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
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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