Ricoh Company, Ltd.

Masahiro Yamamoto

Shigeyuki Araki

Goro Mori

Masami Miyajima

Takamasa Hayashi

Toshitaka Senma

Takundo Isobe

Masaru Takahashi

An image forming apparatus which forms an image on a recording medium at a number of different dot densities. The image forming apparatus includes a light source part for emitting a light beam, a light detection part for detecting a light beam from the light detection part detecting a light beam from the light source part and for supplying a signal indicative of a power of the detected light beam when a monitored voltage obtained by the light beam is approximately equal to a reference voltage, a memory part for storing a number of power data corresponding to the number of different dot densities, an input part for inputting a first dot density selected, a power data control part for supplying a signal indicative of a changed power data which is changed from a value of said power of the detected light beam with a power data stored in the memory means which is located by the selected first dot density, and a driving part for operating the light source with the signal from the power data control part allowing the light source to emit a light beam with the changed power, the changed power being appropriate for forming an image on the recording medium at the selected first dot density.

Image forming apparatus with plural dot densities

Growing community of inventors

Hino, Japan

Masahiro Yamamoto