Canon MF726CDW Power issue, electrical short?

bkreitman — Sun, 23 Jun 2019 18:04:44 GMT

I have a Canon MF726CDW color laser printer that has been very reliable for a number of years.

I came back from a weekend, turned on the printer and as it begins to start up, it clicks off, and restarts. It does this between 2 and 5 times, before finally completing its startup cycle, and then it appears to operate normally. I'm afraid to turn it off, fearing it won't turn on again.

I assume there is something gone bad with one of the power transisitors or capacitors on the control board; but I can't find anything about schematics or even replacement parts for this kind of part.

Re: Canon MF726CDW Power issue, electrical short?

shadowsports — Mon, 24 Jun 2019 14:33:26 GMT

Greetings,

This issues is not something that can be easily diagnosed over the internet. Even Canon support might be challenged as its not not something anyone is there to see (except you).

If you know there is good, clean stable power going to the device, thats the first step.

Is it connected to a protected circuit? Has the printer been subjected to any power anomolies? Surge, dip, etc.

Is the power supply internal or external?

Has the FW been updated recently (bad, corrupt, partial or incomplete flash)?

Have you tried resetting the device and setting it up from scratch?

This might be the end of it's life, but there isn't a magic fix or way for us to say with certainty.

If its not under warranty, the cost of repair might be more that what the device costs to replace.

topic Canon MF726CDW Power issue, electrical short? in Office Printers

Canon MF726CDW Power issue, electrical short?

Re: Canon MF726CDW Power issue, electrical short?