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10 October, 2002

TOP COVER

3-11

eplacement

3.13 TOP COVER

1. Before removing the top cover, you should remove:

– OPE cover (

☛

3.2)

– Rear cover (

☛

3.12)

2. Remove both screws securing the top

cover from the backside of the
machine.

3. Remove both screws and slide both the

left and right paper guides fully inward.

4. Spread the bottom of the top cover and

lift the cover to remove.

H911R925.WMF

Paper guides

H911R926.WMF

Содержание LF110

Страница 1: ...MODEL L1A L1B Machine Code H911 H912 SERVICE MANUAL 10 October 2002 Subject to change...

Страница 2: ...placement parts should be used according to the specifications 2 Be careful not to omit any switches covers or safety devices when reinstalling or assembling the product after repair 3 Replacing Preca...

Страница 3: ...ug and printer cable from the printer 5 Use original parts only when replacing parts 6 Do not force open plastic material components 7 Be careful that small parts such as screws do not fall into the p...

Страница 4: ...ic charge buildup 3 Use only a grounded tip soldering iron to solder or de solder ESDs 4 Use only an antistatic solder removal device Some solder removal devices not classified as antistatic can gener...

Страница 5: ...3 14 PAPER TRAY 3 12 3 15 LSU ALSO KNOWN AS LASER UNIT 3 12 3 16 TRANSFER ROLLER 3 13 3 17 ENGINE BOARD 3 13 3 18 PICKUP ROLLER ASS Y 3 14 3 19 KNOCKUP ASS Y 3 15 3 20 CAP PAD 3 15 3 21 HOLDER PAD 3 1...

Страница 6: ...NOT PERIODIC 4 16 4 5 13 PARTIAL BLANK IMAGE PERIODIC 4 17 4 5 14 IRREGULAR DENSITY 4 18 4 5 15 WHITE SPOT 4 18 4 5 16 TREMBLING AT THE END WHEN OHP PRINTING 4 19 4 5 17 POOR FUSING GRADE 4 19 4 5 18...

Страница 7: ...8 RECEIVED JOURNAL 5 8 PHONEBOOK 5 8 SENDING CONFIRM 5 8 SCHEDULE INFORM 5 8 SYSTEM DATA 5 8 PROTOCOL LIST 5 9 PATTERN PRINT 5 9 SHADING PRINT 5 10 5 1 7 ENGINE TEST MODE 5 11 5 2 PROGRAM DOWNLOAD 5...

Страница 8: ...10 October 2002 INSTALLATION 1 1 Installation 1 INSTALLATION Refer to the operating instructions for details...

Страница 9: ...tions and actual use will vary these factors The cycle period given below is for reference only Component Cleaning Cycle Replacement Cycle Done By ADF Rubber Plate As Needed 10 000 Pages User White Ro...

Страница 10: ...ibes procedures on how to disassemble re assemble parts for this machine However some components are not available as service parts In this case it is recommended that you replace the entire unit Befo...

Страница 11: ...n on both sides of the machine and open the front cover 2 Remove the two stoppers holding the front cover unit and unplug one connector and one wire 3 Pull the bottom left end of the cover downward to...

Страница 12: ...ORT 3 3 Replacement Adjustment 4 Remove both screws securing the bracket scan board Remove the bracket scan board 5 Unplug both connectors and the single wire from the scan board 6 Lift the OPE cover...

Страница 13: ...over 3 2 2 Push the bushing on the end of the roller slightly inward and then rotate it until it reaches the slot Then lift the roller out NOTE Check the roller for any dirt If dirty wipe it with soft...

Страница 14: ...Driver H911R912 WMF NOTE When reassembling the unit be sure that the Rubber ADF and Holder Rubber fit into the guide boss The Holder Rubber latches fit into the corresponding hole Push firmly until it...

