Main Charging Is Notperformed - Kyocera KM-2550 Service Manual

Problem
(20) Broken main charger wire.
Main charging is not-
Leaking main charger hous-
performed.
ing.
Poor contact in the high
voltage PCB connector ter-
minals.
Defective engine PCB.
Defective high- voltage
PCB.
(21) Poor contact in the high
Transfer charging is voltage PCB connector ter-
not performed. minals.
Defective engine PCB.
Defective high-voltage
PCB.
(22) Poor contact in the high
No developing bias is voltage PCB connector ter-
output. minals.
Defective engine PCB.
Defective high-voltage
PCB.
(23) Defective original detection
The original size is switch.
not detected.
(24) Original is not placed cor-
The original size is rectly.
not detected cor-
Poor contact in the original
rectly.
size detection sensor con-
nector terminals.
Defective original size
detection sensor.
(25) Poor contact in the paper
The message switch connector terminals.
requesting paper to
Defective paper switch.
be loaded is shown
when paper is
present in the drawer
1.
(26) Poor contact in the drawer
The message paper switch connector ter-
requesting paper to minals.
be loaded is shown
Defective drawer paper
when paper is
switch.
present in the drawer
2.
Causes
See page 1-5-27.
See page 1-5-27.
See page 1-5-27.
If the level of YC18-5 on the engine PCB does not change when
the original detection switch is turned on and off, replace the origi-
nal detection switch.
Check the original and correct if necessary.
Reinsert the connector. Also check for continuity within the con-
nector cable. If none, remedy or replace the cable.
Check if sensor operates correctly. If not, replace it.
Reinsert the connector. Also check for continuity within the con-
nector cable. If none, remedy or replace the cable.
If the level of YC8-2 on the engine PCB does not change when
the paper switch is turned on and off, replace the paper switch.
Reinsert the connector. Also check for continuity within the con-
nector cable. If none, remedy or replace the cable.
If the level of YC5-2 on the drawer main PCB does not change
when the drawer paper switch is turned on and off, replace the
drawer paper switch.
Check procedures/corrective measures
2FT
1-5-37