5 ] Print-Image Problems - Brother MFC990CW Service Manual

[ 5 ] Print-image problems

If there is any problem with any image printed, first make a copy using the machine.
If the copied image is normal, the cause of the problem may be the sending station (e.g., PC and
digital camera) or the memory card* inserted; if it is abnormal, proceed with the following
checks:
Examples of Defective Images
Completely blank
Straight vertical
stripes
Print edges not
aligned
Separated lines
over the whole
page
All black Random color
Blurred vertical White vertical
stripes streaks
Random missing White horizontal
dots streaks
Overlapping lines Separated lines at
at the trailing the trailing edge
edge of the of the recording
recording paper paper
4-36
*For models with PhotoCapture Center
Light
Ink splash
Stained leading
edge of recording
paper
Characters
having shadows
(ghost)
VWXYZ
Dark
Ink splash
Overlapping
lines over the
whole page
Stains in the
center of, or over
the whole page
of, the recording
paper
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