Dainippon Screen Mfg. Co., Ltd.

Hiroshi Nomoto

Yoshio Shimizu

Takahide Hirawa

Touru Kawata

A device supporting assembly includes a pair of heat sinks , a pair of support plates arranged at opposite sides of the heat sinks each for supporting eight semiconductor lasers through a base , Peltier elements arranged between the heat sinks and support plates , and thermistors for measuring the temperature of the bases . The pair of heat sinks have numerous fins in the form of comb teeth defining numerous openings acting as air passages between an air inlet and an air outlet. Exhaust fans are arranged at outlet ends of the openings.

Device supporting apparatus

An image quality on a recording material is influenced by, for example, the sensitivity of a developer for use in developing the recording material. Compensating for the lowering of the sensitivity of the developer requires increasing the amount of emission of a laser beam. However, there is a difference in the amount of change between dimensions, in a main scanning direction and in a sub-scanning direction, of a dot blackened depending on the increase in the amount of emission of the laser beam. Increasing or decreasing the time duration of emission of the laser beam by a predetermined amount achieves adjustment of the dimension of the dot in the main scanning direction. Specifically, there is provided a memory for storing therein the sensitivity of the developer, the amount of emission of the laser beam and the time duration of emission of the laser beam in corresponding relation to each other, and the emission from a laser light source is adjusted by reading the amount and time duration of emission corresponding to the sensitivity of the developer from the memory.

Image recorder and method of recording image

A punching transport apparatus attached to an end surface a cylindrical inner surface drum includes two transport units which are connected with a pulse motor, two belts, and two pulleys so as to be able to move in synchronism to each other. The two transport units are linked to two punching units through linkage blocks. Transport carriers of the transport units are threadingly engaged with ball screws which are linked to the pulleys so that the transport carriers are loosely fitted to guide rails. Receiving an input signal which is entered in accordance with a plate edge distance which is determined by the specifications of a printer, a controller drives the pulse motor under the control of a pulse count. As a result, from an origin position which is determined in accordance with a condition which is detected by an origin sensor, the two transport units and the two punching units move in a central axis direction X.

Punching apparatus and punching method for cylindrical inner surface

A photosensitive material is mounted onto an inner surface of a cylindrical inner surface drum. An input signal which provides the size of the photosensitive material is supplied to a controller. As the controller drives a pulse motor under the control of a control signal, a moving part with which punching units are connected is moved in a circumferential direction of the drum by means of the pulse motor and positioned at the desired positions for punching. Then only two punching units, determined by the controller in accordance with the size of the photosensitive material, are driven to punch holes in the photosensitive material.

Growing community of inventors

Kyoto, Japan

Hiroshi Nomoto