Страница 15: ...2 Remove the four screws securing the OPE board 3 Release both latches securing the LCD as well the two of four latches securing the board 4 Remove the OPE Board 3 6 LEVER SENSOR DOC ALSO KNOWN AS S1...

Страница 16: ...S2 SENSOR 1 Push both sides of Lever Sensor Scan inward 2 Unlatch and take out the Lever Sensor Scan from the scan upper frame 3 8 SCAN BOARD 1 Before removing the Scan Board you should remove Bracke...

Страница 17: ...embling the Scan Motor you should remove OPE cover 3 2 Bracket Scan Board 3 2 2 Unplug the single connector from the scan board 3 Remove all three screws 4 Remove the Motor Ass y from the main frame 5...

Страница 18: ...3 10 ADF ROLLER 1 Before removing the ADF Roller you should remove OPE cover 3 2 2 Remove both screws securing the guide paper and remove the guide paper 3 Remove the ADF Roller from the scan front f...

Страница 19: ...ingle screw 2 Push the CIS as shown 3 Separate the CIS from CIS Ass y 3 12 REAR COVER 1 Remove both screws 2 Push the metal clip on the parallel port down and remove the rear cover from the main frame...

Страница 20: ...hould remove OPE cover 3 2 Rear cover 3 12 2 Remove both screws securing the top cover from the backside of the machine 3 Remove both screws and slide both the left and right paper guides fully inward...

Страница 21: ...Top cover 3 13 2 Remove the tray from the main frame 3 15 LSU ALSO KNOWN AS LASER UNIT 1 Before removing the LSU you should remove OPE cover 3 2 Rear cover 3 12 Top cover 3 13 2 Remove the three scre...

Страница 22: ...the front cover 2 Lift the transfer Roller using a suitable tool Screw Driver and take out the Roller 3 17 ENGINE BOARD 1 Before removing the Engine board you should remove OPE cover 3 2 Rear cover 3...

Страница 23: ...lug all connectors from the engine board 3 Remove the four screws securing the upper plate 4 Remove the upper plate as shown 5 Remove both screws And remove the roller from the plate NOTE When reassem...

Страница 24: ...Top cover 3 13 LSU 3 15 Upper Plate 3 18 2 Pull the Knockup Ass y fully backward 3 Remove the Knockup Ass y from the main frame 3 20 CAP PAD 1 Before removing the Cap pad you should remove OPE cover...

Страница 25: ...Upper Plate 3 18 Knock up Ass y 3 19 Cap Pad 3 20 2 Remove the holder pad from the main frame 3 22 MAIN MOTOR ASS Y 1 Before removing the Main Motor Ass y you should remove OPE cover 3 2 Rear cover 3...

Страница 26: ...sure that the boss shown in the figure fits into the corresponding screw holes on the Motor Ass y This will allow the screws to be fastened properly 3 23 COOLING FAN 1 Before removing the fan you sho...

Страница 27: ...embling make sure that the direction of the gear is correct 2 Release both snap fits and remove the Gear Pickup Ass y from the main frame 3 25 SOLENOID 1 Before removing the solenoid you should remove...

Страница 28: ...screws and single connector from the HVPS board and then remove the board NOTE When reassembling make sure that all five springs to be used as connection terminals are set properly 3 27 HOOK BOARD 1 B...

Страница 29: ...ot replace any components inside the fusing unit such as thermistor hot roller stripper pawls fusing lamp etc 1 Before removing the Fusing Unit Ass y you should remove OPE cover 3 2 Rear cover 3 12 To...

Страница 30: ...ver 3 2 Rear cover 3 12 Top cover 3 13 Fusing Unit Ass y 3 28 2 Lift and remove the pressure roller from the main frame 3 30 ACTUATOR EXIT 1 Before removing the actuator exit you should remove OPE cov...

Страница 31: ...n in the illustration 3 Remove six screws securing the Shield Engine Ass y 4 Remove the Shield Engine Ass y from the main frame 3 32 SMPS BOARD ALSO KNOWN AS POWER SUPPLY UNIT 1 Before removing the SM...

