HP Designjet T620 HP Designjet T620 Printer Series - Users Guide - Page 147

Printhead status messages, Missing, Test printhead separately, Reseat, Replace, Replacement incomplete

Page 147 highlights

Printhead status messages These are the possible printhead status messages: ● OK: the printhead is working normally, with no known problems ● Missing: there is no printhead present, or it is not correctly installed in the printer. ● Test printhead separately: you are recommended to test the printheads individually to find the failing printhead. Remove all the printheads and insert them alone one by one, closing the latch and the carriage cover after every insertion. The front-panel display indicates the failing one showing the reseat or replace message. ● Reseat: you are recommended to remove the printhead and then reinsert it. If that fails, clean the electrical connections, see The front-panel display recommends reseating or replacing a printhead on page 139. If that fails, replace the printhead with a new printhead, see Remove a printhead on page 88 and Insert a printhead on page 91. ● Replace: the printhead is failing. Replace the printhead with a working printhead, see Remove a printhead on page 88 and Insert a printhead on page 91. ● Replacement incomplete: a printhead replacement process has not completed successfully, relaunch the replacement process and let it finish completely (it is not needed to change the printheads). ● Remove: the printhead is not a suitable type for use in printing. Ink system issues 144 Chapter 14 Troubleshooting ink cartridge and printhead issues ENWW

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Printhead status messages
These are the possible printhead status messages:
OK
: the printhead is working normally, with no known problems
Missing
: there is no printhead present, or it is not correctly installed in the printer.
Test printhead separately
: you are recommended to test the printheads individually to find the
failing printhead. Remove all the printheads and insert them alone one by one, closing the latch
and the carriage cover after every insertion. The front-panel display indicates the failing one
showing the reseat or replace message.
Reseat
: you are recommended to remove the printhead and then reinsert it. If that fails, clean the
electrical connections, see
The front-panel display recommends reseating or replacing a
printhead
on page
139
. If that fails, replace the printhead with a new printhead, see
Remove a
printhead
on page
88
and
Insert a printhead
on page
91
.
Replace
: the printhead is failing. Replace the printhead with a working printhead, see
Remove a
printhead
on page
88
and
Insert a printhead
on page
91
.
Replacement incomplete
: a printhead replacement process has not completed successfully, re-
launch the replacement process and let it finish completely (it is not needed to change the
printheads).
Remove
: the printhead is not a suitable type for use in printing.
144
Chapter 14
Troubleshooting ink cartridge and printhead issues
ENWW
Ink system issues