Canon Pixma MX850
The printer just go off and fails to switch on again.

Experienced technical support provide their insights in answering this question :
The printer just go off and fails to switch on again. What do I have to look for?

How to Identify and Fix Common printer Problems ?

Our sources include academic articles, blog posts, and personal essays from experienced technical support :

Check1 Press ON button. Check2 Make sure power plug is securely connected to printer, and then turn on again. Check3 Unplug printer, leave it for at least 2 minutes, and then plug it back in and turn on again.
Restart your computer – this often will recover any lost connections with wireless devices. Power off and on the printer, and even the access point or wireless router your printer connects to. Check your printer configuration – you may not be assigned to the correct port for the printer.
Unplug the printer and then reconnect the printer to reset the power module. Disconnect the power cord from the printer. Remove the battery from the printer. Unplug the power cord from the wall outlet, power strip, or surge protector.
Do a hard reset on your printer. To do this you just need to turn off your printer, unplug for a few minutes and then plug the printer again. If that still doesn`t work, try turning the printer and your computer off, and then start it back up again. Try uninstalling and then reinstalling your printer driver.
Hold the on/off button and press the stop button 5 times. Release the on/off button. The printer resets itself and restarts automatically afterwards.
Your printer may not be responding because you`re using a wrong printer driver or it`s out of date. To see if that`s the case for you, you should update your Canon printer driver. If you don`t have the time, patience or skills to update your driver manually, you can do it automatically with Driver Easy.
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.
About the difference from a hard reset

Hard resets delete all the registered files, such as the form data saved in the RAM of the printer, but soft resets do not delete them. Cancel printing from the computer. Press [ ] ( Reset). Select [Soft Reset] using [ ] and [ ], and then press [OK].

The Maintenance tab allows you to perform printer maintenance or change the settings of the printer. Performs print head cleaning. Print head cleaning removes any blockage in the print head nozzles.
The fuse protects your printer from short circuits and power overload. It is placed between the power outlet and the switch on the left side of the printer. If your machine does not start after pressing the power switch, at first you should check if the power cable is connected to a power source.
Some of the most common printer problems that most of us have experienced include paper jamming, slow printing, uneven printing, and wrong colour output. If you use your printer frequently, we know how annoying it can be to have persisting problems with the printer.
Your printer may not be responding because you`re using a wrong printer driver or it`s out of date. To see if that`s the case for you, you should update your Canon printer driver. If you don`t have the time, patience or skills to update your driver manually, you can do it automatically with Driver Easy.
Hold the on/off button and press the stop button 5 times. Release the on/off button. The printer resets itself and restarts automatically afterwards.
Press the key on the printer`s control panel. If the printer has entered Sleep Mode 2, you can release the mode when [ ] (Power) is pressed.
Hold the on/off button and press the stop button 5 times. Release the on/off button. The printer resets itself and restarts automatically afterwards.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

Printer fails to switch on
ANSWER : The printer just go off and fails to switch on again. What do I have to look for?

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Canon Pixma MX850

Difference Between Laser Printer and InkJet Printer
ANSWER : Laser uses toner which is a powder that gets melted onto the page. Inkjet uses ink that gets squirted onto the page.

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Canon Pixma MX850

PRINTER MX 320 CANON ALL IN ONE PRINTER
ANSWER : Probably a worn feed roller. You can try cleaning it with a damp rag as it might just be covered with paper dust.

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ANSWER : ITS AN EPSON L210…

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printer not working
ANSWER : Not knowing which printer model (out of over1200) it’s hard to say how to clean the print head. Without the make and model number there is no way we can offer any sound advice.

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Canon Pixma MX850

HP Laserjet printer page counter backward move
ANSWER : On all HP laserjet printers if you power them off the page count will decrease back to the nearest 10. For example, if the page reading is 123,799 and you power it off, the page count will go back to 123,790.

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Canon Pixma MX850

epson printer problems
ANSWER : My Printer Has A Internal Erro

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Canon Pixma MX850

All panel lights blinking, printer doesnt respond
ANSWER : This is very easy process, you must change a new one

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Canon Pixma MX850