RE: Epson Phoro printers - 16 bit?
RE: Epson Phoro printers - 16 bit?
- Subject: RE: Epson Phoro printers - 16 bit?
- From: Ray Maxwell <email@hidden>
- Date: Wed, 16 Jul 2003 10:35:33 -0700
I cannot address the issue of eight or sixteen bits when using the Epson
drivers, however, I can give some information about these printers when
driven by third party RIPs or Controllers.
The raw data sent from a RIP or Controller to the Epson printer is two bits
per ink channel. This means that you can select no drop, small drop, medium
drop, or large drop for each of the seven ink channels. You also can choose
the interleaving mode of the printer.
So the question is not how many bits per color the printer will take, but
how many screen tiles the RIP can select from for a given toneal value,
resolution and interleaving mode.
I do know that some third party RIPs have 12 bit input addresses to their
linearization tables. This would imply that they have 4096 levels of
screening.
The real question is does a RIP or Controller maintain more than 8 bits per
channel when selecting a screening tile in the RIP.
I have not been able to determine this at this time.
Ray
Creo
Ray Maxwell | Senior Color Systems Engineer, Inkjet Printing
4225 Kincaid Street | Phone (604) 451-2700 ext. 2004
Burnaby, B.C.
Canada V5G 4P5
IMAGINE CREATE BELIEVE
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