08-18-2016 01:24 PM
Since changing the ink in my canon MG7120 printer, we've been having this issue. All other colours print fine. I have tried deep cleaning and aligning the thing several times.
Any ideas? Would a new ink cartridge maybe fix the problem or am I better to buy a new printer?
05-21-2017 03:33 PM
I hae same problem. Tried everything. The only fix I found is to print without the PGBK ink (by changing the paper type to matte photo or high-resolution paper). This sucks since I only print documents & the PGBK ink is better/clearer typically. Plus I'm sitting here with a bunch of PGBK ink that I can't use.
Any help from canon (besides take it in to be serviced). I'd do that if they paid for everything but I doubt that is the case.
Any help would be much appreciated!!!!
05-21-2017 03:49 PM
I'm so angry about this. I puchased a printerhead cleaning kit. I spent a whole day cleaning the printer head. I purchased all new ink. I wasted a ton of ink doing a bunch of nozzle checks, deep cleaning, etc.
The only thing that works is NOT using the PGBK cartridge which is SLOWWWW and WASTEFUL.
Its CRAZY that canon won't give us a new printer head for free. Heck I want them to also give me replacement ink for what I wasted trying to solve this problem that is obviously in their hardware or firmware. Ugh.
05-22-2017 06:09 AM
To get your PIXMA MG7120 printing correctly, please clean the encoder/timing strip inside of your printer.
To do this, please follow the steps outlined in the following Knowledgebase Article:
If you continue to have difficulties, please contact our support group using the following link:
08-25-2019 01:24 PM
I tried to clean the encoder/timing strip and that didn't resolve the problem. I replaced the PGBK cartridge and that didn't change anything.
Should cleaning the printer head correct the problem? I did that first and it didn't make a difference.
Need other suggestions please.