Canon CLC5000 Service Manual page 416

14) Press the Reset key.
15) Turn off the power switch.
16) Connect J1 of the environment measurement PCB.
17) Remove the environment measurement sensor from the environment measurement PCB,
and insert the environment sensor.
18) Install all covers.
b. Checking the Environment Sensor
1) Check the environment PCB.
2) Turn on the power switch, and leave it on for 5 min.
3) Start service mode, and select 'DISPLAY'.
4) Check the temperature and humidity on the ANALOG screen.
BODY °C ....... data A1
BODY % ........ data A2
5) Press the Reset key, and turn off the power switch.
6) Remove the environment sensor from the environment measurement PCB, and insert the
sensor for the environment sensor (TKN-0456) in its place.
7) Turn on the service switch, and leave it on for 5 min.
8) Start service mode, and select 'DISPLAY'.
9) Check the temperature and humidity on the ANALOG screen.
(data B)
BODY °C ....... data B1
BODY % ........ data B2
10) Compare data A and data B
• The difference between data A1 and data B1 is 0 ±5.
• The difference between data A and data B is 0 ±20.
If the difference is outside the specification, replace the environment sensor.
11) Press the Reset key, and turn off the power switch.
12) Remove the sensor for the environment sensor from the environment measurement PCB,
and insert the environment sensor.
13) Install all covers.
The sensor for the environment sensor (TKN-0456) is adjusted with high
precision at the factory. Keep it in a sealed case with a drying agent.
COPYRIGHT © 2001 CANON INC.
CHAPTER 5 TROUBLESHOOTING IMAGE FAULTS/MALFUNCTIONS
2000 2000 2000 2000 CANON CLC5000 REV.0 JAN. 2001
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