Try this: turn the printer off
This document explains how to perform built-in internal tests on HP Deskjet 3650 printer.
The internal tests can be used to verify that the printer's internal firmware is functioning properly. The tests do not verify that the computer and printer connections are working properly.
Running a diagnostic test
NOTE:
When running the test on an HP Deskjet 3600 series printer it may be helpful to use a pen or pencil to hold down the Power button.
1. Remove the sheets of paper from the feeder.
2. Grab a flashlight and look inside for any debris.
3. If you're willing and physically able, you may also
turn the printer over. Any debris should just freely roll out from the feeder.
4. If feeder is clear, place the printer back on the
table, open the printer cover and remove the cartridges.
5. Check the cartridge area for any obstructions/debris
that could cause this error or problem.
6. If cartridge area is clear, close the cover.
7. Unplug and re-plug the printer into the power outlet
to reset it.
8. When the printer turns on, reinsert the cartridges and
load some paper. Try to print again.
ns Serif"'>6. When the printer turns on, reinsert one cartridge
first.
7. Close the printer cover and check for any errors.
8. If no error appears, reinsert the other cartridge.
Close the printer cover.
9. Replace whichever cartridge is causing the error to appear with a new cartridge.
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