Canon MP760 color shifting & banding

[IanB]

Hi Stuart, I'm in Melbourne (Flemington to be exact), so if you know anyone nearby, I will check with them first.

Thanks, Ian

 

[windsup]

IanB - Did the replacement printhead work??? I have _exactly_ the same problem with a MP780.

 

[windsup]

The nozzle check pattern is almost identical to this one!

And here is a scan of the nozzle check pattern which shows the banding on the heavier colors but not the lighter cyan and magenta. Note that all colors are correctly rendered.

http://www.nifty-stuff.com/forum/uploads/5640_002.jpg

 

[windsup]

I have an almost identical nozzle check pattern...

 

[IanB]

Hi windsup,

Sorry not to have updated here before now!

I took the printer to a place in Carlton that gets quotes on Canon printer repairs for free, and they told me that my printer blew up their test printhead too! At that stage I certainly didn't think it was worth getting a new printhead. I ended up buying a secondhand MP760 on EBay, which although it appears to have had a harder life than mine (which was only used about once/week), has done OK, and I have kept my old printer in case we need some mechanical spares later.

I'd be interested to know what inks you were using when the printer gave up - I was using Printec Imaging replacement cartridges I bought on EBay, that appeared to work well but were very cheap. (Says Cartridge made in China, Ink made in USA). Obviously Canon would say it was the ink that caused the problem, but I'm skeptical if it's an electrical problem. The secondhand printer I bought came with bottles of ink to refill the cartridges, and so far no problems.

Good luck, IanB