Copystar Ri 2530, Service Manual

Page: 190 / 686

2DF
1-5-37
Code Contents
Remarks
Causes Check procedures/corrective measures
*: Optional
C7410
C7800
C7810
C8010
C8030
Drum unit connector insertion prob-
lem
• Absence of the drum unit is detected
continuously for 1500 ms while there
is no error on the copier.
Broken external temperature ther-
mistor wire
• The input voltage is above 4.5 V.
Short-circuited external temperature
thermistor
• The input voltage is below 1.0 V.
Finisher* paper conveying motor
problem
• The paper conveying motor lockup
signal is detected for 0.5 s or longer.
Finisher* paper conveying belt prob-
lem
• An on-to-off or off-to-on state change
of the paper conveying belt home po-
sition sensor is not detected within 2 s
of the paper conveying belt clutch
turning on.
Drum unit connec-
tor inserted incor-
rectly.
Defective drum
unit connector.
Poor contact in
the humidity sen-
sor PCB connec-
tor terminals.
Defective external
temperature ther-
mistor.
Poor contact in
the humidity sen-
sor PCB connec-
tor terminals.
Defective external
temperature ther-
mistor.
Poor contact in
the paper convey-
ing motor connec-
tor terminals.
The paper con-
veying motor mal-
functions.
Defective finisher
main PCB.
The paper con-
veying belt is out
of phase.
The paper con-
veying belt clutch
malfunctions.
The paper con-
veying belt home
position sensor
malfunctions.
The paper con-
veying belt home
position sensor
connector makes
poor contact.
The internal tray
is incorrectly in-
serted.
Reinsert the drum unit connector if neces-
sary.
Replace the drum unit.
Reinsert the connector. Also check for con-
tinuity within the connector cable. If none,
remedy or replace the cable.
Replace the humidity sensor PCB.
Reinsert the connector. Also check for con-
tinuity within the connector cable. If none,
remedy or replace the cable.
Replace the humidity sensor PCB.
Reinsert the connector. Also check for con-
tinuity within the connector cable. If none,
remedy or replace the cable.
Replace the paper conveying motor and
check for correct operation.
Replace the finisher main PCB and check
for correct operation.
Adjust the paper conveying belt so that it is
in phase and check for correct operation.
Replace the paper conveying belt clutch
and check for correct operation.
Replace the paper conveying belt home
position sensor and check for correct op-
eration.
Reinsert the connector. Also check for con-
tinuity within the connector cable. If none,
remedy or replace the cable.
Check whether the internal tray unit or front
cover catches are damaged.