Troubleshooting
Print quality problems
6-39
FS-6700
Dirt on the top edge or back of the paper
Incorrect printing registration
Check point
Suggested remedy
• If the display shows that the toner is running out,
replace the toner container with a new one. See page 3,
• Open the printer side cover and check that the main
charger unit is correctly seated. To do this, take out the
main charger unit from the printer; then reinstall it care-
• Clean the main charger wire by pulling the green colored
cleaning knob in and out several times.
Check point
Suggested remedy
Check toner contamination in
various parts.
• Dirty edges and back of the paper can be caused by toner
accummulated on such parts as the paper chute, paper
transportation paths, the bottom of the developer unit,
and the fuser inlet. Clean these areas and parts to
remove toner.
Check the transfer roller.
• If the transfer roller is contaminated with toner, clean
the transfer roller using a vacuum cleaner; or by continu-
ously printing a low-density page until the symptom has
faded away.
Check point
Suggested remedy
Wrong application manipula-
tion
• Check driver setting. If using Prescribe commands,
review that the proper syntax is followed.
Check the paper size sensor
in the paper cassette.
• Check switches on KP-614 and KP-616 boards. Refer to
the following section.
Summary of Contents for Ecosys FS-6700
Page 1: ...Service Manual L A S E R P R I N T E R Ecosys FS 6700 ...
Page 6: ...Conventions Preface vi This page left intentionally blank ...
Page 11: ...B 5 FS 6700 ...
Page 61: ...Troubleshooting Print quality problems 6 42 FS 6700 This page left blank intentionally ...
Page 83: ...Disassembly Disassembly Option paper feeder 5 22 FS 6700 This page left blank intentionally ...
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