HP (Hewlett-Packard) C4704A Printer User Manual


 
Troubleshooting
Solving Ink System Problems
11-33
Out of ink One or more of the four ink systems are out of ink. If the last print showed image
print quality degradation, replace the ink systems affected.
n See 11-38, Checking Ink Systems.
n Check the ink levels (see 4-9, Monitoring the Ink Level). If there is still a large
amount of ink remaining in the ink cartridges, see the message “Printhead
failure”.
Printhead align-
ment cancelled
This message occurs when the alignment routine is cancelled because of a dirty lens
cover or a problem with the media.
n See 11-35, Printhead Alignment Errors.
Printhead alignment
error
This message occurs when the printhead alignment procedure has failed, or the
printer detects a fault that stops the process from completing. Alignment is the first
procedure that prints with the printheads after installation, so some printing
problems may be reported as a Printhead Alignment Error. Most alignment errors
are due to a fault with the printheads, or problems with the media.
n See 11-35, Printhead Alignment Errors.
Printhead check
cancelled
This message occurs when a printhead check is cancelled because of a dirty lens
cover or a problem with the media.
n See Printhead Checks on page 11-37.
Printhead check
error
This message occurs when the printhead check procedure has failed, or the printer
detects a fault that stops the process from completing. Most printhead check errors
are due to a fault with the printheads, or problems with the media.
n See Printhead Checks on page 11-37.
Printhead contact
error
There is an electrical problem with one or more of the printheads.
n See the message “Printhead contact error”.
Printhead failure The ink systems have failed and should be replaced.
n See the message “Printhead failure”.
Printhead removed One or more of the printheads are not detected by the printer. Printing has been
disabled.
n See 11-38, Checking the Printheads.
Verify ink system At power-on, the printer has detected an error in one or more of the ink systems.
n See 11-38, Checking Ink Systems.