Canon Pixma IX7000
I have an IX6850 and the pigment black refuses to print Print head check is fine but after a few pages it stop showing text. Purge unit is purging its like the printer is not charging the head with enough ink

How to Identify and Fix Common printer Problems ?

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If there is plenty of ink and the printer does not print, clean the Print Head then print the nozzle check pattern to ensure ink is ejected properly. If the problem is not resolved after performing Print Head Cleaning twice, carry out the Print Head Deep Cleaning.
If the ink level is sufficient, but the printer still does not print black ink, you may need to run a cleaning cycle. A cleaning cycle is a process that cleans the printer heads and removes any clogged or dried ink.
Even if you select Black/Grayscale or Grayscale in the printer software, some color ink is still being used. Epson printers contain a permanent print head that needs to be charged with all colors to work. Even when you are printing black text only, a small amount of color ink is used to keep the print head charged.
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.
This error message is usually the result of a cartridge that is not firmly seated in its designated slot. To troubleshoot the problem, begin by completely removing the cartridge from its port. Reinstall the cartridge by positioning it so that it snaps into place and is securely fastened in its slot.
The ink levels may be low and you may need to refill the ink. Visually check the ink levels. Also make sure you filled the tanks with the correct colors of ink. After you print, the colors in your printout need time to set as the ink dries.
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.
Some Canon printers use a black and tri-color cartridge and some use individual ink cartridges. Both types of cartridges deliver the same high print quality that you expect from Canon, but many consumers prefer individual ink cartridges since they offer more flexibility and a better long-term savings.
Reasons why your HP printer has ink but won`t print

This may seem obvious, but it sometimes happens: first make sure your paper tray has paper in it. Misalignment, clogged printheads, faulty data communication or insufficient ink levels can also be sources of the problem.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

changing from printing in photo black to black ink
ANSWER : You can change the black ink cartridge and choose either Matte Black or Photo Black.You will need to use the Black Ink Conversion Kit that came with your printer. The kit includes three conversion cartridges (yellow, magenta, and cyan), which are used to reduce the amount of ink consumed in the conversion. dissertation writing service

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Canon Pixma IX7000

will not print black?
ANSWER : your question is quite strange. how it is possible.

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Canon Pixma IX7000

black cartridge not printing
ANSWER : https://www.youtube.com/watch?v=thrZtvAhKm0

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Canon Pixma IX7000

Black line on printed copy
ANSWER : Have absolutely no idea what kind of machine you have so here’s the generic answer. Big copy glass, little copy glass to the left of it. Take window cleaner, put it on paper towel, clean little glass.

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Canon Pixma IX7000

C1660w black printing light
ANSWER : Have someone fixed this? I have the same problem. Please help.

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Canon Pixma IX7000

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 IX7000

PRINTER FAILS TO PRINT BLACK TEXTS/IMAGES
ANSWER : https://www.youtube.com/watch?v=f57jOGj-G5s

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Canon Pixma IX7000

Canon i560 Will not print black
ANSWER : Dang, it worked for me then wentback to normal (not working) after the test page. Oh well not bad for a 10 year old bubble jet.

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Canon Pixma IX7000