IBM 1220 User Reference page 36

Symptom
Print too dark
Gray background
Uneven print density
Print irregularities
Cause
• The Toner Darkness setting
is too dark.
• The print cartridges are
defective.
• The Toner Darkness setting
is too dark.
• The print cartridges are
defective.
• The print cartridges are
defective.
• The transfer roller is worn
or defective.
• The image transfer unit is
worn or defective.
• Paper has absorbed
moisture due to high
humidity.
• You are using paper that
does not meet the printer
specifications.
• The image transfer unit and
transfer roller are worn or
defective.
• The fuser is worn or
defective.
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Solution
• Select a different Toner Darkness setting
from the printer driver before sending the
job to print.
• Replace the print cartridges. See
Replacing print cartridges.
• Select a different Toner Darkness setting
from the printer driver before sending the
job to print.
• Replace the print cartridges. See
Replacing print cartridges.
• Replace the print cartridges. See
Replacing print cartridges.
• Replace the transfer roller. See
the image transfer unit and transfer
roller.
• Replace the image transfer unit. See
Replace the image transfer unit and
transfer roller.
• Load paper from a fresh package in the
paper tray. For information on storing
paper, see Storing paper.
• Avoid textured paper with rough finishes.
• Replace the image transfer unit and
transfer roller. See Replace the image
transfer unit and transfer
• Replace the fuser. See
fuser.
Replace
roller.
Replacing the