magicolor 330 - Base Engine Service Manual 3-21
Primary FIPS: Error Messages

3.18 - Error Message: OPC Comm Error

There is a CRU Memory problem.
Logic control on the MCU PWB could not read from or write to the CRUM.
Step Actions and Questions Yes No
SUSPECT COMPONENTS
The following components are associated with this specific prob-
lem. One or more of these components may have failed partially or
completely. If you cannot isolate the problem using this FIP,
replace each component listed below, one at a time, until the prob-
lem disappears.
• Wiring and connectors linking the components
1OPC DRUM RESEAT
1. Slide the OPC Drum a few in ches out of the printer.
2. Reinstall and lock the OPC Drum.
Does the error message still appear?
Go to step 2 Problem
solved
2Replace the OPC Drum (RRP 9.48)
Does the error message still appear?
Problem
solved
Go to step 3
3Replace the MCU PWB (RRP 9.123)
Does the error message still appear?
Go to suspect
components
Problem
Solved