Kyocera TASKalfa 420i Service Manual page 188

2KR/2KS
Code
C1120 PF left lift position problem (optional
3000-sheet paper feeder)
Level switch 1 does not turn on within 30
s of PF lift motor 1 turning on.
C1130 PF right lift position problem (optional
3000-sheet paper feeder)
Level switch 2 does not turn on within 30
s of PF lift motor 2 turning on.
C1800 Paper feeder communication error
(optional paper feeder)
A communication error from paper
feeder is detected 10 times in succes-
sion.
C1900 Paper feeder EEPROM error (optional
paper feeder)
When writing the data, the write data and
the read data is not continuously in
agreement three times.
1-4-30
Contents
Causes Check procedures/corrective measures
Poor contact in the Check the connection of connector YC15 on
connector termi- the engine PWB and the connector on the
nals. PF main PWB, and the continuity across the
connector terminals. Repair or replace if
necessary.
Defective level Check if YC5-4 on the PF main PWB goes
switch 1. low when level switch 1 is turned off. If not,
replace level switch 1.
Defective PF lift Check for continuity across the coil. If none,
motor 1. replace PF lift motor 1.
The PF left lift does Check the gears and belts, and remedy if
not rise properly. necessary.
Poor contact in the Check the connection of connector YC15 on
connector termi- the engine PWB and the connector on the
nals. PF main PWB, and the continuity across the
connector terminals. Repair or replace if
necessary.
Defective level Check if YC5-7 on the PF main PWB goes
switch 2. low when level switch 2 is turned off. If not,
replace level switch 2.
Defective PF lift Check for continuity across the coil. If none,
motor 2. replace PF lift motor 2.
The PF right lift Check the gears and belts, and remedy if
does not rise prop- necessary.
erly.
Poor contact in the Check the connection of connector YC15 on
connector termi- the engine PWB and the connector on the
nals. PF main PWB, and the continuity across the
connector terminals. Repair or replace if
necessary.
Defective PWB. Replace the PF main PWB or engine PWB
and check for correct operation.
Poor contact in the Check the connection of connector YC15 on
connector termi- the engine PWB and the connector on the
nals. PF main PWB, and the continuity across the
connector terminals. Repair or replace if
necessary.
Defective engine Replace the engine PWB and check for cor-
PWB. rect operation.
Defective paper Replace the paper feeder with another unit
feeder. and check the operation. If the operation is
normal, replace or repair optional paper
feeder.
Remarks