| 摘要 |
PURPOSE: To improve the degree of freedom in layout and to facilitate the change of control by changing the control, without exchanging a ROM. CONSTITUTION: This image forming device is provided with plural units 201-209 obtained in such a manner that devices and members in a machine are classified by function, to be constituted as one control unit, plural unit control boards 201a to 209a which are provided in the units 201 to 209 respectively and take charge of the control of the corresponding units and a control program transmission equipment 210 for transmitting a previously stored control program to the respective unit control boards 201a to 209a. Each of the unit control boards 201a to 209a is provided with an operation control CPU (not shown by the figure) for taking charge of the control of the corresponding unit, an EEPROM (not shown by the figure) for storing the control program and a communication port and a communication control CPU (not shown by the figure) for multiplex communication for a signal between unit control means. The control program from the control program transmission equipment 210 is transmitted to the EEPROM of each of the unit control boards 201a to 209a, to be stored. |
