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Nathan, Engineer
Category: Printers
Satisfied Customers: 22054
Experience:  Computer networking/repair. 12+ years experience.
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My 726 printer will not print and all the ink lights come on

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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

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.

Hello Jenny,

Is this a Canon MF726CDW?

Customer: replied 3 months ago.
Not sure, it just has 726 on the front

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

Customer: replied 3 months ago.
No thanks, ***** ***** answer now as I am about to go out

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 3 months ago.
It is a large printer/fax/copier
Customer: replied 3 months ago.
Sorry, need to leave, thought this was easier than it appears to be

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,


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.


Customer: replied 2 months ago.
Hi Nathan, I have not been able to get the printer to work, so will need to buy a new one, thanks for the information. Regards Jenny

You're welcome, Jenny.

If looking for a replacement, I’d recommend any of the Epson workforce series printers. They tend to be very reliable, are easy to set up and use, have good print quality, and reasonably priced ink. Example: or

Note that these, like all consumer grade inkjet printers, are designed to be low cost and are essentially disposable after a few years, subsidized by the high cost of ink cartridges. If you wish to have a better quality and longer lasting printer, that comes with years worth of ink up front, consider the Epson ecotank models instead:

Alternately, for a more business/commercial grade product that will be rated for a 5 year life, consider a laser printer. Lasers cost more up front also, but a toner cartridge can last for thousands of pages. A black only all in one laser is around $125:

while a color model is about twice that:

If you have any other questions, just let me know. Otherwise, please take a moment to rate my service as this is the only way I am credited for my time. Hopefully I have earned 5 Stars but if not please let me know what I can do to ensure you are satisfied. I also invite you to contact me directly with any future support needs at and ask for Nathan.

Thank you, ***** ***** a nice day,


Customer: replied 2 months ago.
Also, I thought that the fee was payable on a successful outcome, I have not authorised any other payment, Can you tell me what fee I have paid please.

No, it is a fixed fee which was paid in advance. I can't see the exact amount (we're all independent techs here so I can't see account info), but if you look on the Account link at the top of the page after we're done here, you'll see account history and it should show there.

For comparison purposes, if you had a tech out or took it to a shop, you'd be paying a $100+ diagnostic fee for the exact same answer.

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