NovaJet 800 Series Service Manual

Figure 4-85. Main PWA Humidity Sensor.

The Dryer Mode: (cccccccc) indicates the current dryer setting. Opera- tional modes are “OFF”, “ON”, “AUTO”, or “DISABLED”. Plenum T. and MBoard T. (main-board T.) indicate temperature and are displayed in degrees C. MBoard H. (main-board humidity) indicates the ambient relative humidity as a percentage.

If the dryer mode is set to “AUTO” and the firmware times-out trying to read the MBoard T. or the MBoard H., a “*” character will appear after Dryer Mode: ON to indicate that the dryer mode was automatically switched from “AUTO” to “ON”.

The power supply fan is turned on immediately upon menu selection. One of its jobs is to feed ambient air into the main board chamber where the sensors reside. The main-board sensors require several minutes (approxi- mately 5) of this of exposure to the ambient air before they can adjust to room conditions. If the printer has been turned off or has been idle for several minutes, validation for sensor accuracy must be made after this adjustment period has elapsed.

Information on this display is updated once every five seconds. Please wait for this time period to elapse before evaluating test results. If the

Troubleshooting 4-82

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Kodak 800 SERIES service manual Main PWA Humidity Sensor