Filter
Top Products
IV-17
I-19 Downward fogging of solid black
Possible cause Step Check Result Remedy
Drum unit 1 Is the problem solved after
replacing the drum unit?
Yes Replace the drum unit.
High-voltage
power supply
PCB
2 Is the problem solved after
replacing the high-voltage
power supply PCB?
Yes Replace the high-voltage
power supply PCB.
I-20 Horizontal lines
Possible cause Step Check Result Remedy
HV.GND
contacts
(Fig.4-
5,4-7)
SR electrode 1 Are the SR electrodes
between the printer body and
the drum unit dirty?
Yes Clean both electrodes.
➈
SR connection
failure
2 Are the SR electrodes
between the printer body and
the drum unit connected
correctly?
No Check the SR
connection.
Feed roller 3 Are the feed roller shaft and
the ground contact
connected correctly?
No Check the connection
between the shaft and
the ground contact.
➉