Question about Canon imageCLASS MF8180C All-In-One Laser Printer

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Canon Image Class MF5770 printer has message Download 7701 Connected. Will not print.

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  • planet433 Sep 20, 2008


  • mousey91 Nov 16, 2008

    error download connected 7701

  • Anonymous Feb 13, 2009

    I change the paper size to letter and the tray continue to read it legal.

    How can I get the printer to read the letter size?

  • Anonymous Mar 09, 2009



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Well. i removed the black main toner, shaked it, rolled the gear of the colours that had fingerprints, turned off the unit and start working again. well, i solved it that way, now i can fax again because i couldn' t even access any buttons, got stucked, hope it helps.

Posted on Nov 18, 2008

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Hello and Welcome to FixYa!

Sir/Ma'am kindly explain your query, Is your printer shows some error message or it just prints blank pages without any error message? Before the problem started have you replaced your Cartridge or something you did? Kindly give some detail about the problem you are facing. I will help you according to that.
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Canon Image Class MF5770 paper feed issue

2 possibilities. Your Document Feeder separation rollers need to be cleaned. You can clean them with a cloth and glass cleaner. Look for an assembly that looks like this:
Just rotate and clean the tires and see if that helps.
There is also a separation pad assembly that you might have to replace if it is worn out. It looks like this:

Both of these parts can be ordered from
I am not affiliated with them in any way. Just use them from time to time for parts such as these.
Good Luck

Dec 02, 2009 | Printers & Copiers

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I have a Canon Image Class MF5770. It had been experiencing some paper jams. I was always careful in removing the jam. I decided to cleaning the copier. I got the proper cleaning supplies at Office...

Unfortunately you have a big problem. DC controller PCB is failed. This is a very expensive part ( on this board you be able to connect you machine to your PC via USB)

Sep 21, 2009 | Printers & Copiers

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Red alarm keep coming to my (Canon imageCLASS MF5770 Multifunction Printer) and display message: CHECK PAPER SIZE AND CHANGE PAPER SIZE CASSETTEL LTR. please guid me through steps. thanks!!

Chances are the paper size in the cassette doesn't match the paper size (or alignment) that you've tried to print. Verify the paper and alignment of the paper match what you're trying to print, and that the paper guides in the cassette are locked into position for the size and alignment you're working with.

Aug 05, 2009 | Canon imageCLASS MF5770 All-In-One Laser...

1 Answer

MF5770 is not showing an error message, but isn't printing.

Paste the address below in your browser window.You should find some helpful information there.

Feb 23, 2008 | Canon imageCLASS MF5770 All-In-One Laser...

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