Codes C8070 - C8140 - Kyocera TASKalfa 250ci Service Manual

2JZ/2JX/2JV/2H7-1
Code
C8070 Inner tray communication error
(optional 3000-sheet document fin-
isher)
Communication with the inner tray is not
possible although the connection is
detected.
C8140 Main tray problem (optional 3000-
sheet document finisher)
The main tray is not detected by the
main tray upper limit detection sensor or
the main tray paper upper surface detec-
tion sensor within 20 s since the tray has
started ascending.
The main tray upper limit detection sen-
sor or the main tray paper upper surface
detection sensor is not detected to be
turned off in 20 s after the main tray has
descended.
The main tray low limit detection sensor
is not detected to be turned on in 20 s
after the main tray has descended.
During main tray ascent, the main tray
upper limit detection sensor or the main
tray paper upper surface detection sen-
sor stays on for more than 2 s.
Tray elevation motor problem
(optional document finisher)
The tray low limit sensor or paper sur-
face sensor 1/2 cannot be detected to be
on within 10 s since the tray elevation
motor is activated.
1-4-52
Contents
Causes Check procedures/corrective measures
Poor contact in the Check the connection of connector YC6 and
connector termi- YC24 on the finisher main PWB and the
nals. connector YC1 and YC4 on the inner tray
PWB, and the continuity across the connec-
tor terminals. Repair or replace if necessary.
Defective PWB. Replace the inner tray PWB or finisher main
PWB and check for correct operation.
Poor contact in the Check the connection of connector YC11 on
connector termi- the finisher main PWB and the connector on
nals. the main tray motor, and the continuity
across the connector terminals. Repair or
replace if necessary.
Defective main tray Replace the main tray motor.
motor.
Defective main tray Replace the sensor.
upper limit detec-
tion sensor/main
tray paper upper
surface detection
sensor/main tray
lower limit detec-
tion sensor.
Defective finisher Replace the finisher main PWB and check
main PWB. for correct operation.
The tray elevation Reinsert the connector. Also check for conti-
motor connector nuity within the connector cable. If none,
makes poor con- remedy or replace the cable.
tact.
The tray elevation Replace the tray elevation motor.
motor malfunc-
tions.
The tray lower limit Reinsert the connector. Also check for conti-
sensor, paper sur- nuity within the connector cable. If none,
face sensor 1/2 remedy or replace the cable.
connector makes
poor contact.
Defective tray Replace the sensor.
lower limit sensor,
paper surface sen-
sor 1/2.
Defective finisher Replace the finisher main PWB and check
main PWB. for correct operation.
Remarks