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Nathan, Engineer
Category: Printers
Satisfied Customers: 20541
Experience:  Computer networking/repair. 12+ years experience.
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My 726 printer will not print and all the ink lights come on

Customer Question

My 726 printer will not print and all the ink lights come on together. Have tried a new ink cartridge but still has light come on. Have turned the printer off, and on again, but no change. Please Help !!! Thank you, Jenny
Submitted: 18 days ago.
Category: Printers
Expert:  Nathan replied 18 days ago.

Hi, I'm Nathan.
Sorry to hear that you're having trouble, but I'll do my best to help you. Please give me a few moments to review your details here.

Expert:  Nathan replied 18 days ago.

Hello Jenny,

Is this a Canon MF726CDW?

Customer: replied 18 days ago.
Not sure, it just has 726 on the front
Expert:  Nathan replied 18 days ago.

Is it a big color laser printer, recent model (in the past year or two)?

Customer: replied 18 days ago.
No thanks, ***** ***** answer now as I am about to go out
Expert:  Nathan replied 18 days ago.

You are seeing an automated ad by the site for a call or remote session, this is optional and may be ignored if you wish. I can help you here but I really need the complete model or confirmation of that to answer you.

Customer: replied 18 days ago.
It is a large printer/fax/copier
Customer: replied 18 days ago.
Sorry, need to leave, thought this was easier than it appears to be
Expert:  Nathan replied 18 days ago.

Unfortunately, the issues you are experiencing are symptomatic of an internal hardware defect, meaning a faulty power supply or logic board. This issue could be a manufacturing defect, but is also often caused by a power event (shock/surge, prolonged over/under voltage condition, etc).

There is one step you can take here, both as a possible fix, as well as a diagnostic evaluation

unplug power at the wall outlet
wait 5 minutes
press and hold the power/on button for 60+ seconds
keep holding while plugging back in, and for another 60 seconds after, then release

If this reset process does not work, it would unfortunately confirm an internal hardware failure.

This is something that would require repairs to correct; at that point it is time for a new printer. While it can be fixed, it is not practical to do so. You'd be in the $150 range to have the internal power supply replaced, and a logic board would run you $200-250. For about the same price you can replace the entire machine with a brand new model, with current technology and a fresh warranty, which makes more sense than buying the new part for an older printer. Of course if it was purchased less than a year ago, then it is under warranty and you can file a claim with canon for replacement.

Depending how you'd like to proceed, I can help with finding parts, finding a local repair shop, or recommending replacement options for you. Just let me know.

Best regards, ***** ***** for the news,


Expert:  Nathan replied 13 days ago.

Hello, it appears your question is still open.

Do you need more help with this?
If so, just reply back on this page. If I’ve answered your question, please let me know you are satisfied, to conclude our session.

Please note: You have already paid your fee to the site; I'd like to help you and provide value for that fee, but I do need to communicate with you here to do so.