Printing jargon is so arcane and misused that parsing and sharing it feels like a public service. In two earlier blogs, I lifted, excerpted, and simplified a number of terms and definitions from a worthwhile print industry website, http://www.printindustry.com (go there and click on “Glossary” for more detail than we provide at White Poppy Press, The Sensible Way to Self-Publish). This is a continuation, L through P, and will be followed by Q through Z.
L
laminate: a thin, transparent, glossy plastic coating that is applied to cover stock to help protect it against spills and heavy use, and to accent color
landscape: style in which the width is greater than the height (portrait style is the opposite)
lay flat bind: method of “perfect” (glued) binding that allows a book to lie open without having to break the spine, as is usual for “perfect” binding
layout: format
leading: amount of space between lines of type
leaf: a sheet of paper in a book (each side of a leaf is one “page”)
letter paper: in the U.S. and Canada, an 8 1/2 x 11 inch sheet
legend: directions about how to use or interpret the symbols of a specific image, table, or map and how to use it
letterpress: method of printing from raised surfaces or from plates with etched surfaces (also called block printing)
lignin: substance in trees that holds cellulose fibers together
line copy: a high-contrast image (also called line art or line work)
logo (logotype):a design that denotes a unique entity, usually of a company, partnership or corporation
looseleaf: binding method allowing insertion and removal of pages, as in a 3-ring binder
loose proof: a proof that is not assembled with other elements from a page (compared to a composite proof) (also called first proof, random proof, scatter proof, and show-color proof)
M
machine glazed (MG): a paper with a high-gloss finish on one side (also C1S, coated one side)
magenta: one of the four process colors
make-ready: all of the activities needed to prepare a press for a specific printing or binding job (also called setup)
manuscript: an author’s original form of work (handwritten, typed or on disk) submitted for publication (also called ms)
margin: space around the edge of the printed material, especially between the text area and page top, bottom, and sides
mark-up: instructions written on a “dummy”
master: paper or plastic plate used on a duplicating press
matte finish: a smooth but not glossy finish on coated printing paper
mechanical: camera-ready assembly of type, graphics, and other copy complete with instructions to the printer
mechanical bind to hold sheets together (bind) using a comb, coil, ring binder, post or other technique t hat does not involve gluing, sewing, or stitching.
metallic ink: ink containing powdered metal or pigments that simulate metal
metallic paper: paper that has been coated with a thin film of plastic (or pigment) whose color and gloss simulate metal
midtones: in an image, the tones that are created by dots that only cover 30 to 70 percent (other degrees of coverage are known as highlights and shadows)
misting: when droplets of ink are thrown off the roller train (also called flying ink)
mock up: a drawing or other illustration of how printed matter should be arranged
moire: undesirable pattern that happens when halftones and screen tints are done poorly or when a pattern such as a plaid fabric in a photo interfaces with a halftone dot pattern
mottle: spotty, uneven ink absorption on a page (ink absorption is also called sinkage; a mottled image is also called mealy)
mull: a type of glue used for book binding
multicolor printing: printing in more than one ink (spot) color but not four-color CMYK process colors (also called polychrome printing)
M weight: weight of 1,000 sheets of paper
N
natural color: very light brown paper (also called antique, cream, ivory, off-white, mellow white)
nested: signatures assembled inside one another preparatory to binding, as compared to gathered (also called inset)
Newton ring: flaw in a photograph that looks like a drop of oil or water
nonimpact printing: printing that uses lasers, ions, ink jets, or heat to transfer images to paper
novelty printing: advertising by printing on coasters, pencils, balloons, golf balls, ashtrays, and other objects
O
offset printing: well-established printing technique
opacity: (1) characteristic that prevents printing on one side of a sheet of paper from showing through on the other side (2) characteristic of ink that prevents the substrate from showing through
opaque:(1) not transparent (2) to cover flaws with tape or paint before printing (also called block out and spot)
overrun:extra books that were printed
overage/underage policy:a printing establishment’s policy about who takes financial and other responsibility for overruns or underruns (also called an over- or under-clause)
P
page: one side of a leaf of paper in a publication
page count: total number of pages ina publication (also called extent_
page proof: paper or electronic file showing the type and graphics, including headings, footers, etc. as they will look on the finished page
pagination: numbering of pages
painted sheet: sheet printed with ink edge to edge (bleeds on all four sides)
panel: one page of a brochure
paper plate: a printing plate made of strong paper for short run offset printing
PE: “printer error,” a proofreader mark that shows a mistake by a prepress service or printer
perfect bind: to bind sheets that have been ground at the spine and glued to a paper cover (also called adhesive bind, cut-back bind, glue bind, paper bind, patent bind, perfecting bind, soft bind, soft cover; related to burst perfect bind and notched perfect bind)
perfecting press: press capable of printing on both sides of paper during a single pass (also called duplex press and perfector)
pica: a unit of measure approximately 0.166 inche; 12 points to a pica
picking: phenomenon of ink pulling bits of coating or fiber away from the surface of paper, leaving unprinted spots
pickup art: artwork used in a previous job that will be incorporated into a current job
pixel: a dot made by a digital device (also called picture element or pel)
plate: piece of paper, metal, plastic, or rubber carrying an image to be reproduced using a printing press
pleasing color: color the customer considers satisfactory even though it may not precisely match the original
PMS: color identification system that has been replaced by “Pantone Colors”
point: (1) for paper, a small unit of thickness (2) for type, a small unit of measure (1/12 pica or 0.013875 inch or 0.351mm)
point of sale distributed print:digitally output and glued retail product using an in-store machine such as the Espresso book machine (or Sprouts, no longer in operation)
portrait: a design in which the height is greater than width (opposite of landscape)
post bind: to bind loose sheets using a screw and post inserted through a hole in each sheet
prepress: camera work, color separations, stripping, platemaking, and other functions performed by the printer or a service bureau prior to printing (also called preparation or make-ready)
prepress proof: any color proof made using ink jet, toner, dyes or overlays (compared to a press proof made using ink) (also called dry proof or off-press proof)
press check: when makeready sheets are examined before full production is authorized to begin
press proof: proof made on press using the plates, ink and paper specified for the job (also called strike off or trial proof)
press time: (1) amount of time that a printing job spends on press, including time required for makeready (2) time of day at which a printing job goes on press
price break: quantity at which unit cost of paper or printing drops
print-on-demand: digital output of product (also called sell-then-print)
printer pairs: consecutive pages as they appear on a flat or in a signature
printer spreads: mechanicals made so they are imposed for printing (as compared to reader spreads, which are pages in sequence for reading)
printing: any process that transfers to paper or another substrate an image from an original such as film, electronic memory, stencil, die, or plate
printing plate: surface carrying an image to be printed
process camera: camera used to photograph mechanicals and other camera-ready copy (also called copy camera or graphic arts camera, and sometimes stat camera)
process color (inks): yellow, magenta, cyan, and black
proof: test sheet made to reveal errors or flaws, predict results on press, and record how a printing job is intended to appear when finished
proofreader marks: standard symbols and abbreviations used to mark up manuscripts and proofs (also called correction marks)
proportion scale: round device used to calculate percent that an original image must by reduced or enlarged to yield a specific reproduction size (also called percentage wheel, proportion dial, proportion wheel, scaling wheel)
publishing paper: paper suited to books, magazines, catalogs, and free-standing inserts

