25 Fir...

Page 165: ...PAPER FEED 21 May 1999 6 16 6 8 PAPER FEED 6 8 1 SEPARATION PAD A Separation Pad Assembly B Separation Pad H547R507 WMF H547R508 WMF B A...

Page 166: ...ously remove them now See section 6 7 Then remove the Main Frame A A Main Frame 4 screws B Paper Feed Unit Assembly 4 screws C Paper Feed Motor 1 short screw with spacer and grounding wire 1 screw wit...

Page 167: ...RT ROLLER First remove the Paper Feed Unit Assembly A Transport Roller 3 plastic clips 2 bushes 2 gears B Paper Feed Roller 1 clip 1 bush 2 plastic clips C Rear Cover Sensor 1 screw D Paper Feed Clutc...

Page 168: ...6 19 Replacement Adjustment 6 9 OTHERS 6 9 1 INTERLOCK SWITCHES First remove the Top Cover then remove the FCU see section 6 7 4 A Interlock Switch 24V 1 screw B Interlock Switch 5V 1 screw H547R540 W...

Page 169: ...AIN MOTOR First remove the Top Cover then remove the Laser Unit see section 6 4 1 and the FCU see section 6 7 4 A Stay 1 screw B Main Motor 2 screws NOTE Do not remove the damper C because it is facto...

Page 170: ...replacing the Right Bracket A do not forget to put back the coupled gear B and microswitch C Remove the Rear Lower Cover then stand the Main Frame on its side as shown NOTE Do not let the gears drop w...

Page 171: ...OTHERS 21 May 1999 6 22 6 9 4 TONER END SENSOR A Toner End Sensor 1 connector H547R541 WMF A...

Page 172: ...clips 2 bushings 1 gear 6 10 2 PAPER FEED ROLLER AND PAPER FEED CLUTCH First remove the mainframe then remove the Right Cover A B Paper Feed Roller 2 plastic clips 2 bushings C Paper Feed Clutch 1 con...

Page 173: ...PAPER FEED UNIT OPTIONAL 21 May 1999 6 24 6 10 3 CONNECTOR A Connector 2 clips NOTE When installing the connector A the side with the small hole must face the outside of the machine H547R503 WMF A...

Page 174: ...APER FEED CLUTCH AND SOLENOID First remove the Top Cover Assembly A 1 screw 6 hooks B Paper Feed Roller 3 plastic clips 1 bushing 1 E ring C Paper Feed Clutch D Separation Pad 1 spring E Solenoid 1 sc...

Page 175: ...MULTI PURPOSE FEEDER OPTIONAL 21 May 1999 6 26 6 11 2 PCB First remove the Top Cover Assembly A 1 screw 6 hooks and turn it over B PCB 1 connector H547R505 WMF A B...

Page 176: ...scription Adjustable by Scanning Printing W1 Left margin Adjustable Adjustable W2 Print Scan width Not adjustable Not adjustable L1 Top margin Adjustable Adjustable L2 Print Scan length Not adjustable...

Page 177: ...of scanner motor steps after the scan line sensor is activated To increase the margin by x mm New setting Current setting 7 7x To decrease the margin by x mm New setting Current setting 7 7x 800826 H...

Page 178: ...increase the margin by x mm New setting Current setting x 0 5 To decrease the margin by x mm New setting Current setting x 0 5 When the user sets the margin in the main scan direction with a User Fun...

Page 179: ...rrent setting x 0 32 To decrease the margin by x mm New setting Current setting x 0 32 When the user sets the margin in the sub scan direction with a User Function the margin is added to this setting...

Page 180: ...s and dots but also makes dust more obvious 1 Thin lines may not reproduce clearly 5 Edge enhancement 0 Off 1 On This bit is for halftone mode only 0 Suitable for photo originals 1 Suitable for origin...

Page 181: ...EE H 1 1 0 1 0 0 0 0 Halftone AID off 800CF6 H 1 0 1 1 0 0 0 0 AID Auto Image Density NOTE Do not change bits in the shaded part of the table Background detection threshold Bit No FUNCTION COMMENTS 0...

Page 182: ...edures may not be exhaustive but they may help you to find the problem First distinguish whether the problem is caused by the remote terminal or by your machine If your machine causes the problem dete...

Page 183: ...if there is toner on the surface of the development roller If there is do the following If not go to step 4 Check to see if the laser optic components are properly positioned 4 Check to see if the car...

Page 184: ...le Cause Printer Poor drum sensitivity The charge is improperly applied The hot roller is dirty Action 1 Try replacing the cartridge 2 Check to see if the hot roller surface is dirty If it is clean th...

Page 185: ...deformed toner metering blade Uneven toner supply in the toner hopper Action 1 Print a solid black test pattern and open the cover in the middle of printing 2 If the image is lighter in the center of...

Page 186: ...or element s Dirt or dust on the exposure glass Dirty white roller in the ADF Action 1 Clean the exposure glass and the shading white roller 2 Replace the contact image sensor Possible Cause Printer D...

Page 187: ...21 May 1999 7 6 7 1 6 HORIZONTAL BLACK LINES Possible Cause Printer The drum surface is scratched or damaged Action 1 Check to see if the surface of the drum is damaged Change the cartridge if damage...

Page 188: ...on Replace the image sensor Possible Cause Printer The laser optic components are dirty The hot roller stripper scrapes off toner from the print paper Damaged cleaning blade Action Clean the laser opt...

Page 189: ...transfer current is unstable Action 1 Print a test pattern and open the cover in the middle of printing 2 Check to see if horizontal white lines where toner is not adhered appear on the drum surface o...

Page 190: ...9 BLACK DOTS SPOTS Possible Cause Scanner Dust on the exposure glass Action Clean the exposure glass Try disabling MTF Possible Cause Printer The drum surface is damaged this is likely if the dots app...

