Galley Proof

A proof of text copy before it is pasted into position for printing.

Galley Slave

Old term for compositor.

Gang

Group of frames or impositions in the same forme of different jobs arranged and positioned to be printed together.

Ganging

The bundling of two or more different printing projects on the same sheet of paper.

Gather

To assemble or collect sections into single copies of complete books for binding.

Gathering

Assembling sheets of paper and signatures into their proper sequence; collating.

Ghosting

Image which appears as a lighter area on a subsequent print due to local blanket depressions from previous image areas on a letterpress rotary machine as well as on an offset press.

Ghosting

Marring a print by the placement of an image of work printed on the reverse side which has interfered with its drying so that differences in the trapping frame colors or glass variations are apparent.

Gigo

Garbage in, garbage out.

Gilding

Sticking on gold leaf to edges of books with a liquid agent and made permanent with burnishing tools.

Glassine

A strong transparent paper.

Gloss Ink

Quick drying oil based inks with low penetration qualities, used on coated stock.

Glyphic

A carved as opposed to scripted typeface.

Goldenrod

An orange colored paper with gridlines, used to assemble materials for exposure for platemaking.

Graduated Screen

An area of image where halftone dots range continuously from one density to another.

Grain

Direction of fibers in a sheet of paper governing paper properties such as increased size changes with relative humidity, across the grain, and better folding properties along the grain.

Grained Paper

A paper embossed to resemble various textures, such as leather, alligator, wood, etc.

Gravure

An intaglio or recessed printing process. The recessed areas are like wells that form the image as paper passes through.

Gripper

A series of metal fingers that hold each sheet of paper as it passes through the various stages of the printing process.

Gripper Edge

The grippers of the printing press move the paper through the press by holding onto the leading edge of the sheet; this edge is the gripper edge.

Groundwood

Low cost papers such as newsprint made by the mechanical pulping process as opposed to chemical pulping and refining.

Gumming

The application of gum arabic to the non printing areas of a plate.

Gutter

Space between pages in the printing frame of a book, or inside margin towards the back or binding edge. The blank space or margin between the type page and the binding of a book.

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