Simple Troubleshooting - Konica Minolta bizhub 500 User Manual

11
11.4

Simple Troubleshooting

Symptom
Main The machine does not
body start up when the main
power switch is turned
on.
Correctly insert the
power supply plug into
the electrical outlet.
The printed output is
too light.
The printed output is
too dark.
The printed output is
blurry.
There are dark specks
or spots throughout the
printed output. There
are streaks in the print-
ed output.
11-10
Possible Cause
Is no power supplied
from the electrical out-
let?
Has the sub power
switch been turned on?
Are the doors, such as
the front doors (left and
right) or the finisher
door, open?
Is there no paper that
matches the docu-
ment?
Is the copy density set
too light?
Is the paper damp?
Is the copy density set
too dark?
Was the document not
pressed close enough
against the original
glass?
Is the paper damp?
Was the document not
pressed close enough
against the original
glass?
Is the original glass
dirty?
Is the left partition glass
dirty?
Is the document pad
dirty?
Was the original docu-
ment printed on highly
translucent material,
such as trace paper or
overhead projector
transparencies?
Troubleshooting
Remedy
After the main power switch and
sub power switch are turned off,
correctly insert the power supply
plug into the electrical outlet.
Turn on the sub power switch.
Securely close the doors, such
as the front doors (left and right)
and the finisher door.
Load paper of the appropriate
size into the paper tray.
Touch [Dark] in the Density
Screen to copy at the desired
copy density. (page 3-14)
Replace the paper with new pa-
per.
Touch [Light] in the Density
Screen to copy at the desired
copy density. (page 3-14)
Position the document so that it
is pressed closely against the
original glass.
Replace the paper with new pa-
per.
Position the document so that it
is pressed closely against the
original glass.
Wipe the glass with a soft, dry
cloth. (page 12-2)
Wipe the glass with a soft, dry
cloth. (page 12-2)
Wipe the document pad with a
soft, dry cloth. (page 12-3)
Place a blank sheet of paper on
top of the document.
bizhub 500/420