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C7131 (bizhub C750i)
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Contents
| Trouble type | C7131: Toner supply motor/C failure |
| Rank | C |
| Trouble detection condition | After starting the motor, an error is detected for the malfunction detection signal. |
| Trouble isolation | – |
| Relevant electrical parts | -Toner supply motor/C (M7) -Expansion control board (EXCB) |
Procedure
- Check the connector between M7-EXCB CN11EX for proper connection and correct as necessary.
- Check the connector of M7 for proper drive coupling and correct as necessary.
- M7 conduction check.
- Control signal: EXCB CN11EX-17 to 20
- Location of electrical component: 16-P
- Replace M7. (Part# A7PUM10700)
- Replace EXCB. (Part# AA7NH00500)