HP K850 Not printing magenta after a while
I have a K850 which will not print magenta after a while. The printer does not come up with any errors just a lack of magenta on the print outs.
The unit is using HP original Print Heads and Ink. I have run all the cleaning programs on the web interface several times. What happens is I change the print head and it works ok for a while then it will suddenly stop printing. Its not the print heads as I have tried more than one batch.
Anyone got any ideas this is getting expensive now at £15 a ph just for a days printing. The unit is out of warranty by the look of it according to the HP site and I am not keen to ring their 60p a minute phone line jsut yet :eek:.