On Sun, 17 Apr 2016, Michael Hennebry wrote:> On Sun, 17 Apr 2016, Michael Hennebry wrote: > >> I have an HP Photosmart C3180 All-in-one. >> As I haven't had any need for color lately, >> when I last replaced ink, I only replaced the black cartridge. >> It didn't work, even when printing grayscale-only images, >> even when telling print-set-up grayscale-only. > > To be precise: Black lines were black, > but pale gray areas were an even paler yellow. > I've just discoverd that the printer does > the right thing with text from a pdf. > The black ink cartridge is getting used, > just not enough.Much to my surprise, the color option black only grayscale does what I want when printing from a GUI. -- Michael hennebry at web.cs.ndsu.NoDak.edu "Sorry but your password must contain an uppercase letter, a number, a haiku, a gang sign, a heiroglyph, and the blood of a virgin." -- someeecards
Michael Hennebry wrote:> On Sun, 17 Apr 2016, Michael Hennebry wrote: > >> On Sun, 17 Apr 2016, Michael Hennebry wrote: >> >>> I have an HP Photosmart C3180 All-in-one. >>> As I haven't had any need for color lately, >>> when I last replaced ink, I only replaced the black cartridge. >>> It didn't work, even when printing grayscale-only images, >>> even when telling print-set-up grayscale-only. >> >> To be precise: Black lines were black, >> but pale gray areas were an even paler yellow. >> I've just discoverd that the printer does >> the right thing with text from a pdf. >> The black ink cartridge is getting used, >> just not enough. > > Much to my surprise, the color option black only grayscale > does what I want when printing from a GUI.Have you gone to the CUPS page (http://localhost:631), to the printer, and see if there's an option for grayscale only? mark
On Mon, 18 Apr 2016, m.roth at 5-cent.us wrote:> Have you gone to the CUPS page (http://localhost:631), to the printer, and > see if there's an option for grayscale only?Been there. Didn't find that. Also haven't found a way to do it with lp or lpr. -- Michael hennebry at web.cs.ndsu.NoDak.edu "Sorry but your password must contain an uppercase letter, a number, a haiku, a gang sign, a heiroglyph, and the blood of a virgin." -- someeecards