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Groups > comp.sys.acorn.misc > #4543
| From | Tim Hill <tim@invalid.org.uk> |
|---|---|
| Newsgroups | comp.sys.acorn.misc |
| Subject | Re: Printer |
| Date | 2012-03-22 20:34 +0000 |
| Organization | timil.com |
| Message-ID | <52749c705atim@invalid.org.uk> (permalink) |
| References | (7 earlier) <9s13ueF8i8U1@mid.individual.net> <3960576e52.dougjwebb@doug.j.webb.btinternet.com> <mpro.m0ohr10hdtd3k01ix.news@stevefryatt.org.uk> <0d28.m0ohr10hdtd3k01ix.news@stevefryatt.org.uk> <ant221749313pErr@client.cjemicros.co.uk> |
In article <ant221749313pErr@client.cjemicros.co.uk>, Chris Evans <chris@cjemicros.co.uk> wrote: > I'm just intrigued, Me too. > if we can work out why is it happening other people > may be able to take advantage of the toner saving. I have just installed the LasJet-III driver and printed to the HP Color LaserJet 2550LN at 75x75 and 150x150 dpi and as well as there being less detail in the 75 print, at lower resolutions the greys are represented by a few big white holes in black, whereas at higher res., there are more but smaller white holes in black. Squinting at the prints from across the room, the greys look to be the same shade to me and I think the total amount of white in each case is the same. However, as these '75' white holes resolve more easily to the eye, it may /appear/ there is less toner on the page but black areas are black and there's just as much of it in each. Just spread around differently. see: http://timil.com/temp/printing.jpg and: http://timil.com/temp/printingx50.gif (Any apparent difference in the black in the image is due to the paper fibres and reflected light.) I have also weighed the paper: Blank : 4.6g 75 dpi : 4.8g 150 dpi: 4.7g 300 dpi: 4.7g That may just show my scales are innacurate or paper isn't constant but not perhaps that 300 dpi uses shed loads more toner than 75 dpi! Same amount of toner: spread around differently. There is software 'out there' which does to printed documents what jpeg does to images: it throws away bits you don't notice (even bits of fonts). I've googled but can't find it at the mo. -- Tim Hill of timil.com . . . * supports TFT & shares in cheaper ethical telecoms http://tjrh.eu/phone * has a genuine & spam-proof address for Usenet http://www.invalid.org.uk/ * accepts incoming email: substitute postmaster@ for tim@ ... "Some innocents 'scape not the thunderbolt" Ant & Cleo, Act ii, Sc.5
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Printer Dave Symes <dave@triffid.co.uk> - 2012-03-18 12:34 +0000
Re: Printer Chris Johnson <chrisjohnson+news@spamcop.net> - 2012-03-18 13:16 +0000
Re: Printer Dave Symes <dave@triffid.co.uk> - 2012-03-18 16:11 +0000
Re: Printer Chris Johnson <chrisjohnson+news@spamcop.net> - 2012-03-18 17:26 +0000
Re: Printer Dave Symes <dave@triffid.co.uk> - 2012-03-18 19:06 +0000
Re: Printer Chris Johnson <chrisjohnson+news@spamcop.net> - 2012-03-18 20:45 +0000
Re: Printer Tim Hill <tim@invalid.org.uk> - 2012-03-18 21:39 +0000
