Touching up photos after printing

AJ
Posted By
Alan Justice
Sep 13, 2005
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284
Replies
2
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Closed
Sometimes there is a ding or scratch in the hardcopy of my photos. I may discover this right after printing, or later, after mounting and matting. Occasionally I have a colored pen or pencil that can be used to put a small dot in it to make it less obvious.

I’d like to try experimenting with mixing my printer inks to match the color dinged. I know I can get the CMYK values in PS by holding the cursor over the spot & checking the Info tab. I don’t have a microliter syringe, but can just use tiny drops. For example, if the color is 20, 60, 80, & 20 % CMYK respectively, then could I just use 1, 3, 4, & 1 drop to approximate that color?

But my printer is 7 colors. Is there a way to tell what the printer uses for those values (Epson 2200)?

—
– Alan Justice
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S
Stephan
Sep 14, 2005
Alan Justice wrote:
Sometimes there is a ding or scratch in the hardcopy of my photos. I may discover this right after printing, or later, after mounting and matting. Occasionally I have a colored pen or pencil that can be used to put a small dot in it to make it less obvious.

I’d like to try experimenting with mixing my printer inks to match the color dinged. I know I can get the CMYK values in PS by holding the cursor over the spot & checking the Info tab. I don’t have a microliter syringe, but can just use tiny drops. For example, if the color is 20, 60, 80, & 20 % CMYK respectively, then could I just use 1, 3, 4, & 1 drop to approximate that color?

But my printer is 7 colors. Is there a way to tell what the printer uses for those values (Epson 2200)?

—
– Alan Justice
No, you printer does not mix inks. My guess is that you would end up with some brown spots on your prints if you were to use the technique you intend to experiment with.
Do a search on halftone printing to understand how you printer "makes" colors

Stephan
AJ
Alan Justice
Sep 14, 2005
Yes, good point. If you look under magnification at either an inkjet print or a computer or TV screen, one will see individual points of color (RGB or CMYK). And our eyes (retinas) can only actually "see" 3 colors, as it contains only red, green, and blue receptors. Our brain combines them to the see the full spectrum. But our eyes do not, I assume, sesolve the individual picture elements; the systhesis is done on an average of many. For this reason I assume that actually mixing the inks will produce a similar result. We could speculate ad nauseum, or I could just try it.

—
– Alan Justice

"Stephan" wrote in message
Alan Justice wrote:
Sometimes there is a ding or scratch in the hardcopy of my photos. I
may
discover this right after printing, or later, after mounting and
matting.
Occasionally I have a colored pen or pencil that can be used to put a
small
dot in it to make it less obvious.

I’d like to try experimenting with mixing my printer inks to match the
color
dinged. I know I can get the CMYK values in PS by holding the cursor
over
the spot & checking the Info tab. I don’t have a microliter syringe, but
can
just use tiny drops. For example, if the color is 20, 60, 80, & 20 %
CMYK
respectively, then could I just use 1, 3, 4, & 1 drop to approximate
that
color?

But my printer is 7 colors. Is there a way to tell what the printer
uses
for those values (Epson 2200)?

—
– Alan Justice
No, you printer does not mix inks. My guess is that you would end up with some brown spots on your prints if you were to use the technique you intend to experiment with.
Do a search on halftone printing to understand how you printer "makes" colors

Stephan

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