Abstract: A receipt printer, a control method for a receipt printer, and a program whereby producing counterfeit printout is not possible. A receipt printer 20 has a storage unit 61 that stores encrypted information obtained by encrypting registered information, a specific information acquisition unit 62 that acquires specific information from a POS terminal 10, a comparison unit 63 that compares the specific information with the registered information decrypted from the encrypted information, a printing permission unit 64 the permits printing when the comparison unit 63 confirms a data match, and a printing unit 65 that prints when printing is permitted by the printing permission unit 64.

Abstract: A receipt printer, a control method for a receipt printer, and a program whereby producing counterfeit printout is not possible. A receipt printer 20 has a storage unit 61 that stores encrypted information obtained by encrypting registered information, a specific information acquisition unit 62 that acquires specific information from a POS terminal 10, a comparison unit 63 that compares the specific information with the registered information decrypted from the encrypted information, a printing permission unit 64 the permits printing when the comparison unit 63 confirms a data match, and a printing unit 65 that prints when printing is permitted by the printing permission unit 64.

Abstract: A method and system are provided for a receipt printing device that produces receipts. Encrypted data is necessary to produce the receipt to prevent forgery of the receipt. The encrypted data based on information, which can be transaction information, received from a POS terminal. The encrypted data will be printed on the receipt only when determined to be necessary.

Abstract: A serial printer is disclosed in which a serial printer body is connected to a carriage via a cable. The carriage is driven by electric power supplied through the cable, and signals are also transmitted between the serial printer body and the carriage through the cable. The cable comprises a sheet-like substrate and a plurality of conductive strips which are formed on the sheet-like substrate and which extend in a longitudinal direction of the sheet-like substrate. The plurality of conductive strips includes at least one wide conductive strip for supplying the electric power and at least one narrow conductive strip for transmitting the signals. The wide and narrow conductive strips are arranged such that noise created by the electric power supplied by the wide conductive strip does not interfere with the signals transmitted in the narrow conductive strip.

Abstract: A printer including an impact dot print head for driving a plurality of print wires mounted on the cantilevered end of print levers is provided. The print head includes a stopper positioned to be impacted by a print lever returning from a print position to an at rest position before a plunger on the lever impacts the magnetic core. A spring mounted on the lever biases it towards the print position. Magnetic flux of a permanent magnet attracts the plunger to the non-print position. An electromagnetic coil is energized to cancel the magnetic attraction of the plunger to the core to drive the wire towards the print position.

Abstract: A printer including an impact dot print head for driving a plurality of print wires mounted on the cantilevered end of print levers is provided. The print head includes a stopper positioned to be impacted by a print lever returning from a print position to an at rest position before a plunger on the lever impacts the magnetic core. A spring mounted on the lever biases it towards the print position. Magnetic flux of a permanent magnet attracts the plunger to the non-print position. An electromagnetic coil is energized to cancel the magnetic attraction of the plunger to the core to drive the wire towards the print position.

Abstract: A printing head for a wire dot printer includes a plurality of printing levers connected to a corresponding plurality of printing wires. A plurality of guide holes are operable for guiding the distal ends of the printing wires beyond a nose of the printing head. Each guide hole corresponds to one of the plurality of printing levers. As viewed from the nose of the printing head, each printing lever extends radially from its corresponding guide hole and the inner ends of the printing levers form a zig-zag pattern. A plurality of plate springs provides the resilient force to push the printing levers and thereby the printing wires toward the nose of the printing head. A spacer for supporting the plate springs equalizes the effective length of each plate spring.