Kyocera ECOSYS M3040dn Service Manual page 213

2. DP-scanning
Defective part
Original document
1
Adjustment of the
scanner
2
Contact glass
3
Contact glass assy Check the location the contact
4
Home position
5
sensor
Installing DP
6
FFC cable CCD
7
Lamp unit
8
LED PWB
9
CCD PWB
10
Control PWB
11
Check description
1. Check if the background
density of the original
document is too dense.
2. Check if the original
document is floated during
scanning.
Check the automatic adjustment
of the scanner.
Check whether the contact glass
is dirty.
glass is mounted.
Check the location the home
position sensor is mounted.
Check whether the DP frame is
distorted or the hinges are dam-
aged.
Check the FFC cable between
the CCD and control PWB is
properly connected. Or, verify
conduction of the wire.
Check the location the lamp unit
is mounted.
Check that the LED is lit.
CCD PWB is defective.
The control PWB is defective.
1. If the background density of the original
document is too dense, perform automatic
background adjustment.Or, adjust density
with background adjustment.
2. If the original document is floated during
scanning, press down the original
document.
Perform maintenance mode U411,
table(Chart1)_All.
(see page 1-3-54)
If the contact glass is dirty, clean the contact
glass, and the bottom part of the shading plate.
Re-mount the contact glass if is hanged off.
Re-mount the home position sensor if it is
hanged off.
Replace the DP.
Reinsert the connector if its connection is
loose. Or, if conduction is lot, replace the wire.
Re-mount the lamp unit if it is hanged off.
If the LED is not lit, replace the ISU and
perform U411.
Replace the ISU and perform U411.
Replace the control PWB.(see page 2-2-12)
1-4-51
2NM/2NX/2NY/2NZ/2P0/2P6
Corrective Action