KaVo ORTHOPANTOMOGRAPH OP 3D Pro, Service Manual, Page: 94 / 192

4 Firmware description
86
Idle state
The unit is waiting for an examination to be started by the
driver. The service state can be entered during this state
The unit will enter the error state if a system error occurs.
Select (program select) state
The unit initializes the selected program and enters the
ready state when system is ready to take an exposure. If
the examination is ended, the unit will return to the idle
state. The unit will enter the error state if a system error
occurs.
Ready state
The unit is waiting for the exposure button to be pressed.
Once it notices that the button has been pressed the
exposure state is entered.
If the exposure program is changed when the unit is in the
ready state, the unit will revert to the select state. The unit
will enter the error state if a system error occurs.
Exposure state
The unit carries out the selected exposure program and,
when completed, proceeds to the transfer (image transfer)
state.
The exposure button is monitored during the exposure.
Rotation and sensor movements are also monitored. If a
fatal error occurs and no image has been captured the unit
will enter the error state. If an image has been captured the
unit will enter the transfer state and transfer the image to
PC and then enter the error state.
Transfer (image transfer) state
The unit waits for the image transfer to be completed. Any
calibration actions are handled if the exposure program
was a calibration program.
The exposure counter is updated.
After the driver has received the image it releases it.
It makes sure that exposure button is released and after it
has been the unit returns to the select state.