Страница 32: ...move the single connector that connects the speaker to the main board as well as both screws securing the speaker 3 Remove the speaker 3 34 LIU BOARD ALSO KNOWN AS NCU 1 Before removing the LIU board...

Страница 33: ...lease the four snap fits securing the sensor board and unplug the single connector from the main board 3 Remove the sensor board 3 36 MAIN BOARD 1 Before removing the main board you should remove Rear...

Страница 34: ...re removing the actuator empty feeder you should remove Rear cover 3 12 Shield Engine Ass y 3 31 2 Remove the single connector from the main board and both screws securing the holder feed Ass y 3 Remo...

Страница 35: ...3 2 Rear cover 3 12 Top cover 3 13 Main Motor Ass y 3 22 2 Release both snap fits and remove the gear feed clutch feed and the spring clutch 3 Rotate the pick up bushing as shown 4 Remove Holder Feed...

Страница 36: ...m unit can be measured 3 Screw Drivers Standard type type M3 long M3 short M2 long M2 short 4 Pinset Standard General home use small type 5 Cotton Swabs Standard General home use or medical service 6...

Страница 37: ...s wait an hour or so for the line to clear then try again Or turn the ECM mode on LOAD DOCUMENT You have attempted to set up a sending operation with no document loaded Load a document and try again L...

Страница 38: ...l a previously busy station You can press Start Enter to immediately redial or Stop to cancel the redial operation SEND ERROR Your fax has not gone through successfully A problem with the facsimile co...

Страница 39: ...l toner count and CRU state information TOTAL TONER COUNT The total number of the dots used to print up to current time CRU STATE The number of pages the toner cartridge can print 2 Replace Main board...

Страница 40: ...ter replacing AIO OK after replacing the LSU YES YES NO NO NO Any obstacles ON mirror lens of LSU and laser path Replace the AIO Remove the obstacles YES YES NO Remove part on the paper path causing t...

Страница 41: ...U might be misplaced so the light path to the OPC deviates Repair or replace the LSU or remove any defective matters in the machine YES YES NO Take out the cartridge and prepare the tester for electro...

Страница 42: ...oller into its place This could occurs when the power of LSU is low or the density is low due to the obstacles on the window Replace the LSU or clean the window YES Transfer voltage OK on the transfer...

Страница 43: ...ormal charging developing transfer Any obstacles on the gab between high voltage terminal and AIO Transfer roller works OK OK after replacing the LSU Replace the AIO Replace the AIO OK after setting t...

Страница 44: ...black in printing area Is transfer voltage supplied 1 55kV YES YES Check the path among video controller engine board HVPS LSU for the shortage or open Repair or replace the boards NO NO NO Is the Hs...

Страница 45: ...he black part is far close to the top User the pattern which has the image below bigger than 10 mm from the top YES NO NO Dirt of dust stuck onto the window of internal lens of LSU Clean it or replace...

Страница 46: ...the defective component NO YES Works cor with 350V of Bias voltage Dark selected vial RCP Same at Normal Works correctly after replaced the LSU Toner over supply due to the adjustment fault of meteri...

Страница 47: ...al blade or supplying part of the AIO is defective Replace the AIO YES Transfer charge and developing voltage are OK Operating storage atmosphere is too high temperature humidity Solve the problem und...

Страница 48: ...condition Irregularity of NIP betwenn rollers in AIO Replace the AIO YES There may be a problem in toner layer control in AIO Replace the AIO Clean hot roller or replace the Fusing unit Repair or rep...

Страница 49: ...interval of 75 4 mm Does the same problems persist END Bad image removes by scratching Remove obstacles stuck on OPC drum s surface Perform the OPC cleaning using the control panel buttons Check tone...

Страница 50: ...ct sunlight for around 5 minutes If the same problem persists in 10 hours replace the AIO NO NO NO 75 4 mm interval This occurs when no Hsync at LSU Replace the LSU Heat roller is ruined Replace the F...

