HP 1100A - Manual (Page 81)

EN Improving print quality 81
Correcting print defects
Light print or fade
● The toner supply is low. You may be able to temporarily extend
the toner cartridge life. See “
Managing the toner cartridge .”
● The paper may not meet HP’s paper specifications (for example,
the paper is too moist or too rough). See “
Printer paper
specifications .”
● If the whole page is light, the print density adjustment is too light
or EconoMode may be on. Adjust the print density and disable
EconoMode within the printer properties. See “
Print using
EconoMode (save toner) .”
Toner specks
● The paper may not meet HP’s paper specifications (for example,
the paper is too moist or too rough). See “
Printer paper
specifications .”
● The printer may need to be cleaned. See “ Cleaning the printer ” or
“ Cleaning the printer paper path .”
Dropouts
● A single sheet of paper may be defective. Try reprinting the job.
● The moisture content of the paper is uneven or the paper has
moist spots on its surface. Try printing with new paper. See
“
Printer paper specifications .”
● The paper lot is bad. The manufacturing processes can cause
some areas to reject toner. Try a different kind or brand of paper.
● The toner cartridge may be defective. See “ Managing the toner
cartridge .”
Note If these steps do not correct the problem, contact an HP-authorized
dealer or service representative.
Vertical lines
● The photosensitive drum inside the toner cartridge has probably
been scratched. Install a new HP toner cartridge. See “
Changing
the toner cartridge .”