HP Deskjet 642c Printer - Manual (Page 8)

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Using Your Printer
Buttons and Lights
The two buttons on the front of your HP DeskJet printer let you turn the printer on
and off, or to resume printing. The lights give you visual cues about the state of
your printer.
Only use the Power Button on the front of the printer to turn the printer on
and off. Using a power strip, surge protector, or a wall-mounted switch to
turn the printer on and off may cause premature printer failure.
When these lights are... You need to...
Turned off and turned off
Press Power to turn on the printer.
Steadily lit and turned off Send a document to the printer. The printer is in the
ready-to-print state.
Steadily lit and flashing • If you just installed a print cartidge, make sure the
cartridge is securely snapped into the printer with
the arrow aligned with the dots on the top of the
print cartridge cradle.
• Close the top cover of the printer if it is open.
• Check the lower IN tray to make sure it contains
paper and that the paper is correctly loaded in the
tray.
• Press Resume to clear the error condition. Then
check your computer screen for any reported
error message and corrective action instructions.
Flashing and turned off No action required. This indicates that either the
computer is sending a document to the printer or
that the printer is currently busy printing.
Flashing and flashing Press Power to turn off the printer. At the computer,
cancel any documents awaiting printing. Press
Power again to turn on the printer.
Steadily lit and steadily lit See the troubleshooting instructions in Chapter 4 of
this User’s Guide. A problem exists with the printer.