11-11-2018 07:09 AM
Officejet 6950, new, original HP cartridges installed, after colour cartridges supplied by purchase of printer were empty. The black cartridge seems to be functioning normally, but colour prints are no longer possible. Even the test page only prints black. The printer itself and the HP support programme on the computer indicate the cartridges are functioning and fully operational (and full). How to print colour??
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