Kyocera KM-3035 Service Manual page 226

2FD/2FF/2FG
Problem
(40)
The size of paper in
the upper drawer is
not displayed
correctly.
(41)
The size of paper in
the lower drawer is
not displayed cor-
rectly.
(42)
The printing width of
the paper on the
bypass tray is not
detected correctly.
1-5-52
Causes
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.
Poor contact in the lower
paper length switch con-
nector terminals.
Defective lower paper
length switch.
Poor contact in the lower
paper width switch con-
nector terminals.
Defective lower paper
width switch.
Poor contact in the bypass
paper length switch con-
nector terminals.
Defective bypass paper
length switch.
Poor contact in the bypass
paper width switch con-
nector terminals.
Defective bypass paper
width switch.
Check procedures/corrective measures
Reinsert the connector. Also check for continuity within the con-
nector cable. If none, remedy or replace the cable.
Check if YC13-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 YC12-3, YC12-4 and YC12-5 on the main
PCB change alternately when the width guide in the upper
drawer is moved. If not, replace the upper paper width switch.
Reinsert the connector. Also check for continuity within the con-
nector cable. If none, remedy or replace the cable.
Check if YC13-A19 on the main PCB goes low when the lower
paper length switch is turned on. If not, replace the lower 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 YC12-9, YC12-10 and YC12-11 on the
main PCB change alternately when the width guide in the lower
drawer is moved. If not, replace the lower paper width switch.
Reinsert the connector. Also check for continuity within the con-
nector cable. If none, remedy or replace the cable.
Check if YC6-B11 on the main PCB goes low when the bypass
paper length switch is turned on. If not, replace the bypass pa-
per 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 YC6-A1, YC6-A2 and YC6-A3 on the main
PCB change alternately when the insert guide on the bypass
table is moved. If not, replace the bypass paper width switch.