Seiko Epson Corporation

Jinichi Takizawa

Hironori Endo

Toshihisa Saruta

Hiroaki Tojo

A printer, a printer control method and control program, a POS terminal device, and a cash drawer drive device detect when a non-standard cash drawer is connected, and prevents a non-recoverable overcurrent protection device from operating (such as a fuse blowing) by preventing an overcurrent from flowing to the cash drawer. A printerthat can be connected to and drive a cash drawerhas a cash drawer drive circuit unitthat supplies drive current for driving a lock release coilto open/close the cash drawer, a coil resistance detection unitthat detects the resistance of the lock release coil, and a drive switching unitthat connects the cash drawer drive circuit unitor connects the coil resistance detection unitto the lock release coil

Printer, cash drawer drive device, control method for a cash drawer drive device, and a control program

A printing apparatus of the present invention includes a print head having a plurality of nozzles, from which ink droplets are ejected, a light detection unit that has a light emitting element and a light receiving element and determines the active or inactive state of the nozzles based on whether or not the light beam is intercepted by ink droplets, and a carriage that moves the print head relative to the light detection unit. The light beam emitted from the light emitting element has an optical axis that is inclined at a predetermined angle to a nozzle array. At least part of the plurality of nozzles are inspected while the print head is moving relative to the light detection unit at a fixed speed.

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Suwa, Japan

Jinichi Takizawa