Furthermore, parts for the IR 2420 (drum units, fuser films, rollers) are cheap and plentiful on eBay or AliExpress. With the service manual, you can keep this printer running for another decade. The Canon IR 2420 Service Manual PDF is an indispensable tool for anyone looking to extend the life of their printer without breaking the bank. It transforms a confusing brick of plastic and metal into a logical, repairable machine.

Open the PDF to page 7-12. You see a detailed exploded view showing how to remove the cassette, unclip the white plastic guide, and replace the separation pad (takes 3 minutes).

The manual instructs you to enter Service Mode > COPIER > FUNCTION > PART-CHK to run the pickup solenoid cycle without printing.