6.Troubleshooting
238
Problem
Cause
Details
Solution
appear at 27 mm
(or 81 mm)
intervals
Note: 81 mm = 27
mm × 3 pitch
correctly.
of machine use or over
time.
the AIO.
White spots
appear at 25 mm
intervals
There is a problem with
the image transfer unit.
The problem presents over
time.
Check the ITB or
replace the image
transfer unit.
Uneven image
density at left, right
or front, back of
the paper
Toner in the toner unit
temporarily not applied
evenly.
Can occur when printing
light image areas
repeatedly.
The problem presents over
time.
Remove and reinstall
the AIO.
There are irregularities on
the surface of the ITB.
•
Can occur with
continuous printing of
the same kind of
image.
•
The problem presents
over time (70 K or
more).
Check the ITB or
replace the image
transfer unit.
Uneven gloss
appears at the
leading edge of
solid coverage
Hot offset
•
Thin paper
(transparency)
•
The paper fibers are
across the width of the
paper.
•
Can occur at the
beginning of machine
use or over time.
•
Use thicker
paper.
•
Use paper with
fibers running
the length of the
paper.
Colors different
(some dark, others
light)
If the image density mode
is adjusted during a job,
the density will change
during the job.
An adjustment to the
density should be done
after 200 sheets have
printed.
Can occur at the beginning
of machine use or over
time.
Do manual color shift
adjustment before
feeding paper:
Printer model:
Menu key > System
settings > Color
Den/Reg
MF model:
Settings
icon > System
settings > Color
Содержание M C250FW
Страница 2: ......
Страница 8: ......
Страница 12: ......
Страница 34: ...3 Preventive Maintenance 22 to remove any remaining moisture ...
Страница 45: ...4 Replacement and Adjustment 33 6 Release the belt A and then remove the front cover unit B ...
Страница 103: ...4 Replacement and Adjustment 91 MF model 11 Remove the fusing transport drive unit A ...
Страница 112: ...4 Replacement and Adjustment 100 MF model 8 Remove the belt cover A ...
Страница 114: ...4 Replacement and Adjustment 102 12 On the MF model only remove the FFC harness guide A 13 Remove the duplex motor M5 A ...
Страница 117: ...4 Replacement and Adjustment 105 MF model 3 On the MF model only remove the USB dongle A and interface cover B ...
Страница 123: ...4 Replacement and Adjustment 111 MF model 3 On the MF model only remove the USB dongle A and interface cover B ...
Страница 183: ...5 System Maintenance 171 8 Press OK on the screen or press on the number keys to exit ...
Страница 188: ...5 System Maintenance 176 Special Sender List Configuration Page Printer model ...
Страница 189: ...5 System Maintenance 177 MF model ...
Страница 191: ...5 System Maintenance 179 MF model The following contents can be confirmed in the Maintenance Report ...
Страница 260: ...6 Troubleshooting 248 Flowchart ...
Страница 271: ...7 Detailed Descriptions 259 ...
Страница 297: ...7 Detailed Descriptions 285 Boards Block Diagram Printer Model ...
Страница 301: ......