HP Deskjet 6940 User Manual
Page 103
c.
Click the Print Cartridge Information button and view the list of print cartridge
selection numbers.
The reference guide that came with the printer also shows the print cartridge
selection numbers.
4.
Check the warranty date on the print cartridge.
5.
If the print cartridge has the wrong selection number, or if the warranty date has
expired,
6.
Close the printer cover.
If the Print Cartridge Status light stops flashing, then the problem is fixed.
If the Print Cartridge Status light continues to flash, visit HP Technical Support at
.
Print cartridge problem message
If you receive a message about a problem with one of the print cartridges, follow these
steps:
1.
Raise the printer cover and remove the print cartridge that was named in the error
message.
2.
If the Print Cartridge Status light is not flashing, the problem is solved.
If the Print Cartridge Status light is flashing, go to the next step.
3.
the print cartridge.
4.
Reinsert the print cartridge in the printer and close the printer cover.
If the Print Cartridge Status light is still flashing, the print cartridge is faulty and must
be
.
Note
You can print with one print cartridge in
if you do not
have a replacement print cartridge available.
5.
If the Print Cartridge Status light continues to flash after replacing the print cartridge,
.
"Printing in ink-backup mode" message
When the printer detects that only one print cartridge is installed, ink-backup mode is
initiated. This printing mode lets you print with a single print cartridge, but it slows the
printer and affects the quality of printouts.
If you receive the ink-backup mode message and two print cartridges are installed in the
printer, verify that the plastic tape has been removed from each print cartridge. When
the protective piece of plastic tape covers the print cartridge contacts, the printer cannot
detect that the print cartridge is installed.
User's guide
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