Utax CA-3100, Service Manual

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7-31
Troubleshooting
＞
Paper misfeed detection
[CONFIDENTIAL]
PF conveying sensor
stay jam
(J1413, J1414, J1415,
J1614, J1615, J1815) 1 Check to see if the actuator
is operative without
hinderance.
If it won't operate without hinderance, re-assemble or replace the
actuator's return spring.
2 Check the operation of the
sensor.
If the sensor is inoperative, replace.
3 Check if the PF paper feed
clutch rotates following the
other component.
If stained, replace the clutch.Re-assmeble the clutch so that it is
not continuously energized. (Change of wirings, etc.)
4 Check if the conveying
guide is twisted to be
mounted.(If the mounting
parts of the guide is floated,
the actuator won't protrude
sufficiently.)
If the bracket is twisted to be mounted, remove the screw fixing
the conveying guide and properly mount the bracket in the right
position and fix again.
5 Check no wrinkles are
observed at the sluck of
paper during paper feeding.
Adjust the cursors to the size of the paper.
PF conveying sensor non
arrival jam (J1403/J1404,
J1405, J1604, J1605,
J1805) 1 Check to see if the actuator
is operative without
hinderance.
Re-assemble or replace the actuator's return spring.
2 Check the operation of the
motor.
Check the transmission of
the gear drive .
* : Check the conveying
roller rotates and is
movable in the direction
of thrust without hinder-
ance.
If the roller won't rotate without hinderance, loosen the screws for
adjusting the position (at the gear train bracket) to mount the
driving gears, and tighten so that a gap between the gears and
frame is eliminated.
Fuser eject sensor stay
jam (J421X) 1 If paper jam occurrs at the
feedshift guide in the rear
cover assembly, check if
the guide is operative
without hinderance.
If the distance between the housing and the feedshift guide is too
small for the guide to move without hinderance, replace the rear
cover assembly.
2 Check if the eject sensor
does not show a false
detection.
Replace the defective eject sensor or the fuserunit.
Jam types Check description Corrective measures