HP 1100dtn - Manual (Page 55)

ENWW 4-5
Cleaning the printhead contacts
If lines or dots are still missing from printed text or graphics after you have cleaned the
printheads, the printhead contacts might be dirty.
CAUTION HP recommends that you clean the printhead contacts only after you have cleaned the
printheads. Printhead contacts contain sensitive electronic components that can be damaged
easily.
To clean the printhead contacts
1 Turn the printer power on, and then lift the printing supplies cover.
2 Open the printhead access latch by lifting the latch from the rear. Pull the latch forward
and down to release the hook from the carriage lock.
3 Pull the latch up and back to uncover the printheads.