Abstract: A sheet cassette configured to store a recording sheet and connectable to a printer includes a battery, a storage, a communication terminal, and an electrode terminal. The storage is configured to store information. The sheet cassette is configured to perform communications between the sheet cassette and the printer through the communication terminal. The sheet cassette is configured to supply the electric power of the battery to the printer through the electrode terminal.

Abstract: A communication system includes an information terminal, and a printing apparatus configured to perform intergroup communication with the information terminal belonging to a group. The printing apparatus includes a printing part configured to perform printing, a data receiver configured to receive print data from the information terminal via the intergroup communication, and a print controller configured to control the printing part using the received print data.

Abstract: A cassette connectable to a printer includes a housing configured to house a recording sheet, a connector that is connected to a feed port of the printer for supplying the recording sheet to the printer, and a sensor group including sensor modules that measure a state in a space surrounded by the housing.

Abstract: A printer including a printing part which prints on a recording paper; a cutter part which cuts the recording paper; and a conveying part which includes a conveying route having a curving shape and through which the recording paper conveyed through the cutter part is conveyed; a conveying route cover which is attached to the conveying part and covers a portion of the conveying route; and a flapper which is provided at a curved portion of the conveying route, has a curved shape, and is rotatably attached to the conveying route cover so as to rotatably open or close relative to a main body of the printer, wherein the conveying route cover and the flapper are movable together so as to separate from or contact the main body.

Abstract: A printer includes a printer body (110) including a recording-paper holder (111) that holds rolled recording paper (100) and includes a holder guide (112) for guiding the recording paper (100), a platen roller (140), a print head (130) attached to the printer body (110), and a lower guide (160) that is disposed to face the holder guide (112) such that a conveying path for guiding the recording paper (100) is formed between the lower guide (160) and the holder guide (112).

Abstract: A communication system includes an information terminal, and a printing apparatus configured to perform intergroup communication with the information terminal belonging to a group. The printing apparatus includes a printing part configured to perform printing, a data receiver configured to receive print data from the information terminal via the intergroup communication, and a print controller configured to control the printing part using the received print data.

Abstract: A communication system includes an information terminal, and a printing apparatus configured to perform intergroup communication with the information terminal belonging to a group. The printing apparatus includes a printing part configured to perform printing, a data receiver configured to receive print data from the information terminal via the intergroup communication, and a print controller configured to control the printing part using the received print data.

Abstract: A printing apparatus includes a printer function part configured to print on a recording sheet, a power supply including a rechargeable battery, a charger configured to charge the rechargeable battery, and an input part configured to input information. The printer function part, the input part, the power supply, and the charger are arranged from a first end of the printing apparatus towards a second end opposite to the first end, in an order of the printer function part, the input part, the power supply, and the charger.

Abstract: A sheet cassette that accommodates a recording sheet and is connected with a printer includes a first roller contacting a feed roller of the printer, a second roller contacting a recording sheet, a first gear and a second gear attached to a shaft of the first roller, a third gear and a fourth gear attached to a single shaft, and a fifth gear attached to a shaft of the second roller, wherein the first gear independently rotates relative to the first roller and the second gear, the feed gear of the printer engages with the first gear, the first gear engages with the third gear, the fourth gear rotates together with the third gear, the fourth gear engages with the fifth gear, and the second roller is rotated by rotation of the fifth gear.

Abstract: A printer including a printing part which prints on a recording paper; a cutter part which cuts the recording paper; and a conveying part which includes a conveying route having a curving shape and through which the recording paper conveyed through the cutter part is conveyed; a conveying route cover which is attached to the conveying part and covers a portion of the conveying route; and a flapper which is provided at a curved portion of the conveying route, has a curved shape, and is rotatably attached to the conveying route cover so as to rotatably open or close relative to a main body of the printer, wherein the conveying route cover and the flapper are movable together so as to separate from or contact the main body.

Abstract: A sheet cassette connectable to a printer includes a case, a spring, a cover, and a connecting part. The case stores a recording sheet. The spring is provided on the case. The cover covers the case and the spring and slides relative to the case to expose the spring. The connecting part is attached to the case and is connectable to the printer. The spring is exposed to press a recording sheet placed on the cover toward a position at which the printer is to be located when connected to the sheet cassette.

Abstract: A printer including a printing part which prints on a recording paper; a cutter part which cuts the recording paper; and a conveying part which includes a conveying route having a curving shape and through which the recording paper conveyed through the cutter part is conveyed; a conveying route cover which is attached to the conveying part and covers a portion of the conveying route; and a flapper which is provided at a curved portion of the conveying route, has a curved shape, and is rotatably attached to the conveying route cover so as to rotatably open or close relative to a main body of the printer, wherein the conveying route cover and the flapper are movable together so as to separate from or contact the main body.

Abstract: A terminal device includes an operation part, a touching part, a communication module, and a retrieval module. The retrieval module is configured to retrieve an object displayed on a first apparatus equipped with a touch panel from the first apparatus, in response to the operation part being operated while the object is selected by the touching part.

Abstract: A sheet cassette connectable to a printer includes a storage part, a battery, and an electrode terminal. The storage part is configured to store a recording sheet. The sheet cassette is configured to supply the electric power of the battery to the printer through the electrode terminal.

Abstract: A printing apparatus having a pillar shape includes a printing mechanism, a motor, and a gear box. The printing mechanism includes a print head configured to perform printing on a recording sheet and a platen roller configured to convey the recording sheet. The gear box is configured to transmit the rotation of the motor to the platen roller. The printing mechanism, the gear box, and the motor are arranged in order from a first side of the printing apparatus toward a second side of the printing apparatus in a longitudinal direction of the printing apparatus.

Abstract: An electronic device includes a power unit that accommodates a battery; a communication unit that wirelessly communicates with an external device; and a printer unit that prints print data obtained by the communication unit on a recording paper, wherein an outer appearance of the electronic device is a cylindrical shape.

Abstract: A cassette connectable to a printer includes a housing configured to house a recording sheet, a connector that is connected to a feed port of the printer for supplying the recording sheet to the printer, and a sensor group including sensor modules that measure a state in a space surrounded by the housing.

Abstract: A terminal device includes an operation part, a touching part, a communication module, and a retrieval module. The retrieval module is configured to retrieve an object displayed on a first apparatus equipped with a touch panel from the first apparatus, in response to the operation part being operated while the object is selected by the touching part.

Abstract: A printing apparatus includes a printer, a baseplate, a jacket, and a container. The printer is configured to perform printing on a recording sheet. The baseplate holds the printer. The jacket is attached to a first surface of the baseplate, and is configured to hold an information terminal. The container is attached to a second surface of the baseplate facing away from the first surface, and is configured to store the recording sheet.

Abstract: A printer includes a print module that prints data on a recording medium, a communication module that wirelessly communicates with an information apparatus, a pressable switch, a rotatable dial knob, and a controller that sends, via the communication module to the information apparatus, information for operating the information apparatus according to operations of the switch and the dial knob.