| 摘要 |
<p>PURPOSE: To obtain an image forming device capable of forming an image for monochrome or color and a monochrome image at a high speed. CONSTITUTION: Lines of arrayed light emitting elements are arrayed on the inner peripheral side of a photoreceptor drum and an image forming unit constituted in such a manner that a developing unit 11 and a transfer means 12 are arranged on the outer peripheral side is used as a unit. An image forming unit 4 constitutes a monochrome image forming mechanism 2 and further the developing means 11 of an image forming unit 5 is used for black toner and the developing means 11 of the other image forming units 6, 7 and 8 are used for color toner, to constitute a monochrome/color image forming mechanism 3. A sensor 23 detecting a paper sheet from a cassette 21 and a pawl part 25 for alternately carrying the paper sheet to the monochrome image forming mechanism 2 or the monochrome/color image forming mechanism 3 with the signal of the detection of the sensor 23 are provided.</p> |
