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April, 2007 SPECIAL PROCEDURES
4-19
General Displayed
Code
Item Major Cause Action
23 ID Sensor
Output Error
Vsg_reg (SP3121) less than 0.5V.
• ID sensor harness loose,
disconnected, damaged
• ID sensor damaged
Note: Vsg_reg refers to the
reading of the drum surface done
with the direct reflection sensors
in both the color and black ID
sensors.
• Remove the ITB unit.
• Check the ID sensor harness connections and make sure that they
are tight.
• Check the harnesses for breaks.
• If the harnesses are undamaged and tightening the connections
does not solve the problem, replace the ID sensor plate.
31 AC Charge
Adjust Error 1
Vpp could not be adjusted after
20 attempts.
• Bias path defective
• Charge gap abnormal (too
large)
• Charge roller dirty
• Drum coated with film
• Make sure that the bias path and drum are grounded correctly.
• Check the drum and both ends of the charger roller for any foreign
matter.
• Check the gap between the charge roller and the drum to confirm
that it is not too large.
• If the grounds and gap is normal, clean the charger roller or replace
it.
AC Charge
32 AC Charge
Adjust Error 2
Vpp greater than 2.80 kV.
• Bias path defective
• Charge gap abnormal
• Charge roller dirty, defective
• Make sure that the bias path and drum are grounded correctly.
• Check the drum and both ends of the charger roller for any foreign
matter.
• Check the gap between the charge roller and the drum to confirm
that it is not too large.
• If the grounds and gap is normal, clean the charger roller or replace
it.