2BC/D
1-5-49
Problem
Causes
Check procedures/corrective measures
(50)
Transfer charging is
not performed
(C5110).
(51)
Separation charging
is not performed
(C5110).
(52)
No developing bias
is output.
(53)
The original size is
not detected.
(54)
The original size is
not detected
correctly.
(55)
The touch panel
keys do not work.
Broken transfer charger
wire.
Poor contact in the high
voltage transformer PCB
connector terminals.
Defective engine PCB.
Defective high voltage
transformer PCB.
Broken separation charger
wire.
Poor contact in the high
voltage transformer PCB
connector terminals.
Poor contact in the devel-
oping bias wire.
Poor contact in the high
voltage transformer PCB
connector terminals.
Defective high voltage
transformer PCB.
Defective engine PCB.
Defective original detec-
tion switch.
Original is not placed cor-
rectly.
Poor contact in the original
size detection sensors
connector terminals.
Defective original size de-
tection sensor or the scan-
ner drive PCB.
Poor contact in the touch
panel connector terminals.
Defective touch panel or
operation unit PCB.
See page 1-5-33.
Replace the separation charger wire (see page 1-6-48).
Reinsert the connector. Also check for continuity within the con-
nector cable. If none, remedy or replace the cable.
Check the developing bias wire. If there is any problem, replace
it.
Reinsert the connector. Also check for continuity within the con-
nector cable. If none, remedy or replace the cable.
Check if the developing bias is output when CN1-9 on the high
voltage transformer PCB goes low while maintenance item U030
is run. If not, replace the high voltage transformer PCB.
Check if CN12-9 on the engine PCB goes low during copying. If
not, replace the engine PCB.
If the level of CN5-2 on the scanner drive PCB does not change
when the original detection switch is turned on and off, replace
the original 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 or, if neces-
sary, the scanner drive PCB.
Reinsert the connector. Also check for continuity within the con-
nector cable. If none, remedy or replace the cable.
If any keys do not work after the touch panel has been initial-
ized, replace the touch panel or operation unit main PCB.
Summary of Contents for Ri 4530 Copystar
Page 1: ...SERVICE MANUAL Published in Feb 02 2BC70941 Revision 1 Ri 4530 5530 ...
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