SECTION 4
217 Controls (figure 214)
Control
Function
Carriage locking knob
Locks carriage assembly in position on girder
assembly.
Control lever
Forward position: raises lamp house assembly.
Rear position: lowers lamp house assembly.
Control lever stop
Locks control lever in forward (raise) position.
Diaphragm ring
Sets lens opening between f/4.5 and f/32.
Focusing wheel
Varies distance of projection lens from film to
control focus.
Handwheel
Varies distance of carriage assembly from
sensitized paper to control size of
enlargement.
ONOFF switch
ON position: applies power to printer.
(figure 23)
OFF position: removes power from printer.
163
Previous Page
