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Looseleaf binding A binding method that includes drilling holes into a paper’s edge to be
easily inserted into binders.
lpi Short for lines per inch. See screen frequency.
LUT Short for lookup table.
Makeready All work required to set up a press for printing. This can include loading
plates, paper, ink or toner, as well as adjustments to the press. Very
little required in digital printing.
Mechanical binding Wire or plastic binding inserted into holes that are drilled or cut along
one gutter edge of a paper.
Media A digital printing or xerographic term used to refer to all types of paper,
transparencies, and other printable materials. Also called substrate or
stock.
Merge Insertion of text or graphic elements into a printed document from a
database or other external file.
Metamerism The tendency of colour to change with the light source in which it is
viewed.
Midtone The range of tones in an image or photograph that are approximately
midway between the highlights and shadows.
Misregistration Paper stretch, plate stretch, or misaligned plates can cause multi-colour
jobs to print out of register, resulting in slight gaps between
overlapping colours.
Moiré An undesirable pattern caused by improperly aligned halftone screens in
process colour printing.
Mottle A spotty or uneven appearance on prints, mostly in solid areas.
Off-line finisher A finishing device, such as a folder or stitcher, that is located away
from a printer or press. Paper must be moved manually from the printer
into the finishing device.
Offset printing A traditional printing process where ink is transferred from the plate to
a blanket to the paper.
Offsetting In offset printing, the ink from one printed page does not dry properly
and rubs off onto the next page.
In digital printing, dry ink sticks to the photoreceptor belt or fuser roll
and is transferred to the next sheet.
On demand printing Refers to printing where the printed documents can be printed and
delivered where and when required.
Opacity The degree to which paper will allow images and text printed on side to
show-through to the other.
OPI Short for Open Prepress Interface. An extension to PostScript which
G - 8
DocuColor 2000 series design guide