The Original Size Is Not Detected; The Original Size Is Not Detected Correctly; In The Upper Drawer - Kyocera Mita KM-1530 Service Manual

2AV/X
Problem
(24)
The original size is
not detected
correctly.
(25)
The message
requesting paper to
be loaded is shown
when paper is
present in the upper
drawer.
(26)
The message
requesting paper to
be loaded is shown
when paper is
1-5
present in the lower
1
drawer* .
(27)
The message
requesting paper to
be loaded is shown
when paper is
present on the
3
bypass tray.*
(28)
The size of paper in
the upper drawer is
not displayed
correctly.
*1: Optional for 15 cpm copier.
*4: Optional for both 20 cpm and 15 cpm copiers.
1-5-28
Causes
Original is not placed
correctly.
Poor contact in the original
size detection sensor
connector terminals.
Defective original size
detection sensor.
Poor contact in the upper
paper switch connector
terminals.
Defective upper paper
switch.
Poor contact in the lower
1
paper switch* connector
terminals.
Defective lower paper
1
switch* .
Poor contact in the bypass
3
paper switch* connector
terminals.
Defective bypass paper
3
switch* .
Poor contact in upper
paper size switch 1
connector terminals.
Defective upper paper size
switch 1.
Poor contact in upper
paper size switch 2
connector terminals.
Defective upper paper size
switch 2.
Poor contact in upper
paper size switch 3
connector terminals.
Defective upper paper size
switch 3.
*2: For 20 cpm copier only. *3: Optional for 220-240 V specifications of 15 cpm copier.
Check procedures/corrective measures
Check the original and correct if necessary.
Reinsert the connector. Also check for continuity within the
connector cable. If none, remedy or replace the cable.
Check if the sensor operates correctly. If not, replace it.
Reinsert the connector. Also check for continuity within the
connector cable. If none, remedy or replace the cable.
Check if CN3-10 on the main PCB goes low when the upper
paper switch is turned on with 5 V DC present at CN3-11 on the
main PCB. If not, replace the upper paper switch.
Reinsert the connector. Also check for continuity within the
connector cable. If none, remedy or replace the cable.
Reinsert the connector. Also check for continuity within the
connector cable. If none, remedy or replace the cable.
Check if CN8-15 on the main PCB goes low when the lower
paper switch* is turned on with 5 V DC present at CN8-21 on the
main PCB. If not, replace the lower paper switch*
Reinsert the connector. Also check for continuity within the
connector cable. If none, remedy or replace the cable.
Check if CN25-2 on the main PCB goes low when the bypass
3
paper switch* is turned on with 5 V DC present at CN25-3 on
the main PCB. If not, replace the bypass paper switch*
Reinsert the connector. Also check for continuity within the
connector cable. If none, remedy or replace the cable.
Check if CN9-2 on the main PCB goes low when upper paper
size switch 1 is turned on. If not, replace upper paper size switch
1.
Reinsert the connector. Also check for continuity within the
connector cable. If none, remedy or replace the cable.
Check if CN9-4 on the main PCB goes low when upper paper
size switch 2 is turned on. If not, replace upper paper size switch
2.
Reinsert the connector. Also check for continuity within the
connector cable. If none, remedy or replace the cable.
Check if CN9-6 on the main PCB goes low when upper paper
size switch 3 is turned on. If not, replace upper paper size switch
3.
1
.
3
.