HP OfficeJet Pro 8120 User Guide - Page 113

Maintain the printhead and cartridges

Page 113 highlights

Table 9-4 Clean the document feeder Feature Description 1 Rollers 2 Separator pad 3. Lightly dampen a clean lint-free cloth with distilled water, then squeeze any excess liquid from the cloth. 4. Use the damp cloth to wipe any residue off the Rollers (1) or Separator pad (2). NOTE: If the residue does not come off using distilled water, try using isopropyl (rubbing) alcohol. 5. Close the cover of the document feeder. Maintain the printhead and cartridges If you are experiencing problems with printing, you might have a problem with the printhead. You must perform the procedures in the following sections only when directed to do so for resolving print quality issues. Performing the aligning and cleaning procedures unnecessarily can waste ink and shorten the life of the cartridges. ● Clean the printhead if your printed output is streaked or has any incorrect or missing colors. There are three stages of cleaning. Each stage lasts about two minutes, uses one sheet of paper, and uses an increasing amount of ink. After each stage, review the quality of the printed page. You must only initiate the next phase of cleaning if the print quality is poor. If print quality still seems poor after you complete all stages of cleaning, try aligning the printhead. If print quality problems persist after cleaning and aligning, contact HP support. Visit hp.com/support for more information. ● Align the printhead when the printer status page shows streaking or white lines through any of the blocks of color, or if you are having print quality issues with your printouts. The printer automatically aligns the printhead during the initial setup. Cleaning uses ink, so clean the printhead only when necessary. The cleaning process takes a few minutes. Some noise might be generated in the process. Maintain the printhead and cartridges 105

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Table 9-4
Clean the document feeder
Feature
Description
1
Rollers
2
Separator pad
3.
Lightly dampen aclean lint-free cloth with distilled water, then squeeze any excess liquid from the cloth.
4.
Use the damp cloth to wipe any residue off the Rollers (1) or Separator pad (2).
NOTE:
If the residue does not come off using distilled water, try using isopropyl (rubbing) alcohol.
5.
Close the cover of the document feeder.
Maintain the printhead and cartridges
If you are experiencing problems with printing, you might have a problem with the printhead. You must perform
the procedures in the following sections only when directed to do so for resolving print quality issues.
Performing the aligning and cleaning procedures unnecessarily can waste ink and shorten the life of the
cartridges.
Clean the printhead if your printed output is streaked or has any incorrect or missing colors.
There are three stages of cleaning. Each stage lasts about two minutes, uses one sheet of paper, and uses
an increasing amount of ink. After each stage, review the quality of the printed page. You must only initiate
the next phase of cleaning if the print quality is poor.
If print quality still seems poor after you complete all stages of cleaning, try aligning the printhead. If print
quality problems persist after cleaning and aligning, contact HP support. Visit
hp.com/support
for more
information.
Align the printhead when the printer status page shows streaking or white lines through any of the blocks of
color, or if you are having print quality issues with your printouts.
The printer automatically aligns the printhead during the initial setup.
Cleaning uses ink, so clean the printhead only when necessary. The cleaning process takes a few minutes. Some
noise might be generated in the process.
Maintain the printhead and cartridges
105