Patent · US Expired

Image forming device, print cartridge and doctor blade assembly that reduce vibrations at doctoring media nip

US6990308B1 · kind B1 · utility

1Cited by
12References
18Claims
0Family size

Assignee

Inventors

Key dates

Filing dateDec 14, 2004
Grant dateJan 24, 2006
Priority date
Expiry dateDec 14, 2024

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG03G2215/0866
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

A doctor blade assembly (121) for an image forming device such as a laser printer (100) includes a bracket (622) to which foam (640) is attached providing improved tolerances in the nip formed between the assembly (121) and the doctoring media. The assembly (121) includes a lip (625) which extends under the foam (640) to help secure the foam (640) and reduce the amount of adhesive required to keep the foam (640) attached. The bracket (622) is stamped from a single piece of metal providing a doctor blade assembly (121) with high stiffness that is cost effective to manufacture.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.