2NC/2NF/2NG/2NN/3P7/3P8/3P9
1-4-22
0800 Image processing error
JAM010X is detected twice.
Main/Engine PWB
Replace the main/engine PWB (see page 2-
2-11).
0840 Faults of RTC
(“Time for maintenance T” is
displayed)
[Check at power up]
The RTC setting has reverted
to a previous state. The
machine has not been pow-
ered for 5 years (compared to
the settings stored periodically
in the EEPROM).
The RTC setting is older than
00:01 on January 1, 2000.
[Checked periodically (in 5-
minute interval) after powered
up]
The RTC setting has reverted
to a state older than the last
time it was checked.
10 minutes have been passed
since the previous check.
Battery ( main
PWB)
1. Make sure that the back-up batteries on
the main/engine PWB are not short-
circuited.
2. Reset Maintenance T by executing
U906 (see page 1-3-114).
3. If the same C call is displayed when
power is switched on and off, replace the
back up battery.
4. If communication error (due to a noise,
etc.) is present with the RTC on the
main/engine PWB, check the PWB is
properly grounded.
Main/Engine PWB
Replace the main/engine PWB (see page 2-
2-11).
1810 Paper feeder unit 2 commu-
nication error
A communication error from
paper feeder is detected 10
times in succession.
Paper feeder
Check the wiring connection status with the
main unit and, if necessary, try connecting it
again.
PF main PWB 1. Confirm that the wiring connector is
firmly connected and, if necessary,
connect the connector all the way in.
PF main PWB (YC1) and main/engine
PWB (YC18)
2. If the wiring is disconnected, shorted or
grounded, replace the wiring.
3. Replace the PF main PWB.
Main/Engine PWB 1. Check the main/engine software and
upgrade to the latest, if necessary.
2. Replace the main/engine PWB (see
page 2-2-11).
Code Contents Related parts
Check procedures/
corrective measures