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Figure 12-7B.Top view of Pako BC 24 roll paper printer
Chapter 13 Motion Media

Photography (Basic) - Introduction to photography and other graphic techniques
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Figure 12-9.–Keyboard of a Noritsu Model 1001 print processor. Minilabs   have   a   microprocessor   that   stores information put in by a programmer. The information is retrieved   through   channels.   The   channels   are programmed for different film manufacturers, ISOs, negative  sizes,  print  sizes,  and  paper  combinations.  The various  information  combinations  that  are  stored  in these channels are used to print production negatives; for example, a 35mm Kodacolor negative to a 4x5 print is printed on one channel, and 35mm Fujicolor negative to a 5x7 print is printed on another. By programming different negative and print combinations into separate channels,  you  are  able  to  produce  production  prints which have good density and color balance from the automatic printer. You can also fine-tune the density and color  by  using  the  keyboard. Color correcting on a minilab is less complicated than on an enlarger. The keyboard of the printer contains yellow,  cyan,  magenta,  and  density  keys.  These  keys range  in  value  so  you  can  make  minor  or  major adjustments. When the density of the print is off, density can be either added or subtracted. When a production print  has  too  much  cyan,  yellow,  or  magenta,  these colors are subtracted. When the print has too much red, green, or blue, the complement of these colors is added. 302.266 After  the  prints  are  exposed,  the  paper  is  fed automatically into the processing section of the minilab. The processing section contains chemical tanks and a dryer section. Each tank has a roller assembly rack that transports  the  print  through  the  processor.  Minilabs require no plumbing or drains because they use a washless process, such as KodakRA-4 chemistry. When Kodak RA-4 chemistry is used, the total processing time is completed in about 4 1/2 minutes. The setting up and programming of automated printers can be complicated. You are expected to be a printer operator only. Programming the channels, density,  and  color  balance  of  automated  printers  should be  left  to  the  more  experienced  imaging  facility personnel. While  automated  printers  are  very  useful  in controlling a high influx of production, there are disadvantages in their use. Not all imaging facilities have the space required to support automated printers. Cropping is very restricted, and dodging and burning cannot  be  performed.  Like  all  machines,  automated printers  require  maintenance.  They  also  must  be programmed accurately to function the way they are designed.  Without  the  support  and  expertise  of knowledgeable  personnel,  normal  projection  printing may  be  preferred. 12-17







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