Patent · US Expired

Recording method and apparatus maintaining constant density by anticipating temperature changes in the recording head

US5633671A · kind A · utility

13Cited by
8References
45Claims
0Family size

Assignee

Inventor

Key dates

Filing dateJan 2, 1996
Grant dateMay 27, 1997
Priority date
Expiry dateJan 2, 2016

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB41J2/3555
  • WIPO fieldTextile and paper machines
  • WIPO sectorMechanical engineering

Abstract

A recording apparatus includes a heat generating element which is driven to generate heat and thereby effect image recording on a recording medium. In the apparatus, a reference voltage for driving the heat generating element is set, and a driving voltage based on the reference voltage is output. A signal is detected which corresponds to an amount of electric power supplied to the heat generating element during image recording. A control unit controls the outputting of the driving voltage based on the amount of electric power, and adjusts the energy to be applied to the heat generating element.

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