Printer vs Screen Res.
21-Sep-95 16:40:58
Sb: #191943-Printer vs Screen Res.
Fm: Dennis Conklin 75020,2746
To: Dennis Conklin 75020,2746
Lurker's Addendum, Stardate 23756.8
Just to prove to you that I really was confused by all this at one
time (and still am) – I re-read my previous message after my second cup of
caffeine
and I realize I goofed – a 3 x 3 pixel "line" wouldn't accommodate
all 17 million colors – you need a bigger matrix – in fact the
matrix comes out to about 120 LINES-PER-INCH (lpi) on the Stylus
in 720 DOTS-PER-INCH (dpi) mode.
Most commercial printer types recommend that you have a
PIXEL-PER-INCH (ppi) of about twice the LPI of your output, hence
a ppi of about 240 is good for output to the Stylus
in 720 dpi (or 120 lpi) mode. As an point of interest, if you go
out to a commercial printer, he is likely to tell you what the lpi
of his press is (rather than the dpi), which tells you directly what
ppi you need (2X). It's just printers like the Stylus that force us to
convert from dpi to lpi to ppi.
Ditto for a ppi of 120 or so being good for a Stylus in 360 dpi
(~60 lpi) mode.
Dennis "Lurker" Conklin