Canon provides several guides for this series, depending on your role (user vs. technician): Service Manual
Drum unit needs replacement or waste toner sensor is faulty. Fixing Film Error Canon Ir 2420 Service Manual Pdf
The manual instructs you to enter Service Mode > COPIER > FUNCTION > PART-CHK to run the pickup solenoid cycle without printing. Canon provides several guides for this series, depending
The Canon IR 2420 Service Manual PDF has several features that make it a valuable resource for technicians and users: Canon Ir 2420 Service Manual Pdf