Sharp Kabushiki Kaisha Corporation

Tadashi Okada

Yoshiteru Mori

Takashi Nakagawa

Shinichi Takeda

Yoshikado Yamada

Toshihisa Matsuo

Atsushi Narukawa

Junichi Kajiwara

Hideo Taniguchi

Masashi Toyoda

Yoshiyuki Noda

Takao Fukuda

Katsutoshi Ishikawa

Tuyoshi Higaki

Noriyuki Hoshiai

To provide an image processing apparatus that can reduce power consumption as compared to a conventional case by energizing required minimum devices at an appropriate timing depending on contents of a request received from an external apparatus through a communicating medium during a power-saving state, if a data processing request is received from the external apparatus through a NIC during a sleep mode, an MPU of the NIC and an MPU of each controlling unit control automatic changeover switches, which switch energization states of sub-power sources, to control energization of each function block based on contents of the data processing request and the state of the own apparatus. When switching the function blocks from a 'non-energized state' to an 'energized state', a hierarchical energization controlling process is performed to switch the functional blocks with hierarchical relationships to the &#x201c;energized state&#x201d; in the order from higher to lower blocks.

Image processing apparatus with energization control

The invention is capable of displaying to an operator a guidance for performing an accurate operation in accordance with a state of a copying machine, and at the same time the invention does not require a huge volume memory and a processor for analyzing data in the portable terminal device with the result that the cost can be reduced and the device of the invention can be reduced in size. The portable terminal device is provided for the display and input reception of the maintenance control data in such a manner the portable terminal device can be connected to the copying machine. The maintenance control data is transmitted and received to and from the host computer and the portable terminal device via the copying machine.

Apparatus and method for maintaining and controlling electronic

An image forming apparatus comprising rotatable cassettes rotated by cassette rotating means between a longitudinal feeding station from which paper is fed in a longitudinal direction thereof and a lateral feeding station from which paper is fed in a lateral direction thereof, wherein memory means stores a cassette rotation signal, when the cassette rotation signal is entered therein and cassette rotating means is controlled in accordance with the cassette rotation signal stored in the memory means when a cassette rotation permission signal for permitting the rotation of the rotatable cassette is generated, so that the rotatable cassette is set in a predetermined feeding station. The invention also provides an image forming apparatus capable of storing the feeding station of the rotatable cassette in the memory means and rotating the rotatable cassette to the feeding station stored in the memory means when the rotatable cassette is out of both longitudinal feeding station and lateral feeding station. Further, the invention provides an imagae forming apparatus capable of selecting a desired cassette from a plurality of cassettes and instructing to rotate the rotatable cassette by depressing a minimum number of operation keys. The invention further provides an image forming apparatus wherein the rotatable cassette is taken out therefrom by setting the rotatable cassette in either of the longitudinal feeding station and the lateral feeding station, characterized in that the rotatable cassette is set in the feeding station specified as a rotatable cassette taking-out/insertion position each time an image formation is completed.

Image forming apparatus

Growing community of inventors

Nara, Japan

Tadashi Okada