Kyocera KM-2560 Service Manual page 173

Problem
(11) 1. Original is not placed cor-
The original size is
not detected cor-
2. Poor contact in the origi-
rectly.
3. Defective original detec-
4. Defective original size
(12) 1. Poor contact in the touch
The touch panel keys
do not work.
2. Defective touch panel or
(13) 1. Poor contact in the con-
The message
requesting paper to
be loaded is shown
when paper is
2. Defective upper/lower
present on the cas-
sette 1/2 or MP tray.
(14) 1. Poor contact in the con-
The size of paper on
the cassette 1/2 or
MP tray is not dis-
played correctly.
2. Defective upper/lower
3. Defective upper/lower
Causes
rectly.
nal detection switch or
original size detection
sensor connector termi-
nals.
tion switch.
detection sensor.
panel connector termi-
nals.
main operation PWB.
nector terminals of
upper/lower paper switch
or MP paper switch.
paper switch or MP
paper switch.
nector terminals of
upper/lower paper size
length switch, upper/
lower paper size width
switch, MP paper size
length switch or MP
paper size width switch.
paper size length switch
or MP paper size length
switch.
paper size width switch
or MP paper size width
switch.
Check procedures/corrective measures
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.
If the level of YC17-5 on the engine PWB does not go low when
the original detection switch is turned on and off, replace the origi-
nal detection switch.
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 running the maintenance item U201
to initialize the touch panel, replace the touch panel or main oper-
ation unit PWB.
Reinsert the connector. Also check for continuity within the con-
nector cable. If none, remedy or replace the cable.
If the level of following terminal on PWB does not go low when the
switch is turned on and off, replace the switch.
Upper paper switch: YC23-B12 on the engine PWB
Lower paper switch: YC23-A5 on the engine PWB
MP paper switch: YC7-6 on the engine PWB
Reinsert the connector. Also check for continuity within the con-
nector cable. If none, remedy or replace the cable.
If the level of following terminal on PWB does not go low when the
switch is turned on and off, replace the switch.
Upper paper size length switch: YC23-B2 on the engine PWB
Lower paper size length switch: YC23-A12 on the engine PWB
MP paper size length switch: YC7-13 on the engine PWB
If the level of following terminal on PWB does not change when
the width guide in the cassette 1/2 or insert guide on the MP tray
is moved, replace the switch.
Upper paper size width switch: YC22-5, 7, 11 on the engine PWB
Lower paper size width switch: YC22-6, 8, 12 on the engine PWB
MP paper size width switch: YC7-1, 2, 3 on the engine PWB
2H0/2HZ
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