Service Manual
Page 34
For details about the sensors, refer to Section 2.3. scanner unit which consists of a scanner top cover, CCD unit, CCD drive mechanism, CCD HP sensor, and scanner base. 2.1 Scanner Mechanism This mechanism consists of a document feed roller ASSY, document ejection roller ASSY, ADF motor, and document front and rear sensors, and - III - 3 document tray ASSY which consists of a document chute and document tray, - automatic document feeder (ADF) unit which consists of the following: -
For details about the sensors, refer to Section 2.3. scanner unit which consists of a scanner top cover, CCD unit, CCD drive mechanism, CCD HP sensor, and scanner base. 2.1 Scanner Mechanism This mechanism consists of a document feed roller ASSY, document ejection roller ASSY, ADF motor, and document front and rear sensors, and - III - 3 document tray ASSY which consists of a document chute and document tray, - automatic document feeder (ADF) unit which consists of the following: -
Service Manual
Page 35
... to the right so as to form the image on the CCD. Clockwise and counterclockwise rotations of the CCD motor move above the CCD unit, and then it is supported and guided by page. III - 4 The CCD...of the scanner top cover, close the scanner unit, and start the scanning operation, the ADF motor rotates so that the document feed roller ASSY feeds those documents into the lens which reduces the..., starting from the top sheet to the bottom, page by the CCD rail, is , the CCD motor rotates and its rotation will be transmitted via the gear train to advance above the CCD unit being kept...
... to the right so as to form the image on the CCD. Clockwise and counterclockwise rotations of the CCD motor move above the CCD unit, and then it is supported and guided by page. III - 4 The CCD...of the scanner top cover, close the scanner unit, and start the scanning operation, the ADF motor rotates so that the document feed roller ASSY feeds those documents into the lens which reduces the..., starting from the top sheet to the bottom, page by the CCD rail, is , the CCD motor rotates and its rotation will be transmitted via the gear train to advance above the CCD unit being kept...
Service Manual
Page 37
According to the controller. At the 1st stage, the controller drives the main motor without energizing the solenoid so that the paper feed roller no longer rotates and the paper pick-up roller starts rotating to pick up paper ...
According to the controller. At the 1st stage, the controller drives the main motor without energizing the solenoid so that the paper feed roller no longer rotates and the paper pick-up roller starts rotating to pick up paper ...
Service Manual
Page 45
... Chute and Paper Pinch Rollers IV-33 1.15 Main Cover...IV-34 1.16 Switch Cover (for models not equipped with a power switch IV-35 1.17 Laser Unit...IV-36 1.18 Heat-fixing Unit and FU Lamp IV-37 1.19 Fan...IV-41 1.20 Drive Gear ASSY and Main... Motor ASSY IV-43 1.21 NCU Shield and NCU PCB IV-45 1.22 Bottom Plate, Main PCB, and Bottom Insulation Film IV-47 1.23 Low-voltage ...
... Chute and Paper Pinch Rollers IV-33 1.15 Main Cover...IV-34 1.16 Switch Cover (for models not equipped with a power switch IV-35 1.17 Laser Unit...IV-36 1.18 Heat-fixing Unit and FU Lamp IV-37 1.19 Fan...IV-41 1.20 Drive Gear ASSY and Main... Motor ASSY IV-43 1.21 NCU Shield and NCU PCB IV-45 1.22 Bottom Plate, Main PCB, and Bottom Insulation Film IV-47 1.23 Low-voltage ...
