Digital BW, The Print

In a message dated 7/11/07 12:09:43 PM, dmdornctusa@... writes:


> Good information.
> 
> What about the dot dithering limits for the Epson 2200 and 1800/800?
> 
> This would very useful information to have on all printers....is there a 
> posted reference on the internet?
> 

Should have an addressable limit of 720 as well. This means that sending them 
a predithered (or prehalftone dotted) image in one bit B&W (NOT grayscale) 
would produce dots in exactly the pattern of the file. You can test this by 
sending one pixel wide B&W lines (ideally both horizontal and vertical lines) to 
the printer. At 360 you'll definately get lines, at 720, it will depend on the 
model. At 1440, you should fail to get lines, as its beyond the addressable 
limit.

C. David Tobie
Product Technology Manager
ColorVision Business Unit
Datacolor Inc.
CDTobie@...
www.colorvision.com


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[Non-text portions of this message have been removed]

So, does this mean I could try converting to bitmap using diffusion
dither at 720 DPI, converting back to grayscale at 1:1 ratio, then
printing at 720 DPI printer output (Fine or Photo with Text settings
on my R2400) and I should get dot pattern similar to or the same as
the file?  

Best, David.



--- In DigitalBlackandWhiteThePrint@yahoogroups.com, CDTobie@... wrote: 

> Should have an addressable limit of 720 as well. This means that
sending them 
> a predithered (or prehalftone dotted) image in one bit B&W (NOT
grayscale) 
> would produce dots in exactly the pattern of the file. You can test
this by 
> sending one pixel wide B&W lines (ideally both horizontal and
vertical lines) to 
> the printer. At 360 you'll definately get lines, at 720, it will
depend on the 
> model. At 1440, you should fail to get lines, as its beyond the
addressable 

> limit.
> 
> C. David Tobie
> Product Technology Manager
> ColorVision Business Unit
> Datacolor Inc.
> CDTobie@...
> www.colorvision.com