Sharp AR-5420 Посібник з експлуатації - Сторінка 31
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6
TROUBLESHOOTING THE UNIT
This chapter describes misfeed removal and troubleshooting.
TROUBLESHOOTING
If any problem occurs, check the list below before contacting your authorised service
representative.
Problem
Unit does not
operate.
Blank copies
Copies are too
dark or too light.
Dust, dirt,
smudges appear
on copies.
Striped copies
Paper misfeeds
frequently.
Images rub off the
copy easily.
Printing is not
uniform between
the edges of the
paper and the
center.
Possible cause
Unit plugged in?
Power switch on?
Side cover closed securely? Gently close the side cover.
Front cover closed?
Is the original placed face
down on the original table?
Is the scan head locking
switch locked?
Is original image too dark or
too light?
Is the unit in the automatic
exposure mode?
Is the unit in the photo
exposure mode?
Original table or original
cover dirty?
Original smudged or
blotchy?
Is transfer charger clean?
Non-standard paper used? Use standard paper. If using special
Paper curled or damp?
Pieces of paper inside unit? Remove all pieces of misfed paper.
Paper guides in the paper
tray not set properly?
Too much paper in the
paper tray or multi-bypass
tray?
Is the paper too heavy?
The fusing temperature is
not appropriate.
Paper damp?
The fusing temperature is
not appropriate.
Solution
Plug the unit into a grounded outlet.
Turn the power switch on.
Gently close the front cover and then
close the side cover.
Place the original face down on the
original table.
Unlock the scan head locking switch.
Adjust the exposure manually.
Adjust the automatic exposure level.
Cancel the photo exposure mode.
Clean regularly.
Use a clean original.
Clean the transfer charger.
papers, feed the paper through the
multi-bypass tray.
Store paper flat in the wrapper in a
dry location.
Set the guides properly depending on
the paper size.
Remove excessive paper from the
tray.
Use paper within the specified range.
In the user programs, set "Fusing
temperature setting when the bypass tray
is used" (program 29) to "2 (High)".
Replace with dry paper. If the unit is
not used for long time, remove the
paper from the paper tray and store it
in its wrapper in a dry location.
In the user programs, set "Fusing
temperature setting when the bypass
tray is used" (program 29) to "1 (Low)".
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