Patent · US Expired

Image forming apparatus

US7226152B2 · kind B2 · utility

0Cited by
2References
21Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJan 27, 2004
Grant dateJun 5, 2007
Priority date
Expiry dateSep 23, 2024

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB41J2/195
  • WIPO fieldTextile and paper machines
  • WIPO sectorMechanical engineering

Abstract

An image forming apparatus in which ink depletion detection accuracy will not be deteriorated even if an air bubble is created in an ink supplying path. The image forming apparatus is provided with (a) an ink storage section for storing ink therein, (b) an ink supplying path for supplying, to a print head, the ink stored in the ink storage section, and (c) an electrode for detecting whether the ink is present or absent in the ink supplying path, an amount of the ink supplied into the ink supplying path being 1.0 cc or less per minute.

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