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