screen printing > Newbie
What is a RIP anyway?
blue moon:
RIP (raster image processor) is a program that provides several functions needed to generate the screenprinting films.
1. it converts the grayscale in the image to halftone dots. This allows the reproduction of photo type art to be printed with a screen.
here is an example:
copyright scott fresner/t-biznetwork
2. It controls the amount of ink deposited on the film (for ink-jet printers). Most printers used for the film positive generation allow for different amount of ink to be deposited with each droplet. This function, on a basic level, compensates for different types of film and their ability to absorb the ink. More sophisticated programs will actually allow for compensation based on the halftone percentage (for example, depositing less ink in the middle range where the likelihood of dot gain is higher. Or if the films are not dark enough in the shadows, ink volume can be increased there without influencing the snaller dots)
3. Provides Post Script Language for the printers that are not compatible with it. Most of the InkJet printers are not equipped with a Post Script Language needed to interpret the halftone results to printhead commands. In this case, RIP software translates the percentage dots generated by conversion and it directs the printer (or in some cases the printhead directly) how to eject the ink.
Dottonedan:
ooooh! Look at you! Mr. "can do" too. ;)
dlac:
I thought it was people put on headstones...
LIKE
R.I.P
Here lies someone... you know
dlac
RichardGreaves:
I wrote this article for Specialist Printing, the ESMA magazine in 2007.
http://www.ulano.com/ijf/whatdoesaripdo.htm
http://www.specialistprinting.com/index.htm
blue moon:
--- Quote from: RichardGreaves on May 20, 2011, 03:33:26 PM ---I wrote this article for Specialist Printing, the ESMA magazine in 2007.
http://www.ulano.com/ijf/whatdoesaripdo.htm
http://www.specialistprinting.com/index.htm
--- End quote ---
Hey Richard, can we post that on here if we give Ulano the copyright credit and a link?
pierre
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