| 摘要 |
PURPOSE:To prevent misaction in supplying power, by supplying power to the driver of an image reproducing apparatus, after resetting the control output of a microcomputer. CONSTITUTION:When a power supply switch 101 is turned on, voltage is fed to a power supply circuit through a transformer 102, but voltage VAA is not fed to a driving power supply because transistors 105, 106 are turned off. On the other side, a controlling power supply circuit provides voltage VCC to MCOM 112, i.e., a controller. This resets output termials OP1-OP6 for producing the control signal of each driver, and then resets an output terminal OP7, thus permitting TR105, 106 to be turned on, the voltage VAA to be fed to the driver, the driving voltage to be fed to the driver after resetting the external terminals OP1-OP6 of MCOM112, so misaction in supplying power to be prevented. |
