Konica Minolta BIZHUB 131f User Manual page 210

16
Problem
Printouts are of uneven
density
Printouts have irregulari-
ties
Printouts have white and/
or black lines
Printouts have toner
smudges
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16-32
Possible cause
• The toner may be unevenly distributed inside the toner car-
• The drum cartridge may be defective. Remove the drum car-
A B CDE CDE
A B CDE CDE
A B CDE CDE
A B CDE CDE
A B CDE CDE
The paper you are using may have absorbed moisture, perhaps
due either to high humidity or water having been spilled on the pa-
per supply. Toner will not adhere well to wet paper.
Replace the paper with dry paper.
ABCDE
ABCDE
ABCDE
ABCDE
ABCDE
• The ADF glass or rollers of the ADF may be dirty.
• Clean the ADF glass and/or the rollers of the ADF. (See
• The drum charge wire may be dirty. Open the front cover, then
ABCDE
ABCDE
• The toner cartridge or drum cartridge may be defective. Re-
ABCDE
ABCDE
ABCDE
• The drum charge wire may be dirty. Open the front cover. To
• The document glass is dirty.
• The document pad is dirty.
ABCDE
ABCDE
• The toner cartridge or drum cartridge may be defective. Re-
ABCDE
ABCDE
• If you find smudges on the back of the printouts, the transport
ABCDE
• The drum charge wire may be dirty. Open the front cover. To
Maintenance and Troubleshooting
tridge. Remove the toner cartridge and shake it a few times to
redistribute the toner inside.
tridge and check it for damage. If the problem persists, replace
the drum cartridge.
page 16-3.)
gently pull and push back the blue rod to clean the drum charge
wire. (See page 16-5.)
move the cartridges and check them for damage. If the problem
persists, replace either or both of the cartridges as indicated.
clean the drum charge wire, pull the blue rod toward you, mak-
ing sure it fully extends. Then return the rod to its original posi-
tion. See page 16-5.
Wipe the document glass with a dry soft cloth.
Clean the document pad with a soft cloth dampened with a mild
detergent.
move the cartridges and check them for damage. If the problem
persists, replace either or both of the cartridges as indicated.
roller may be dirty. Your machine normally cleans the transport
roller automatically. If other solutions fail, please contact your
local technical representative.
clean the drum charge wire, pull the blue rod toward you, mak-
ing sure it fully extends. Then return the rod to its original posi-
tion. See page 16-5.
bizhub 131f/190f