Страница 51: ...NO NO YES YES Paper path is clear H911T921 WMF NO Is it not over the guaranty life of dot counter YES Install the AIO correctly Is the AIO installed correctly Transfer roller workds properly Replace...

Страница 52: ...it regular interval of 47 1mm OK after replacing the transfer roller Replace the AIO Clean the contract point of transfer roller Check the output of high voltage terminal and adjust or replace if requ...

Страница 53: ...n Replace LSU Irregularity of toner supply from the AIO Replace the AIO Defective agitator in the toner supplying part of AIO Replace the AIO Check if the guide deve spring works OK and repair replace...

Страница 54: ...NO YES The paper used is too thick or contains too much cotton in it Re test with the recommended paper The machine placed under the severe low temperature for a long time After printing completed an...

Страница 55: ...on LEDs blink once when powered on The On Line key is being pressed or shortage on the panel board Supply the power as the rating Connections on board are OK Fusing unit of SMPS if open Shortage betwe...

Страница 56: ...e it Thermostat is open due to the heat etc Replace the Fusing unit END NO NO YES Less than 10W Measure the resistance at the both ends of AC Line with covers open AC is being supplied Thermistor conn...

Страница 57: ...he solenoid defected Replace it NO Sounds the solenoid on when starts print Does the paper move Does the paper move more than 100 mm The pick up unit is assembled wrong Re assemble or replace the unit...

Страница 58: ...fore the fusing unit The actuator of paper exit sensor works OK Is the paper rolled around the pressure roller Remove the fuser remove the paper and replace the pressure roller if necessary Feeds mult...

Страница 59: ...y again to connector or Replace the connector Replace the MAIN B D Replace the LSU Replace the MAIN B D Replace the LSU END NO NO NO NO NO YES YES YES YES YES Check MAIN B D CN9 3 P_MOTOR Signal Check...

Страница 60: ...r s operation environment 5 1 1 ACCESSING TECH MODE To Access TECH Mode Press User Tools 1 9 3 4 in sequence The LCD displays TECH in the standby mode screen While in TECH mode the machine still perfo...

Страница 61: ...ng ON OFF OFF MODEM SPEED 2400 4800 7200 9600 12000 14400 28800 33600 BPS 33600 BPS DIALING MODE TONE PULSE TONE SEND FAX LEVEL 0 to 15 DBM 12 DBM PAUSE TIME 1 to 9 SEC 3 SEC REDIAL INTERVAL 1 to 15 M...

Страница 62: ...efault DIALING MODE Selecting the dialing mode depends on the user s line status TONE Electrical dial type PULSE Mechanical dial type SEND FAX LEVEL You can set the level of the transmission signal No...

Страница 63: ...silence is detected on the line at any time the call will be treated as a fax message and the machine begins receiving Silence detection time is selectable between 12 seconds and unlimited time When 1...

Страница 64: ...until a clean print job appears ADJUST SHADING Use this feature to correct the white reference on the scanner if you experiencing bad copy images When using this feature white paper should be used in...

Страница 65: ...ch time the number changes by one increment the average ADC value of CIS displays ADC This is digital value of CIS output and is average value of CIS center area If CIS is not working this will indica...

Страница 66: ...number The information is printed at the bottom of each printed page Item Description PAGE TONER CNT Prints the number of dots used to print the page TOTAL TONER CNT Prints the total number of the dot...

Страница 67: ...e most recent transmissions will be printed RECEIVED JOURNAL This journal lists specific information concerning reception activities When using this feature the time and dates of up to 40 of the most...

Страница 68: ...munication error occurs while the machine is in TECH mode the protocol list will print automatically Sample of a Protocol Dump List PATTERN PRINT Using this pattern printout you can check if the print...

Страница 69: ...ber 2002 5 10 SHADING PRINT With this print you can check the scanning elements of the CIS Contact Image Sensor NOTE This print is automatically printed after the ADJUST SHADING is performed in TECH m...