Service Manual
Page 55
1.6 ADF Unit (1) Remove screw "a" from the harness support. (2) Remove screw "b" to release the grounding wires. (3) Disconnect the following from the relay PCB: • CCD flat cable (P4) • ADF motor harness (4-pin, P3) • Document sensor harness (4-pin, P8) "a": Taptite, cup B M3x8 "b": Taptite, cup S M3x6 IV - 9
1.6 ADF Unit (1) Remove screw "a" from the harness support. (2) Remove screw "b" to release the grounding wires. (3) Disconnect the following from the relay PCB: • CCD flat cable (P4) • ADF motor harness (4-pin, P3) • Document sensor harness (4-pin, P8) "a": Taptite, cup B M3x8 "b": Taptite, cup S M3x6 IV - 9
Service Manual
Page 56
The ADF supports also come off. (7) Take off the harness support by removing screw "d." "c" and "d": Taptite, cup B M3x8 IV - 10 Turn the ADF unit back into place. (5) Open the ADF cover (arrow ƒ) and remove two screws "c." (6) Lift up the ADF unit while pulling out the ADF motor harness, document sensor harness, and grounding wire. (4) Turn the ADF unit in the direction of arrow •, remove the plastic retaining ring, and release the arm (arrow ,) from the boss provided on the scanner top cover.
The ADF supports also come off. (7) Take off the harness support by removing screw "d." "c" and "d": Taptite, cup B M3x8 IV - 10 Turn the ADF unit back into place. (5) Open the ADF cover (arrow ƒ) and remove two screws "c." (6) Lift up the ADF unit while pulling out the ADF motor harness, document sensor harness, and grounding wire. (4) Turn the ADF unit in the direction of arrow •, remove the plastic retaining ring, and release the arm (arrow ,) from the boss provided on the scanner top cover.
Service Manual
Page 58
... outwards. If you do not need to remove the ADF parts, skip to be put back in. 8) Remove the screw and take off the ADF motor. IV - 12 NOTE: Once removed, the ADF film will become unusable and a new part will have to step 10). 7) Peel off the spring plate A, separation...
... outwards. If you do not need to remove the ADF parts, skip to be put back in. 8) Remove the screw and take off the ADF motor. IV - 12 NOTE: Once removed, the ADF film will become unusable and a new part will have to step 10). 7) Peel off the spring plate A, separation...
Service Manual
Page 60
... the rear end, pull the bushing outwards and lift up the document ejection roller ASSY. 16) Remove the three screws and take it off the motor bracket. 17) At the front end of the lower ADF chute, remove the gear 19/36 by pulling its pawl outwards. 21) Remove the gear...
... the rear end, pull the bushing outwards and lift up the document ejection roller ASSY. 16) Remove the three screws and take it off the motor bracket. 17) At the front end of the lower ADF chute, remove the gear 19/36 by pulling its pawl outwards. 21) Remove the gear...
Service Manual
Page 61
... guides so that it will not interfere with the document rear sensor actuator. (See the illustration given on page IV-13.) • Reinstall the ADF motor with its connector side facing up. (See the illustration given on page IV-12.) • Reinstall the ADF side covers so that the tabs of... covers. (See the illustration given on page IV-11.) • When reinstalling the ADF side cover R, be sure to route the document sensor harness, ADF motor harness, and grounding wire between the boss and the ADF side cover R. (See the illustration given on page IV-11.) • When reinstalling the ADF...
... guides so that it will not interfere with the document rear sensor actuator. (See the illustration given on page IV-13.) • Reinstall the ADF motor with its connector side facing up. (See the illustration given on page IV-12.) • Reinstall the ADF side covers so that the tabs of... covers. (See the illustration given on page IV-11.) • When reinstalling the ADF side cover R, be sure to route the document sensor harness, ADF motor harness, and grounding wire between the boss and the ADF side cover R. (See the illustration given on page IV-11.) • When reinstalling the ADF...
Service Manual
Page 62
Panel harness - CCD motor harness - Scanner HP sensor harness IV - 16 1.7 Scanner Unit and Control Panel ASSY (1) Disconnect the following from the relay PCB: -
Panel harness - CCD motor harness - Scanner HP sensor harness IV - 16 1.7 Scanner Unit and Control Panel ASSY (1) Disconnect the following from the relay PCB: -
Service Manual
Page 64
... pawls of the scanner mount, respectively, and then slide the scanner unit to the front. (Refer to page IV-17.) • When connecting the CCD motor harness, panel harness, and scanner HP sensor harness to the relay PCB, route them as shown below.
