Purple Cast

DC
Posted By
d_cole
Jun 9, 2004
Views
270
Replies
2
Status
Closed
I am using PSCS with an Epson 1290 (UK) printer, Sony GDM F520 monitor, and Matrox P650 vga card.

Until recently I was getting quite acceptable prints (i.e. what came out of the printer was a pretty good match for what I saw on the monitor) using the Epson 1290 ICC paper profiles in the CS print profile and "No colour adjustment" selected in the Epson software.

Then suddenly (I don’t know why) these settings started to produce a purple or reddish cast, or a garish over saturation, both on the Epson print preview image and on the prints themselves. This image corruption is not visible in the PS print preview.

The cast and oversaturation disappear when I use other print profiles such as "Same as Source" or the "Epson 1290".

I can of course just use these other profiles as alternatives but all the advice I have read is that the individual paper profiles are superior.

From what I have read it looks as though colour management may be taking place twice – but if true, I am baffled by this because colour management is switched off in the Epson software.

I have reinstalled the Epson software and individual paper profiles. This made no difference. The monitor is very recently calibrated using Adobe Gamma and the resulting profile correctly loaded.

I know that a reddish or purple cast has arisen before with the Epson 1290 but I have not been able to find a solution searching the web. If anyone has one, I’d be very grateful to know what it is.

Thanks.

David

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BB
brent_bertram
Jun 9, 2004
David,
If your settings truly haven’t changed, then check for clogged nozzles using the Epson utility. Any clogged nozzles on the print head can throw off the delicate balance that makes for accurate prints.
If not the nozzles, is your working space the same, or are you perhaps inadvertently printing from a softproofed image ?

🙂

Brent
DC
d_cole
Jun 9, 2004
Brent
Thank you for these ideas.
I don’t think its the colour cartridges because they do not always produce the cast – the cast seems software dependent.

What is soft-proofing please? And what is Color Slider mode?

My colour settings are (reading downwards) –
Custom
Adobe RGB (1998)
Euroscale Coated v2
Gray Gamma 2.2
Dot Gain 20%
Off
Off
Off
Profile Mismatches ask ticked
Adobe (ACE)
Perceptual

nothing else ticked

My PS Print settings are:
Colour Management
Document:untagged RGB
Print space profile: Epson 1290 (or whatever)
Print space intent: perceptual

Use black point compensation not ticked

Most of my images are Untagged RGB, but the first image that the problem arose with is an Adobe RGB (1998).

I will go back for another look at the advice on computer darkroom but if you have any further thoughts I’d be glad to hear them.

David

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