Xerox 2000 manual Image size/paper size, Screens, image reproduction process, Paper size name

image reproduction process

Image size/paper size

The DocuColor 2045 and 2060 accept standard paper sizes of A4, A3 and SRA3. They will also accept non-standard paper sizes, from 182 mm to 320 mm in height, and 182 mm to 488 mm in width.

The DocuColor 2045 and 2060 will print to within 4 mm of each paper edge. The following table provides the imageable area for different paper sizes.

Paper size name	Paper size	Image area
Minimum paper size	182 x 182 mm	174 x 174 mm
A4	210 x 297 mm	202 x 289 mm
A3	297 x 420 mm	289 x 412 mm
SRA3	320 x 450 mm	312 x 442 mm
Maximum paper size	320 x 488 mm	312 x 480 mm

Screens

Screen ruling is a measurement of lines per inch (lpi) or number of lines (or rows) of halftone dots printed per inch on the page. When an image has a high screen ruling, the dots are printed close together, resulting in sharp colours and images. Low screen rulings print dots farther apart, resulting in a coarser effect. High screen rulings are typically used for higher quality output on less porous surfaces (eg, gloss coated stock), while low screen rulings are used for more porous surfaces that are prone to dot gain (eg, newsprint).

When you print in colour, the rows of CMYK dots are printed in individual screens. One layer is used for each base colour (ie, one cyan, one magenta, one yellow, and one black). These screens are then overlapped and printed to create the illusion of multiple colours. Screens are angled, forming a symmetrical pattern called a rosette so that the dots don’t print on top of each other. Your eye easily merges these patterns into smooth colour gradations.

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