... pawls of the scanner mount, respectively, and then slide the scanner unit to the front. (Refer to page IV-17.) • When connecting the CCD motor harness, panel harness, and scanner HP sensor harness to the relay PCB, route them as shown below.
Service Manual
Page 65
• When connecting the CCD motor harness, panel harness, and scanner HP sensor harness to the relay PCB, route them as shown below. [ Disassembling the Scanner Unit ] The disassembling job of the scanner unit should be done in a clean room to prevent dust or dirt from getting into the scanner unit. 1) Remove the four screws from the scanner top cover. 2) Separate the scanner top cover from the scanner base. IV - 19
• When connecting the CCD motor harness, panel harness, and scanner HP sensor harness to the relay PCB, route them as shown below. [ Disassembling the Scanner Unit ] The disassembling job of the scanner unit should be done in a clean room to prevent dust or dirt from getting into the scanner unit. 1) Remove the four screws from the scanner top cover. 2) Separate the scanner top cover from the scanner base. IV - 19
Service Manual
Page 67
IV - 21 9) Pull up the CCD motor harness and disconnect it from the CCD motor. 10) Remove three screws "c" from the motor bracket. 11) Lift up the motor bracket. 12) Remove two screws "d" from the sensor. 14) Remove the CCD HP sensor. The scanner grounding wire also comes off. 13) Disconnect the CCD HP sensor harness from the CCD motor.
IV - 21 9) Pull up the CCD motor harness and disconnect it from the CCD motor. 10) Remove three screws "c" from the motor bracket. 11) Lift up the motor bracket. 12) Remove two screws "d" from the sensor. 14) Remove the CCD HP sensor. The scanner grounding wire also comes off. 13) Disconnect the CCD HP sensor harness from the CCD motor.
Service Manual
Page 69
...sequence. If this happens, turn the CCD lock to secure the scanner grounding wire also as shown on page IV-21. • Route the CCD motor harness and scanner grounding wire as illustrated below , then route it along the positioning rib as shown on the previous page. • Set the ...CCD motor back into place with screws "d," be sure to the release position. n Reassembling Notes • Route the panel harness and CCD HP sensor harness through ...
...sequence. If this happens, turn the CCD lock to secure the scanner grounding wire also as shown on page IV-21. • Route the CCD motor harness and scanner grounding wire as illustrated below , then route it along the positioning rib as shown on the previous page. • Set the ...CCD motor back into place with screws "d," be sure to the release position. n Reassembling Notes • Route the panel harness and CCD HP sensor harness through ...
Service Manual
Page 71
1.8 Relay PCB (1) Disconnect the following harnesses from the relay PCB: - Main-relay (panel) harness - Speaker harness - n Reassembling Notes • When setting the relay PCB back into place, be upside down. Main-relay (CCD) harness - The printed letters should not be careful with the installation direction. Main-relay (motors) harness (2) Remove the two screws. (3) Take out the relay PCB. IV - 25
1.8 Relay PCB (1) Disconnect the following harnesses from the relay PCB: - Main-relay (panel) harness - Speaker harness - n Reassembling Notes • When setting the relay PCB back into place, be upside down. Main-relay (CCD) harness - The printed letters should not be careful with the installation direction. Main-relay (motors) harness (2) Remove the two screws. (3) Take out the relay PCB. IV - 25
Service Manual
Page 75
Also pull up the main-relay (CCD) harness and raise it up and through square cutout "y" provided in the scanner mount. - at the right-hand side, raise the main-relay (panel) harness coming through the main cover up and through round cutout "z." IV - 29 at the left-hand side, pull up the main-relay (motors) harness and chassis grounding wire and raise them up and through cutout "x" provided in the scanner mount. n Reassembling Notes • When setting the scanner mount back into place: -
Also pull up the main-relay (CCD) harness and raise it up and through square cutout "y" provided in the scanner mount. - at the right-hand side, raise the main-relay (panel) harness coming through the main cover up and through round cutout "z." IV - 29 at the left-hand side, pull up the main-relay (motors) harness and chassis grounding wire and raise them up and through cutout "x" provided in the scanner mount. n Reassembling Notes • When setting the scanner mount back into place: -
Service Manual
Page 80
.... "a" and "b": Taptite, bind S M3x8 n Reassembling Notes • When reinstalling the main cover, route the main-relay (panel) harness, main-relay (CCD) harness, and main-relay (motors) harness through the respective cutouts provided in the main cover is dislocated from the power inlet. (3) Unhook the two latches with the tip of the...
