Supplemental

• Examine photographic images for obvious imperfections prior to plate making.
• Operate presses to print proofs of plates, monitoring printing quality to ensure that it is adequate.
• Examine unexposed photographic plates to detect flaws or foreign particles prior to printing.
• Examine finished plates to detect flaws, verify conformity with master plates, and measure dot sizes and centers, using light boxes and microscopes.
• Perform close alignment or registration of double and single flats to sensitized plates prior to exposure to produce composite images.
• Inspect developed film for specified results and quality, using magnifying glasses and scopes, forwarding acceptable negatives or positives to other workers or to customers.
• Punch holes in light-sensitive plates and insert pins in holes to prepare plates for contact with positive or negative film.
• Mount negatives and plates in cameras, set exposure controls, and expose plates to light through negatives to transfer images onto plates.
• Operate and maintain a variety of cameras and equipment, such as process, line, halftone, and color separation cameras, enlargers, electronic scanners, and contact equipment.
• Perform tests to determine lengths of exposures, by exposing plates, scanning line copy, and comparing exposures to tone range scales.
• Mix solutions such as developing solutions and colored coating solutions.
• Activate scanners to produce positive or negative films for the black-and-white, cyan, yellow, and magenta separations from each original copy.
• Select proper types of plates according to press run lengths.
• Analyze originals to evaluate color density, gradation highlights, middle tones, and shadows, using densitometers and knowledge of light and color.
• Set scanners to specific color densities, sizes, screen rulings, and exposure adjustments, using scanner keyboards or computers.
• Perform minor deletions, additions, or corrections to completed plates, on or off printing presses, using tusche, printing ink, erasers, and needles.
• Arrange and mount typeset material and illustrations into paste-ups for printing reproduction, based on artists' or editors' layouts.
• Scale copy for reductions and enlargements, using proportion wheels.