PhototypesettersIntroductionPhototypesetting machines expose photosensitive paper or film to a lightimage of each character set, either electromechanically or by digitation(cathode-ray tube (CRT)). The two primary components of a phototypesetterare a keyboard and a processor. Because of rapidly changing technology,this section provides only a brief overview of phototypesetting systems.GeneralBefore covering phototypesetting theory and equipment, let’s cover basicmaintenancemaintenance procedures for the equipment and the handling of the film/paper.Avoid excessive handling of the film/paper to minimize scraping thesensitized surface, kinking, and increasing static discharge.Check the internal mechanism of the processor for:obstructions in the film/paper path andthe solution level of the processor tanks.Rinse the roller assembly and trays daily with warm water and loosencrystallized chemical deposits with a soft brush.Clean optical surfaces with a lint-free cloth or chamois and mirroredsurfaces with a camel hair brush.Refer to the owner’s manual for specific maintenance periodicities,GeneralWith most typesetting equipment, it is possible to adjust type size, type font,adjustmentsline length, letter density, word, line, and lettering spacing, type position,and leading. Some typesetters are further divided by their ability to producedisplay type or body type. Direct keyboard, magnetic storage on tape ordisk, and a retrieval system through optical character recognition (OCR) areavailable on newer machines. Refer to your owner’s manual for the fullrange of operator adjustments.Continued on next page4-17
Integrated Publishing, Inc. - A (SDVOSB) Service Disabled Veteran Owned Small Business
