发明名称 Electrostatic copying apparatus
摘要 In a reciprocating scan system, movement is stopped for a predetermined length of time between a scan stroke and a return stroke to prevent erroneous imaging of a photoconductive drum (12) which would result in unnecessary loading of a cleaning unit (26) and formation of a partial reversed image in addition to a desired image on a copy sheet (23). Control circuitry (61) may be provided to cause the stopping operation only when the magnification is less than unity or when the length of the copy sheet (23) in the scan direction is longer than the corresponding image length.
申请公布号 US4324485(A) 申请公布日期 1982.04.13
申请号 US19790087902 申请日期 1979.10.24
申请人 RICOH COMPANY, LTD. 发明人 ASAKURA, KOUICHI;OKAMOTO, TOYOO
分类号 G03B27/50;G03G15/30;G03G21/14;(IPC1-7):G03G15/28;G03B27/72 主分类号 G03B27/50
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