- 专利标题： OPTICAL PRINT HEAD, IMAGE FORMING APPARATUS AND LIGHT AMOUNT CORRECTION METHOD OF OPTICAL PRINT HEAD
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申请号： US16288174申请日： 2019-02-28
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公开(公告)号： US20190199887A1公开(公告)日： 2019-06-27
- 发明人: Hiroyuki Ishikawa , Koji Tanimoto
- 申请人： KABUSHIKI KAISHA TOSHIBA , TOSHIBA TEC KABUSHIKI KAISHA
- 主分类号： H04N1/40
- IPC分类号： H04N1/40 ; G03G15/04 ; G06K15/12 ; G03G15/043 ; G06K15/02
摘要：
An optical print head comprises a first light emitting element row, a second light emitting element row, a lens array, a first drive circuit and a second drive circuit. The first light emitting element row includes the arrangement of first light emitting elements. The second light emitting element row includes second light emitting elements arranged in parallel with the first light emitting element row. The lens array concentrates light emitted by the first light emitting elements and the second light emitting elements. The first drive circuit drives each first light emitting element with an identical first current value. The second drive circuit drives each second light emitting element with an identical second current value different from the first current value.