Re: Printer Dave Symes <dave@triffid.co.uk> - 2012-03-19 06:21 +0000
Re: Printer Rick Murray <heyrickmail-usenet@yahoo.co.uk> - 2012-03-19 14:23 +0100
Re: Printer Russell Hafter News <see.sig@walkingingermany.invalid> - 2012-03-19 14:15 +0000
Re: Printer Rick Murray <heyrickmail-usenet@yahoo.co.uk> - 2012-03-19 18:53 +0100
Re: Printer Tim Hill <tim@invalid.org.uk> - 2012-03-22 14:12 +0000
Re: Printer Tim Hill <tim@invalid.org.uk> - 2012-03-22 14:08 +0000
Re: Printer Chris Evans <chris@cjemicros.co.uk> - 2012-03-19 10:39 +0000
Re: Printer Dave Symes <dave@triffid.co.uk> - 2012-03-19 05:47 +0000
Re: Printer Dave Higton <davehigton@dsl.pipex.com> - 2012-03-18 21:51 +0000
Re: Printer Dave Symes <dave@triffid.co.uk> - 2012-03-19 05:42 +0000
Re: Printer Alan Calder <alan_calder@o2.co.uk> - 2012-03-19 12:58 +0000
Re: Printer Dave Symes <dave@triffid.co.uk> - 2012-03-19 19:21 +0000
Re: Printer Alan Calder <alan_calder@o2.co.uk> - 2012-03-19 19:47 +0000
Re: Printer Chris Johnson <chrisjohnson+news@spamcop.net> - 2012-03-19 20:46 +0000
Re: Printer Russell Hafter News <see.sig@walkingingermany.invalid> - 2012-03-19 22:31 +0000
Re: Printer Alan Calder <alan_calder@o2.co.uk> - 2012-03-20 11:32 +0000
Re: Printer Chris Evans <chris@cjemicros.co.uk> - 2012-03-20 13:26 +0000
Re: Printer Martin Wuerthner <spamtrap@mw-software.com> - 2012-03-20 16:20 +0100
Re: Printer Russell Hafter News <see.sig@walkingingermany.invalid> - 2012-03-20 16:05 +0000
Printer Russell Hafter News <see.sig@walkingingermany.invalid> - 2012-03-20 16:07 +0000
Re: Printer Chris Evans <chris@cjemicros.co.uk> - 2012-03-20 17:29 +0000
Re: Printer M Harding <riscos@mdharding.org.uk> - 2012-03-19 20:17 +0000
Re: Printer Dave Symes <dave@triffid.co.uk> - 2012-03-19 20:42 +0000
Re: Printer M Harding <riscos@mdharding.org.uk> - 2012-03-19 21:37 +0000
Re: Printer Dave Symes <dave@triffid.co.uk> - 2012-03-20 07:08 +0000
Re: Printer M Harding <riscos@mdharding.org.uk> - 2012-03-20 10:39 +0000
Re: Printer Chris Evans <chris@cjemicros.co.uk> - 2012-03-20 13:14 +0000
Re: Printer Dave Symes <dave@triffid.co.uk> - 2012-03-20 19:07 +0000
Re: Printer Chris Evans <chris@cjemicros.co.uk> - 2012-03-21 10:38 +0000
Re: Printer Dave Symes <dave@triffid.co.uk> - 2012-03-21 19:40 +0000
Re: Printer Dave Higton <davehigton@dsl.pipex.com> - 2012-03-21 22:29 +0000
Re: Printer Chris Evans <chris@cjemicros.co.uk> - 2012-03-22 17:13 +0000
Re: Printer Dave Symes <dave@triffid.co.uk> - 2012-03-22 19:01 +0000
Re: Printer Dave Symes <dave@triffid.co.uk> - 2012-03-23 07:33 +0000
Re: Printer Tim Hill <tim@invalid.org.uk> - 2012-03-22 20:34 +0000
Re: Printer Martin Wuerthner <spamtrap@mw-software.com> - 2012-03-23 12:05 +0100
Re: Printer Martin Wuerthner <spamtrap@mw-software.com> - 2012-03-23 12:08 +0100
Re: Printer Bob Latham <bob@sick-of-spam.invalid> - 2012-03-23 11:39 +0000
Re: Printer John Tytgat <this@is.invalid> - 2012-03-20 01:10 +0100
Re: Printer Chris Johnson <chrisjohnson+news@spamcop.net> - 2012-03-20 11:05 +0000
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