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OT: Using QTR to overcoat colour prints with glop - A3+ R800 now...almost

OT: Using QTR to overcoat colour prints with glop - A3+ R800 now...almost

2005-02-01 by Steve Kale

Given the discussion when glop first became "flexible" with the refillable carts I thought I 
would post a couple of observations.  If anyone wants to follow up with me I guess they 
can contact me off-list.  I set up a QTR "curve" to apply glop as an overcoat (15% flat) to 
my colour images printed with the Epson driver.  (For B&W images glop can be introduced 
immediately at printing as one of the inks.)

All I can say is that the glop does an amazing job - even if MIS weren't happy with it and 
intend to bring out a revised version!  It is like the glop version has had the dust brushed 
of it.

One issue though.  Page sizes.  I was hoping to be able to simply reprint an image with 
QTR and the curve instead of the Epson driver - the curve would simply lay down glop in 
all non-pure white areas of the image.  (You can send Adobe RGB files to QTR - OS X 
simply converts them on the fly to greyscale files.)  However, QTR's page size (centred) 
does not match the Epson "No Margins" page size and so the same image is a fraction 
smaller with QTR than Epson - that's how I could easily see the glop vs no glop 
comparison.  It's a real shame because the alternative is to print the entire page with glop 
which obviously uses a lot more glop.  Also QTR will not print the bottom 1.5 cm or so of 
the page (A4 centred means it doesn't print the first 1.5cm.)  At 15% application, the glop 
does not have any real visible colour but the sheen of the paper changes and it is 
noticeable even on paper white.

I did the tests thus far with A4 paper.

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