HP 2170 - Manual (Page 47)

reference guide
maintain your hp psc
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6 Pull the end of the latch toward you, press down until it stops, and then
release. Make sure the latch catches below the bottom tabs.
7 Close the print-carriage access door.
align the print cartridges
The HP PSC prompts you to align cartridges every time you install or replace a
print cartridge. Aligning the cartridges ensures high-quality output.
To align the print cartridges when prompted:
1 Press Enter on the front panel.
A page of patterns is printed. The cartridges are aligned correctly. Recycle
or discard the page.
To align the cartridges at any other time:
1 Press Setup.
2 Press 2, then press 2.
This selects Maintenance, and then selects Align Print Cartridges.
A page of patterns is printed. The cartridges are aligned correctly. Recycle
or discard the page.