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#361
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Annoying printers
On Wed, 03 Oct 2018 19:39:26 +0100, Wolf K wrote:
On 2018-10-03 14:19, Jimmy Wilkinson Knife wrote: On Wed, 03 Oct 2018 16:54:01 +0100, Jonathan N. Little wrote: Jimmy Wilkinson Knife wrote: On Tue, 02 Oct 2018 20:27:53 +0100, nospam wrote: In article , Jimmy Wilkinson Knife wrote: For true grey-scale printing with an ink jet, you need at least two inks, a black and a grey. Creating grey scale has been a problemin the printing trade ever since half tones were invented. Look up duotone printing. Most inkjets don't have grey. Using colours won't help to create greys. actually, it does. multiple greys are better, but mixing cmy is an alternative. Less black makes grey. Yes, but there are different greys. In graphics there is 'black' and 'rich black'. The former is 'knockout black' where other colors are masked and only black ink is deposited, and the later is 'overprint black' where black is printed over color inks. CYMK 0,0,0,100 vs 100,100,100,100. The same goes for greys. Using color makes different shades of greys, warm greys and cool greys. Except I didn't want any of those, I asked for a non-colour image. Not possible. Read up on additive and subtractive colours, and colour perception. BTW, you know the black wax crayons you used when you were a kid? They're not actually black, as you can determine for yourself by streaking a bit of black crayon across the paper, then adding a solvent to dilute the wax. A truly black wax crayon isn't possible, because it would have to be basically solid carbon. The colour in wax crayons is dye, not pigment. A pigment "crayon" is termed a pastel crayon/stick. Just noticed, if I print from Excel, it only uses black. But if I print something similar from a photo program, it uses colours, even thought the output is identically black. Excel is therefore a lot faster to print. |
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#362
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Annoying printers
On Mon, 22 Oct 2018 17:40:19 +0100, "Jimmy Wilkinson Knife"
wrote: Just noticed, if I print from Excel, it only uses black. But if I print something similar from a photo program, it uses colours, even thought the output is identically black. Excel is therefore a lot faster to print. Excel can be set to print in a mix of colours. I use a mix of colours to print in gray. That way the ink lasts longer. Steve -- http://www.npsnn.com |
#363
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Annoying printers
On Mon, 22 Oct 2018 22:42:37 +0100, Stephen Wolstenholme wrote:
On Mon, 22 Oct 2018 17:40:19 +0100, "Jimmy Wilkinson Knife" wrote: Just noticed, if I print from Excel, it only uses black. But if I print something similar from a photo program, it uses colours, even thought the output is identically black. Excel is therefore a lot faster to print. Excel can be set to print in a mix of colours. My point was Excel manages to tell the printer to just use black, which is sensible, and the output is excellent. But photo editors won't, even when only black and white are present in the image. I use a mix of colours to print in gray. That way the ink lasts longer. But you use more numbers of inks. Why have 3 inks lasting three times as long? You use the same total volume of ink. |
#364
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Annoying printers
In article , Jim Wilkinson Knife
wrote: Just noticed, if I print from Excel, it only uses black. But if I print something similar from a photo program, it uses colours, even thought the output is identically black. Excel is therefore a lot faster to print. Excel can be set to print in a mix of colours. My point was Excel manages to tell the printer to just use black, which is sensible, and the output is excellent. except when the spreadsheets and charts use colours, in which case it's neither sensible nor desirable. But photo editors won't, even when only black and white are present in the image. as you've been told (and ignored), photo black requires cmyk, however, that can be disabled, with substandard results. |
#365
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Annoying printers
On Tue, 23 Oct 2018 01:26:39 +0100, "Jim Wilkinson Knife"
wrote: On Mon, 22 Oct 2018 22:42:37 +0100, Stephen Wolstenholme wrote: On Mon, 22 Oct 2018 17:40:19 +0100, "Jimmy Wilkinson Knife" wrote: Just noticed, if I print from Excel, it only uses black. But if I print something similar from a photo program, it uses colours, even thought the output is identically black. Excel is therefore a lot faster to print. Excel can be set to print in a mix of colours. My point was Excel manages to tell the printer to just use black, which is sensible, and the output is excellent. But photo editors won't, even when only black and white are present in the image. Adobe Paint Shop pro does everything I want to do with photos. I use a mix of colours to print in gray. That way the ink lasts longer. But you use more numbers of inks. Why have 3 inks lasting three times as long? You use the same total volume of ink. That's a 3 colour cartridge plus a black one. Black isn't used to print in gray. The Canon cartridges last for ages. Refills don't last as long as Canon. Steve -- http://www.npsnn.com |
#366
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Annoying printers
On Tue, 23 Oct 2018 01:30:48 +0100, nospam wrote:
In article , Jim Wilkinson Knife wrote: Just noticed, if I print from Excel, it only uses black. But if I print something similar from a photo program, it uses colours, even thought the output is identically black. Excel is therefore a lot faster to print. Excel can be set to print in a mix of colours. My point was Excel manages to tell the printer to just use black, which is sensible, and the output is excellent. except when the spreadsheets and charts use colours, in which case it's neither sensible nor desirable. It doesn't do that. If the text is black, it uses black, if the text is coloured, it uses colours. Yet my photo editor, with the same black text, uses colours! But photo editors won't, even when only black and white are present in the image. as you've been told (and ignored), photo black requires cmyk, however, that can be disabled, with substandard results. Clearly not as I've proved with Excel. |
#367
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Annoying printers
On Tue, 23 Oct 2018 10:14:00 +0100, Stephen Wolstenholme wrote:
On Tue, 23 Oct 2018 01:26:39 +0100, "Jim Wilkinson Knife" wrote: On Mon, 22 Oct 2018 22:42:37 +0100, Stephen Wolstenholme wrote: On Mon, 22 Oct 2018 17:40:19 +0100, "Jimmy Wilkinson Knife" wrote: Just noticed, if I print from Excel, it only uses black. But if I print something similar from a photo program, it uses colours, even thought the output is identically black. Excel is therefore a lot faster to print. Excel can be set to print in a mix of colours. My point was Excel manages to tell the printer to just use black, which is sensible, and the output is excellent. But photo editors won't, even when only black and white are present in the image. Adobe Paint Shop pro does everything I want to do with photos. No such animal. Adobe Photoshop or Corel (previously Jasc) Paintshop Pro. I use the latter. I use a mix of colours to print in gray. That way the ink lasts longer. But you use more numbers of inks. Why have 3 inks lasting three times as long? You use the same total volume of ink. That's a 3 colour cartridge plus a black one. Black isn't used to print in gray. It should be, as grey is faint black by definition. The Canon cartridges last for ages. Refills don't last as long as Canon. I find all cartridges are pathetically small (with the exception of an industrial printer we used to have at my work (an Epson something 5000 I think) - the cartridges were the size of video cassettes). The only difference being that you pay 5 times as much for genuine ones, so I don't. I don't even use fakes any more, I use a continuous ink supply system, with big tanks sat beside the printer. I virtually never have to add ink, and when I do, I just pour it in. |
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