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CD401, CD402, CD403, CD404, CD405, CD406, CD407, CD411, CD412, CD413 (bizhub C750i)
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Contents
Trouble type | CD401: NACK command incorrect CD402: ACK command incorrect CD403: Checksum error CD404: Receiving packet incorrect CD405: Receiving packet analysis error CD406: ACK receiving timeout CD407: Retransmission timeout CD411: Touch panel board error CD412: Touch panel type mismatch CD413: Electrostatic touch panel operation mode error |
Rank | C |
Trouble detection condition | When abnormality is found in the communication of controller. |
Trouble isolation | – |
Relevant electrical parts | -Control panel -CPU board (CPUB) -Base board (BASEB) |
Procedure
- Check whether there is a strong electromagnetic noise source near the main body.
- Check the connector between the control panel-BASEB CN7 for proper connection and correct as necessary.
- Check CPUB for proper installation and correct as necessary.
- Replace CPUB. (Part# ACKNH02P03)
- Replace BASEB. (Part# ACKNH02101)