CPC中文印刷社区 - 施乐黑白DC4110内部故障42-332 10-315

042-332 Fuser Intake X'fer Intake Fan Fail
BSD on:CH9.11, CH10.6
Description
A Fuser Intake Fan or X'fer Intake Fan failure

Initial Action
Check the Fan Blade of the Fuser Exhaust Fan for foreign objects and deformation causing a poor rotation.

Check that Connector J256 on the Fuser Intake Fan and Connector J257 on the Transfer Intake Fan are properly connected.

Procedure
Turn on the power. Open the Front Door. Cheat the Front Door Interlock Switch.

The Fuser Intake Fan has rotated.
Yes No

+12VDC is measured between J256-5 (+) and -4(-) on the Fuser Intake Fan.
Yes No

+12VDC is measured between J442-5 (+) and -6(-) on the IOT PWB.
Yes No

CR5 (GRN) on the IOT PWB is lighting.
Yes No

Seeing BSD CH1.6, check the +12VDC circuit to J430-6 on the IOT PWB.

Replace the IOT PWB (PL 2.1).

Check the circuits between J442-5 on the IOT PWB and J256-5 on the Fuser Intake Fan, and between J442-6 on the IOT PWB and J256-4 on the Fuser Intake Fan.

+12VDC is measured between J256-2 (+) on the Fuser Intake Fan and GND (-).
Yes No

+12VDC is measured between J442-8 (+) on the IOT PWB and GND (-).
Yes No

Disconnect and reconnect the cable between J432 on the IOT PWB and J402 on the MCU PWB. If this does not resolve the problem, replace the Flexible Print Cable (PL 2.1), IOT PWB (PL 2.1) and MCU PWB (PL 2.1) in order.

Check for an open wire or poor contact between J256-2 on the Fuser Intake Fan and J442-8 on the IOT PWB.

Replace the Fuser Intake Fan (PL 15.6).

Enter the Diag. Enter DC330 [042-001](Fuser Intake Fan High/Low). Select Start.

The Fuser Intake Fan comes to rotate at high speed.
Yes No

With DC330 [042-001] ON, approx. +2.73VDC is measured between J256-3 (+) on the Fuser Intake Fan and GND (-).
Yes No

Replace the Fuser Intake Fan (PL 15.6).

Approx. +2.73VDC is measured between J442-7 (+) on the IOT PWB and GND (-).
Yes No

Check for an open wire or poor contact between J442-7 on the IOT PWB and J256-3 on the Fuser Intake Fan.

Turn off the power. Disconnect and reconnect the cable between J432 on the IOT PWB and J402 on the MCU PWB. If this does not resolve the problem, replace the Flexible Print Cable (PL 2.1), IOT PWB (PL 2.1) and MCU PWB (PL 2.1) in order.

Exit the Diag. Remove the Front Cover from the Marking Drawer.

The Transfer Intake Fan is rotating.
Yes No

+24VDC is measured between J257-4 (+) and -1(-) on the Transfer Intake Fan.
Yes No

+24VDC is measured between J442-1 (+) and -4(-) on the IOT PWB.
Yes No

+24VDC is measured between J430-2 (+) on the IOT PWB and GND (-).
Yes No

Seeing BSD CH1.16, check the +24VDC circuit to J430-2 on the IOT PWB.

Replace the IOT PWB (PL 2.1).

Check the circuits between J442-1 on the IOT PWB and J257-4 on the Transfer Intake Fan, and between J442-4 on the IOT PWB and J257-1 on the Transfer Intake Fan.

Replace the Transfer Intake Fan (PL 13.13).

At service call, the Fuser Intake Fan and the Transfer Intake Fan appear to be normally rotating. Perform the following again:

Check the Fan Blade each of the Fuser Intake Fan and the Transfer Intake Fan for foreign objects and deformation causing a poor rotation.

Check that Connector J256 on the Fuser Intake Fan and Connector J257 on the Transfer Intake Fan are properly connected.

