Fujitsu Component Limited

Taichi Sakakura

Hiroyuki Kataoka

Katsuhisa Beniya

A printer includes a transport part that transports a sheet, a printing part that prints on the sheet, a cutting part that cuts the sheet by moving a movable blade toward a stationary blade, and a controller that controls the transport part and the cutting part. When the sheet is label paper having an adhesive layer, the controller controls the transport part and the cutting part to transport the sheet rearward before moving the movable blade that cut the sheet, move the movable blade in a direction away from the stationary blade in a state where the sheet is fed in rearward, and thereafter transport the sheet frontward.

Printer

A pulse motor driving circuit includes a first switch having a terminal connected with a positive terminal of a power source; a second switch having a terminal connected with a negative terminal of the power source; and a capacitor having another terminal connected with positive terminal of the power source and having another terminal of the first switch and another terminal of the second switch. The second switch is a transistor, and is capable of limiting a current flowing from the power source to the capacitor. The first switch is turned on and the second switch is turned off in a current application start period while the current starts to be applied to a pulse motor phase excitation part for exciting the pulse motor. The first switch is turned off and the second switch is turned on in a period other than the current application start period.

Pulse motor driving circuit and method of driving a pulse motor

A pulse motor driving circuit for driving a pulse motor includes a first switch having a terminal that is connected with a positive terminal of a power source; a second switch having a terminal that is connected with a negative terminal of the power source; and a capacitor having a terminal connected with a limit element and having another terminal connected with another terminal of the first switch and another terminal of the second switch, wherein the limit element is provided between the positive terminal and the capacitor and limits a current, wherein the first switch is turned on and the second switch is turned off in a current application start period while the current starts to be applied, wherein the first switch is turned off and the second switch is turned on in a period other than the current application start period.

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Tokyo, Japan

Taichi Sakakura