Image AreaThat portion of the printing plate that carries the ink and prints on paper.
Image SetterHigh resolution, large format device for producing film from electronically generated page layouts.
ImpositionArrangement of pages so that they print correctly on a press sheet, and the pages are in proper order when the sheets are folded.
ImpressionProduct resulting from one cycle of printing machine. The pressure of the image carrier, whether it be the type, plate or blanket, when it contacts the paper.
Index BristolA relatively thick paper stock; basis size---25 1/2 x 30 1/2.
IndiciaMarkings pre-printed on mailing envelopes to replace the stamp.
Industrial PapersA term used to denote papers such as janitorial, sanitary or heavy packing papers.
Ink FountainThe device which stores and meters ink to the inking rollers.
Ink HoldoutA quality of paper to be resistant to ink absorption, allowing the ink to dry on the paper surface.
Ink MistAny threads or filaments which protrude from the main printed letter body of long inks, as seen in newsprint.
Ink SettingThe inertial resistance to flow that occurs to ink as soon as it is printed.
InkometerA device used to measure the tack of ink.
InsertsExtra printed pages inserted loosely into printed pieces.
Integral ProofA proof made by exposing each of the four-color separations to an emulsion layer of primary colors. These emulsion sheets are stacked in register with a white sheet of paper in the background. Types of integral proofs are cromalin, matchprint, ektaflex, and spactraproof.
InterleavesExtra blank pages inserted loosely into book after printing.
Iridescent PaperA coated stock finished in mother-of-pearl.
ItalicText that is used to denote emphasis by slanting the type body forward.