HP color laserjet 4500 Manuale Utente
EN
Image defect details 183
9
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This may be a repetitive defect. If so, the lines will be repeated at
a consistent interval down the page.
a consistent interval down the page.
•
The printer needs to be cleaned.
•
There is a problem in the heating element.
Vertical white lines
•
If white lines or streaks appear only in the black areas of the
printed media, print several configuration pages to clear the
anomaly. If this does not clear the problem, check the sleeve
surface to confirm the defect, then replace the black toner
cartridge.
printed media, print several configuration pages to clear the
anomaly. If this does not clear the problem, check the sleeve
surface to confirm the defect, then replace the black toner
cartridge.
•
If white lines appear only in a particular color, try printing several
configuration pages to clear the error. If the error does not clear,
check the sleeve surface to confirm the defect, then replace the
defective toner cartridge.
configuration pages to clear the error. If the error does not clear,
check the sleeve surface to confirm the defect, then replace the
defective toner cartridge.
•
There is a lack of toner or the toner cartridge is faulty.
•
There is dirt in the laser path.
•
The fuser is defective.
•
A mirror in the laser scanner is dirty.
Mechanical instability in the scanner mechanism or the optics can
cause wavy characters.
cause wavy characters.
•
Reprint the job to ensure that the problem persists.
•
If the failure remains, replace the scanner assembly.
Wavy characters