Streaks Are Printed Horizontally - Kyocera TASKalfa 6501i Service Manual

(7) Streaks are printed horizontally.

Print example
1. Table scanning
Defective part
Original document
1
Contact glass
2
Ajusting scanner
3
FFC cable CCD
4
FFC cable LED
5
SATA cable ISC
6
LED PWB
7
ISC PWB
8
Main PWB
9
Check description
Check whether the original
document is dirty.
Check whether the contact glass
is dirty.
Check that the image at the back
of the size indicator has been
rendered.
Check the FFC cable between
the CCD sensor and ISC PWB is
properly connected. Or, verify
conduction of the wire.
Check the FFC cable between
the LED PWB and ISC PWB is
properly connected. Or, verify
conduction of the wire.
Check the SATA cable between
the ISC PWB and main PWB is
properly connected. Or, verify
conduction of the wire.
Check that the LED is lit.
The ISC PWB is defective.
The main PWB is defective.
If the original document is dirty, replace.
If the contact glass is dirty, clean the contact
glass, and the bottom part of the shading plate.
1. If the image at the back of the size indica-
tor, has been rendered perform mainte-
nance mode U066, Front. (see page 1-3-
53)
2. Perform maintenance mode U411,
Table(Chart1)_Input.(see page 1-3-152)
Reinsert the connector if its connection is
loose. Or, if conduction is lot, replace the wire.
Reinsert the connector if its connection is
loose. Or, if conduction is lot, replace the wire.
Reinsert the connector if its connection is
loose. Or, if conduction is lot, replace the wire.
If the LED is not lit, replace the LED PWB and
perform U411.
Replace the ISC PWB and perform U411.
(see page 1-3-152)
Replace the main PWB.(see page 1-5-74)
1-4-178
Corrective Action
2N8/2N7