Страница 70: ...tart the test 5 Press Stop to exit the Engine test mode Engine Test Mode Options 1 MAIN MOTOR TEST 2 PTL TEST 3 FAN TEST 4 FUSING UNIT TEST ON 145 C OFF 145 C 5 LSU MOTOR TEST 6 LD LASER DIODE TEST 7...

Страница 71: ...a List in Tech mode and Phone book Note All data cannot be re programmed after software has downloaded 3 In Command prompt type as below and hit Enter 2 Make sure that the machine is in standby mode N...

Страница 72: ...ssary to select these two country codes Also it is necessary to select the country code in the Philippines if the machine is using DP dial pulse mode 5 Press Start Enter to set the designated country...

Страница 73: ...w cartridge is installed the CRU STATE will be changed to 3000 The fuse will blow opening the circuit just after the CRU was installed 6 2 TONER END DETECTION There is no toner end sensor available on...

Страница 74: ...DRIVER CIS INTERFACE PART KS32C65100 RTC Back up Part Audio Part FLASH MEMORY 2MB DRAM 8 MB MODEM 33600 bps ENGINE HVPS FAN SOLENOID MOTOR OPC_FUSE OPC GND SUPPLY DEV THV TRANSFORMER 600 600 Tx Rx TR...

Страница 75: ...E1284 L1a also has Parallel I F to upgrade machine firmware General Halftone 64 Level Error Diffusion Power Switch No NA AC 110 to 120 V Input Voltage EU AS AC 220 to 240 V AC 220 to 240 V 50 60 Hz Po...

Страница 76: ...tive 208 mm 208 mm Scan Length Max 356 mm Legal 356 mm Legal Scan Copy Mode 1500 mm 1500 mm Handset No No 1 Touch Dial 20 20 Speed Dial 80 80 Group Dial 20 20 TAD No No TAD I F Yes Yes Tone Pulse Yes...

Страница 77: ...Yes Authorized Reception Yes JUNK FAX BARRIER Auto Reduction Yes Broad casting 20 Priority TX Yes 3 files Delay TX 25 Substitute Reception Yes Function Support from RDC Yes FAX Battery Backup Yes Min...

Страница 78: ...gth 128 356 mm Up to 1500 mm manually assisted copy mode only Width 148 216 mm Weight 12 5 28 lb 32 Ib 1 sheet Paper Handling Original Size Thickness 0 075 0 13 mm 0 15 mm 1 sheet Win 3 x No Win 95 No...

Страница 79: ...D 5 23 5V 24 EGMOT_PHA 25 24VS 26 24VS 27 GND24 28 GND24 SPK 1 SPKOUT 2 AGND 1 24VS 2 FUSER_ON 3 5V 4 EXI T 5 5V 6 GND5 7 5V 8 GND5 9 5V 10 GND 5 11 24V 12 GND 24 13 24V 14 GND24 15 24V 16 GN D24 CN5...

Страница 80: ...LOG Contents 1 MAIN ASSEMBLY 2 2 SHIELD ENGINE UNIT ASSEMBLY 4 3 ENGINE ASSEMBLY 5 4 FRAME LOWER ASSEMBLY 6 5 FUSER ASSEMBLY 8 6 PLATE UPPER UNIT ASSEMBLY 9 7 OPE UNIT 10 8 SCAN UPPER ASSEMBLY 11 9 FR...

Страница 81: ...1 MAIN ASSEMBLY 27 May 2003 2 1 MAIN ASSEMBLY H911C900 WMF 7 12 4 8 11 9 3 2 6 1 10 5 Only China 13 14...

Страница 82: ...H911 9568 PCB NCU China 1 O 6 H911 9507 RX Drive Unit 1 O O O O O 7 H911 9508 Connecter Board Scanner L1b 1 O O 7 H911 9577 Connecter Board Scanner L1a 1 O O O 8 H911 9509 Top Cover 1 O O O O O 9 H911...

