Facsimile apparatus with ink cartridge and residual ink detection function
US5822076A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 1, 1996 |
| Grant date | Oct 13, 1998 |
| Priority date | — |
| Expiry date | Oct 1, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/32379
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A facsimile apparatus which prints a received image using ink, and which can perform residual-ink detection and verification of detection result with simple construction. The apparatus judges whether or not the ink is exhausted, based on a detected pulse width from a photosensor for determining existence/absence of the ink. If the result of the residual-ink detection is not reliable, the apparatus examines again the detected pulse from the photosensor when actual ink discharge operation is not performed. If the result of the re-examination is different from an expected result, the apparatus notifies a message indicating an occurrence of abnormality on an LCD.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.