HP K550 User's Guide - Page 40

Printer Services, Print PQ print quality, diagnostic Toolbox Windows, HP Printer Utility Mac OS - firmware

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Toolbox is installed), and then click the Printer Services tab. Click Print PQ (print quality) diagnostic page and follow the onscreen instructions. ● Toolbox (Windows): Click the Printer Services tab, and then click Print PQ (print quality) diagnostic page and follow the onscreen instructions. ● HP Printer Utility (Mac OS): Click Print PQ Diagnostic Page from the Information and Support panel. 1 Printer Information: Shows printer information (such as the product model number, serial number, and firmware version number), the number of pages printed from the trays and duplex unit, the ink level information, and the printhead health status. 2 Test Pattern 1: If the lines are not straight and connected, align the printheads. See To align the printheads. 3 Test Pattern 2: If there are thin white lines across any of the colored blocks, clean the printheads. See To clean the printheads. 4 Test Pattern 3: If there are dark lines or white gaps where the arrows are pointing, calibrate the linefeed. See To calibrate the linefeed. 32 Chapter 4 Maintaining and troubleshooting ENWW

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Toolbox is installed), and then click the
Printer Services
tab. Click
Print PQ (print quality)
diagnostic page
and follow the onscreen instructions.
●
Toolbox (Windows):
Click the
Printer Services
tab, and then click
Print PQ (print quality)
diagnostic page
and follow the onscreen instructions.
●
HP Printer Utility (Mac OS):
Click
Print PQ Diagnostic Page
from the
Information and
Support
panel.
1
Printer Information:
Shows printer information (such as the product model number, serial number, and firmware
version number), the number of pages printed from the trays and duplex unit, the ink level information, and the
printhead health status.
2
Test Pattern 1:
If the lines are not straight and connected, align the printheads. See
To
align
the
printheads
.
3
Test Pattern 2:
If there are thin white lines across any of the colored blocks, clean the printheads. See
To
clean
the
printheads
.
4
Test Pattern 3:
If there are dark lines or white gaps where the arrows are pointing, calibrate the linefeed. See
To
calibrate
the
linefeed
.
32
Chapter 4
Maintaining and troubleshooting
ENWW