Inkjet 10 PPM plus

  • Thread starter Thread starter Len
  • Start date Start date
On Thu, 27 Nov 2003 14:19:51 -0000, Len wrote:

=>Any inkjets that give a true 10 ppm or more.
=>
=>Len

The ppm rating (like resolution) is another of those
objectively true but misleading numbers. AFAICT, ppm means
at "5% coverage", or a page of plain text, double spaced,
60-70 character lines, in draft mode. As soon as you add
_anything_ to this, even a few bold subheads, for example,
the speed decreases. A single small colour image can reduce
the rate to less than half the ppm number., Put the text in
columns, and the printing speed goes down. Change to Normal
or Presentation mode, and the speed is cut to much less
than half. Etc.

IOW, given that almost all printing jobs are different from
what's used to establish a ppm rating, no printer will
perform at its rated ppm in actual use. If you want 10ppm,
you'll have to get a printer rated at least 20ppm IMO. If
you want 10ppm for half-page or large, photo-quality colour
images, you won't get 10ppm with any inkjet printer.
(Anecdote: the local print shop uses a large HP,
"commercial quality" colour inkjet. A poster size
photo-quality colour print takes an hour or more to print
on this machine.)

Good luck.
 
Wolf Kirchmeir said:
On Thu, 27 Nov 2003 14:19:51 -0000, Len wrote:

=>Any inkjets that give a true 10 ppm or more.
=>
=>Len

The ppm rating (like resolution) is another of those
objectively true but misleading numbers. AFAICT, ppm means
at "5% coverage", or a page of plain text, double spaced,
60-70 character lines, in draft mode. As soon as you add
_anything_ to this, even a few bold subheads, for example,
the speed decreases. A single small colour image can reduce
the rate to less than half the ppm number., Put the text in
columns, and the printing speed goes down. Change to Normal
or Presentation mode, and the speed is cut to much less
than half. Etc.

IOW, given that almost all printing jobs are different from
what's used to establish a ppm rating, no printer will
perform at its rated ppm in actual use. If you want 10ppm,
you'll have to get a printer rated at least 20ppm IMO. If
you want 10ppm for half-page or large, photo-quality colour
images, you won't get 10ppm with any inkjet printer.
(Anecdote: the local print shop uses a large HP,
"commercial quality" colour inkjet. A poster size
photo-quality colour print takes an hour or more to print
on this machine.)

Good luck.
Click to expand...

Since posting I have been testing speed on my two year old top end HP. Draft
black text fast but anything with colour or complications and it is so so
slow. It will not be the solution for me so I will look into colour laser
more.

Thanks

Len
 
Try the Epson C84. As someone else mentioned the speed ratings are for 5%
coverage on the page.
 
As I know, the fastest desktop inkjet printer in market prints 3ppm (A4 or
Letter) in NORMAL print quality.
 
GeoSd said:
I have a Canon and it's as fast as a Laser Jet! it's just ubelevable and
thats a i860/865
Click to expand...

You suggesting that it can match the page count of an LJ-9000, 50
pages per minute for that baby.:-)
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