Canon imageRUNNER ADVANCE C350 series Service Manual page 669

Error Detail
Location Item
code Code
E196 0402 05 Title EEPROM communication error
Detection Although write polling to the PCRG_C EEPROM from the DC
description Controller PCB (CPU) was performed for 3 times, no response
was received and timeout occurred.
Remedy [Related parts]
- Drum Unit (C) (Unit of replacement: DEVE_UNIT_C)
- Front Cover/Right Cover
- Interlock Switch 1 and 2 (Unit of replacement: COVER,
INNER, FRONT, RIGHT)
- Harness between the Interlock Switch 1 and 2 (SW02 and
SW03) and the DC Controller PCB (UN04/J24/1-pin and 2-pin)
(Unit of replacement: COVER, INNER, FRONT, RIGHT)
- Drum Unit Memory PCB (C) (UN14) (Unit of replacement:
DEVE_UNIT_C)
- Drum Unit Relay PCB (C) (UN10) (Unit of replacement:
PROCESS CONTROL PCB ASS'Y)
- Harness between the DC Controller PCB (UN04/J160) and the
Drum Unit Relay PCB (C) (UN10/J6003) (Unit of replacement:
PROCESS CONTROL PCB ASS'Y)
- DC Controller PCB (UN04) (Unit of replacement: DC
CONTROLLER PCB ASSEMBLY)
- Harness between the Low-voltage Power Supply PCB (UN01/
J315 and J322) and the DC Controller PCB (UN04/J20 and
J22) (Unit of replacement: CABLE, PANEL 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
Location Item
code Code
Remedy [Remedy] Perform the following in the order while checking
whether the error is cleared.
1. Remove and then install the Drum Unit (C), and check
whether the error is cleared.
[Reference] EEPROMs on the Drum Units of all colors are
connected each other with signal cables. Therefore, even if the
error is not cleared with step 1, it may be cleared by removing
and then installing the Drum Units of all colors.
2. Check that the Front Cover/Right Cover is closed.
3. Visually check that the Interlock Switch 1 and 2 are turned
ON/OFF by opening/closing the Front Cover/Right Cover.
4. Turn OFF and then ON the main power, and check whether
the error is cleared.
5. Check that the harness between the Interlock Switch 1 and
2 and the DC Controller PCB is not short-circuited (the harness
does not come in contact with the plate while the cable sheath
is peeled).
6. Check if the Drum Unit Memory PCB (C) and the Drum Unit
Relay PCB (C) are damaged or deformed, and replace the
Drum Unit (C) if necessary.
7. Check if the Drum Unit Memory PCB (C) and the Drum Unit
Relay PCB (C) are soiled. If it is soiled, clean it with a blower.
8. Disconnect the connector (J24) of the DC Controller while
the Front Cover and the Right Cover are closed, and measure
the resistance value between the connectors J24/1-pin and the
J24/2-pin on the J24 harness side using a tester.
a. If the measurement value is less than 1 ohm (conduction
state),
1. Replace the DC Controller PCB.
2. Replace the Low-voltage Power Supply PCB.
b. If the measurement value is 1 ohm or higher (non
conduction state), replace the harness between the Interlock
Switch 1 and 2 and the DC Controller PCB.
9. Check the harness between the Low-voltage Power Supply
PCB and the DC Controller PCB.
10. Replace the DC Controller PCB.
11. Replace the Low-voltage Power Supply PCB.
[Reference] Before replacing the DC Controller PCB, back up
the service mode data (approx. 2 min) and restore the backup
data after the replacement so the data may be able to be
protected.
- Backup: COPIER (LEVEL2)> FUNCTION> SYSTEM>
DSRAMBUP
- Restoration: COPIER (LEVEL2)> FUNCTION> SYSTEM>
DSRAMRES
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Description
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