The top cover of the processor must be in place during warm-up.
Do not use a mercury thermometer. It may break and contaminate the
(g) If the dryer has not reached temperature, check that you have
plugged in the dryer. Refer to paragraph (6), below.
(h) If the film switch is activated, it is possible, though not likely, that
the film switch is stuck. Check for free movement of the switch. If the switch does not
activate the drive system when pressed, refer to sections 1-4c(2), Check the film switch
activation, and 1-4c(3), Check the transport timing.
(5) Check the jog function. When the processor is on but not processing
film, the jog timer counts. It starts as soon as the cycle timer completes its count, and
counts for 3 minutes. After each 3 minute interval, the jog timer activates the drive
motor and wash solenoid for 9 seconds. In the low volume mode, the replenisher pump
also activates for 9 seconds. The jog sequence repeats continually as long as you do
not feed film into the processor.
(6) Check the temperature control. A single 1500 watt heater heats the
developer and fix. It is located in a tube under the developer and fix tanks on the left
side of the processor. The dryer has two 750 watt coil heaters which heat air directed to
the film surfaces by blowers and air ducts. Both the developer and dryer heaters are
controlled in the same way. Set the desired temperature on the temperature control
dials inside the front panel. Temperature probes in the bottom of the developer tank
and in the dryer air duct feed back the actual temperature. A temperature controller
signals two triac switches, one for the developer heater and one for the two dryer
heaters. The triacs switch line voltage to the heaters.
(a) Check the actual temperatures against the dial settings.
(b) Check the amp draw of the developer and dryer heating elements.
Refer to figure 1-16. For warm-up, when you first turn on the power, the controller
switches full power to the developer heater only. You can check this by observing the
leds on PC board J3. This indicates when a heat signal is being sent to a triac. DS1
indicates developer heat, DS2 indicates dryer heat. Refer to figure 1-16.
(c) When the temperature of the developer is within 1F (0.6C) of the
dial setting, the controller begins switching power to the dryer. Under power, the dryer
blower turns on and DS2 on PC board J3 begins to blink. DS1 and DS2 alternately
blink, indicating that the developer is close to the set point temperature. It also indicates
the dryer is being brought up to the set point temperature.