Patent ID: 7694028
Filing Date: 2010-04-06
Classification: H04N

Abstract:
1. A multi function device, comprising: a main board configured to control functions corresponding to a model of the multi function device, one of the functions including a printing function; a sub board configured to be connected with the main board, the sub board carrying out peripheral control corresponding to the model of the multi function device; a function information storage configured to store function information enabling a combination of the main board and sub board corresponding to the model of the multi function device to function appropriately for each model of the multi function device; a first circuit configured to output information to identify a type of the main board; a second circuit configured to output a voltage corresponding to the main board; a voltage reading system configured to read the voltage outputted by the second circuit as an analog-to-digital (A/D) value; a model identifying system configured to identify the model of the multi function device based on the A/D value and the type of the main board identified, wherein the model identifying system identifies the model of the multi function device when the multi function device is powered on; a panel board configured to send model identification information; a judging unit configured to judge whether the model identified by the model identifying system coincides with the model identification information sent by the panel board, and further configured to transmit an error signal when the model identified by the model identifying system does not coincide with the model identification information sent by the panel board; a function information obtaining system that obtains function information from the function information storage corresponding to the model identified by the model identifying system in response to the judging unit judging that the model identified by the model identifying system matches the model identification information received from the panel board; and a function control system that controls the main board and the sub board of the identified model of the multi function device to correctly function based on the function information obtained by the function information obtaining system.