Recording-material type determination apparatus and method and image forming apparatus
US6801727B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 9, 2003 |
| Grant date | Oct 5, 2004 |
| Priority date | — |
| Expiry date | Apr 9, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/00751
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
To provide a recording-material type determination apparatus and recording-material type determination method which can determine the type of recording material using simple calculations as well as to provide an image forming apparatus capable of obtaining stable image quality independent of the type of recording material using the apparatus and method.Based on data read by a read unit which reads surface images of recording material, a first calculation unit calculates the depth of irregularities in the surface of recording material and stores the results of calculation in a register A while a second calculation unit calculates the spacing of irregularities on the surface of the recording material and stores the results of calculation in a register B. Based on the values in the registers A and B, the type of recording material such as gloss paper, plain paper, rough paper or OHT is determined.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.