Page 191: ...rface is damaged this is likely if the dots appear at 75 4 mm intervals The development roller surface is damaged this is likely if the dots appear at 36 7 mm intervals The toner application roller su...

Page 192: ...ss Incorrect scan threshold Contact image sensor LED sensor element defect Action Clean the white roller in the ADF Adjust the scan threshold settings Replace the image sensor Possible Causes Printer...

Page 193: ...ears faint If it does check or replace the fusing lamp thermistor and PSU If it does not go to step 3 3 Check to see if the toner on the drum looks faint If it does go to step 4 If it does not check t...

Page 194: ...QUALITY TROUBLESHOOTING 7 13 Trouble shooting 7 1 12 VERTICAL BLACK BAND Possible Cause Printer A deformed damaged or incorrectly positioned toner metering blade Action Replace the cartridge H547T505...

Page 195: ...tion 1 Check to see if the correct type of paper and toner are in use If it is go to step 2 If not use recommended types of paper and toner 2 Try replacing the fusing lamp and the hot and or pressure...

Page 196: ...a time If not go to step 2 2 Check to see if the fusing pressure roller is dirty with toner If it is clean the fusing pressure roller If not check for any other dirty rollers and clean them 7 1 16 INC...

Page 197: ...y 1999 7 16 7 1 17 INCORRECTLY ALIGNED OUTPUT REDUCED IMAGE Possible Cause Improper print margin sub scan direction Dirty registration roller Action Adjust the sub scan print margin Refer to Section 6...

Page 198: ...ical clutch mechanism for document pick up is defective Incorrect positioning of the separation roller The scanner motor is defective Action 1 Check whether a correct document type is being used 2 Che...

Page 199: ...The scan line sensor is defective Defective scanner motor Action 1 Check whether a correct document type is being used and that the document length is within the maximum limit 2 Check for obstruction...

Page 200: ...The separation roller is out of position Action 1 Check whether a correct document type is being used 2 Check that the operation panel is closed securely and that the document guide is set properly 3...

Page 201: ...heck whether a correct paper type is being used 2 Check that the paper cassette end fence is set correctly and check the paper lift mechanism 3 Check that the feed clutch for the cassette is working p...

Page 202: ...g used and whether the paper end fence and guides are set correctly 2 Check for obstructions in the paper path 3 Check the registration roller and its mechanism Clean or replace if necessary 4 Check t...

Page 203: ...Malfunction in the hot roller stripper s mechanism Malfunction in the pressure mechanism in the fusing unit Action 1 Check whether a correct type of paper is being used 2 Check for obstructions in the...

Page 204: ...e are set correctly 3 Check that the separation pad is set correctly 4 Check if the paper feed roller is installed correctly and clean Replace if necessary 5 Check for obstructions in the paper path 6...

Page 205: ...9 22 08 0 08 Fusing unit failure thermistor error 9 22 09 0 09 Fusing unit failure fusing lamp at high temperature in energy saver mode 9 22 0A 0 0A The machine detects that both jumper 63 and jumper...

Page 206: ...ed at RAM address 8004B1 H Check the error code history using service function 03 Try to clear the service call condition for failures which are not related to the fusing unit switch the power off wai...

Page 207: ...party is out of paper or has a jammed printer The other party pressed Stop during communication 0 03 Incompatible modem at the other end The other terminal is incompatible 0 04 CFR or FTT not received...

Page 208: ...Check the line connection Check the FCU NCU connectors Replace the NCU or FCU The other end may have jammed or run out of paper or memory space Try adjusting the TX level and or cable equalizer setti...

Page 209: ...arrier drop time default 0 2 seconds Check the line connection Check the FCU NCU connectors Replace the NCU or FCU Defective remote terminal Check for line noise or other line problems Try adjusting t...

Page 210: ...to noise etc ANSam was too short to detect Check the line connection and condition Try receiving a call from another V 8 V 34 fax 0 75 Calling terminal fell back to T 30 mode because it could not dete...

Page 211: ...FCU 0 85 Abnormal signaling in V 34 control channel restart disconnected the line The signal did not stop within 10 seconds Turn off the machine then turn it back on If the same error is frequent rep...

Page 212: ...as pulled out during printing Close the cover or put back the cassette 2 10 The modem cannot enter TX mode Replace the FCU 2 11 Only one V 21 connection flag was received Change the FCU 2 12 Modem clo...

Page 213: ...end may be defective 5 00 Data reconstruction not possible Replace the FCU 5 10 DCR timer expired Replace the FCU 5 20 Storage impossible because of a lack of memory 5 21 Memory overflow Temporary mem...

Page 214: ...ceived Check for a noisy line Adjust the TX levels of the communicating machines See code 6 05 6 10 G3 ECM error frames still received at the other end after all communication attempts at 2400 bps Che...

Page 215: ...at the cassette entrance Check the paper feed mechanism and sensors Cross reference Printer mechanical problems Section 7 2 2 9 60 Printer error occurs during reception If substitute reception is swit...

Page 216: ...CLEAR COPY at power up Fusing exit sensor ON The LCD displays CLEAR COPY soon after the start of copying Toner end sensor ON The LCD displays SET TONER at power up Paper end sensor standard cassette O...

Page 217: ...d 5 COM1 VIDEO Print Data 5PGSYCI Laser Synchronization Signal TXOUTA 24VMM TXOUTAB TXOUTB 24VMM TXOUTBB MMOUTA 24VMM MMOUTAB MMOUTB 24VMM MMOUTBB RXOUTA 24VMM RXOUTAB RXOUTB 24VMM RXOUTBB 5V 5PAPEND3...

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