Canon Pixma MX700
I get the error code uo51, print head not installed, whats up?

How to Identify and Fix Common printer Problems ?

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If there is a problem with the printhead, the tips below will work for most brands, but it`s important to check first.
  • Air Blockages in the Nozzles. …
  • Dried Ink Buildup on the Printhead. …
  • Dust Buildup Inside the Printer. …
  • The Printer Is Always On. …
  • Your Printer Gets Low Use.
19 août 2020
If the printer has been printing continuously for a long time, the Print Head Holder may not move to the center since the Print Head may overheat. Opening the Top Cover while printing moves the Print Head Holder to the right. Close the Top Cover, and reopen it after printing finishes.
Print head stepper motor – A stepper motor moves the print head assembly (print head and ink cartridges) back and forth across the paper. Some printers have another stepper motor to park the print head assembly when the printer is not in use.
Print head cleaning consumes some ink. To avoid wasting ink, clean the print head only if print quality declines; for example, if the printout is blurry or the color is incorrect or missing.
With the printer powered on, select Setup . Select Device settings . Scroll to the bottom of the menu list and select Reset settings. In the Reset settings menu, select the desired area you want to set back to the factory defaults.
In Windows, go to Printer Properties > Maintenance > Clean Heads > OK and follow on-screen prompts.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

canon i320 – print head not installed
ANSWER : I had this problem and fixed it this way. When you remove the cartridges there is a line of black soft felt below them. On it I found a moth and once I removed the moth

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Canon Pixma MX700

Removing the print head on a Pixma MX 475?
ANSWER : Take out the ink tanks. On the right side there is a plastic release lever. Lift it up and the heads will unlock. Reach in and remove the heads. Take it to the sink and run hot water through the screens on top and then flip it over and run hot water over the heads. Repeat a few times until the water is clear. Reinstall and try again. It might take a couple pages for the print to look good.

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Canon Pixma MX700

print heads
ANSWER : Try this: http://support.hp.com/us-en/document/c04293162

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Canon Pixma MX700

Paper jam in front of print head. HELP URGENT Please
ANSWER : I am 99% sure you don’t have a problem with a sensor. Having no idea what you do in the cleaning process, and not being able to look at the printer, there is no way to help or advise you.

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Canon Pixma MX700

can't align print head horizontally despite running program
ANSWER : Don’t call that number, it’s a phishing scam number as far as I can tell. Last thing you want to do is have them remote into your computer (they may try hacking you in the background to try & steal bank info/saved passwords) or give them a CC number for tech help since they are not directly affiliated with Epson. As far as Epson’s site shows there is no toll free tech line, only 2 800s listed on their site and 1 is presales other is for supply orders.

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Canon Pixma MX700

Epson Artisan 835 print head cleaning question
ANSWER : I had the same problem. After reading the comments, I tried Liquid Wrench spray. 1st try got about sixty percent improvement. Tried again this time I let it set for about 10 min then did a head cleaning. Completely solved the problem. I am a little concerned about its use on plastic. So far so good.

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Canon Pixma MX700

when printing front and back, the front will print well but the back will fade
ANSWER : It happens because second side voltage is much higher and the board breaks. Are you getting this issue in auto duplex only, or same error you are getting when you print second side manually?

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Canon Pixma MX700

Need help for Epson Stylus color 3000 print head?
ANSWER : I need help changing the print head in my Epson 3000 – I have 2 printers – one will not stay in alignment and the other black ink is plugged and I have soaked it and cannot get it to budge.

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Canon Pixma MX700