Fine Print Knowledge Center
The online guide to print and design.
- Operating Software
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Software for the organization of data input and output, the administration and use of storage space, and the operation of application software.
It forms the basis of additional programs and creates an interface between software and the computer.
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- Operating System
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Software that is normally supplied by the computer vendor that consists of a set of very complex programs that control the monitor and executes programs
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- OPI
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Open Prepress Interface
An extension of the PostScript page-description language that lets you design pages with low-resolution placeholder images and replace the images with high-resolution images when creating separations.
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- OPP
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Oriented Polypropylene
A high strength label which works well in roll-fed labeling equipment.
It is environmentally friendly.
OPP runs well over a wide range of temperatures and has good clarity, good printability and is moisture resistant.
Its shrink capabilities are substantially lower than PVC and PETG.
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- Optical Centering
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The positioning of an object slightly above center so that it will appear centered in relation to top and bottom.
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- Optical Character Reader
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An optical scanner that reads printed letters on a page and translates them into a form that the computer can understand.
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- Optical Gain
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When halftone dots appear larger than their actual size due to printing on paper that has a rough surface. This will affect the quality of the printed image.
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- Optical Margin Alignment
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Type set so that the first line aligns with the left margin, then succeeding lines are indented a fixed distance from the left margin, also referred to as a hanging indent.
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- Optical Resolution
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The resolution that is determined by the true or actual number of pixels a digital camera can capture both horizontally and vertically, without being interpolated, such as 1280×960
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- Optical Scanner
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A device that can “read” an image and translate it to digital form so that it can be understood by a computer.
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- Optical Viewfinder
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A “through the lens” traditional means of viewing the subject matter to be photographed.
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- Optically Variable Ink
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The color of optically variable ink changes when viewed from different angles.
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- Orientation
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The direction in which text is on a page with respect to the long and short sides of the page.
Choices are printing portrait, where text is running parallel to the short side of the page, or landscape, where text is running parallel to the long side of the page.
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- Origin
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A starting position from which placement and orientation of text, images, and page segments are specified.
The origin across a page would be relative to the zero position on the horizontal ruler, and the origin down a page would be relative to the zero position on the vertical ruler.
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- Original
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The material that is reproduce to be used in the printing process. Generally a photograph, artwork, product sample or artist’’s drawing.
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- Orphan
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The first line of a paragraph that ends up as the last line of a column or the last line of a paragraph that ends up as the first line of a column.
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- Ortho
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Orthochromatic
Denotes film sensitive to blue and green light.
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- Orthochromatic
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- Orthocromatic Film
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Film that is not sensitive to red light but is sensitive to ultraviolet, blue, green and yellow light.
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- OS
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Operating system
1. Software that is normally supplied by the computer vendor that consists of a set of very complex programs that control the monitor and executes programs.
It can handle tasks such as scheduling and loading programs, and producing the computer log.
It can also control multi-programming and handle routing and scheduling of terminal communications.
2. The computer program that controls the electronic functions within a digital camera.
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- OS/2
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- OSI
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Open Systems Interconnection
International standards used for data communications networks.
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- OSI Reference Model
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The architecture, consisting of seven layers, designed by ISO for open data communications networks.
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- OSS
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- Out of Register
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When an image is not printing in the exact location that it is suppose to. When printing more than one color, if the colors do not line up properly, they are out of register
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- Out-of-Series
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Unnumbered editions from a numbered limited edition series.
They are considered “extra copies” of the edition, are usually not signed, and are not considered part of the limited edition series.
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- Outline Font
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1. A typeface that has characters that are defined by an outline of the edges rather than a solid character.
2. A font used by the printer in which each character is geometrically described, differing from bitmapped fonts that are viewed on a monitor and stored as patterns of dots.
Outline fonts are scalable and can be output at any size.
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- Outline Halftone
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A halftone where the background has been removed from around the main subject.
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- Output
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Sending information from a computer to a printing device to produce a printed page, to a monitor to be display an image or a speaker to produce sound.
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- Output Device
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Any device that can output information from a computer, generally a printer of some type but could also be a device such as a display screen, and speakers.
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