Description
Fuse 11 on the Motor Drive PWB has blown
故障排查:
Procedure
Turn OFF the power and disconnect the power plug. Remove the Rear Lower Cover. Measure the resistance of the Motor Drive PWB (F11).
Is the resistance 5 Ohm or higher?
Y N
Check the connection between the LVPS_CP1U J509-2 and the Motor Drive PWB J400-1 for open circuit, short circuit, and poor contact.
Disconnect the following connectors from the Motor Drive PWB and measure the resistance between each connector terminal and the GND.
J411-3 (1ST BTR CONT/RET Sensor)
J416-4 (Temp & Humidity Sensor)
J416-12 (ADC Sensor)
J417-3 (Toner Bottle Position Sensor)
J417-6 (Toner Bottle Full Sensor)
J418-18 (ATC Sensor Y)
J420-1 (Fusing Unit Exit Sensor)
J420-4 (P/Roll Latch Sensor)
J420-9 (Belt Speed Sensor)
J424-3 (ATC Sensor K)
J424-6 (ATC Sensor M)
J424-9 (ATC Sensor C)
J425-5 (T1 Level Sensor)
J425-8 (T1 No Paper Sensor)
J425-11 (T1 Lever Position Sensor)
J425-16 (T1 Pre Feed Sensor)
J428-4 (T2 No Paper Sensor)
J428-9 (T2 Pre Feed Sensor)
J428-10 (T2 Lever Position Sensor)
J428-1 (T2 Level Sensor)
J431-B6 (Regi Sensor)
J431-B9 (POB Jam Sensor)
J431-B12 (MSI Feed Out Sensor)
J433-3 (Exit2 Sensor)
J433-4 (Exit2 OCT Home Position Sensor)
J433-12 (Face Up Exit Sensor)
J433-17 (Exit1 OCT Full Stack Sensor)
J435-1 (Exit1 OCT Home Position Sensor)
J435-6 (Exit2 Tray Sensor)
J435-10 (NOHAD Temp & Humidity Sensor)
J435-13 (Exit1 Tray Sensor)
J436-A4 (MSI No Paper Sensor)
J436-A7 (MSI Nudger Position Sensor)
J443-6 (Rear ReC Sensor)
J443-12 (Front ReC Sensor)
J451-1 (Feed Out Sensor 3)
J451-4 (T3 Level Sensor)
J451-7 (T3 No Paper Sensor)
J451-12 (T3 Pre Feed Sensor)
J451-13 (T3 Lever Position Sensor)
J452-9 (2TM Take Away Motor)
J454-5 (TTM Feed Out Sensor 4)
J454-6 (T4 Level Sensor)
J454-9 (T4 No Paper Sensor)
J454-14 (T4 Pre Feed Sensor)
J454-15 (T4 Lever Position Sensor)
Is the resistance 5 Ohm or higher for all?
Y N
Check the following:
The connections that are in earth fault (at 5 ohm or lower) for short circuits.
The target components for internal short circuits.
Replace the Motor Drive PWB. (PL 18.2)
