Kyocera TASKalfa 1800 Service Manual page 214

2. DP-scanning
Defective part
The settings of the
adjustment of den-
sity
1
Settings of anti-off-
2
set
Adjustment of the
scanner
3
Contact glass
4
Home position
5
sensor
Scanning position
of the DP
6
FFC cable CIS
7
CIS assembly
8
CIS
9
Main/Engine PWB
10
Check description
Check the settings of the adjust-
ment of density.
Check the settings of anti-offset. If anti-offset is set to on, set it to off.
Check the automatic adjustment
of the scanner.
Check whether the contact glass
is dirty.
Check the location the home
position sensor is mounted.
Check whether the scanning
position of the DP is wrong.
Check the FFC cable between
the CIS and main/engine PWB is
properly connected. Or, verify
conduction of the wire.
Check the location the CIS
assembly is mounted.
CIS is defective.
The main/engine PWB is defec-
tive.
1. Deactivate EcoPrint if it is activated. Or, if
the density is too low, chosse an image
quality that suits the original docuemt in
type.
2. Increase density.
3. Perform the background color adjustment
using the system menu.
Perform maintenance mode U411,
table(Chart1)_All.
(see page 1-3-75)
If the contact glass is dirty, clean the contact
glass, and the bottom part of the shading plate.
Re-mount the home position sensor if it is
hanged off.
If the scanning position of the DP is shifted,
perform maintenance mode U068, DP
Read.(see page 1-3-35)
Reinsert the connector if its connection is
loose. Or, if conduction is lot, replace the wire.
Re-mount the CIS assembly if it is hanged off.
Replace the CIS and perform U411.
Replace the main/engine PWB.(see page 2-2-
11)
1-4-42
2NC/2NF/2NG/2NN/3P7/3P8/3P9
Corrective Action