Canon Océ VarioStream 7000 手册
8.4.2 Poor printing, cause and correction
A29246-X20-X-4-7680 / fa805.fm
349
8.4.2 Poor printing, cause and correction
Error source
Type of error and correction
Print contrast
< nominal value
< nominal value
Gray background
Background with
dark streaks
dark streaks
Streaked coloring
Charge corotron
-
Soiled wires, clean, replace.
Transfer corotron
-
-
-
Soiled wire, paper
fragments in
corotron, clean,
replace.
fragments in
corotron, clean,
replace.
Discharge corotron
-
Soiled wire, clean, replace.
Discharge strip
-
-
-
Soiled plastic strips,
clean
clean
Brush cleaning
-
-
Cleaning brush soiled or faulty, replace
cleaning brush.
cleaning brush.
Photoconductor
drum
drum
Photoconductor drum exposed to light for
too long. It recovers after several hundred
pages. Possibly replace.
too long. It recovers after several hundred
pages. Possibly replace.
With grooves,
possibly replace.
possibly replace.
Photoconductor
drum soiled, replace
drum soiled, replace
Paper transport
-
-
Paper transport
soiled, clean.
soiled, clean.
-
Fuser station
-
-
Cleaning belt soiled.
Advance cleaning
belt, replace.
Advance cleaning
belt, replace.
Loop puller force set
too strong. Set the
loop puller force
correctly.
too strong. Set the
loop puller force
correctly.
LED print head
-
-
-
Load error. Press
STOP.
STOP.
Error source
Type of error and correction
Bright spots /
streaks in printed
image
streaks in printed
image
Dark spots
Smudged print
image
image
Memory effects
ghost image
ghost image
Charge corotron
Wires soiled
-
-
-
Transfer corotron
Wire soiled. Paper
fragments in
corotron, clean,
replace
fragments in
corotron, clean,
replace
-
-
-
Discharge corotron
-
-
-
Soiled wire, clean,
replace.
replace.