Canon error codes, explained
imageRUNNER / imageRUNNER ADVANCE copiers and imageCLASS printers. Codes below: E-codes (E000–E8xx). Each guide covers what the code means, what you can safely try yourself, when to stop and call a technician, and what the repair typically costs.
Canon E000 — Fuser temperature failure (no warm-up)
The fixing (fuser) unit did not reach its target temperature during startup. The machine locks itself out to prevent fire risk, and on most imageRUNNER models this error latches until it is cleared in service mode.
Canon E001 — Fuser overheating detected
The fixing unit temperature rose above its safe limit. This is a protective shutdown — the usual causes are a failing thermistor giving bad readings or a fault in the heater control circuit.
Canon E002 — Fuser did not reach standby temperature in time
The fuser began heating but rose too slowly, so the machine aborted warm-up. Common causes are a degraded fuser film/heater or low line voltage to the machine.
Canon E003 — Fuser temperature dropped after warm-up
The fuser reached operating temperature but then fell below the minimum threshold while running, pointing at a heater, thermistor, or power-supply fault.
Canon E007 — Fuser film/fixing rotation error
The machine detected that the fuser film or fixing assembly is not rotating correctly — often a worn fuser film unit or a drive problem.
Canon E010 — Main motor failure
The main drive motor did not reach speed or stalled. Can be caused by a jammed drive train, a failing motor, or an obstruction in the drum/developer drive path.
Canon E100 — Laser/BD (beam detect) error
The laser scanner unit failed its beam-detect check, so the machine can't form images safely. Usually the polygon motor or laser unit.
Canon E202 — Scanner home position error
The scanner carriage could not find its home position — the optical unit is stuck, the position sensor failed, or the drive belt slipped.
Canon E225 — Scanner lamp light-amount error
The scanner's exposure lamp is producing too little light — typically an aging lamp/LED array or a dirty optical path.
Canon E602 — Hard disk / storage error
The machine's internal storage (HDD or SSD) failed a read/write check. Job storage, mailboxes, and sometimes booting are affected.
Canon E733 — Controller communication error family (E730s)
The main controller failed to communicate with a subsystem (printer controller, network module, or finisher). E730–E739 codes are a family with the same general cause pattern: connection, board, or firmware faults.
Canon E805 — Exhaust fan error
A cooling/exhaust fan is not spinning at the expected speed. The machine shuts down to avoid heat damage. Often dust buildup or a failing fan motor.