| 摘要 |
PURPOSE:To always obtain a print output with high quality by providing a print density designation means and a means setting the operating condition of a photosensitive body through the designation of the said means. CONSTITUTION:A high voltage power supply circuit HVS1 26 uses a signal S1 so as to revise the quantity of charge given uniformly to the photosensitive drum 9 while switching a generating voltage. A circuit HVS2 receives a signal S2 to vary a bias voltage fed to a development sleeve. A circuit HVS3 receives a signal S3 to vary corona discharge quantity to transfer a development agent onto transfer paper. A device 29 receives a signal S4 to vary a temperature fixing thermally the development agent onto the transfer paper. A controller 30 receives a dot density request DCNG to output the signals S1-S4 thereby setting various conditions such as charging/development /transfer/fixing to optimum values. Thus, a print output with high quality is always obtained. |
