EN Chapter 7 Troubleshooting 229
Note Toner cartridges are rated for 6,000 or 10,000 images at 5 percent coverage (depending on the model).
It is possible to wear out the gears and the cartridge seals before
TONER LOW
appears if the number of
images exceeds 6,000 or 10,000 (depending on the model). See “EconoMode” below. A depleted
cartridge will often create print defects.
!
Check the surface of the photosensitive drum in the cartridge to see if it has been damaged or
scratched. Touching the drum will contaminate the photosensitive surface and can cause
spotting and defects during printing.
!
White areas on the page might indicate that the drum has been exposed to light for too long. If
white areas appear, stop the printer and wait a few minutes. This should eliminate most defective
images. If not, place the toner cartridge in a dark environment for several days. This can restore
some life to the drum.
EconoMode
EconoMode creates draft-quality printing by reducing the amount of toner on the printed page by up
to 50 percent. Advise the customer to turn EconoMode on or off from the printer driver or software
application, because those settings override the control panel settings. EconoMode settings can also
be changed from the print quality menu.
CAUTION HP does not recommend full-time use of EconoMode. If EconoMode is used frequently, it is possible
that the toner supply will outlast the mechanical parts in the toner cartridge.
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