Flora Digital Printing System
Model LJ320P
Copyright 2011@ Shenzhen Runtianzhi Image Technology Co.,Ltd. By Victor Xu
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Appendix C Glossary
Adobe Acrobat
- Software package created by Adobe for converting any document to an Adobe Portable
Document Format (PDF) file. Anyone can open your document across a broad range of hardware
and software using the downloadable, free software Adobe Acrobat Reader, and it will look
exactly as you intended—with layout, fonts, links, and images intact.
Aliasing -
A defect which occurs when a graphic file does not have enough resolution to reproduce image
detail and causes visible jagged lines along the edges
Attachment
- When referring to e-mail, an electronic file placed within an e-mail for the purpose of sending
through the Internet.
Banding
- It is the horizontal, parallel lines in an ink jet print caused by a falsely aligned or defective print
head. It is also the vertical lines caused by some mechanical problem.
Bi-directional Printing
- Printing in which the print head alternates printing a line left to right, then the next
line right to left, etc.
Bitmap Images -
Computerized image made up of a collection of dots or pixels; these images appear
blocky when you zoom in; also known as raster images
Bleed
- Ink which prints beyond the trim edge of the page, created for the purpose of allowing ink to extend
to the edge of the page after trimming. Without bleed, cutting the product becomes extremely
difficult and may sacrifice the quality of the product.
CMYK
- cyan, yellow, magenta, black. The subtractive primaries, or process colors, used in color printing.
Black (K) is usually added to enhance color and to print a true black.
Color Bar -
Strips of color used as a tool to check color accuracy and density
Color Mapping -
The terminology that permits the “best match” in appearance to the “source image”.
Color Separations
- The process of preparing artwork, photographs, transparencies, or computer-generated
art for printing by separating color into the four primary printing colors: cyan, magenta, yellow and
black.
Contrast:
The comparing of light and dark on an image, such as low = gray (light).
Crop
- To cut off parts of a picture or image.
Crop marks
- Printed lines showing where to trim a printed sheet.
Densitometer
- A quality control devise used to measure the density of printing ink.
Density
- The degree of color or darkness of an image or photograph.
Dithering:
Creating dots to “fool the eye” into seeing shades of gray.
Dot Size
- Relative size of halftone dots as compared to dots of the screen ruling being used. There is no
unit of measurement to express dot size. Dots are too large, too small or correct only in comparison
to what the viewer finds attractive.
Dots-per-inch -
Measure of resolution of input devices such as scanners, display devices such as monitors,
and output devices such as laser printers, image setters and monitors. Abbreviated DPI. Also called
dot pitch.
Drop-On-Demand (DOD) / impulse
- an ink jet system in which pressure pulses are generated directly in
the print head by piezo crystals or heated resistors to eject drops of ink only when they are needed to
print a dot
Drop Mass or Drop Volume
- The size of a jetted drop of ink, usually measured in nanograms. Adequate
