CD401, CD402, CD403, CD404, CD405, CD406, CD407, CD411, CD412, CD413 (bizhub 950i/850i)
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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.
- Replace BASEB.