Canon PIXMA TR4720 Print Quality Problems

Print-quality troubleshooting on the Canon PIXMA TR4720 should start with a printer-generated diagnostic/test and then branch by symptom. This printer uses inkjet technology, so troubleshooting should follow the manufacturer’s inkjet-specific maintenance procedures.

Start with the printer’s own test

1. Check the loaded paper and the Media Type/Print Quality settings before maintenance.
2. Print a nozzle check; if lines are missing, run print-head cleaning and check again.
3. Use deeper cleaning only when the normal cleaning cycle does not restore the nozzle pattern.
4. For blurred, shifted or uneven output, use the TR4700-series alignment/maintenance procedure and retest.

Use the symptom to choose the next action

If the printer-generated page is clean, stop printer maintenance and check the document, application, driver and print settings. If the defect is present on the printer-generated page, continue only with the model-specific actions above and the linked official manufacturer procedure. Retest after each action so you know which change affected the result.

When to escalate

Do not repeat cleaning or maintenance indefinitely. If the same defect remains after the manufacturer’s documented sequence, use the official support path for the next ink-supply, print-head maintenance, or service step appropriate for this model rather than improvising a procedure from another printer family.