HP OfficeJet Pro 8020 User Guide - Page 178

Setup, Printer Maintenance, To clean or align the printhead

Page 178 highlights

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 should 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. For more information, see HP support. ● 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. NOTE: 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. Always use the Power button to turn off the printer. Turning the printer off improperly can cause print quality problems. To clean or align the printhead 1. Load Letter or A4 unused plain white paper into the input tray. For more information, see Load paper. 2. From the printer control panel, touch or swipe down the tab at the top of the screen to open the Dashboard, and then touch ( Setup ). 3. Touch Printer Maintenance , select the desired option, and then follow the onscreen instructions. NOTE: You can also do the same from the HP printer software or embedded web server (EWS). To access the software or EWS, see Open the HP printer software (Windows) or Open the embedded web server. 172 Chapter 9 Solve a problem ENWW

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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 should
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. For more information, see
HP support
.
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.
NOTE:
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.
Always use the Power button to turn off the printer. Turning the printer off improperly can cause print quality
problems.
To clean or align the printhead
1.
Load Letter or A4 unused plain white paper into the input tray. For more information, see
Load paper
.
2.
From the printer control panel, touch or swipe down the tab at the top of the screen to open the
Dashboard, and then touch
(
Setup
).
3.
Touch
Printer Maintenance
, select the desired option, and then follow the onscreen instructions.
NOTE:
You can also do the same from the HP printer software or embedded web server (EWS). To
access the software or EWS, see
Open the HP printer software (Windows)
or
Open the embedded web
server
.
172
Chapter 9
Solve a problem
ENWW