Murata Kikai Kabushiki Kaisha

Naohiro Okada

Akinori Nishizawa

A cleaner-less type image forming machine for removing the toner accumulated in the memory removing brush, and improving the quality of the image forming onto the recording medium is provided. The image forming machine includes a photoconductive drum, a charge brush for charging the photoconductive drum, LED print head for forming an electrostatic latent image on the surface of the charged photoconductive drum, a developing roller for developing the electrostatic latent image on the surface of the photoconductive drum, a transferring roller for transferring a toner image on the photoconductive drum to a paper, a memory removing brush for removing the toner image remaining on the photoconductive drum, and a current detector for detecting current flowing through the memory removing member, wherein a cleaning sequence of the toner adhered to the memory removing member is carried out. The length of the time for carrying out the cleaning sequence is changed according to the current flowing through the memory removing member, in other words, according to the amount of toner accumulated in the memory removing member.

Cleaner-less type image forming machine

The image recording device includes a paper feed device for feeding a recording paper, a photosensitive body, a toner feeding unit, a module for forming a toner image on the photosensitive body, and a transferring roller. The photosensitive body is opposed to the transferring roller such that the recording paper fed from the paper feed unit is nipped between the photosensitive body and the transferring roller. The image recording device also includes a voltage generator for generating a voltage to be applied to the transferring roller. The voltage to be generated by the voltage generator is adjusted such that transfer of the toner image onto the paper is properly carried out. The collective resistance of the transfer roller and photosensitive body is detected and the voltage generated by the voltage generator is adjusted accordingly.

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Kyoto, Japan

Naohiro Okada