Digital BW, The Print

Or put another way, it¹s barely worth losing colour functionality (and
reduced B&W toning) for a mere 0.87% of dots!

It would be interesting to see this analysis run for some other settings
(e.g. warm and cool)



From: Roy Harrington <roy@...>
Reply-To: <DigitalBlackandWhiteThePrint@yahoogroups.com>
Date: Thu, 31 May 2007 17:27:15 -0000
To: <DigitalBlackandWhiteThePrint@yahoogroups.com>
Subject: [Digital BW] Ink Comparison of Epson ABW and regular drivers

 
 
 


Since there's been talk about the two Epson driver modes I thought
it would be worthwhile seeing how they compare in ink usage.
The following "prints" were done to a file and analyzed to see what
commands were being sent to the printer.

Comparison of ink usage from the Epson R2400 with Epson driver
Image - grayscale 21 step wedge
Paper - Velvet Fine Art
Quality - Best Photo (1440x1440)
Both prints use 2 dot sizes, percents are weighted based on drop size

Epson ABW driver - neutral
total 100% dots 9,763,341 small 2,532,646 medium
K 31.27%
LK 26.15%
LLK 21.03%
LM 12.76%
LC  7.92%
Y  0.87%

Epson standard driver - Epson Velvet Fine Art profile
total 100% dots 10,393,768 small 2,694,351 medium
K 32.84%
LK 49.40%
LLK  1.29%
M  3.25%
LM  4.39%
C  2.90%
LC  2.37%
Y  3.54%

Some observations:
ABW uses a lot more LLK --- 16 times!
ABW uses a lot less Y   --- 1/4 the amount
ABW uses no dark C and M

Interestingly this really supports the idea of replacing the Y
ink with a LLK ink with either driver.

Roy




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