The Background Is Colored - Kyocera ECOSYS M2135dn Service Manual

(1-4) The background is colored

Image sample
1. Table scanning
Trouble location
1 Original
2 Scanner adjust-
ment
3 Contact glass
4 Contact glass
assy
5 Home position
sensor
6 FFC cable CIS
7 Scanner carriage
8 LED
9 CIS
10 Main/Engine PWB
Check
1. Check if the background
density of the original docu-
ment is too dense.
2. Check if the original docu-
ment is floated during scan-
ning.
Check the scanner automatic
adjustment.
Check if the contact glass is
dirty.
Check the position where the
contact glass is attached.
Check the location where the
home position sensor is
attached.
Check the FFC cable connec-
tion between the CIS and the
main PWB / the engine PWB.
Or, check the wire's continuity.
Check the location where the
scanner carriage is attached.
Check if the LED is lit.
CIS is defective.
Main/Engine PWB is defective.
2S0/2S1/2S2/2S3/2S4/2S5/2SG/2SH/3RA-1
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 it.
Execute maintenance mode U411 [Table] to
adjust automatically. (see page 6-53)
If the contact glass is dirty, clean it and the
shading plate at the backside of it.
If the contact glass is dislocated, reattach it.
If the home position sensor is out of position,
reattach it.
If the connector is not inserted enough, rein-
sert it. Replace the wire if there is no continu-
ity.
If the scanner carriage is out of position, reat-
tach it.
If the LED is not lighted, replace the scanner
carriage and execute U411. (see page 4-48,6-
53 )
Replace the image scanner carriage and exe-
cute U411. (see page 4-48,6-53 )
Replace the main/engine PWB. (see page 4-
94)
7-44
Measures