If the problem reoccurs, replace the Fuser Intake Fan (PL 15.6) and Transfer Intake Fan (PL 13.13).

010-315 Fuser Latch Contact Fail
BSD on:CH9.14, CH10.2
Description
Nip Sensor does not turn ON a spec time after the Latch On signal is sent.

Initial Action
Check that the half-moon shaped plate that blocks the Fuser Nip Sensor is not broken.

Check that the couplings are engaged.

Check that the Drawer Connectors (P/J612) connecting the Fuser Unit and the main unit are free from bent pins, foreign objects and burnout.

Procedure
Turn off the power. Remove the Fuser Unit. (REP 15.1.1) Manually rotate the Fuser Nip Cam couplings.

The Fuser normally nips (to such a degree that the P-Roll slightly contacts the Heat Roll).
Yes No

Remove causes preventing the Fuser from nipping, such as a mechanical load like binding gears, which results from the latch operation; a foreign object in the nip drive area; and binding Cam Shaft bearings.

Turn on the power. Enter the Diag. Enter DC330 [010-202] (Fuser Nip Sensor). Select Start. Block the sensor with the half-moon shaped plate (no nipping) and push in the Drawer. Observe the display (H is displayed). Next removing the sensor along with the bracket, make the sensor receive light and hold the state, then push in the Drawer. (L is displayed.)

The display changes between H and L.
Yes No

Using 2.2.3.2 Permeable Sensor Failure FIP, troubleshoot the Fuser Nip Sensor.

Cheat the Front Door.

Enter DC330 [042-008] (Fuser Auger Motor). Select Start.

The Fuser Auger Motor is heard to operate.
Yes No

Open the PWB Chassis. (REP 2.1.1)

The Fuser Auger Motor tries to rotate.
Yes No

+24VDC is measured between J209-1 (+) and -2(-) on the Auger Motor.
Yes No

+24VDC is measured between J435-A14 (+) and -A13 (-) on the IOT PWB.
Yes No

+24VDC is measured between J433-1 (+) on the IOT PWB and GND (-).
Yes No

Seeing BSD CH1.16, check the +24VDC circuit to J433-1 on the IOT PWB.

Replace the IOT PWB (PL 2.1).

Check the circuits each between J435-A14 on the IOT PWB and J209-1 on the Auger Motor, and between J435-A13 on the IOT PWB and J209-2 on the Auger Motor for an open wire or poor contact.

+5VDC is measured between J209-4 (+) and -5(-) on the Auger Motor.
Yes No

+5VDC is measured between J435-A11 (+) and -A10 (-) on the IOT PWB.
Yes No

Replace the IOT PWB (PL 2.1).

Check the circuits each between J435-A11 on the IOT PWB and J209-4 on the Auger Motor, and between J435-A10 on the IOT PWB and J209-5 on the Auger Motor for an open wire or poor contact.

With DC330 [042-008] (Fuser Auger Motor) ON, +5VDC is measured between J209-3 (+) on the Auger Motor and GND (-).
Yes No

Replace the Auger Motor (PL 10.4).

+5VDC is measured between J435-A12 (+) on the IOT PWB and GND (-).
Yes No

Check the circuit between J435-A12 on the IOT PWB and J209-3 on the Auger Motor for an open wire or poor contact.

Replace the following parts in order:

Flexible Print Cable (PL 2.1)

MCU PWB (PL 2.1)

IOT PWB (PL 2.1)

Check the following:

Auger for a poor rotation due to toner blocking.

Inverter In Roll for an improper operation

Drive gears for binding

Enter the Diag. Enter DC330 [010-006] (Fuser Nip Clutch). Select Start.

The Fuser Nip Clutch is heard to operate.
Yes No

Using 2.2.3.4 Solenoid/Clutch Not Energized Failure FIP, troubleshoot the Fuser Nip Clutch.

Recheck if the latch operation has no problem; the couplings are properly engaged; the Clutch does not slip off. If no problem is found, replace the MCU PWB (PL 2.1) and the IOT PWB (PL 2.1) in order.