Handling roller

Abstract

This invention provides a carrying roller capable of easily achieving high carrying precision over a long period. A number of micro-protrusions have two kinds of the higher micro-protrusions with a height ranging from 0.02 to 0.2 mm and the lower micro-protrusions with a height ranging from 0.008 to 0.15 mm. Top parts of the lower micro-protrusions are formed flat.

Description

technical field [0001] The present invention relates to a conveying roller, in particular to a conveying roller suitable for conveying various recording media, especially recording media used for information recording. Background technique [0002] In recent years, recording devices capable of recording information such as images and videos on recording media include dot printers such as electronic copiers, facsimile machines, laser printers, thermal printers, and inkjet printers. In such a recording device, in order to transport a recording medium for recording information as a recording medium to a necessary position, it is necessary to provide a transport mechanism having a transport device capable of transporting the recording medium. As the conveying device, a conveying roller is often used because of its simple structure and low cost. In addition, as the conveying roller, a metal roller made of metal is often used because of its excellent durability and good roundness...

AI Technical Summary

Problems solved by technology

[0007] However, the problem existing in the above-mentioned conventional conveying roller 1 is that the contact pressure of the crimping roller 6 is uneven and the type of recording medium 7 will cause different conveying accuracy.

[0010] Also, as a conventional conveying roller, although a structure having high micro-protrusions and low micro-protrusions with two heights of micro-protrusions has been proposed, in this case, the front ends of the two height micro-protrusions are respectively formed into pointed shapes. Two kinds of microscopic protrusions are respectively embedded in the surface of the recording medium, resulting in differences in conveying accuracy due to uneven contact pressure and different types of recording media.

Images