Error Code: C-4716 Follow

Code

C-4716

Classification

Main body: Index sensor abnormality (C)

Cause

When the machine executes APC, the Index sensor output does not change. Polygon mirror does not rotate. The index sensor failed to detect the laser because the position of the index sensor is improper or because the index sensor is defective.

Measures to take when an alert occurs

The main body and the option stop immediately.

Estimated abnormal parts

• Image processing board (IPB)
• Writing unit/C

Correction

Deactivate and activate the sub power switch (SW2) of the main body.

Note

• The message "Please turn on power again" is displayed on the touch panel.

Solution

1. Perform the IO Check (99-70) and check if there is a problem with IPB.
   • When the results are abnormal, perform solution 2 and solution 4.
   • When the results are normal, perform solution 2 and solution 3.
2. Check the connector connection between IPB and the writing unit, and the wiring. Then repair it when there is any abnormality.
3. Replace the writing unit.
4. Replace IPB.

Faulty part isolation DIPSW

Control during the detachment