Sharp DM-3551 Operation Manual page 236

TROUBLESHOOTING
Problem
Smudges on printed
sheets
Cannot select the
desired paper in the
printer driver or on the
copier operation panel.
Paper misfeeds
frequently.
Printed paper is
wrinkled or the image
rubs off easily.
The contrast on the
touch panel is too high
or too low.
A notice page is
printed when a print
job is sent to the
printer for retention.
Password entry is
requested.
Priority of reserved
print jobs cannot be
changed.
4-10
Check
Is a message indicating a need of
maintenance or replacement of
developer cartridge displayed
([ERROR] indicator on the main unit
operation panel lit)?
Has the paper size and type been
set from the operation panel on the
printer?
Paper curled or damp?
Paper curled and misfed in the
duplex module or finisher?
Multiple sheets of paper fed
simultaneously?
Is paper size or weight out of the
allowable range?
Paper damp?
Is LCD contrast properly adjusted?
Has the number of job sreached the
maximum of 100 jobs in retention?
Password set in the retention
function?
Has the paper to be used run out?
Exit tray full?
Solution or cause
See the Operation Manual (Read this
document before installing the product.).
Be sure to set the paper size referring to
"Setting the paper size and type" when
you change the paper size in tray 1. (page
1-19)
Do not use curled or crimped paper. If you
do not use paper for a long time, store
paper in the wrapper in a dry location.
Paper may be curled when output
depending on the paper type and quality.
In some cases turning the paper over in
the tray will reduce misfeeding due to
curling.
Remove the paper
from the paper tray
or the bypass tray,
fan the paper as
shown in the
illustration, and
then load it again.
Use paper in the allowable range.
Be sure to store paper in the wrapper in a
dry location and do not store paper in a
location that is
humid
at a high temperature or an extremely
low temperature.
Adjust the contrast using "DISPLAY
CONTRAST" of custom settings. (page
3-7)
No further jobs can be retained until some
jobs already in retention are deleted.
Password is needed when executing
printing. If the password is not known,
printing cannot be executed.
Load paper. (page 1-16)
Remove paper from the exit tray if it is
full.