Canon imageRUNNER C1335 Series Service Manual page 416

Error Detail
Item
code Code
E202 0001 Title Scanner Unit HP error
Description The HP of the Scanner Unit could not be detected when starting scanning
operation.
Remedy [Related parts]
• Harnesses from the Reader Assembly HP Sensor to the Main Controller
PCB
1. Reader Assembly HP Sensor (PS01/J913) to Relay Connector (3P)
(Unit of replacement: CABLE, HOME POSITION SENSOR)
2. Relay Connector (3P) to Main Controller PCB (UN81/J8103) (Unit
of replacement: CABLE, READER MAIN)
• Harness between the Reader Motor (M01/J901) and the Main Controller
PCB (UN81/J8103) (Unit of replacement: CABLE, READER MAIN)
• Reader Motor (M01) (Unit of replacement: MOTOR, STEPPING)
• CIS HP Sensor (PS01) (Unit of replacement: PHOTO INTERRUPTER)
• BOOK Motor (Unit of replacement: MOTOR, STEPPING)
• Pulley Gear 85T/20T (Unit of replacement: GEAR, 85T/20T)
• Carriage Timing Belt (Unit of replacement: BELT, TIMING, COGGED)
• Idler Pulley (Unit of replacement: PULLEY, IDLER)
• Idler Pulley Holder (Unit of replacement: READER ASSEMBLY)
• FB Shaft (Unit of replacement: READER ASSEMBLY)
• Electrolytic capacitor on the Main Controller PCB (C8002) (Unit of
replacement: MAIN CONTROLLER PCB ASSEMBLY)
• 24V power supply for driving the Reader on the Main Controller PCB
side (J7003/pin 1) (Unit of replacement: MAIN CONTROLLER PCB
ASSEMBLY)
• Harness between the Main Controller PCB (UN81/J7003) and the Low-
voltage Power Supply PCB (UN01/J313) (Unit of replacement: CABLE,
POWER SUPPLY)
• Low-voltage Power Supply PCB (UN01) (Unit of replacement: POWER
SUPPLY ASSEMBLY)
[Points to note at work] When checking the harness/cable or connector,
perform the following work.
1. Disconnect and then connect the connector to check that there is no
bent pin and cable disconnection.
2. Visually check that the harness is not caught or open circuit.
3. If there is any error, replace the corresponding harness/cable.
7
Error•Jam•Alarm > Error Code > Error Code Details
Description
7 Error•Jam•Alarm > Error Code > Error Code Details
Error Detail
Item
code Code
Remedy [Remedy] Perform the following in the order while checking whether the
error is cleared.
1. Check the harness between the Reader Assembly HP Sensor and the
Main Controller PCB.
2. Check the harness between the Reader Motor and the Main Controller
PCB.
3. At initial operation of the Reader startup after the main power is turned
ON, check if the Reader Motor operates (whether the Scanner Unit moves
or operation sound is heard). If it operates, move the Carriage Timing Belt
by hand and check if load is appropriate.
a. If it is appropriate, replace the CIS HP Sensor.
b. If it is not appropriate (overloaded), replace the following parts.
- Stepping Motor
- Z85_T20 Pulley Gear
- Carriage Timing Belt
- Idler Pulley
- Idler Pulley Holder
4. Check for soiling or scar on the surface of the FB Shaft on which the
Scanner Unit is installed. If there is soiling or scar, replace the FB Shaft.
5. Measure the electrolytic capacitor on the Main Controller PCB using a
tester. If the measurement value is 24V, replace the Main Controller PCB.
6. Measure the 24V power supply for driving the Reader on the Main
Controller PCB side using a tester. If the measurement value is 24 V,
replace the Main Controller PCB.
7. Check the harness between the Main Controller PCB and the Low-
voltage Power Supply PCB.
8. Perform step 6 again. If the measurement value is 24 V, replace the
Low-voltage Power Supply PCB.
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Description
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