When printing, I?m getting horizontal lines across the whole of the page on all the various papers that I use, but on the photo glossy paper, it is vertical as well, the gaps between the lines are 1mm wide horizontal, and about 10mm vertical on the glossy, and on the others, some times 1mm or 3mm, no vertical lines. Have tried printing at different settings, i:e draft, normal, best. Light, medium ink, (not heavy, because it does lay it on heavy.) to no avail, it doesn?t occur on black & white printing.
O.S 98me. Printer: H.P 940c Manufacturer?s original colour cartridge, refilled twice, by local cartridge shop.
Buy a new, original cartridge - refilling HP cartridges is always a dodgy business, especially for the second time. They're designed to be used once only then thrown away, or the printhead has a tendancy to get blocked up.
The thermal technology that HP use, leaves behind minute deposits, which eventually block the nozzles.