Xerox 2000 Owner's Manual page 190

Sheet-fed press
Sheets per hour
Short edge feed
Short grain
Short run
Show-through
Signature
Simplex
Spectrophotometer
Spot colour
Spread
Spreads
SRA0
SRA1
SRA2
SRA3
Stochastic screening
DocuColor 2000 series design guide
G - 12
A printing press, either digital or offset, that prints on cut sheets of
paper.
A term commonly used to describe the speed of binding and folding
operations.
The shortest edge of the paper is fed into the printer first.
Paper in which the orientation of fibres is parallel to the shortest edge
of the sheet. For example, in an A4 sheet, the fibres of a short grain
sheet are parallel to the 210 mm dimension of the page.
A run length on a printing press typically less than 1,000 copies.
Printing on one side of a sheet that can be seen on the other side under
normal lighting conditions.
Both sides of a printed sheet that are folded to make up a section of a
printed piece. A greeting card is a good example – when opened fully,
the card is divided into quadrants.
To print on one side of a sheet and leave the other side blank (digital or
xerographic printing term).
An instrument for measuring colour in CIE colour spaces.
A colour printed with custom inks rather than process colours. The
colour is usually specified using the PMS or Pantone numbers.
A form of trapping. A spread traps a light foreground to a dark
background. The lighter colour is spread outward slightly into the darker
colour to maintain the visual edge. See also choke.
Printer spreads are pages that appear next to each other so that after
folding and finishing, they are in the proper order. Reader spreads are
pages that appear across from one another in the final bound and
finished publication (ie, what the reader actually sees).
Standard ISO cut sheet size of 900 x 1280 mm. The sheet size is slightly
larger than A0 allowing for bleed.
Standard ISO cut sheet size of 640 x 900 mm. The sheet size is slightly
larger than A1 allowing for bleed.
Standard ISO cut sheet size of 450 x 640 mm. The sheet size is slightly
larger than A2 allowing for bleed.
Standard ISO cut sheet size of 320 x 450 mm. The sheet size is slightly
larger than A3 allowing for bleed.
A relatively new method for creating halftones. Stochastic screening
generates equal size dots that appear to be placed randomly. Advanced
algorithms are used to determine the optimum placement of dots so as
not to cause visual artifacts (such as moire patterns). Registration on
press is slightly more difficult than with lined screens but the colours
can be very brilliant. The concepts of screen frequency and screen
angles do not apply with stochastic screening. Also called FM screening.