Aaron, Don, Dave, can someone of you check whether the old HP color inkjets work correctly and are correctly put into the device classes? It seems that the HP DeskJet 540 (without "C", carries only one cartridge at once, either blacl or CMY) does not work correctly. Note that there exists also an HP DeskJet 540C which carries the two cartridges at once. The 540C is not listed as supported by HPLIP at all.
hpijs.drv looks correct for me in terms of the DeskJet 540. It is in a "DJ540" device class which only ofgfers CMY color modes. Can you check whther the printers in this class actually work?
There is also the 550C in the "DJ540" device class. Does this model not carry both cartridges at once?
Aaron, Don, Dave, can someone of you check whether the old HP color inkjets work correctly and are correctly put into the device classes? It seems that the HP DeskJet 540 (without "C", carries only one cartridge at once, either blacl or CMY) does not work correctly. Note that there exists also an HP DeskJet 540C which carries the two cartridges at once. The 540C is not listed as supported by HPLIP at all.
hpijs.drv looks correct for me in terms of the DeskJet 540. It is in a "DJ540" device class which only ofgfers CMY color modes. Can you check whther the printers in this class actually work?
There is also the 550C in the "DJ540" device class. Does this model not carry both cartridges at once?