Copying apparatus having two separate fusing stations for repeated image processing on a copy sheet
AssigneeCanon Kabushiki Kaisha
InventorWilhelm Knechtel
Life of this patent
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Abstract
Copying apparatus for repeated image processing on a copy sheet wherein an image is formed on one surface of a copy sheet, the sheet after which is directed to an image processing station so that an image may be formed on the other surface of the sheet, whereby image processing is repeatedly effected. The apparatus includes a final fixing device for finally completing the fixation of the printed sheet, and an intermediate fixing device for preliminarily effecting pre-fixation of the sheet before the sheet passes through the final fixing device.
Claims8
A both-side image formation apparatus for forming images on a front surface and a back surface of a sheet, comprising:
- image forming means for guiding the sheet fed from a sheet stacking bed to an image processing station to form an image on the front surface of the sheet, then reversing the sheet and directing the reversed sheet to said image processing station to form an image on the back surface of the sheet;
- and
- fixing means fixing the images formed on the sheet by said image processing station;
- said fixing means including means for processing the sheet on the front surface on which an image is formed at a weak fixation condition, and said fixing means further processing the sheet on the back surface on which an image is formed in addition to the front surface thereof at a stronger fixation condition than the weak fixation condition.
Dependencies are inferred from the claim text.