| 摘要 |
PURPOSE:To execute a stable electrostatic recording work, and to raise the reliability for securing a driving operation, a maintenance, an electrostatic recording quantity and a recording sheet number efficiency, by varying a recording sheet number speed in accordance with a fixing roller temperature. CONSTITUTION:In an electrostatic recording device provided with a heat roller type fixing device, a recording sheet number speed is varied in accordance with a fixing roller temperature. That is to say, a setting range of a fixing roller surface temperature is set to 170-200 deg.C, the fixing roller surface temperature is detected by a heat sensible element such as a thermocouple, a thermistor, etc., its information data is transferred to a CPU contained in the electrostatic recording device, and a recording sheet number speed is determined each time by determining a speed of a driving system such as a photosensitive drum 1, a developing device 3, a fixing device 6, an optical device 7, a feed paper device 8, etc., by the CPU, so that a correct fixation is also obtained. Also, a temperature of the fixing roller is detected, and a recording sheet number speed is varied in accordance with its temperature so that the fixing roller surface temperature does not fall below a fixation available temperature. |
