The Cis Does Not Turn Off - Kyocera KM-6030 Service Manual

Problem
(6) 1. Poor contact in the CIS
The CIS does not
turn on.
2. Defective DP inverter
3. Defective DP main PWB. Run maintenance item U061 and check if the CIS turns on when
(7) 1. Defective DP inverter
The CIS does not
turn off.
2. Defective DP main PWB. If YC12-2 on the DP main PWB is always low, replace the DP
(8) 1. Poor contact in DP safety
A message indication
cover open is dis-
played when the DP
2. Poor contact in DP safety
is closed correctly.
3. Defective DP safety
4. Defective DP safety
(9) 1. Poor contact in the origi-
The size of original is
not displayed cor-
rectly.
2. Poor contact in the origi-
3. Defective original length
4. Defective original width
(10) 1. A piece of paper torn
An original jams
when the main power
switch is turned on.
2. Defective switch.
Causes
connector terminals.
PWB.
PWB.
switch 1 connector termi-
nals.
switch 2 connector termi-
nals.
switch 1.
switch 2.
nal length size switch
connector terminals.
nal width size switch con-
nector terminals.
size switch.
size switch.
from original is caught
around original feed
switch, original registra-
tion switch, DP timing
switch 1/2.
Check procedures/corrective measures
Reinsert the connector. Also check for continuity within the con-
nector cable. If none, remedy or replace the cable.
Run maintenance item U061 and check if the CIS turns on when
the connector on the DP inverter PWB goes low. If not, replace the
DP inverter PWB.
YC12-2 on the DP main PWB goes low. If not, replace the DP
main PWB.
Check if the CIS turns off when the connector on the DP inverter
PWB goes high. If not, replace the DP inverter PWB.
main PWB.
Reinsert the connector. Also check for continuity within the con-
nector cable. If none, remedy or replace the cable.
Reinsert the connector. Also check for continuity within the con-
nector cable. If none, remedy or replace the cable.
Check for continuity across the contacts of the switch. If none
when the switch is on, replace DP safety switch 1.
Check for continuity across the contacts of the switch. If none
when the switch is on, replace DP safety switch 2.
Reinsert the connector. Also check for continuity within the con-
nector cable. If none, remedy or replace the cable.
Reinsert the connector. Also check for continuity within the con-
nector cable. If none, remedy or replace the cable.
Run maintenance item U244 and turn the original length size
switch on and off manually. Replace the original length size switch
if indication of the corresponding switch on the touch panel is not
displayed in reverse.
Check if the level of YC8-5 on the DP main PWB change alter-
nately when the original width guides are moved. If not, replace
the original width size switch.
Check visually and remove it, if any.
Run maintenance item U244 and turn switch on and off manually.
Replace the switch if indication of the corresponding switch on the
touch panel is not displayed in reverse.
Original feed switch, original registration switch, DP timing switch
1/2
2FB/2FC-4
1-5-71