Canon imageRUNNER 2420 Trouble Error Codes List page 12

Code
The light intensity of the CIS is faulty.
E225-
During DF stream reading, the sheet-to-
0002
sheet light intensity is faulty.
E227- The reader unit power supply is faulty.
0001 At time of power-on, the 24-V port is off.
E227- The reader unit power supply is faulty.
0002 At the start of a job, the 24-V port is off.
E227- The reader unit power supply is faulty.
At the end of a job, the 24-V port is off.
0003
The reader unit power supply is faulty.
E227-
When a load is being driven, the 24-V
0004
port is off.
The backup memory is faulty.
[Cause] A check error has occurred on
E248-
the backup SRAM board. [Location]
0000
bottom ROM [Timing of Detection] once
when the boot ROM is started up
E248- The backup memory is faulty.
An error has occurred at power-on.
0001
The backup memory is faulty.
E248-
An error has occurred during a write
0002
operation.
The backup memory is faulty.
E248-
An error has occurred during a read
0003
operation following a write operation.
The zero-cross signal is faulty.
E261- When the relay is on, the zero-cross
0000 signal is not detected for 500 msec or
more.
E315- There is an error in image data.
0007 There is an error in JBIG encoding.
E315- There is an error in image data.
000d There is an error in JBIG decoding.
E400- DF communication error
0001 Check sum error
E400- DF communication error
Description
12
Remedy
Disconnect and then connect the flexible
cable. Replace the following as necessary:
flexible cable, CIS, reader controller PCB.
Disconnect and then connect the power
supply harness connector. Replace the power
supply.
Disconnect and then connect the power
supply harness connector. Replace the power
supply.
Disconnect and then connect the power
supply harness connector. Replace the power
supply.
Disconnect and then connect the power
supply harness. Replace the power supply.
1. Check the presence/absence of a backup
SRAM PCB. 2. Disconnect and then connect
the backup SRAM PCB. 3. Replace the
backup SRAM PCB with a new one.
Replace the reader controller PCB.
Replace the reader controller PCB.
Replace the reader controller PCB.
Replace the AC driver PCB. Replace the DC
controller PCB.
Turn off and then back on the power.
Turn off and then back on the power.
Disconnect and then connect the connector.
Replace the reader controller PCB. Replace
the ADF controller PCB.
Disconnect and then connect the connector.