Canon Kabushiki Kaisha

Takaaki Hashimoto

Toru Maeda

Hitoshi Saito

Makoto Kobayashi

Toshio Kenmochi

Shinichiro Kohri

Yukio Nohata

Naoki Sugawara

Masanori Momose

Seiji Ohmori

Masashi Kimura

Koichiro Ohtsuka

A facsimile section receives and decodes data transmitted through a communication line, converts the received data into dot image data line by line, and further performs resolution conversion of the data using a resolution converter. The data subjected to the resolution conversion is transferred to a printer section through a Centronics interface. When data of an entire line is all white, a white-skip command is transferred for that line. The printer section performs horizontal/vertical conversion of the transferred dot image data and data corresponding to the transferred white-skip command using a horizontal/-vertical converter, the converted data being stored in a scan buffer. When the scan buffer is full of the data for one scan, a recording head is driven to record an image. In an image communicating apparatus comprising the facsimile section and the printer section, the load of the control unit of the facsimile section can be diminished, and the time required for the recording can be reduced, with the above arrangement.

Image communicating apparatus

A communication device includes a storage medium for storing a program and information used to detect any error in the program, to prevent the communication device from further abnormal operation when an error occurs in the stored program. The occurrence of an error in the program is detected by performing a calculation based on the stored program, and comparing the result of the calculation with the above-described information stored in the storage medium. A predetermined operation is further performed depending on the result of the comparison.

Communication device provided with a storage medium for storing a

A communication apparatus includes a voice communication means and a data communication means. A detection means detect a signal relating to the data communication during voice communication by the voice communication means, and a control means effects data communication in accordance with the output of the detection means.

Data communication apparatus with voice communication control

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Hiratsuka, Japan

Takaaki Hashimoto