Unknown Printer

How to Identify and Fix Common Problems ?

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

Make sure the ink tank is square in the print head, then push on the top of the cartridge until you hear a click. You should then be able to remove the cartridge.
Get a flat something to use as a pry bar. I would suggest the back of a spoon handle, or a dull table knife. Insert the pry bar between the top of the cartridge and the underside of the carriage slot. Slide it forward and then gently lift the pry bar slightly, just enough to allow the cartridge to be pulled free.
Ink cartridge lovers across the globe want to bypass HP Instant Ink (although technically bypassing HP Instant Ink is not possible, you can only cancel the program). Well, read on!
Certain printers can print with an empty cartridge, while others require that all cartridges have some ink.
Leave the ink cartridges installed when you transport the printer. Transporting the printer with the cartridges removed can damage the printer.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

Canon Pixma MX882 won't print black text
ANSWER : Yeah I’m having the same problem with my Canon MX882. I’ve refilled the pigment tank, cleaned the print head and I still get no pigment black at all. I think it has something to do with the purge unit, but I don’t see any instructions on how to clean it. If I can figure it out, I’ll let you know.

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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 MP610 won't print in black
ANSWER : Printer cleanings use wet ink to clear dried up ink. Yeah, that works real well. The best way to clean the heads is remove all the ink tanks. Next to the tanks on the right, there is a plastic release lever. Pull up on it and it will release the heads. Reach in and pull them out. Take the heads over to the sink and run hot tap water into the screen for the black and then turn it over and run it over the heads on the bottom. Repeat a few times and reinstall.

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Canon Pixma iP8720 Ink Compartment Stuck
ANSWER : Here are some solutions you can try. http://fix-your-printer.blogspot.com/2013/01/how-to-fix-error-6a81-on-canon-printers.html

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Pixma iP3000, Clogged Cyan print head?
ANSWER : I have had similar problem with an IP3600, but only since upgrading OS from WindowsXP to Windows7 a few weeks back, and only with the PG fat Black ink.

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ip3000 pixma fried with 240 volts
ANSWER : You will probably need a power supply and possibly a control board (unless it survived). There may be more than that which fried as well…without doing an electrical diagnostics it’s hard to say.

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Full Ink Tank in Canon Pixma ip4000
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Pixma MX725
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