1200 is a support code documented for Canon PIXMA TR4720, Canon PIXMA TR4722. The paper-output cover is open.
What this support code means
The paper-output cover is open.
Applies to: Canon PIXMA TR4720, Canon PIXMA TR4722. Do not reuse the same code on an unrelated model.
What to try, in order
- Close the paper-output cover and wait for the printer to resume.
After each step, repeat the action that produced the message. If it clears, you can stop.
When to stop
Stop if the instructed check does not apply, access requires disassembly, or the error persists after the documented steps.
Do not buy a part from the code alone. Check the exact model and manufacturer's part list if a replacement is actually required.
Models covered by this source
Official sources
These links identify the source and its scope. Check the manufacturer page again before changing a printer setting or buying a part.
- Canon — TR4700 series support code 1200 Checked 2026-11-01; official full page
Useful next steps
Found a mismatch? Request a correction with the public source URL and exact model, without passwords or full serial numbers.