KIP 7170K, Service Manual

Page: 516 / 865

K134sm7e1 7-14
7. 1. 2. 6 Abnormal output of Process 1 Developer Bias (E-0323/E-803)
Cause Checking
order
Checking
Res
ult Treatment
Wires 1 Are wires among Developer Unit, HV
Power Supply PCB and PW13420 PCB
connected properly?
No Connect them properly.
Developer Unit 2 Is the toner spill out from the Developer
Unit?
(Or is there any similar problem?)
Yes Clean each Corona Wire,
Grid Plate and housing.
Is the high voltage of Regulation Roller
leaking?
(The resistance between the central part
of Regulation Roller and the Ground is
5 mega ohm or smaller if leaking.)
Yes Replace the Regulation
Roller.
Cleaning Roller 3 Is Copper Plate pressed to the shaft of
Cleaning Roller for secure contact?
No Deform the Copper Plate a
little by hand so that it surely
presses the shaft. Remove
old conductive grease and
apply new one.
Is there enough conductive grease? No Remove old conductive
grease and apply new one.
HV Power Supply 4 Can you fix the problem if you replace
the HV Power Supply?
Yes OK
7. 1. 2. 7 Process 1 LED Printhead Error
Process 1 LED Printhead 1 Error (E-0330h/E-816)
Process 1 LED Printhead 2 Error (E-0331h/E-817)
Process 1 LED Printhead 3 Error (E-0332h/E-818)
Cause Checking
order
Checking
Res
ult Treatment
Wires 1 Are the wires between LED Head and
PW13420 PCB connected properly?
No Connect them properly.
LED Head 2 Can you fix the problem if you replace
LED Head?
Yes OK
PW13420 PCB 3 Can you fix the problem if you replace
PW13420 PCB?
Yes OK
Multi-meter
GND