SERVICE MANUAL
5-2.16. SVC57 Toner High-density Alarm
Explanation
Abnormal toner density sensor output voltage (0.98V or lower, it can be monitored at the test point
TNDNS W5 on the mechanism controller PCB) was detected four times consecutively by the
mechanism controller. (The toner density sensor was checked every 500 ms by the mechanism
controller.)
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