Web-cleaning apparatus for electrostatic printer/copier
US6453134B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 15, 2000 |
| Grant date | Sep 17, 2002 |
| Priority date | — |
| Expiry date | Dec 15, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/1661
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Apparatus for cleaning particulate material from the surface of a moving web comprises: (i) a customer-replaceable cleaning cartridge including a pair of spaced, parallel cleaning blades supported by a sump housing having a removable lid assembly with a narrow opening through which the blades project at an angle; (ii) a backup shoe assembly positioned to contact the web surface opposite the cleaning blades and provide resistance to the cleaning blades; and (iii) a bracket assembly for releasably supporting the cleaning cartridge in an operative position in which the cleaning blades contact the web surface to be cleaned and cooperate with the shoe assembly to wipe particulate material from the web. Preferably, the lid assembly comprises a lid member that supports a flexible seal blade that contacts the web surface upstream of the cleaning blades and deflects particulate material wiped from the web by the cleaning blades into the sump housing. Preferably, the lid member defines an external cavity that serves as a reservoir for receiving particles inadvertently wiped from the web by the seal blade.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.