2-52
Confidential
 Error code A500
When scanning the fax, white or black correction data for the first side CIS was not within the 
correct range. (First time)
Error code A600
When scanning the fax, white or black correction data for the first side CIS was not within the 
correct range. (Second time)
 Error code A700
Color parameter in the ROM does not match the first or second side CIS.
 Error code AC00
When scanning the fax, white or black correction data for the second side CIS was not within 
the correct range. (First time)
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Step Cause Remedy
1
Incorrect correction data for first 
side CIS
Execute "Set CIS scan area (function code: 
55)".
2
First side CIS unit failure Replace the first side CIS unit.
3
Main PCB failure Replace the main PCB ASSY.
Print Unable A7
Turn the power off and then back on again.
<User Check>
• Install the latest firmware.
Step Cause Remedy
1
Second side CIS unit failure Replace the second side CIS unit.
2
First side CIS unit failure Replace the first side CIS unit.
3
Main PCB failure Replace the main PCB ASSY.
-
Step Cause Remedy
1
Incorrect correction data for 
second side CIS unit
Execute "Set CIS scan area (function code: 
55)".
2
Second side CIS unit failure  Replace the second side CIS unit.
3
Main PCB failure Replace the main PCB ASSY.