Question about Office Equipment & Supplies
For photocopiers the symptom that you have described could be accounted for by a number of things. The first step would be to determine where the problem is originating from. Dirty optics could be the main culprit. The mirrors used to reflect the image onto the drum unit can build up with dust and cause a darkening of the image or an uneven image darker on one side. Cleaning the optics will correct this. If there are bad or worn seals on the developing unit it may be spilling excess toner down one side of the page as the paper is passing over the transfer corona/roller. You can check for this by stopping the copy process before the paper gets to the fusing assembly. If the dark band is on the paper before it has reached the fuser than it is either the optics, a worn out or possibly over exposed drum or problems with the developing unit or exposure lamps if so equipped. If the copy is clean before it goes through the fusing unit then it could be the fusing rollers have worn out and need to be replaced or if lucky just the fuser cleaning wick, felt or blade is worn and needs to be replaced.
Posted on Aug 04, 2008
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Posted on Jan 02, 2017
Tips for a great answer:
Oct 09, 2012 | Brother Ink for Dcp-6690cw and Lc-1100
Aug 04, 2011 | Brother MFC-5860CN InkJet Printer
Jun 02, 2011 | Brother MFC 6490CW InkJet Printer
Do the following to
clean the print head:
INK key on the control panel.
the DOWN arrow key until CLEANING appears on the LCD.
the DOWN arrow key to select BLACK, COLOR or ALL depending on what you
want to clean.
The machine will
clean the print head. When cleaning is finished, the machine will go back
to Ready automatically. If you are experiencing a print quality issue, we
recommend you repeat the print head cleaning for each color showing an issue
at least five (4) times.
If you are
experiencing a print quality issue and want to see if the cleanings are
improving the print quality, print a Print Quality Check Sheet (PQCS) after the
first cleaning and then print another PQCS after repeating the print head
cleaning steps at least three (3) more times (4 total cleanings).
You can then compare the two Print Quality Check Sheets.
Do the following to
print a Print Quality Check Sheet:
Press INK key on the control panel.
TEST PRINT will appear on the LCD.
Press OK. PRINT QUALITY will appear on
Press COLOR START.
machine will generate the Print Quality Check Sheet (PQCS). On the PQCS each of
the four colors is represented by a slanted square pattern made up of 96
individual blocks. The colors should appear (from left to right): Black -
Yellow - Cyan - Magenta. Cyan is the light blue color and
Magenta is the pinkish color.
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