Photoshop CS3 crashes when I try to print from Epson R2400

DM
Posted By
Darren_McNeill
Aug 26, 2008
Views
491
Replies
6
Status
Closed
Hi,

For no reason that I can see, when I try to print from my Epson R2400, Photoshop CS3 crashes.

It was working fine up to yesterday with no issues.

I have re installed the drivers etc but no use.

I also cannot choose Printer Manages Colors, as it is now greyed out.

When the the Printer dialogue opens and I click on the Page Set up I get the Error that "Photoshop CS3 has encountered a problem and needs to close"

Any ideas please?

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DM
Darren_McNeill
Aug 27, 2008
Found out the issue and maybe Adobe can do something to at least stop Photoshop from crashing.

The Printer prints fine with any other application.

The image is a LAB Colour Image.

I wanted a B+W version, So I duplicated the Lightness Channel, then deleted all other channels except the Lightness Copy channel.

This is why it then crashes.

Printing any other Mode is fine.

I’m probably causing Photoshop to freak out due to perhaps colour issues.

I duplicated the issue on another machine and the same effect happened.
JJ
John Joslin
Aug 27, 2008
maybe Adobe can do something

Only if you report it to them. This is a user to user forum.
F
Freeagent
Aug 27, 2008
I wanted a B+W version, So I duplicated the Lightness Channel, then deleted all other channels except the Lightness Copy channel.

I’m not even sure that this will work – randomly deleting channels and trying to print the remains.

Why not convert to grayscale for the print?

I duplicated the issue on another machine and the same effect happened

….which again suggests that the procedure itself is the problem.
DM
Darren_McNeill
Aug 27, 2008
Thanks for the replies.

I understand now that the procedure is probably the reason.

I was just experimenting as LAB colours are colours we see through our eyes, while RGB, CMYK etc are "computer" colours and so I use LAB colours a lot, before switching back to RGB.

I normally switch to LAB mode and click on the Lightness channel, then play with adjustments of that channel. This time I decided to mess around and see what would happen if I removed all channels except the Lightness one….

Converting to greyscale for me is not enough unfortunately and LAB B+W provides much better contrast and tone than hitting CTRL+Shift+U to greyscale.

Again, I understand what you say, my point being though that Photoshop should not crash because I incorrectly remove the channels, perhaps a warning to tell me I can’t do it would be better.

I’ll pass this onto Adobe anyway.

cheers
F
Freeagent
Aug 27, 2008
LAB colours are colours we see through our eyes, while RGB, CMYK etc are "computer" colours

That’s stretching it a long way and basically a misunderstanding. They’re all just synthetic models.

What distinguishes Lab is that it has a much wider gamut than other commonly used color spaces, and it was made to contain all the colors that the eye can see (plus, I think, quite a few more). But there’s no way you can output all those colors from your computer; not to any monitor and not to any printing process. Working in wide-gamut color spaces such as Lab or ProPhoto RGB can be useful for editing purposes; but you need to be aware that there is an output bottleneck that those color spaces simply will not squeeze through.

As for the difference between Lab lightness channel and Grayscale, that has to do with the different ways RGB and Lab translates to B & W. If you go from Lab to grayscale you’ll see no difference to the Lab lightness channel.

As far as colors are concerned: you should be very careful about outputting directly from Lab. It’s primarily an editing space; not a space suitable for output. It will be converted in any case.
DM
Darren_McNeill
Aug 27, 2008
Hi,

Thanks for the explanation.

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