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Ask Russell H. Your Own Question
Russell H.
Russell H., Printer and Office Tech
Category: Printers
Satisfied Customers: 11209
Experience:  11+ yrs experience, inkjets & lasers, from huge to portable
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I have a Canon ImageCLASS MF4150 that has just STOPPED

Customer Question

I have a Canon ImageCLASS MF4150 that has just STOPPED recognizing that the cartridge IS installed in the unit. Is it repairable?
Bob Little
Submitted: 2 years ago.
Category: Printers
Expert:  Russell H. replied 2 years ago.

Hi, thank you for contacting My name is Russell. I will do my best to provide the right answer to your question.

The right thing to do in such a case, is to first determine whether it is the cartridge, or the printer, which is the problem.

There is no 'recognize switch', so I advise against further disassembly of the printer in trying to find it. Electronic circuitry in the printer and in the cartridge are supposed to interface with each other, and signal properly to each other in recognition (more or less, as a loose description.) That recognition is not taking place, and the fault could be on either side of the interfacing of cartridge and printer.

Try a different cartridge, following instructions scrupulously as to detail. If that too remains 'unrecognized', then your printer is defective somehow (and, yes, cleaning of the contacts might help if the contacts are dirtied, e.g. if you touched them on the cartridge, the cartridge may be ruined...)

Expert:  Russell H. replied 2 years ago.

Let me know how it goes, and what you think, and what else you need to know. (As to repairability, the printer's age is a factor.)