Konica Minolta bizhub C658 Service Manual page 1630

bizhub C658/C558/C458/C368/C308/C258
16.3.2 Skewed image/Image deviation
(1) Typical faulty images
The arrow in the exemplary image troubles indicates the paper feeding direction.
[1]
[1] Skewed image
(2) Troubleshooting procedure
Flowchart for isolating the cause area
• The figure below is a flowchart for isolating the cause area of image deviation / skewed image (four main cause areas are covered).
• After isolating the cause area according to the flowchart, please perform the troubleshooting described on the next page for each cause
area.
Symptom
Isolation of the cause area
Does the problem occur also
in scanned images by
using original glass?
NO
Cause area
ADF
Troubleshooting steps for each cause area
NOTE
▪ If the problem can not be solved after "(1) First steps of troubleshooting," check "(2) Individual adjustment items".
▪ In "(2) Individual adjustment item," perform adjustment and test according to the manual description procedure of each item.
< ADF >
(1) First steps of troubleshooting
Step
1 Check the set position of original and document width guide, and correct it if needed.
2 Check the paper path, and remove any paper pieces or foreign matters.
3 Check each roller for dirt and wear, and clean or replace it if needed.
[2]
Skewed image / Image deviation
Scan
What is the printing mode in
which the problem occurred?
Copy
NO
Does the problem occur even
with the test patterns in Test Mode?
YES
Scanner (IR) Paper feed tray
K TROUBLESHOOTING > 16. IMAGE QUALITY PROBLEM
[2] Image deviation
PC print*
YES
YES
Does the problem occur only
in a specific paper feed tray?
Content
K-302
* In case of image deviation at the time
of PC printing, please confirm beforehand
that there is no mistake in the print setting
of the PC application or printer driver.
NO
Paper transport section