Toner dispenser
US3974944A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 15, 1974 |
| Grant date | Aug 17, 1976 |
| Priority date | — |
| Expiry date | Oct 15, 1994 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/0877
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A toner dispenser having a rotatably driven dispensing roll including a cam and cam follower for imparting an axial, vibratory component of motion to the roll. The vibratory motion inhibits agglomerated masses of toner from collecting in the vicinity of the dispensing roll. In those instances wherein the dispensing roll is grooved and the toner dispenser additionally includes a brush-like wiper for dislodging toner particles from the dispensing roll, the vibratory motion also assists in preventing toner from accumulating in the grooved areas of the roll. That tendency is, however, even more effectively counteracted by additionally including a pawl and ratchet indexing arrangement for occassionally changing the alignment between the wiper and the dispensing roll.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.