Question about Canon Pixma MX420 All-In-One Printer

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My canon mx420 is stuck on Proccesing... Please wait monentarily, for two days now

I tried turning off, unplugging, restarting, but after a min. or two, screen on machine will say processing

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Broken mechanism get a tech and replace or a paper jam

Posted on Jul 20, 2013


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Posted on Jan 02, 2017

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SOURCE: Pixma 780 Allin one " Please Wait " is on all the time

Seems it has got problem in hardware / circuit.
If its under warranty, call Pixma support.

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SOURCE: Stalls in wait mode

this is usually only 2 things if it never comes to ready it could be the hard drive memoryboards bad or missing or DC controller

Posted on Dec 17, 2008

Angel Bird
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SOURCE: error code 5100 i have turned off machine,

Hello and Welcome

Error 5100 means that the cartridge can not be detected by the printer.
Actually the printer is not actually loading the cartridge and showing you the error 5100.

To solve these follow the following steps. I hope it works

  1. Turn off printer
  2. Remove both the cartridges from the printer
  3. Use a clothe moistened with alcohol to clean the surface contact on the cartridges where the terminals inside the printers touches
  4. Return the cartridges
  5. Turn on the printer.
Error will be removed

Further assistance i am here to help

Please don't forget to click on Four thumbs which are given below if it is helpful
THANKS & Keep Using Fixya

Posted on Mar 11, 2011

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I have a Canon Printer PIXMA MX420 and was told by a Canon person that my printer was dead. Is this correct?

You know we are FIXYA dot com and not Canon?

It looks like a fairly new, so I would get a second opinion. Having said that, there is one here for sale for $70, so rather than 'dead', it may in fact be beyond economical repair.


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What is error 5100?

The 5100 error could be related to several issues. Some are easy to fix; others require the printer be serviced. First open the printer and check for foreign objects (like the packing material). This requires you to open the paper output tray and then lift the entire scanning unit and set the support. While it is open, also check that ink cartridges are correctly seated.

Check that there is no paper jams in the unit (at any point, including the rear tray). Note: torn pieces of paper and small items can be hard to see. A flashlight can help. (With the printer off and unplugged, slide the ink cartridge carrier to one side of the printer and then the other to check in the corners of the printer.) Check the automatic document feeder for paper jams as well. This requires opening the document feeder cover and the transport cover.

The final step that you can try is resetting the printer. Turn off the printer. If you are using a wired connection between the computer and the printer (or router to printer), you'll need to unplug the data cable from both pieces of hardware. Unplug the power cord from the printer and the outlet. Wait 10 minutes before reconnecting power and then the data cable.

If this doesn't help, contact Canon for service if your printer is still under warranty. If it is out of warranty, decide if it is worth having the unit serviced.

For pictures of the points to check for paper jams and how to remove them, see . Alternatively, start at the Canon Service and Support page for the MX420: and search for the 5100 error.

I hope this helps.

Cindy Wells

Apr 05, 2012 | Canon Pixma MX420 All-In-One Printer

2 Answers

I just got my new printer Canon Pixma MX420 yesterday. When I turn on the printer, the error 5100 occurs. The scree of the pritner askes me to see the manual, but I can find the solution page. I dont know...

Hello and Welcome to FixYa!

If you are facing Error 5100 then it means that the cartridge can not be detected by the printer.
Actually when the printer is not actually load the cartridge it shows error 5100

To solve this error follow the given steps:-
First of all turn off printer and remove both the cartridges from the printer, Now use a clothe moistened with alcohol to clean the surface contact on the cartridges where the terminals inside the printers touches, Return the cartridges and turn on the printer.Error will be removed.

Let me know If you have any more Confusion, questions or issue regarding your problem
I hope this solution helps you. Thank you for using FixYa!

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