Страница 83: ...2 H911 9516 Harness Laser Unit 1 O O O O O 3 H911 9517A Harness Power Pack 1 O O O O O 4 H911 9518 Harness NCU 1 O O O O O 5 H911 9519 PCB Main Board 1a 1 O O 5 H911 9579 PCB Main Board 1a China 1 O 5...

Страница 84: ...1 O O O O O 4 H911 9547 PCB Hook 1 O O O O O 5 H911 9525 Connector Board Main 1 O O O O O 6 H911 9526 Transfer Roller 1 O O O O O 7 H911 9527 Friction Pad Ass y 1 O O O O O 8 H911 9548 Side Friction P...

Страница 85: ...4 FRAME LOWER ASSEMBLY 27 May 2003 6 4 FRAME LOWER ASSEMBLY H911C903 WMF 10 2 3 9 7 8 4 11 1 5 6 Transfer Roller...

Страница 86: ...911 9553 AIO Guide Rail Left 1 O O O O O 4 H911 9529 Paper Feed Roller 1 O O O O O 5 H911 9554 Sensor Actuator Paper End 1 O O O O O 6 H911 9555 Sensor Actuator Paper Feed 1 O O O O O 7 H911 9530 Pres...

Страница 87: ...5 FUSER ASSEMBLY 27 May 2003 8 5 FUSER ASSEMBLY H911 H912 Index No Part No Description Q ty 21 27 29 17 27 1 H911 9534 Fusing Unit 110V 1 O 1 H911 9535 Fusing Unit 220V 1 O O O O H911C904 WMF 1...

Страница 88: ...03 PARTS CATALOG 9 6 PLATE UPPER UNIT ASSEMBLY H911 H912 Index No Part No Description Q ty 21 27 29 17 27 1 H911 9537 Upper Metal Plate 1 O O O O O 2 H911 9538 Paper Pick up Roller 1 O O O O O H911C90...

Страница 89: ...USA 1 O 1 H911 9540 OP Port Unit Upper EU 1 O O 1 H911 9574 OP Port Unit Upper Asia 1 O 1 H911 9569 OP Port Unit Upper China 1 O 2 H911 9541 PCB OP Port 1 O O O O O 3 H911 9575 Quick Dial Sheet 1 O O...

Страница 90: ...y 2003 PARTS CATALOG 11 8 SCAN UPPER ASSEMBLY H911 H912 Index No Part No Description Q ty 21 27 29 17 27 1 H911 9542 Scanner Upper Unit 1 O O O O O 2 H911 9559 ADF Rubber Plate 1 O O O O O H911C906 WM...

Страница 91: ...9 FRONT ASSEMBLY 27 May 2003 12 9 FRONT ASSEMBLY H911C907 WMF 2 4 5 3 1 6 6...

Страница 92: ...anner Unit 1b 1 O O 1 H911 9560 Scanner Unit 1a 1 O O O 2 H911 9561 Contact Image Sensor 1b 1 O O 2 H911 9562 Contact Image Sensor 1a 1 O O O 3 H911 9563 TX Motor 1 O O O O O 4 H911 9544 White Roller...

Страница 93: ...Unit 2 2 H911 9517A Harness Power Pack 2 3 H911 9518 Harness NCU 2 4 H911 9519 PCB Main Board 1a 2 5 H911 9520 PCB Main Board 1b 2 5 H911 9522 Paper Pick up Cam 3 1 H911 9523 Solenoid Paper Pick up 3...

Страница 94: ...ate 8 2 H911 9560 Scanner Unit 1a 9 1 H911 9561 Contact Image Sensor 1b 9 2 H911 9562 Contact Image Sensor 1a 9 2 H911 9563 TX Motor 9 3 H911 9564 PCB NCU Asia 1 5 H911 9565 Handset 1 13 H911 9566 Han...

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