Konica Minolta bizhub C650 Service Manual page 735

16. Malfunction code
16.5.151 CD401: NACK command incorrect
16.5.152 CD402: ACK command incorrect
16.5.153 CD403: Checksum error
16.5.154 CD404: Receiving packet incorrect
16.5.155 CD405: Receiving packet analysis error
16.5.156 CD406: ACK receiving timeout
16.5.157 CD407: Retransmission timeout
MFP board (PRCB)
Step
Check whether there is an strong electro-
1
magnetic noise source near the main body.
Check the connectors on MFPB for proper
2
connection and correct as necessary.
3 Change MFPB.
16.5.158 CE001: Abnormal message queue
16.5.159 CE003: Task error
16.5.160 CE004: Event error
16.5.161 CE005: Memory access error
16.5.162 CE006: Header access error
16.5.163 CE007: DIMM initialize error
Printer control board (PRCB)
Step
Check the connectors on PRCB for proper
1
connection and correct as necessary.
2 Change PRCB.
680
Relevant parts
Action
Relevant parts
Action
Field Service Ver. 8.0 Jun. 2008
WIRING DIAGRAM
Location (Electri-
Control signal
cal component)
—
—
—
WIRING DIAGRAM
Location (Electri-
Control signal
cal component)
—
—
—
—
—
—
—