: Jan. 9 2004
1
AR-CF2 TROUBLESHOOTING 8 - 2
Problem
Tray alarm is displayed on the system display.
Case1 Cause Sub-tray pulling detection sensor fault
Check and
remedy
Measure a voltage on TP14 on the
controller PCB and check that 5 V is
observed when the sub-tray is in place,
and that 1 V or less is observed when the
sub-tray is pulled out. Replace the sensor
if the measured voltage exceeds these
ranges.
Case2 Cause Sub-tray pulling detection sensor fault
Check and
remedy
Measure a voltage of TP15 on the
controller PCB and check that 5 V is
observed when the tray is in place, and
that 1 V or less is observed when the tray
is pulled. Replace the sensor if the
measured voltage exceeds these ranges.
Case3 Cause Controller PCB fault
Check and
remedy
If the problem is not solved by a change in
the sensor level after the above cases 1
and 2 are confirmed, replace the
controller PCB.
Problem
Cover open is displayed on the system display.
Case1 Cause JAM cover open/close switch fault
Check and
remedy
Check continuity between the switch
contacts., Replace the switch if no
conduction is measured.
Case2 Cause Reverse unit open/close sensor fault
Check and
remedy
Measure a voltage of TP9 on the
controller PCB and check that 1 V or less
is observed when the reverse unit is
open, and that 5 V is observed when the
reverse unit is closed. Replace the sensor
if the measured voltage exceeds these
ranges.
Case3 Cause Rack cover open/close sensor fault
Check and
remedy
Measure the voltage of TP10 on the
control PWB and check that it is 1V or
less when the base cover is opened and
5V when closed.
If the voltage is outside the above
specifications, replace the sensor with a
new one.
Case4 Cause Controller PCB fault
Check and
remedy
If the problem is not solved by a change
in the sensor level after the above cases
1 to 3 are confirmed, replace the
controller PCB.
Problem
Inserter unset is displayed on the system display.
Case1 Cause Set sensor fault
Check and
remedy
Measure a voltage of TP16 on the
controller PCB and check that 5 V is
observed when the inserter is set, and
that 1 V or less is observed when the
inserter is not set. Replace the sensor if
the measured voltage exceeds these
ranges.
Case2 Cause Controller PCB fault
Check and
remedy
If the problem is not solved by a change
in the sensor level after the above case 1
is confirmed, replace the controller PCB.
1
Problem The registration clutch does not perform.
Case1 Cause Loose contact of the clutch connector
terminal
Check and
remedy
Check continuity of the connector
contacts. (CN4)
Case2 Cause Disconnection of the clutch coils
Check and
remedy
Inspect the coils for continuity. Replace
the coils if no continuity is measured.
Case3 Cause Controller PCB fault
Check and
remedy
If the clutch does not perform in the clutch
single operation mode, replace the
controller PCB.
