Stylus Color/Mac Alert
2 messages in this thread
I'm hoping to get some reactions from people who use both the Apple Mac and the
Epson Sylus Color printer for a story for the San Jose Mercury News.
Epson has just acknowledged that the popular Stylus Color does NOT deliver
true 720 dpi output when printing from a Mac. However, the Epson Stylus Color
DOES deliver true 720 dpi when printing from Windows.
Epson's explanation is that this is not a bug, but rather the result of a
concious design decision within the Mac environment. "The Macintosh OS requires
that system RAM be used in imaging print jobs," Epson says. "The amount of RAM
required to draw and half-tone a 720×720 dpi full color image can be huge,
depending on the application.
"Also, the EPSON Stylus COLOR ink jet printer connects to the Macintosh via a
standard Mac serial port. The throughput on this port is a small fraction of
the throughput on a bi-directional parallel port, as in use for the PC
interface. These factors result in very slow printing times on the Macintosh
when compared with the PC on 720 dpi print jobs.
"Realizing that the Stylus COLOR would be marketed based on photo realistic
print quality, EPSON made a design decision intended to benefit the largest
percentage of our target customers. The intent was to offer full output
quality in color rendering, while optimizing throughput on the slower Macintosh
port and minimizing use of the Macintosh's memory. The way this was achieved
was to rasterize an image using 360 dpi data, but halftone it at 720 dpi."
The resulting output is the best available in its class on the Mac, but it is
not true 720 DPI, and it is not as good as what Windows users can get with the
same image, same program and same printer.
So what I wonder is, how do you feel about this? Does it matter that Mac
output is somewhat inferior to Windows output? Do you feel you were deceived by
Epson? Thanks for your comments…
Bruce Brown
for the San Jose Mercury News
Hi Bruce,
I'm a little confused, so don't jump on me if I am wrong because this is a
confusing subject. There are "continuous tone" printers and "half tone"
printers. Most inkjets are half tone printers, including the Color Stylus. Are
you saying that the Color Stylus is a continuous tone printer in Windows and a
halftone printer on the Mac? Or are you saying it is storing even less
information that the Windows version uses for halftoning. I mean you would tend
to want 360 dpi or less to half tone print at 720, to get the full color depth
etc. At least this is what books like "Real World Scanning and Halftones" etc.
would have me believe, if I have read them correctly.
Apologies if I haven't.
But if you, and Epson are talking about the "new driver" 1.20e or 1.20a or
whatever they decide to finally call it, (and I believe I have uploaded three
different versions of the driver from Cserve in the past month or so), I am
very annoyed with it. It's problems seem very typical of Epson and its attitude
towards the Mac community.
The first version of the new 1.20a seemed to pour too much ink on my photoshop
prints, so I thought Epson had decided to make the driver print darker for
those people who were complaining they weren't getting "true blacks". Thus as a
test, I tried the new 1.20a driver printing from Illustrator, where (with the
previous driver 1.10e) I had gotten remarkable detail with Illustrator's
"patterns" and elegant smooth curves, in fact the Epson 1.10e driver printed
everything well in Illustrator except eps previews from Photoshop. But with the
new 1.20a driver, yuck!!! My beautiful curves looked like someone had smeared
them, the colors were overblown, and actual detail difference that I used to
see between 720 and 360 dpi (in showing really small Illustrator patterns, for
example), were now gone, seemingly covered up with too much ink.
So are you telling me that Epson tried to solve the "long wait" print problem
by decreasing the amount of information sent to its printer? That wouldn't
surprize me. With driver 1.10e Photoshop always seemed to take the same time
to spool 360 dpi pictures, regardless of the detail in the picture, and the 720
dpi pictures were consistantly longer for the printer to spool to the system
folder before sending the picture to the printer. However with Illustrator, the
spool times would vary more, as if the software was taking more time to
rasterize a picture with more detail in both the higher and lower dpi settings.
Now the spooling always seems to take nearly the same amount of time,
regardless.
Of course, the 1.20a driver is faster, mostly because it takes less time to
spool. But to my eye, much detail has been lost to the print. So is this what
you are talking about, Bruce?
By the way, I tried a second version of the 1.20a driver (called 1.20e? on
Cserve). This driver could not make up its "mind" to stay set on either the
printer or modem port. The third and most current 1.20a driver I uploaded does
seem to work, but now the 1.20a driver has a new alert for me to kill the print
file it has spooled to the system folder during low ram (or tight disk space
situations?).
This event is typical of how Epson solves a problem. Using the earlier 1.10e
driver in a similiar low ram/tight disk situation Photoshop would sometimes
take a nose dive and (surprize!) I would be able to print my picture on the
restart, with Photoshop out of ram, and Photoshop's virtual memory ram disk not
cluttering up my hard disk, anymore. It's not the best way to get a "print
later" out of the Epson driver, but it worked.
I can't say it made up for crashing the system, but gee, would it have been so
hard for Epson to add a "print later" spooling alternative to the new and
improved driver, since the driver seemed to work well on a forced restart,
anyway? Wouldn't people in low ram, or low diskspace situations be grateful to
be able to safely print files that no longer had to share ram and/or disk space
with memory hungry applications like Photoshop??? Instead, with the current
1.20a driver the printable "spool file" is so much garbage to Epson, and if you
don't "okay" killing the file with their "alert" the kill file "alert" will
return on the restart. No more "accidental" printing! Bummer.
So for the forth time I have returned to driver 1.10e which came out last
November. Frankly I don't trust Epson to come out with a decent driver, at this
point, and I've come to think of them as "mean spirited" in how they choose to
solve a problem. I'm not surprized that they choose to disfunction the "720 dpi
printing" to "fix" the driver. Frankly, I'm beyond angry.
Now Bruce, if you are saying that the Mac dpi has been crippled even since the
earlier driver (1.10e) that is even more interesting. I guess I shall have to
try networking my pictures over to the PC, to print from Matisse. Can Matisse
read picts, tiffs, Illustrator eps etc.? Oh the joys of modern life!
So yes, its annoying, I feel betrayed but I've spent enough time and energy in
dealing with Epson, and I'm looking for a good postscript alternative to the
Epson software, anyway.
S.Nichols(wife) on B.Bogert's account.