HP Designjet 5500 (42 in.) InkJet Printer "black ink print" Questions

Black ink started to print blue/mauve Working fine then black ink started to print a faded blue colour with black printing only towards the bottom of the sheet. Ink levels and printheads ok. Tried ...

...ink (for black color) or compatible with water based ink (color printheads) during reassembly - don't forget to fill the printhead with ink (2/3 of its volume) Ridiculous anwer! do you think That ...

...black ink? I have an hp design jet 500 ps and I ran out of blank ink. I could print the document in blue ink but whenever I try to plot something it just keeps saying to replace the ink cartridge. Is ...

...black ink and the black toner. The first is near 93% black and the toner even at ***** eye looks dark gray less than 90% black. Laser Toner sits on the surface of the paper, designjet is a liquid ink ...

...black ink to be dragged on the paper when the carriage reverses direction. You can clean the printer as shown at the following (though the details will be somewhat different for the Designjet or ...

...ink sensors. Black, Cyan, and Yellow are still completely full - I can feel the weight of the ink in them, but the machine insists they're empty. Does it need a new main board, or am I ...

...ink or method to darken the image to a more solid black? You can use Paint on your computer to modify it. If not it just might be the type of printer. See if you can buy darker ink at another store. ...

black ink out (which he said should not have been in there), but this has not changed to status. Can you suggest how I can make my printer work.....any ideas? Thanks, Warren 214.769.1217 Unfortunately

...designjet 800 prints black as pale blue Trying to print a pdf as black but it is coming out in pale blue color black ink is empty..or do the printer head cleaning procedure to the printer

...Ink is not coming through the black printhead. If I wipe the black printhead on the damp paper towel and reinsert, I get black for the first and half of the second calibration pages but none on the ...