Roller driving apparatus of printer
US6188858A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 22, 1999 |
| Grant date | Feb 13, 2001 |
| Priority date | — |
| Expiry date | Oct 22, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/757
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A roller driving apparatus having a roller contacting and rotating a photo-receptor web in a printer is provided. The apparatus includes a support shaft coaxially fixed to the roller and having a coupling groove formed in an outer circumferential surface thereof in a radial direction, a rotation member inserted around the support shaft, a coupling member coupled to the rotation member to protrude and retreat with respect to an inner circumferential surface of the rotation member, and inserted in the groove of the support shaft when protruding from the inner circumferential surface of the rotation member; a spring elastically biasing the coupling member in a direction to protrude from the inner circumferential surface of the rotation member, a motor, and a power transfer unit transferring the power from the motor to the rotation member to rotate the rotation member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.