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US 4,905,046 AGranted
Copying apparatus having means for moving the optical scanning system to a predetermined position when an abnormality is detected
AssigneeCanon Kabushiki Kaisha
InventorsHaruo Tsunoi, Naoki Okuda, Akiyoshi Kimura
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Abstract
A copying apparatus having an optical scanning system includes an upper casing that can be opened and closed and a scanning device on the upper casing for scanning an original. The scanning device includes an abnormality detector for detecting the occurrence of an abnormality during a copy operation. When an abnormality is detected by the detector, the scanning device is moved to a scanning start position.
Claims18
A copying apparatus having an optical scanning system comprising:
- a lower casing;
- an upper casing arranged to open and close relative to said lower casing;
- scanning means, arranged on said upper casing, for scanning an original;
- and
- an abnormality detector for detecting an abnormality the copying operation,
- wherein said scanning means is moved to a predetermined scanning start position of said upper casing when said abnormality detector detects an abnormality, said scanning start position being at a side opposed to an opening side of said upper casing.
3 more elements
A copying apparatus having an optical scanning system, comprising:
- a lower casing;
- an upper casing arranged to open and close relative to said lower casing;
- first and second scanning means for scanning an original, both scanning means being provided on said upper casing;
- a common driving system for moving said first and second scanning means at a predetermined speed ratio;
- a positioning member for positioning said second scanning means;
- and
- an abnormality detector means for detecting an abnormality in the copy operation,
- wherein said second scanning means is moved to a predetermined retreated position by said positioning member when said abnormality detector detects an abnormality.
5 more elements
Dependencies are inferred from the claim text.