.... "a" and "b": Taptite, bind S M3x8 n Reassembling Notes • When reinstalling the main cover, route the main-relay (panel) harness, main-relay (CCD) harness, and main-relay (motors) harness through the respective cutouts provided in the main cover is dislocated from the power inlet. (3) Unhook the two latches with the tip of the...
Service Manual
Page 82
... cover. (2) Remove two screws "b." (3) Disconnect the polygon motor harness and laser flat cable from the laser unit. (4) Lift up the laser unit. IV - 36 Do not disturb it. "a" and "b": Taptite, cup S M3x16 n Reassembling Notes • Before putting the laser unit back into place, check for the adjustment in the...any toner particles, paper dust or dirt, and clean them out. • After routing the polygon motor harness and laser flat cable, tape them onto the laser unit as shown above. 1.17 Laser Unit (1) Remove screw "a" and take care not to touch the inside of the unit, glass, or...
... cover. (2) Remove two screws "b." (3) Disconnect the polygon motor harness and laser flat cable from the laser unit. (4) Lift up the laser unit. IV - 36 Do not disturb it. "a" and "b": Taptite, cup S M3x16 n Reassembling Notes • Before putting the laser unit back into place, check for the adjustment in the...any toner particles, paper dust or dirt, and clean them out. • After routing the polygon motor harness and laser flat cable, tape them onto the laser unit as shown above. 1.17 Laser Unit (1) Remove screw "a" and take care not to touch the inside of the unit, glass, or...
Service Manual
Page 83
1.18 Heat-fixing Unit and FU Lamp (1) Remove the screw from the main chassis in the directions of arrows • and ,. *Provided on models supporting video capture IV - 37 The chassis grounding wire also comes off. (2) Peel off tape and take off the main-relay (motors) harness, main-relay (CCD) harness, and VC harness* from the harness duct. (3) Unhook the harness duct from the harness duct.
1.18 Heat-fixing Unit and FU Lamp (1) Remove the screw from the main chassis in the directions of arrows • and ,. *Provided on models supporting video capture IV - 37 The chassis grounding wire also comes off. (2) Peel off tape and take off the main-relay (motors) harness, main-relay (CCD) harness, and VC harness* from the harness duct. (3) Unhook the harness duct from the harness duct.
Service Manual
Page 89
1.20 Drive Gear ASSY and Main Motor ASSY (1) Remove five screws from the drive gear ASSY. (2) Tilt the drive gear ASSY towards you while taking care not to drop the develop joint and spring, and then disconnect the main motor harness. (3) Remove the front cover link and idle gear 56 from the main chassis. *Provided on models supporting video capture IV - 43
1.20 Drive Gear ASSY and Main Motor ASSY (1) Remove five screws from the drive gear ASSY. (2) Tilt the drive gear ASSY towards you while taking care not to drop the develop joint and spring, and then disconnect the main motor harness. (3) Remove the front cover link and idle gear 56 from the main chassis. *Provided on models supporting video capture IV - 43