发明名称 AUTOMATIC DENSITY ADJUSTING DEVICE FOR ELECTROPHOTOGRAPHIC COPYING MACHINE
摘要 PROBLEM TO BE SOLVED: To provide an automatic density adjusting device in an electrophotographic copying machine capable of changing a density table easily, when a proper copy is not obtained by an automatic density adjustment or a user requests a preferable density copy, so as to make the proper copy desired by the user only with the automatic density adjustment, after the change. SOLUTION: Copying is executed with a copying condition set by the automatic density adjustment (steps S1-S3) and the user visually decides whether the density of the obtained copy is proper or not (step S4). When the density of the obtained copy is improper, the copying condition set by the turning on of a density table changing switch is stored (steps S5 and S6). Then, copying with the copying condition set by a manual density adjustment is repeated until the proper density is obtained and the copying condition set whenever copying is executed is stored (steps S7-S11).
申请公布号 JPH1031330(A) 申请公布日期 1998.02.03
申请号 JP19960202814 申请日期 1996.07.15
申请人 CANON INC 发明人 ISHIHARA NORIYUKI;SHIOZAWA MOTOHIDE
分类号 G03G15/00;G03G21/00 主分类号 G03G15/00
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