Color ink out. Replace color ink cartridge. Press Enter to continue.

[Marvin]

Your comments are true up to the last sentence. The Photosmart P100 (and all
the DeskJet and Photosmart products with integrated printheads) do not refuse
to work because a cartridge is empty. The printer would continue to signal
the cartridge is low on ink, but this in no way would affect printing.

- Bob Headrick, not speaking for my employer HP

My HP DEskjet 930c starts sending messages when it senses that the ink is rnning low, but it keeps on printing, though the
print quality may eventually degrade. But once the ink is all gone, it will not print.

 

[Bob Headrick]

My HP DeskJet 930c starts sending messages when it senses that the ink is
running low, but it keeps on printing, though the print quality may
eventually degrade. But once the ink is all gone, it will not print.

It will continue to go through the motions of printing, it is just that there
will be no printing because there is no ink. The printer does not stop trying
to print just because it thinks the ink is low. The Low On Ink indicator is a
message for the user only, to alert them that the cartridge is running low and
a replacement should be on hand.

Regards,
Bob Headrick