HP SmTank 5101 All-In-One Wireless Thermal Inkjet Color Printer - Manual (Page 73)

d. Insert the printhead into the slot until it clicks into place.
e. Close the printhead cover.
Make sure it is properly closed to avoid problems such as carriage jams.
4. Close the front door.
Clean printhead contacts
Take note of the following before you begin.
NOTE:
● Open the printhead cover and clean printhead contacts only when necessary; for example, if a printhead
cannot be detected.
The instructions here are only applicable in this section. After you have set up the printer, do not open
the printhead cover unless instructed.
Clean printhead contacts 67