| 摘要 |
PURPOSE:To unnecessitate peripheral parts dedicated to a nonvolatile memory and to prevent the annihilation of history information caused by forgetting work without causing an extra work by equipping the nonvolatile memory on reliable parts in a main body. CONSTITUTION:The nonvolatile memory 1, for example, is directly attached and equipped on a mother board 9. The mother board 9, to which a power source is supplied from a power source unit 10, supplies the power source to a control substrate 6 and option substrates 14 and 15 and also it is an unchangeable part which takes the part of signal repeating between the control substrate 6 and the option substrates 14 and 15, between the control substrate 6 and respective units 11 and an operation display part 13, etc. The nonvolatile memory 1 which stores the history information etc., of an image forming device is equipped on the reliable unexchangeable part 9 in the image forming device main body. Special parts are not necessitated in order to equip the nonvolatile memory and the history information such as the change of parts can be surely maintained without causing the extra work at the time of repairing on service. |
