Printing Glossary – Terms starting with J

Jacket	Or dust jacket. The paper cover sometimes called the “dust cover” of a hardbound book.
Job Lot Paper	Paper that didn’t meet specifications when produced, has been discontinued, or for other reasons is no longer considered first quality
Job Number	A number assigned to a specific printing project in a printing company for use in tracking and historical record keeping
Job Ticket	Form used by service bureaus, separators and printers to specify production schedule of a job and the materials it needs. Also called docket, production order and work order
Jog	To vibrate a stack of finished pages so that they are tightly aligned for final trimming or binding.
Jogger	A vibration machine with a slopping platform to even-up stacks of printed materials
Justification	Adjusting the spacing or hyphenation of words and characters to fill a given line of text from end to end. Sometimes referred to as word spacing.

Jacket