JPS5962171A - Printer - Google Patents

Abstract

PURPOSE:To absorb vibrations generated from a printing head and a motor, thereby reduce noise and prevent printing quality from being lowered, by using a composite ferrite elastic material as a material for shafts guiding a carrier for the printing head. CONSTITUTION:The guide shafts 3, 4 for guiding the carrier 2 in a spacing direction are constituted of a composite ferrite elastic material. The carrier 2 is trasversely moved in synchronism with a wire-impacting action of the printing head 1, and the vibration arising from the wire-impacting action is absorbed by the guide shafts 3, 4 to prevent the vibration from propagating to a frame 5. Vibrations arising from a spacing motor 10 and a line feed motor 11 are also absorbed by the shafts 3, 4, so that the vibrations are not transmitted to the carrier 2 of the printing head 1.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a printer device widely used as an input/output device in an information processing device.

Conventionally, this type of printer device uses iron or aluminum material as the guide shaft of the carrier on which the print head is mounted. Kanakura then propagates to the entire frame system.

(2) Vibrations generated during the operation of a motor such as a head feed motor, line feed motor, or ink ribbon feed motor fixed to the frame system are propagated to the print head via the frame and the guide shaft.

(3) The vibrations in items (1) and (2) above are superimposed and synthesized to become an extremely complex high-order vibration source, causing resonance and resonance phenomena in the entire frame structure, resulting in deterioration of print quality and noise. This is leading to an increase in the level.

The purpose of the present invention is to suppress the propagation of vibrations between the vibrations generated by the print head and the vibrations generated by the motors, and to suppress the transmission of vibrations between the vibrations generated by the print head and the vibrations generated by the motors. By using a ferrite composite elastic material whose vibration absorption effect is approximately 100 times greater than that of conventional iron and aluminum, we provide a printer device that eliminates the above drawbacks and achieves improved printing quality and reduced noise. It's about doing.

The present invention is characterized in that, in a serial impact printer device in which characters are formed by moving a print head in the horizontal direction, a shaft made of a ferrite composite elastic body is provided as a guide for a carrier on which the print head is mounted. It is something.

Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a perspective view showing an embodiment of a printer device according to the present invention. This embodiment includes a print head 1, a carrier 2 on which the print head 1 is mounted and fixed, guide shafts 3 and 4 made of a ferrite composite elastic body that guide the carrier 2 in the spacing direction, and guide shafts 3 and 4 made of a ferrite composite elastic body. a frame 5 for supporting and fixing the guide shafts 3 and 4; and a spacing belt, one end of which is fastened to the carrier 2 and the other end fastened to the other end of the carrier 2 via a motor pulley 6 and an idler pulley 7. 8, and a spacing motor lO fixed to the frame 5 via a placket 9;
A line feed motor 11, which is also fixed to the frame 5, a gouge 2 that fits on the output shaft of the line feed motor 11, a pin platen 14 that feeds the printing paper 13, and a pin platen 14 that fits on the same axis as this pin platen 14. The line feed belt 16 is fitted onto the pulley 15 and the pulley 12.

The carrier 2 receives the driving force of the spacing motor 10 via the motor pulley 6 and the spacing belt 8, and moves laterally in synchronization with the wire impact of the print head 1. Since it is composed of a ferrite composite elastic body, vibrations caused by wire impact are absorbed here and do not propagate to the frame 5. Vibrations generated by the spacing motor 10 and line feed motor 11 are also absorbed by the guide shafts 3 and 4, and therefore do not propagate to the carrier 2 and print head 1.

As explained above, the present invention uses a ferrite composite elastic body on the shaft that guides the carrier of the print head, thereby absorbing vibrations generated from the print head and the motor.

Since the vibration is suppressed, it is possible to reduce noise caused by resonance, which has been a problem in the past, and to prevent deterioration of print quality due to resonance of the print head itself, which has a tremendous effect.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing an embodiment of the printer device of the present invention. 1...Print head, 2...Carrier,
3, 4...Guide shaft, 5...Frame,
6...Motor pulley, 7...Idle fu-! J, 8... Spacing belt, 9...
... Bracket, 10 ... Spacing motor, 11 ... Line feed motor, 12.
...Pulley, 13...Printing paper, 14.
...Pin platen, 15...Boo 1ha
16...Line feed belt. Dye 10

Claims (1)

[Claims] A serial impact printer device in which characters are formed by moving a print head in the horizontal direction, characterized in that a shaft made of a ferrite composite elastic body is provided as a guide for a carrier on which the print head is mounted.