Canon Océ VarioStream 7000 Manual

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