Kyocera ECOSYS M2135dn Service Manual page 421

(1-5) Vertical white streaks or bands appear
Image sample
1. Table scanning
Trouble location
1 Original
2 Contact glass
Shading plate
3 Scanner carriage
4 CIS
5 Main/Engine PWB
2. DP scanning
Trouble location
1 Original
2 Slit glass
Shading plate
3 Scanner carriage
4 CIS
5 Main/Engine PWB
Check
Check if the original document
is dirty.
Check if the contact glass and
shading plate are dirty.
Check if dust or dirt adheres the
scanner carriage.
CIS is defective.
Main/Engine PWB is defective.
Check
Check if the original document
is dirty.
Check if the slit glass is dirty.
Check if dust or dirt adheres the
scanner carriage.
CIS is defective.
Main/Engine PWB is defective.
2S0/2S1/2S2/2S3/2S4/2S5/2SG/2SH/3RA-1
Replace the original document if it is dirty.
If the contact glass is dirty, clean it and the
shading plate at the backside of it. (see page
4-48)
If dust or dirt adheres to the scanner carriage,
remove it from the optical path.
Replace the image scanner carriage and exe-
cute U411. (see page 4-48,6-53 )
Replace the main/engine PWB. (see page 4-
94)
Replace the original document if it is dirty.
If the slit glass is dirty, clean it.
If dust or dirt adheres to the scanner carriage,
remove it from the optical path.
Replace the image scanner carriage and exe-
cute U411. (see page 4-48,6-53 )
Replace the main/engine PWB. (see page 4-
94)
7-46
Measures
Measures