Canon 6004 Error
What it means
A paper delivery error. The printer cannot feed or eject paper correctly, usually because of a jam, an obstruction, or a delivery unit that is not seated properly.
Guides that cover this kind of fault
A guide written for 6004 itself is still being checked against the manufacturer's documentation. These cover the same underlying problem and are filed under paper jams.
- Printer Says Paper Jam But There Is No Paper: Causes and FixesA false paper jam is usually caused by a tiny torn scrap of paper blocking an optical sensor, a stuck mechanical sensor flag, or dirty rollers. To fix...
- Printer Not Picking Up Paper: Causes and FixesClean the rubber pickup rollers using a lint-free cloth dampened with plain water, as paper dust buildup is the main cause of feeding failures. Avoid...
Common questions
What does the 6004 error mean on a Canon printer?
A paper delivery error. The printer cannot feed or eject paper correctly, usually because of a jam, an obstruction, or a delivery unit that is not seated properly.
Is the 6004 error serious?
Not usually. Codes at this level normally clear once the condition they describe is dealt with, and a printer that carries on working afterwards has nothing further wrong with it.
Different code or problem?
Switch off and unplug a printer before reaching inside it. If a fault involves the power supply or internal electronics, or the machine is under warranty, contact the manufacturer or a qualified technician. Full disclaimer. Brand and code names are trademarks of their owners; PrinterFixUp is independent and unaffiliated.