Konica-Minolta bizhub 164

Error Code:

Code: C4001
Description: Faulty HSYNC
- The SOS sensor does not detect a rising edge of SOS within a given period of time after the polygon motor has started turning and a laser output has been started.
- The SOS sensor detects no rising edges of SOS while VIA (image area control) is ON.
Remedy: 1 Turn OFF and ON the power switch. 2 Check the connector between PH unit- PRCB CN1, CN2 for proper connection and correct as necessary. 3 Change PH unit. 4 Change PRCB.

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