Copystar Ri 2530, Service Manual

Page: 209 / 686

2DF
1-5-56
Problem Causes Check procedures/corrective measures
(34)
No developing bias
is output.
(35)
The original size is
not detected.
(36)
The original size is
not detected cor-
rectly.
(37)
The touch panel
keys do not work.
(38)
The message re-
questing paper to be
loaded is shown
when paper is
present in the upper
drawer.
(39)
The message re-
questing paper to be
loaded is shown
when paper is
present in the lower
drawer.
(40)
The message re-
questing paper to be
loaded is shown
when paper is
present on the by-
pass tray.
(41)
The size of paper in
the upper drawer is
not displayed cor-
rectly.
Defective main PCB.
Defective high-voltage
transformer PCB.
Defective original detec-
tion switch.
Original is not placed cor-
rectly.
Poor contact in the original
size detection sensor con-
nector terminals.
Defective original size de-
tection sensor.
Poor contact in the touch
panel connector terminals.
Defective touch panel or
operation unit PCB.
Poor contact in the upper
paper switch connector
terminals.
Defective upper paper
switch.
Poor contact in the lower
paper switch connector
terminals.
Defective lower paper
switch.
Poor contact in the bypass
paper switch connector
terminals.
Defective bypass paper
switch.
Poor contact in the upper
paper length switch con-
nector terminals.
Defective upper paper
length switch.
Poor contact in the upper
paper width switch con-
nector terminals.
Defective upper paper
width switch.
See page 1-5-43.
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.
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 PCB.
Reinsert the connector. Also check for continuity within the con-
nector cable. If none, remedy or replace the cable.
Check if CN13-B12 on the main PCB goes low when the upper
paper switch is turned on with 5 V DC present at CN13-B13 on
the main PCB. If not, replace the upper paper switch.
Reinsert the connector. Also check for continuity within the con-
nector cable. If none, remedy or replace the cable.
Check if CN13-B18 on the main PCB goes low when the upper
paper switch is turned on with 5 V DC present at CN13-B19 on
the main PCB. If not, replace the lower paper switch.
Reinsert the connector. Also check for continuity within the con-
nector cable. If none, remedy or replace the cable.
Check if CN6-A6 on the main PCB goes low when the bypass
paper switch is turned on with 5 V DC present at CN6-A5 on the
main PCB. If not, replace the bypass paper switch.
Reinsert the connector. Also check for continuity within the con-
nector cable. If none, remedy or replace the cable.
Check if CN13-B2 on the main PCB goes low when the upper
paper length switch is turned on. If not, replace the upper paper
length switch.
Reinsert the connector. Also check for continuity within the con-
nector cable. If none, remedy or replace the cable.
Check if the levels of CN12-3, CN12-4 and CN12-5 on the main
PCB change alternately when the width guide in the upper
drawer is moved. If not, replace the upper paper width switch.