Canon Fax 780

How to Identify and Fix Common Problems ?

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If ink is not coming out when you perform printing for the first time, it is possible that ink is not flowing into the printer properly. Make sure each ink tank is filled with ink to its upper limit and perform ink flush. If the problem is not resolved yet, the print head may be damaged.
If the nozzle check pattern shows adequate ink, but the printer doesn`t print color, clean the printhead. After that, print a nozzle check pattern. After performing printhead cleaning, perform a printhead deep cleaning. If still, the problem persists, switch off your printer and do the deep cleaning after a day.
Check if the ink tank for the problem color is empty. If the ink tank is not empty, perform print head cleaning and try printing the nozzle check pattern again. If problem is not resolved after performing print head cleaning twice: Perform print head deep cleaning.
If your PC or the LCD screen on your printer is telling you that your ink cartridges are full but no ink is passing through to the paper, then it`s most likely that you are dealing with a clogged printhead. Blurry documents and images that appear faded are also signs that it`s time to remove the excess ink.
Several factors may cause the product to print blank pages, such as print settings, low ink, or the product itself. Check the following: Make sure the product is placed on a flat, stable surface that extends beyond the base in all directions. The product won`t operate properly if it`s tilted or at an angle.
Appropriate paper is not being used. The toner cartridges have reached the end of their life. Check the toner cartridges status and replace the toner cartridges of the colors have reached the end of their life.
When color ink is expended and black ink still remains, you can continue printing for a short time using only black ink. However, you should replace the expended ink cartridge(s) as soon as possible.
Why does the machine have two black ink tanks? There are two kinds of black ink in the machine: dye ink (BK) and pigment ink (PGBK). The dye ink is used mainly for printing photos, illustration, etc., and the pigment ink is used for text-based documents.
A low ink/toner density setting

Your default setting could be set to low, causing you to get those faint prints. If your printer does have ink/toner density settings, you should be able to find them once you`ve clicked on your printer in `Devices & Printers.

Even if your cartridge is full and ready for action, it may have become slightly dislodged and no longer in full electrical contact with the printer. The easiest way to rectify this potential problem is to simply remove and reinstall the cartridges.
Test Your Toner Density First

To ensure this isn`t the issue, remove the toner cartridge, shake it a few times, and insert it back into the printer. If the next page you print is darker, that means that your printer is low on toner density. Next, try replacing a light printing toner cartridge with a fresh one.

Several factors may cause the product to print blank pages, such as print settings, low ink, or the product itself. Check the following: Make sure the product is placed on a flat, stable surface that extends beyond the base in all directions. The product won`t operate properly if it`s tilted or at an angle.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

Canon MP610 stopped printing black
ANSWER : I was also facing same issue with my printer. I tried a lot to fix that however I was not able to fix that. I got this link http://www.printer-techsupport.com/Canon-printer-support.htmlover the internet. I just visited and made a call on their toll free and got instant help for my printer.

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Canon Fax 780

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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Canon Fax 780

My printer feeds through one piece of paper all the way and then a half piece of paper and stops. I pull out the paper to stop the paper jam and then it prints but sounds rough. After printing, it doesn't feed the paper all the way through.
ANSWER : And the first 2 sheets, the full and half sheet that go through first, are blank.

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Canon Fax 780

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 Fax 780

Stopped printing black
ANSWER : If the black is on the test print, then it’s highly doubtful it is a printer problem. The printer just prints what it is told to. I’m thinking it’s most likely a computer or software issue.

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Canon Fax 780

canon mp610 doesn't print black
ANSWER : Hello – I have an MP610 which has worked well for a number of years.

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Canon Fax 780

Canon MP600 uses color ink to print black and white…
ANSWER : Have you tried setting the print out to grayscale only (black and white)?

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Canon Fax 780

Print problem with Canon MP620
ANSWER : Open the front of the printer.

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Canon Fax 780