Printing Glossary

Hard Copy

A document or data printed on paper.


The result when a spec of dust or debris adheres to the printing plate or blanket which creates a spot or imperfection on the final printed piece.

House Stock

Paper kept in stock by a printer.

Image Area

Portion of a page or paper that can be printed on. This is the sheet size minus image-restricted area; like the gripper area.


Correctly arranging printed pages in a press sheet layout so they will fold for binding in the proper sequence.


Postal information preprinted on a mailing envelope or a piece in place of a stamp.

Ink Jet Printing

Method of printing by spraying droplets of ink through computer-controlled nozzles.

Job Number

A number assigned by us a printer to a specific printing project for use in tracking and historical record keeping. Job numbers are the primary way of referencing a job in a printing company.


The "K" in CMYK stands for key, as in four-color printing, cyan, magenta, and yellow printing plates are carefully keyed or aligned with the key line of the black key plate. Some sources also suggest that the K in CMYK comes from the last letter in "black".