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DEVELOPER TEMPERATURE CORRECTION
8. Developer Temperature Correction
Perform the following adjustment procedure whenever there is any difference between the value
of the DEV Temp. Setting Volume on the temperature control board and the actual developer
solution temperature in the developing tank.
q Make sure that the Power Breaker is OFF and set the DEV Temperature Setting Volume to 34:.
w Switch the Power Breaker ON and press the RUN button.
e Measure the voltage between TP15 and TP14 (GND) on the CPU Board. Turn the Standard
Voltage Output Control Volume (VR5/VS3) on the temperature control board so that the
voltage measures 5.0V±0.01V.
r Wait for five minutes after the READY lamp comes ON and then measure the temperature of
the solution in the developer tank.
t Perform the following calculation, turn the DEV Temp Output Correction Volume (VR4/VS1) on the
temperature control to adjust the voltage between TP12 and TP14 (GND) by the calculated result.
EXAMPLE :
When the temperature of the developer in the tank is 34.5:. The correction value is :
(34.5–34.0) x 0.14 (fixed value) =0.07V
The voltage should therefore be increased by 0.07.
DRY Temp Output
Control Volume VR2/VS2
DRY Temp Sensor
Connector JJ17
DRY Temp Setting
Volume VR9
DEV Temp output
Control Volume
VR4/VS1
DEV Temp Sensor
Connector JJ16
DEV Temp setting
Volume VR7
Reference
Voltage Output
Control Volume
VR5/VS3
Temperature Control Section on CPU Board
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SERVICE MANUAL