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Printing apparatus, print head performance recovery device and method, and piston pump

A recording device and recording head technology, applied in printing devices, printing, etc., can solve problems such as complex driving methods

Inactive Publication Date: 2004-12-01
CANON KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in order to reciprocate the piston shaft 626, the reciprocating rotation of the cam 8 is required, and it is also necessary to control the amount of this rotation, and there is a problem that the driving method tends to become complicated.

Method used

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  • Printing apparatus, print head performance recovery device and method, and piston pump
  • Printing apparatus, print head performance recovery device and method, and piston pump
  • Printing apparatus, print head performance recovery device and method, and piston pump

Examples

Experimental program
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Embodiment Construction

[0093] Embodiments of the present invention will be described below with reference to the drawings.

[0094] figure 1 It is a perspective view of the entirety of the recording device of this embodiment with the outer cover removed. The recording operation mechanism of the recording device of this example is roughly composed of an automatic paper feeding unit 100 , a transport unit 200 , a discharge unit 300 , a recording unit 400 , and a recovery unit 600 . The automatic paper feeder 100 automatically feeds a recording sheet as a recording medium to the conveyance unit 200 in the main body of the apparatus. The conveyance unit 200 guides the recording sheets conveyed one by one from the automatic paper feeder 100 to a desired recording device, and discharges the recording sheets from the recording position. The discharge unit 300 is located on the downstream side in the transport direction of the transport unit 200 . The recording unit 400 performs desired recording on the...

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PUM

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Abstract

This invention provides a small and simple construction to drive a mechanism for maintaining a printing performance of a print head. In one preferred mode of the invention, a recovery device to maintain the printing performance of the print head has a suction pump unit, a capping unit and a wiping unit. The suction pump unit is driven through a spring clutch mechanism by an LF motor in the print sheet transport unit as a drive source. The capping unit and the wiping unit are driven by an AP motor as a drive source in a rotary dead zone set for a paper feed unit that feeds the print sheet to a transport unit.

Description

technical field [0001] The present invention relates to a recording device for recording an image including characters or the like using a recording head on a recording medium such as recording paper conveyed, and more specifically relates to a drive as a recovery operation for maintaining the recordability of the recording head. The source also serves as a recording device that is a driving source for conveyance of a recording medium or the like. [0002] Also, the present invention relates to a piston pump in which a piston is reciprocated by a rotational driving force, and particularly relates to a piston pump suitable for recovery processing for maintaining the function of a recording head in a recording device requiring miniaturization and portability. Background technique [0003] In recent years, with the spread of personal computers or word processors and facsimile machines and the like in offices and the like, various types of recording devices are provided as infor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41J2/175B41J11/00B41J23/02
CPCB41J23/025B41J2/17596
Inventor 吉田正仁下山升平井康行
Owner CANON KK