Abstract: An image communication apparatus includes a reader for reading an original image, a communication unit including an NCU for transmitting and receiving image data through a subscriber line, a recorder for recording the image read by the reader and the image data received by the communication unit on recording paper, a CPU for controlling an overall operation of the image communication apparatus, and contacts for connecting a detachable auxiliary or external device so that the CPU has an auxiliary function of the image communication apparatus.

Abstract: A facsimile apparatus comprises a communication unit for conducting data communication through a public line, and a changing unit for changing a transmission level of a signal transmitted by the communication unit to the line.

Abstract: An image communication apparatus has a read unit for reading a document sheet image and a battery power supply. The read unit has a voltage conversion unit for converting power supplied directly from the battery power supply. Other units, such as a recording head and a motor drive unit, may also receive power directly from the battery. A modified thermal head design is used to provide response equal to that obtainable with a higher-voltage supply.

Abstract: A compact facsimile apparatus has at least a minimum function required for a facsimile apparatus. The apparatus is used in either a connected state or a non-connected state with respect to a functional expansion unit including a functional expansion section for expanding the function or adding another function, a power supply section for supplying power to the compact facsimile apparatus, and a set portion serving as a mounting base for the compact facsimile apparatus. The used state of the facsimile apparatus can be properly set to be used either as a small, lightweight, compact facsimile apparatus or as a stationary type compact facsimile apparatus.

Abstract: A data communication apparatus includes connection means for electrically connecting a detachable network control unit which is an interface for connecting a communication line and control means for controlling the network control unit through the connection means.

Abstract: A facsimile apparatus selectively uses a cut recording sheet or a roll-like recording sheet. The facsimile apparatus has a housing, constituting the outer surface of the apparatus. An original reading section is provided for conveying an original between a first opening portion, formed in a front portion of the upper surface of the housing, and a front surface opening portion, formed in a front surface of the housing. A recording section is provided for inserting a recording sheet through a second opening portion, formed in the upper surface of the housing at a position closer to the rear side than the first opening portion and for discharging the recording sheet through the first opening portion. A roll-like sheet holder supplies a roll-like recording sheet from a rear portion of the housing.

Abstract: A facsimile apparatus comprises a housing constituting the outer surface of the facsimile apparatus, an original reading section for conveying an original between a first opening portion formed in a front portion of the upper surface of the housing and a front surface opening portion formed in the front surface of the housing, and a recording section for inserting a recording sheet through a second opening portion formed in the upper surface of the housing at a position closer to the rear side than the first opening portion and for discharging the recording sheet through the first opening portion. A cut sheet can be inserted/discharged through each opening portion. Since the first opening portion is commonly used for both an original and a recording sheet, the depth of the housing can be reduced. In addition, the housing can be designed to be flat and compact so as to be easily carried.