Canon IMAGECLASS MF4890DW Basic Operation Manual page 103

Symptom
The printed paper has
vertical streaks.
Smudge marks of
spattering toner
appear around the
text or as patterns.
The overall print result
is dark.
The bottom edge of
paper has smudge
marks.
A portion of the page
is not printed.
Printed bar codes
cannot be scanned.
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Example Action
•
Verify that the appropriate paper is being used (
•
Print a test page with new paper.
•
If the machine is not in use for a long time after the toner cartridge
has been replaced, change the <Special Mode B> settings from
the operation panel.
•
When copying, change the <Special Mode Z> settings from the
operation panel.
•
When faxing, change the <Special Mode Z> and
<Special Mode C> settings from the operation panel.
•
When printing from a computer, change the <Special Mode D>
settings from the operation panel, or change the [Special Print
Adjustment] settings from the printer driver.
•
Verify that the appropriate paper is being used (
•
Change the <Special Mode U> settings from the operation panel.
•
Adjust the copy density settings (
•
If the machine is exposed to direct sunlight or strong light, move the
machine to another location.
Provide a margin around the data.
Provide a margin around the data.
If printing a bar code from a computer, open the printer driver and
select [Finishing]  [Advanced Settings]  [Special Print Mode]
 [Special Settings 1] to change the printing preferences.
→
p.22).
→
p.22).
→
p.32).
103