If you have one of these …

Chances are you need one of these …


You might also need the AP 300 Quick Reference Card:

A few sample screenshots are provided here, followed by the PDF link …

Canon AP-300 Parts & Functions

Canon AP-300 Keyboard

Replacing the daisy wheel

Removing and replacing the Ribbon Cassette/Correction Tape

Removing the platen

Canon-AP300-Instruction-Guide PDF (5.2 MB)

Copyright is owned by Canon Inc. This PDF (of the scans of an instruction guide I own) is offered as a free resource.