Sharp AJ-2105 Operation Manual page 15

Remove the print heads from their protective cases.
4
Insert the print heads.
5
Insert the photo print head into the left carriage opening, and a colour print head
into the right carriage opening.
Photo print head
Be careful not to damage the print heads. If any of them is damaged, the printer
may not work properly.
Lower the print head latch.
6
Lower the latch until it clicks into the latched position.
INSTALLING THE PRINT HEADS AND INK TANKS
Do not touch the metal portion of
the print head directly. Doing so
may lead to improper printing.
Colour print head
13