HP Deskjet 450 Mobile Printer series - Manual (Page 45)

ENWW 6-4
To align in Macintosh (USB only)
1 Open the HP Inkjet Utility and click the Calibrate Device button.
You are prompted to specify the combination of print cartridges you are
using.
2 Specify the combination of print cartridges you are using.
An alignment page prints.
3 Follow the instructions on the screen to select the best-aligned pattern from
the printed page.
To align in DOS
1 Run the c:\hp450\align.bat file.
2 Follow the instructions on the screen to print an alignment page and to
select the best-aligned pattern from the printed page.
Replacing the print cartridges
When a print cartridge has to be replaced, follow these instructions:
1 Remove the new print cartridge from its package and then pull the colored
tab to remove the protective film from the cartridge.
2 With the printer turned on, open the front access cover. Wait for the
carriage to go to “print cartridge change” position. This should take only a
few seconds.
*Print cartridge change position.
To prevent clogs, ink failure, and bad electrical connections, do not touch the
print cartridge ink nozzles or copper contacts, and do not remove the copper
strips.
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Only remove or install print cartridges when the carriage is in “print cartridge
change” position.