发明名称 |
Image forming apparatus and method for efficiently forming images even after the occurrence of a jam |
摘要 |
An apparatus for forming images on at least one surface of a sheet includes a reader for reading image information on documents, a memory for storing image signals output by the reader, and an image forming unit for selectively forming one of: (i) two page toner images corresponding to the image signals of two pages of the documents separately on two image carrying members, and (ii) a single toner image on one of the two image carrying members. A jam detector detects a jammed sheet, and a delivery detector detects delivery of a copied sheet to outside the apparatus. Image signals are eliminated from memory in accordance with a progression of image formation. If the jam detector detects the occurrence of the jammed sheet, a control unit prohibits the memory from eliminating the image signals until the delivery detector detects a next sheet delivered from the apparatus, so that the selected image expected to be formed by the image forming unit on the jammed sheet may be properly formed on a following sheet based on the image signals retained in the memory. A selector is provided for selecting one of a both-surface copy mode and a single-surface copy mode, wherein the control unit controls the memory to store the image signals corresponding to two pages of the documents when the both-surface copy mode is selected and to store the image signals corresponding to the single page of the documents when the single-surface copy mode is selected.
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申请公布号 |
US5920744(A) |
申请公布日期 |
1999.07.06 |
申请号 |
US19970988467 |
申请日期 |
1997.12.10 |
申请人 |
KONICA CORPORATION |
发明人 |
MATSUBARA, AKITOSHI;FUKUCHI, MASAKAZU;IKEDA, TADAYOSHI;HANEDA, SATOSHI;SHIGETA, KUNIO;SATO, YOTARO |
分类号 |
G03G21/00;G03G15/00;G03G15/23;H04N1/00;H04N1/32;(IPC1-7):G03G15/00 |
主分类号 |
G03G21/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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