Canon printer not printing black text.

[daitch]

I have a 21in iMac which up until now has been printing okay to my Canon MG7500 series printer.

Now it will only print the coloured text in a document. To explain, if all of the document is black text, all that comes out is a plain white page. If i change the text in that document to any colour it will print it all out. If I then change a portion back to black, that bit is missing from the printed page.

It is as if the iMac is seeing black text as white text.

I have reinstalled the printer and updated the driver. All ink cartridges are at least half full. The printer is connected via USB.

Any ideas?

daitch

 

[chscag]

My guess is that the print head may be messed up. You can try a brand new black cartridge to make sure, but if that doesn't work then I suspect the print head. I've had a print head fail on me with a Canon printer and the advice from Canon is buy a new printer. Not worth replacing the head even if it could be replaced easily.

 

[Kenney]

Have you tried this:
Canon : PIXMA Manuals : MG7500 series : Printing the Nozzle Check Pattern

the printing the Nozzle check pattern from the Canon Manual?

 

[daitch]

Have you tried this:


the printing the Nozzle check pattern from the Canon Manual?

Thank you for that suggestion.
I had tried that recently and there were no problems. Obviously, this has recently occurred.
Had to give it a number of cleans but it seems to be okay now. Thanks to those who responded.

daitch

 

[badshoehabit]

Cleaning would have been my suggestion but I have to add that of all the printers I've owned (several Epson's, one HP), my Canon is the most temperamental. It prints fine then tells me it can't recognise an ink cartridge, refuses to pull paper through etc, etc. As it's upstairs from where I'm generally using my MBP, it's a pain having to 'check printer'!

 

[chscag]

Had to give it a number of cleans but it seems to be okay now. Thanks to those who responded.

Glad to hear you have it working. I had assumed you already tried cleaning the print heads which is why I suggested it may be a bad print head. By the way, Sue is correct about Canon printers, very tempermental.

 

[daitch]

Glad to hear you have it working. I had assumed you already tried cleaning the print heads which is why I suggested it may be a bad print head. By the way, Sue is correct about Canon printers, very tempermental.

Thing was, I had cleaned the heads before this trouble began. After the suggestion to do it, I thought what the **** I'll give it another go!

First time there was a little bit of ink where there had been none before; so I gave it a few more cleans and it improved each time.

Thank you for helping. I don't come on here very often, but when I do the help and support is fabulous! Thank you.

daitch

 

[pm-r]

Thing was, I had cleaned the heads before this trouble began. After the suggestion to do it, I thought what the **** I'll give it another go!

It's always best to do the Test Print Page first, and then the cleaning only if needed, and it's a good idea to run a test page at least once every two weeks if not more often with those printers. Especially if it is using the five or more ink cartridge system.



- Patrick
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