Kyocera 300ci Service Manual page 250

2JZ/2JX/2JV/2H7-1
Code
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.
C1950 Transfer belt unit EEPROM error
No response is issued from the device in
reading/writing for 5 ms or more and this
problem is repeated five times succes-
sively.
Mismatch of reading data from two loca-
tions occurs eight times successively.
Mismatch between writing data and
reading data occurs eight times succes-
sively.
C2101 Developing motor K error
The rated speed achievement signal
does not turn to L within 2 s since devel-
oping motor K is activated.
The rated speed achievement signal is
at the H level for 1 s continuously after
developing motor K is stabilized.
1-4-32
Contents
Causes Check procedures/corrective measures
Poor contact in the Check the connection of connector YC27 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 YC27 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.
Poor contact in the Check the connection of connector YC28 on
connector termi- the engine PWB and the connector of the
nals. transfer belt unit, and the continuity across
the connector terminals. Repair or replace if
necessary.
Defective transfer Replace the transfer belt unit (see page 1-5-
belt speed PWB 37).
(inner transfer belt
unit).
Poor contact in the Check the connection of connector YC16 on
connector termi- the engine PWB and the connector of the
nals. developing motor K, and the continuity
across the connector terminals. Repair or
replace if necessary.
Defective drive Check if the rollers and gears rotate
transmission sys- smoothly. If not, grease the bushings and
tem. gears. Check for broken gears and replace if
any.
Defective develop- Run maintenance item U030 and check if
ing motor K. the developing motor K operates when
YC16-B4 (remote signal) on the engine
PWB goes low. If not, replace the develop-
ing motor K.
Defective engine Run maintenance item U030 and check if
PWB. YC16-B4 (remote signal) on the engine
PWB goes low. If not, replace the engine
PWB.
Remarks