| 摘要 |
PURPOSE:To surely fix a toner image without decreasing the CPM (the number of copying sheets per minute) and to easily execute sequential control by controlling the sticking amount of toner complied with the mode of copying such as a color mode, a black-and-white mode and an OHP mode. CONSTITUTION:A ROM 302 housing a program for control, a RAM 303 storing a control value for operating the respective parts of a copying machine and a copying mode being currently set and an input/output interface (I/O) are connected to a CPU 301 for executing the various kinds of processing for a whole device according to a previously set program. The respective outputs of exposure, electrostatic charge, development bias and a transfer charger are sent from the CPU 301 through the I/O 304 and the exposure output, etc., is adjusted so that the sticking amount of toner is decreased when an OHP (overhead projector) mode is designated. Consequently, the toner image is surely fixed without lowering CPM and sequential control is easily performed. |
