HP Deskjet 450 Mobile Printer series - Manual (Page 8)

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Understanding printer buttons and LEDs
For a list of LED (light-emitting diode) combinations and what they indicate, see
LED Reference .
1 Battery charge LED – Lights up in green when battery is charging, and red
when there is a battery fault.
2 Left print cartridge LED – Lights up in amber when the tri-color print
cartridge is low on ink, and blinks when it needs to be replaced.
3 Right print cartridge LED – Lights up in amber when the black or photo
print cartridge is low on ink, and blinks when it needs to be replaced.
4 C ANCEL BUTTON – Cancels the current print job. The time it takes to cancel
depends on the size of the print job. Press this button only once to cancel a
queued print job.
5 R ESUME BUTTON – Resumes a print job that is waiting or after temporary
interruption (for example, when adding print media to the printer).
6 Resume LED – Lights up in amber when a print job is waiting, and blinks
when the printer requires user intervention (for example, to clear a paper
jam or to close an open cover).
7 P OWER BUTTON – Turns the printer off or on.
8 Power LED – Lights up in green when the printer is turned on using the AC
adapter or a 41-100% charged battery. When powered by battery, lights up
in amber when battery is 10-40% charged, and red when battery is below
10% charged. Blinks during printing.
9 Infrared LED – Lights up in green when the printer is receiving from an
infrared-sending device.
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