| Image Area |
| That portion of the printing plate that carries the ink and prints on paper. |
| Image Setter |
| High resolution, large format device for producing film from electronically generated page layouts. |
| Imposition |
| Arrangement of pages so that they print correctly on a press sheet, and the pages are in proper order when the sheets are folded. |
| Impression |
| Product 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 Bristol |
| A relatively thick paper stock; basis size---25 1/2 x 30 1/2. |
| Indicia |
| Markings pre-printed on mailing envelopes to replace the stamp. |
| Industrial Papers |
| A term used to denote papers such as janitorial, sanitary or heavy packing papers. |
| Ink Fountain |
| The device which stores and meters ink to the inking rollers. |
| Ink Holdout |
| A quality of paper to be resistant to ink absorption, allowing the ink to dry on the paper surface. |
| Ink Mist |
| Any threads or filaments which protrude from the main printed letter body of long inks, as seen in newsprint. |
| Ink Setting |
| The inertial resistance to flow that occurs to ink as soon as it is printed. |
| Inkometer |
| A device used to measure the tack of ink. |
| Inserts |
| Extra printed pages inserted loosely into printed pieces. |
| Integral Proof |
| A 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. |
| Interleaves |
| Extra blank pages inserted loosely into book after printing. |
| Iridescent Paper |
| A coated stock finished in mother-of-pearl. |
| Italic |
| Text that is used to denote emphasis by slanting the type body forward. |
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