Sharp FO-2550 Operation Manual page 199

4
Gently remove the sticker and transparent tape covering the copper
printhead.
5
Insert the print cartridge into the cartridge carrier. Push back on the
cartridge until it clicks into place.
Note: If the print cartridge moves loosely in the carrier, it is not locked
into place. Repeat this step.
6
Close the front cover.
Installing a Print Cartridge
Do not touch the
copper-colored area!
12-11