Color image forming device

Abstract

To provide a color image forming device that is capable of reducing the power consumption and unnecessary consumption of toners without deteriorating the productivity of a printing job. Provided is a color image forming device which includes a power control part 150 which controls switching of a mode from a normal power supply mode to a power saving mode when a power-saving shift time T 1 or T 2 has passed during a standby state; a printing mode switching part 101 f for switching a single-color printing mode and a full-color printing mode; and an initial printing mode setting part 101 g for setting an initial printing mode at the time of supplying a power source to one of the printing modes, wherein a different power-saving shift time T 1 or T 2 is set depending on the printing mode that is initially set by the initial printing mode setting part 101 g.

Description

technical field [0001] The present invention relates to a color image forming apparatus, and more particularly, to a color image forming apparatus capable of reducing power consumption without reducing the productivity of printing work. Background technique [0002] Conventionally, an image forming apparatus has been proposed which forms an electrostatic latent image by irradiating a modulated light beam on the surface of a uniformly charged image carrier based on output image data, develops the formed electrostatic latent image to form a toner image, and The toner image transferred onto the recording paper is thermally fixed. [0003] In recent years, color image forming apparatuses which sequentially form electrostatic latent images corresponding to the respective color components of cyan, magenta, yellow, and black on a photoreceptor, and which are toned by the corresponding colors have been popularized. Toner images of various color components are formed, and the toner ...

AI Technical Summary

Problems solved by technology

[0005] That is, the above-mentioned color image forming apparatus has a problem that, since the temperature difference between the first fixing temperature and the second fixing temperature needs to be increased, when the full-color printing mode is selected, it is different from selecting the monochrome printing mode. It takes more time to heat up the fuser than when it was used, so the printing process is delayed accordingly, resulting in not only a decrease in productivity but also an increase in power consumption

[0012] Therefore, it is also considered to increase the probability that a print job can be executed without calibration by uniformly setting a longer transition time to the power saving mode that reduces the productivity of the print job when returning to the normal mode. However, at this time, there is a problem that the power consumption during the standby process before the print job is requested will increase

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