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
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.
Summary of Contents for VarioStream 7000 SINGLE
Page 1: ...Oc Oc Operating Manual Oc VarioStream 7000 SINGLE Pinfed...
Page 4: ......
Page 24: ...1 8 Statutory requirements 24 A29246 X20 X 4 7680 all103 fm...
Page 58: ...3 5 Paper feed options 58 A29246 X20 X 4 7680 fa301 fm...
Page 208: ...6 8 1 Cleaning the toner mark sensor 208 A29246 X20 X 4 7680 fa603 fm...
Page 354: ...8 6 Permitting or blocking remote access 354 A29246 X20 X 4 7680 fa805 fm...
Page 373: ...Technical data A29246 X20 X 4 7680 faA01 fm 373 Weight Approx 1 260 kg simplex printing system...
Page 374: ...Technical data 374 A29246 X20 X 4 7680 faA01 fm...
Page 384: ......