Canon MG3650s prints zig-zag vertical lines !!

4jbl7

I have an MG 3650s canon printer and it has started to print vertical lines that are sort of zig-zag. I have done both the automatic (no change) and manual head alignment, a little better but not perfect yet . I have done this four times now.The slight offset of print is enough for the Post Office to fail to read the QR/Bar Codes it prints out. Do I need to keep doing a manual alignment until all is ok or is there something else to try ?
I have done a nozzle clean and the test page is fine.
Any suggestions appreciated.
Thanks. Brian.

Myser

Have you seen this thread?

https://www.printerknowledge.com/threads/issue-with-head-alignment-on-canon-mg-3650.12747/

4jbl7

Thanks but Yes. I have cleaned the strip twice although it did not look dirty. No change. unfortunately.
I have attached a picture of the problem.

bob_a_builder

Some printers used to have a 'print unidirectionally' setting to address that type of issue, no idea if your does ?
I know that would be just masking the issue and would be a bit slower 
but if it got the prints you need 

interstellaflyer

Ever considered the the black cartridge being faulty?

4jbl7

interstellaflyer said:

Ever considered the the black cartridge being faulty?

Yes, I'm beginning to think that this might have something to do with it. The black one in the printer is a Canon one but I do refill it with ink  (needle and syringe). I am going to get another Canon original black and see if that makes a difference.
Thanks
Brian.

interstellaflyer

4jbl7 said:

interstellaflyer said:

Ever considered the the black cartridge being faulty?

Yes, I'm beginning to think that this might have something to do with it. The black one in the printer is a Canon one but I do refill it with ink  (needle and syringe). I am going to get another Canon original black and see if that makes a difference.
Thanks
Brian.

That's probably the cause then, the print head is in the printer cartridge on those machines and as they are technically single use  the print head will deteriorate over time.