LESSON 3
PHOTOGRAPHIC FINISHING EQUIPMENT
SCOPE
In this lesson we will talk about the photographic equipment that is
used for the last steps in the photographic process. This includes the
drying of processed film, washing of photographic (newly developed) prints,
and drying of the washed photographic prints. We will cover ONLY the
equipment operation and operator's maintenance of each piece of equipment.
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SECTION 1
PHOTOGRAPHIC PRINT WASHER, EK1
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a. General. Washer EK1 is designed to wash photographic prints for
the purpose of removing the fixing solution. A constant flow of water,
aided by a rotating cylinder (figure 31), circulates the prints to provide
constant agitation. The machine is equipped with manually regulated inlet
and outlet valves to adjust the rate of water flow and displacement.
b. The overall dimensions of the washer are 23" x 36" x 35".
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Component Parts of Washer EK1 (figure 31)
Washer EK1 consists of the following major components: frame,
cylinder (drum), tank, transmission, motor, and cylinder lift.
a. Washer frame (figure 31). The frame, together with the four legs
which are bolted to it, provides support for the motor, transmission,
cylinder lift units, cylinder, and tank.
b. Cylinder (figure 31). The cylinder is a perforated stainless steel
drum which holds the prints during washing. It has a hinged door with door
locks for convenient loading and unloading. An index pin, located on each
lift channel, holds the cylinder in position when it is raised and the door
turned upward. Attached to each end of the cylinder is a stub shaft that
rests in the rubber bearing of the lift channel to
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