Canon FAXPHONE L80 Basic Manual page 100

I Does paper not feed through one sheet at a time?
Be sure to fan the stack of paper before placing it in the multi-purpose tray.
I Is an envelope not loading correctly?
Make sure you do not stack more than 7 envelopes in the multi-purpose tray.
I Is some of the document content not printing?
If some of the document content is not printing, check that the USB cable is securely
plugged in at both ends. Make sure your cable does not exceed 16.4 feet
(5 meters). Check your application's print setup to make sure your printer is
selected.
I Does some of the document content not fit on the page?
Make sure paper is aligned correctly in the multi-purpose tray. Check that margins
and paper size are set correctly in your printing application. Also, check that the
scaling is set appropriately in the printer driver settings. The scaling may be set to
enlarge the document page to a size that is too large for the paper.
I Is printing not clear?
Check the print resolution. A higher resolution prints more clearly.
I Do fonts not print smoothly?
Bitmapped fonts designed for dot matrix printers will not look smooth when printed
by your high-resolution printer. Choose another font. Make sure you install an outline
font manager such as Adobe Type Manager or Bitstream Facelift, or that you choose
a TrueType font.
I Is the printing not dark enough?
Check the print settings, such as the print resolution, brightness, contrast, and toner
saver. Try replacing the toner cartridge.
I Did a toner low warning appear while printing?
If you want to continue printing your document, even though you are low on toner,
change the TONER SUPPLY LOW setting on the printer from RX TO MEMORY to
KEEP PRINTING. (Even if the toner cartridge is out of toner, the document will not
be stored in memory.)
I Do vertical white streaks appear?
Vertical white streaks may appear when the error message CHANGE CARTRIDGE is
displayed. This situation indicates that the toner level is low or that the toner is
unevenly distributed in the cartridge.
To resolve the situation, open the front cover of the printer and remove the toner
cartridge. Gently rock the cartridge from side to side five or six times to evenly
distribute the toner inside. Replace the cartridge in the printer, and close the front
cover.
If redistributing the toner does not resolve the situation, replace your cartridge.
(1 p. 8-7)
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Troubleshooting Chapter 9