Ok I have read most of the tales of clogged PH's on this forum including Granddad's which involved a blockage in the body itself.
Firstly the problem:
Running a nozzle check all colors look uniform except the PM which shows a rectangle only half filled in; that is, the top half of the rectangle looks acceptable with the bottom half very pale. The difference between the top and bottom halves is sharply defined. Also under letter 'E' instead of a uniform color swatch I get vertical lines the color of PM with white space between those lines.
Does it show up in prints? Yes I have seen banding.
What I have already done:
Alignment check. There is zero difference in the 'E' pattern obtained regardless of setting (+7 to -3).
Replaced PM cartridge. No help.
Removed PH and soaked overnight in a 50% ammonia solution. No help.
Is this a clogged PH which requires heroic declogging attempts, a body clog, an electrical problem or what?
I am ALL ears.
Firstly the problem:
Running a nozzle check all colors look uniform except the PM which shows a rectangle only half filled in; that is, the top half of the rectangle looks acceptable with the bottom half very pale. The difference between the top and bottom halves is sharply defined. Also under letter 'E' instead of a uniform color swatch I get vertical lines the color of PM with white space between those lines.
Does it show up in prints? Yes I have seen banding.
What I have already done:
Alignment check. There is zero difference in the 'E' pattern obtained regardless of setting (+7 to -3).
Replaced PM cartridge. No help.
Removed PH and soaked overnight in a 50% ammonia solution. No help.
Is this a clogged PH which requires heroic declogging attempts, a body clog, an electrical problem or what?
I am ALL ears.