HP Deskjet 450 Mobile Printer series - Manual (Page 55)

ENWW 7-7
Check the status of the print cartridges
If you are printing with a single print cartridge, the print speed may be
slower than normal. See
Single-cartridge printing mode .
Check available system resources
If less than 80 percent of the computer resources are available, printing
can be significantly slower. To make more computer resources available,
close all unused applications and resend your print job. If necessary,
restart your system and then resend your print job.
Be patient
Complex documents containing many fonts, graphics, and/or color photos
take longer to begin printing. Printing in
Best mode prints slower than
Normal or Fast ( Draft for Macintosh) modes. The Power LED blinks when
the printer is processing information.
Printing via a Bluetooth or infrared connection can take longer to print than
via a cable connection.
Unexpected printer shutdown
Check the power
If you are using AC power , make sure the power cord and power adapter
are connected firmly to the printer and to a working outlet, and that the
printer is turned on. The Power LED
should be green. Try turning the
printer off and then on again. If this does not solve the problem, turn off the
printer, unplug the power adapter from the printer, wait a few seconds, and
reconnect the power.
If you are using battery power , make sure the battery is installed properly.
Check the Power LED to see if the battery is sufficiently charged. If the
Power LED is amber or red, connect to an AC power source to begin
charging the battery.