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176 Chapter 9 Image quality EN
The paper does not meet HP paper specifications.
The printer’s operating environment does not meet specifications.
The print density is set incorrectly.Change to a darker setting and
retry printing.
The DC controller PCA is defective.
The high-voltage power supply PCA is defective.
The transfer roller is defective
.
The message TRANSFER KIT LOW REPLACE TRANSFER KIT
appears on the printer control panel. Print out a configuration page
to verify the remaining life of the transfer belt. Replace the transfer
belt if necessary.
The moisture content of your media may be uneven or too low. Use
media from a different source or from a new ream of paper.
If some areas of the paper reject toner, try using paper from a
different source or from a new ream of paper.
The media may be too rough and exceed media specifications. See
“Supported media specifications” on page 90. Do not use paper that
exceeds specifications.
Check that the printing environment is within humidity specifications.
Faded print could result from low toner in a particular toner
cartridge. If a Toner Low or Toner Out message displays on the
printer control panel, replace the appropriate toner cartridge.
Check to see if the transfer belt is contaminated. Use a lint-free cloth
to clean any contaminants from the transfer belt surface.
The connections into CL2 (ITB unit separation clutch) and CL3 (ITB
cleaning roller separation clutch) have been switched at the
clutches, not on the PCB. (This typically shows a light black print on
the page.)
The toner cartridge is getting low on toner.
The toner density setting is not adjusted correctly.
Dropouts
Faded print, faded areas, or faded vertical streaks
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