# B24 TEMP/HUM. SENSOR

#Overview

Check that the temperature and humidity sensors are operating normally.

#Criteria

• 0°C or higher to 60°C or lower
  Operating normal if environmental temp/hum. are displayed.
• 0°C or lower
  Broken cable or connection failure of the temperature and humidity sensor cables.
• 60°C or higher
  The temperature and humidity sensor is broken or its cable has been short-circuited.

#Work Procedure

1. Start the printer in the service mode.

   • Service mode startup

2. Select “B24 Temp/hum. Sensor” refer to “How to select an Adjustment item”.

   • HOW TO SELECT AN ADJUSTMENT ITEM

3. Check the output values (A) of the temperature and humidity sensors and confirm whether or not they are normal.

4. Touch the temperature sensor and check that there is a change to the output value.

5. If no good, check the connection state of the temperature and humidity sensors. If there is a problem, replace the temperature and humidity sensors with new one.