HP Officejet J5740 All-in-One Printer - Manual (Page 252)

Solution: If the HP All-in-One is not properly connected to the computer,
communication errors can occur. Make sure the USB cable is securely connected to
the HP All-in-One and the computer, as shown below.
Print cartridge messages
The following is a list of print cartridge error messages:
• Low on ink
• Need alignment or alignment failed
• Print cartridge is missing, incorrectly installed, or not intended for your device
Low on ink
Cause: One or both print cartridges might be out of ink.
Solution: Check the estimated ink levels remaining in the print cartridges. If the
print cartridges are low or out of ink, you might need to replace the print cartridges.
NOTE: The HP All-in-One can only detect the ink levels for genuine HP ink. The
ink levels in print cartridges that are refilled or have been used in other devices,
might not register accurately.
If there is ink remaining in the print cartridges, but you are still noticing a problem,
print a self-test report to determine if there is a problem with the print cartridges. If the
self-test report shows a problem, clean the print cartridges. If the problem persists,
you might need to replace the print cartridges.
NOTE: Do not remove the old print cartridge until a new one is available.
For more information on print cartridges, see Print cartridge troubleshooting .
Chapter 12
250 Troubleshooting