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Paper feeder of printer

A technology for a paper feeding device and a printer, which is applied to the printing device, printing and other directions, can solve the problem that the opening/closing action of the pinch roller is not fully automatic, and achieves suppression of enlargement and cost increase, rapid printing action, The effect of preventing skew

Inactive Publication Date: 2006-01-04
STAR MICRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the opening action of the pinch drum is performed manually, the opening / closing action of the pinch drum is not fully automatic, which causes dissatisfaction among users at this point.

Method used

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  • Paper feeder of printer
  • Paper feeder of printer
  • Paper feeder of printer

Examples

Experimental program
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Embodiment Construction

[0028] Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

[0029] figure 1 Shows the whole state of the dot-pension printer 1 according to one embodiment in a state where the packaging components are removed, and the numeral 10 in the figure indicates that the bottom plate 11, the left side wall 12, the right side wall 13, and the back plate 14 are integrally formed. frame. A drum-shaped platen 20 is rotatably supported on the left and right side walls 12 and 13 via a platen shaft 21 , and a bracket support 30 parallel to the platen shaft 21 is supported on the platen shaft 21 . the rear of the reel 20.

[0030] The bracket 31 is supported on the bracket support 30 along the bracket support 30 to reciprocate freely. A print head 32 with needles is placed on the carriage 31 , and further, paper clips 33 are installed on both sides of the print head 32 . The carriage 31 is driven by a belt-driven drive mechanism. This driv...

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PUM

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Abstract

The invention realizes to lead the opening / closing motions of an impacted roller to be automatized without using a special drive unit and prevents deflexion through closing the impacted roller under a state that a bracket is centered. A clutch gear is arranged on a gear set used for transmitting the power of a paper feeding motor to an impacted operation rod to open and close the impacted roller. The clutch gear utilizes a handspike unit pressed on the bracket moving to the outside of an imprinting area to move along with the axial direction. The clutch gear is arranged on a disconnected position by the action of an offsetting spring usually. But if using the push rod unit to push and press, the clutch gear is then connected with a fifth middle gear. A convex edge is blocked on the clutch gear by the rotation of the fifth middle gear to maintain the clutch connection state of transmitting the power of the paper feeding motor to the impacted operation rod. The opening / closing motions of the impacted roller are carried out under the station of maintaining the connection of the clutch. If the fifth middle gear rotates, then the clutch is changed into an off-state.

Description

technical field [0001] The present invention relates to a paper feeding device that uses a pinch roller to press the paper onto the platen and conveys it in a printer that prints on paper wound on the platen, and particularly relates to the mechanism of the pinch roller. Improvement of the opening / closing drive mechanism. Background technique [0002] This type of printer prints on paper wound on the platen with a print head mounted on a carriage that moves parallel to the axial direction of the platen, but generally has a pinch roller as a A part that compresses the paper so that the paper fits tightly against the platen. This pinch roller is mounted freely rotatable on the rocking end of the pinch lever. The pinch lever is supported so that it can swing freely. is held in the open position withdrawn from the platen, and, if the paper is wound on the platen, held in the closed position pressing the paper against the platen. [0003] In existing printers, the structure is...

Claims

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Application Information

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IPC IPC(8): B41J11/42B41J13/08B41J15/04B41J11/00
Inventor 樱井英利
Owner STAR MICRONICS
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