Supply roller bearing support for ink-jet printer

Abstract

A feeding roller shaft supporter for an ink-jet printer having a feeding roller shaft, including a main chassis which forms a frame of an ink-jet printer; a first supporting unit in the main chassis supporting opposite ends of the feeding roller shaft; a driving member provided at a first end of the feeding roller shaft; an axial position correction unit mounted on the feeding roller shaft close to the driving member, correcting an axial position of the feeding roller shaft; and a second supporting unit supporting the feeding roller shaft, wherein the second supporting unit is provided on a second end of the feeding roller shaft, preventing the shaking of the feeding roller shaft caused by thrust when the feeding roller shaft rotates.

Description

technical field [0001] The present invention relates to an inkjet printer, and more particularly to a supply roller support for an inkjet printer in which a supply roller for supplying printing paper is rotatably supported in the inkjet printer. Background technique [0002] A supply roller for an inkjet printer arranges the supply of printing paper contained in a paper supply tray in an image forming section within the printer. When the printer is driven, the supply roller sleeve receives power from a separate power source to rotate. In this case, it is usually not possible to obtain a suitable printing effect, because the printing deformation will occur when the supply roller shaft vibrates. Therefore, implementation considerations need to be taken into account when designing and constructing the feed roll support. Also, as the resolution of an inkjet printer increases, even small vibrations can have a detrimental effect on the print result. Therefore, careful design of...

AI Technical Summary

Problems solved by technology

[0007] However, the supply roller support of the general inkjet printer has such a problem that because the supply roller 20 is simply supported at opposite ends by the first and second stationary members 11 and 12, the thrust generated when the supply roller 20 rotates makes the Supply roller shaft 20 vibration

In addition, the supply roller bracket has such a problem that the accuracy of the gear additionally provides a cause for the vibration of the supply roller shaft 20, because the drive gear 22 is in close contact with the first support unit 21, which is located close to the first support unit 21.

When the supply roller shaft vibrates axially like this, it will cause printing deformation, so it will be difficult to perform high-density printing

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