CHAPTER 2 STANDARDS AND ADJUSTMENTS
2-60
9. Checking the Environment Sensor
9.1 Procedure
Check the environment sensor using the environment sensor tool to see that it operates
normally.
1) Make the following selections in service mode, and obtain the following data:
COPIER>DISPLAY>ANALOG.
Data A
TEMP: machine inside temperature (°C) data A1
HUM: machine inside humidity (%) data A2
2) Press the Reset key twice, and turn off the main power switch.
3) Remove the environment sensor, and attach the environment sensor tool (FY9-3014).
4) Turn on the main power switch, and level the machine alone for 5 min.
5) Make the following selections in service mode, and obtain the following data:
COPIER>DISPLAY>ANALOG.
Data B
TEMP: machine inside temperature (°C) data B1
HUM: machine inside humidity (%) data B2
6) Compare data A and data B; if the difference is not as indicated, replace the environment
sensor.
• difference between data A1 and data B1: 0±5
• difference between data A2 and data B2: 0±20
7) Press the Reset key twice, and turn off the main power switch.
8) Detach the environment sensor tool, and attach the environment sensor.
The environment sensor tool (FY9-3014) is adjusted at the factory to high
precision. Be sure to store it in an air-tight container with a drying agent.
9.2 Emergency Measure for a Fault in the Environment Sensor
If the environment sensor has gone out of order, the machine may be used by entering hu-
midity data in the following service mode item; keep in mind, however that this is no more
than a temporary measure used until replacement of the environment sensor:
1. COPIER>OPTION>TEMPO>F-HUM-SW
Enter ‘1’ if the environment senor has gone out of order.
2. COPIER>OPTION>TEMPO>F-HUM-D
The above service mode item must be set to ‘1’.
Enter the humidity of the site of installation (between 30% and 99%; default, 35%)
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