Epson C82362 User Manual download pdf (Page 51)

User’s Manual

Support

Epson and other manufacturers have excellent support areas accessible via the

internet. Take some time to visit www.epson.com and www.inkjetmall.com. There is

also a support area for FastRIP

users at www.FastFILMS.com/fastrip/users. The

FastRIP

User Arena includes News, Frequently Asked Questions, Public Documents,

Technical Articles, a Request Support Form and additional downloads for the FastRIP

program.

Inkjet Problems and Issues

Overspray and Dot Shape

Generally speaking, an inkjet printer will print a fairly clean image. However, an inkjet

uses hundreds of tiny little nozzles to spray out the ink drops and occasionally a few

random drops are deposited outside the image area. If you look at a typical inkjet print

with a 30X magnifier, you may see a few random dots scattered very close to the actual

image area. These dots are extremely small and will not burn or expose on a screen or

plate. These dots are also generally only on one side of a halftone or image edge.

Another quirk of an inkjet printer is its dot shape- it’s not an exact “dot” or “ellipse.”

However, if you compare inkjet dots with those from a laser printer or lower resolution

dry thermal system, the inkjet dots are much cleaner. If you are concerned about the

lack of a perfect shape to halftone dots, you need to compare the cost investment

against how critical an exact dot shape is for printing. Even in an imagesetter output, the

dots are not perfect.

Many very successful companies use inkjet output to print high-end process color and

simulated process color on light and dark shirts. If you didn’t know better you would

think the films came off an imagesetter. Even if you use FastRIP

for Flexo or basic

offset negative images (newspapers and low LPI halftone usage), the dot is clean

enough.

Output Speed

There may be some concern about the speed of printing when using an inkjet printer

because inkjet’s typically don’t have as much memory asa laser printer or dry film

system. Don’t be concerned. FastRIP

uses your computer’s memory when “RIP'ing”

the image. If you print to a 17” x 22” piece of film, the actual printing time may take up to

nine minutes. That may seem long, but FastRIP

actually processes the image much

faster than RIP's that are built into laser printers. Therefore, the actual rasterizing of the

image is much faster and technically speed IS NOT an issue when printing with an

inkjet.

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Epson C82362 User Manual Page 51