Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > comp.sys.acorn.misc > #4377 > unrolled thread

Printer

Started byDave Symes <dave@triffid.co.uk>
First post2012-03-18 12:34 +0000
Last post2012-03-20 11:05 +0000
Articles 7 on this page of 47 — 12 participants

Back to article view | Back to comp.sys.acorn.misc

Contents

  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

Page 3 of 3 — ← Prev page 1 2 [3]

#4552

FromDave Symes <dave@triffid.co.uk>
Date2012-03-23 07:33 +0000
Message-ID<5274d8b944dave@triffid.co.uk>
In reply to#4541
After the initial advice etc a while back, I got kinda sidetracked by
other stuff here.

As SWMBO now has the printing exactly where SHE wants it, and in case I
didn't get around to it before...

Thanks to the folks who gave good advice early on, partcularly DH about
Jet Direct.

Thanks
Dave

-- 

Dave Triffid

[toc] | [prev] | [next] | [standalone]

#4543

FromTim Hill <tim@invalid.org.uk>
Date2012-03-22 20:34 +0000
Message-ID<52749c705atim@invalid.org.uk>
In reply to#4536
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

[toc] | [prev] | [next] | [standalone]

#4561

FromMartin Wuerthner <spamtrap@mw-software.com>
Date2012-03-23 12:05 +0100
Message-ID<8830ec7452.martin@bach.planiverse.com>
In reply to#4543
In message <52749c705atim@invalid.org.uk>
          Tim Hill <tim@invalid.org.uk> wrote:

> 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.

There are: PretonSaver, InkSaver, EcoFont, EcoPrint.

http://www.preton.com/ink-save-options.asp has an interesting overview
over vendor-specific ink/toner saving options (EconoMode).

It claims that reducing resolution from 600dpi to 300dpi can save
between 5% and 10% of toner at the expense of a lighter printout. That
seems to confirm what Dave reported.

-- 
Martin
---------------------------------------------------------------------
Martin Wuerthner         MW Software      http://www.mw-software.com/
        RISC OS Software for Design, Printing and Publishing
---------------------------------------------------------------------

[toc] | [prev] | [next] | [standalone]

#4560

FromMartin Wuerthner <spamtrap@mw-software.com>
Date2012-03-23 12:08 +0100
Message-ID<f96dec7452.martin@bach.planiverse.com>
In reply to#4536
In message <ant221749313pErr@client.cjemicros.co.uk>
          Chris Evans <chris@cjemicros.co.uk> wrote:

> In article <527413a10bdave@triffid.co.uk>, Dave Symes
> <URL:mailto:dave@triffid.co.uk> wrote:

>> Why shouldn't changing resolution change the amount of Toner/Ink being
>> used.
>> 
>> It's obvious and logical, less resolution= less density= less toner/ink.

> I see what you mean but AIUI HP PCL printing (which is what all HP Laserjet
> drivers use) uses vector formats for the outlines of everything inc. text
> and 'fills' between the outlines, like !Draw.
> Say you are displaying a filled circle changing the screen resolution will
> change how smooth the edge's appear but the centre will always be a solid
> black. Text is the same on 'O' is effectively a filled circe with another
> smaller filled in white circle.

> I'm sure Martin can explain it better than me, and may now why you are
> getting the effect you are.

>> It's even obvious when using the Epson Photo Inkjet.

> With Inkjet that is more expected as that does things slightly differently.

No, that is not correct. HP PCL printing from RISC OS and Inkjet 
printing both use the same method: The RISC OS printer driver fully 
rasterises the page and sends a raster image to the printer.

The RISC OS driver does not use any of the vector facilities of PCL, 
it treats it as a dumb raster printer, just like an inkjet.

-- 
Martin
---------------------------------------------------------------------
Martin Wuerthner         MW Software      http://www.mw-software.com/
        RISC OS Software for Design, Printing and Publishing
---------------------------------------------------------------------

[toc] | [prev] | [next] | [standalone]

#4566

FromBob Latham <bob@sick-of-spam.invalid>
Date2012-03-23 11:39 +0000
Message-ID<5274ef4c33bob@sick-of-spam.invalid>
In reply to#4560
In article <f96dec7452.martin@bach.planiverse.com>,
   Martin Wuerthner <spamtrap@mw-software.com> wrote:

> The RISC OS printer driver fully rasterises

Is that why the printers are always jamming,    jamming hope you like.....

Sorry, I'll get me coat.


Bob.

[toc] | [prev] | [next] | [standalone]

#4457

FromJohn Tytgat <this@is.invalid>
Date2012-03-20 01:10 +0100
Message-ID<jk8hu0$27h$1@dont-email.me>
In reply to#4378
On 3/18/2012 2:16 PM, Chris Johnson wrote:
> In article<5272611ca3dave@triffid.co.uk>,
>     Dave Symes<dave@triffid.co.uk>  wrote:
>> Unfortunately. Shift + Select click, PostScript Configuration
>> window doesn't have any option to control the resolution, so it
>> prints at max res all the time (Very wasty on toner).
>
> ... but postscript has no real conception of 'resolution' - it's all
> controlled by the printer.

Sorry, this is not true.  The PostScript language has a fundamental 
concept of coordinate system mapping sizes (in points) to final device 
pixels.  It is perfectly possible to derive the device resolution from 
this (and to produce resolution depending graphics).

Or even print a page containing the x and y resolutions the printer is 
actually using:

%!PS
/Helvetica 20 selectfont
100 100 moveto
(Resolution is ) show
currentpagedevice /HWResolution get dup
0 get =string cvs show
( x ) show
1 get =string cvs show
( dpi) show
showpage

Of course, the power of PostScript is that you don't have to deal with 
the device resolution of your printer and most PostScript data don't. 
But you can if you want or need to (like e.g. to create teststrips to 
test your PostScript printer rastering quality).

John.

[toc] | [prev] | [next] | [standalone]

#4467

FromChris Johnson <chrisjohnson+news@spamcop.net>
Date2012-03-20 11:05 +0000
Message-ID<527360a93fchrisjohnson+news@spamcop.net>
In reply to#4457
In article <jk8hu0$27h$1@dont-email.me>,
   John Tytgat <this@is.invalid> wrote:
> Or even print a page containing the x and y resolutions the printer
> is actually using:

> %!PS
> /Helvetica 20 selectfont
> 100 100 moveto
> (Resolution is ) show
> currentpagedevice /HWResolution get dup
> 0 get =string cvs show
> ( x ) show
> 1 get =string cvs show
> ( dpi) show
> showpage

Tried that on my old Lexmark. Resolution is 600x600 as I always
believed from the specs.

What would be nice would be to have a bit of postscript that sets
different resolutions and prints a line of text in each on the page :)

Is that possible using standard PS (my Lexmark is only PS2)?

-- 
Chris Johnson

[toc] | [prev] | [standalone]

Page 3 of 3 — ← Prev page 1 2 [3]

Back to top | Article view | comp.sys.acorn.misc

csiph-web