Paper cooling apparatus for an electrophotographic printer
First Claim
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1. A paper stacking and cooling apparatus for an electrophotographic printer in which toner is printed on extending surfaces of paper and fused thereon to form printing comprising:
- means for folding the printed fused paper so the printed surfaces are stacked horizontally imbricating the sheets, wherein said folding means includes a paper guide for the folded paper, said guide being slidable horizontally; and
means for blowing cooling air between said adjacent folded horizontal surfaces, said blowing means including a duct having a horizontally elongated rectangular outlet opening adjacent the stack of folder paper and an inlet opening and a blower attached to said inlet opening for supplying cooling air thereto, and wherein said duct is mounted to said guide.
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Abstract
An electrophotographic printer in which toner is printed and fused and the paper thereafter folded and stacked. To avoid toner stick a blower blows cooling air between adjacent folded sheets. The blower may be mounted on a horizotnally slidable paper guide. The stacker table may be lowered so that the top of the stack is maintained at the same height or the blower may be moved vertically in response to the output of a sensor detecting the top of the folded stack.
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Citations
5 Claims
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1. A paper stacking and cooling apparatus for an electrophotographic printer in which toner is printed on extending surfaces of paper and fused thereon to form printing comprising:
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means for folding the printed fused paper so the printed surfaces are stacked horizontally imbricating the sheets, wherein said folding means includes a paper guide for the folded paper, said guide being slidable horizontally; and means for blowing cooling air between said adjacent folded horizontal surfaces, said blowing means including a duct having a horizontally elongated rectangular outlet opening adjacent the stack of folder paper and an inlet opening and a blower attached to said inlet opening for supplying cooling air thereto, and wherein said duct is mounted to said guide. - View Dependent Claims (2)
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3. A paper stacking and cooling apparatus for an electrophotographic printer in which toner is presented on extending surfaces of paper and fused thereon to form printing comprising:
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means for folding the printed fused paper so the printed surfaces are stacked horizontally imbricating the sheets, wherein said folding means includes a paper guide for the folded paper; and means for blowing cooling air between said adjacent folded horizontal surfaces, said blowing means including a duct having a horizontally elongated rectangular outlet opening adjacent the stack of folded paper and an inlet opening and a blower attached to said inlet opening for supplying cooling air, and wherein said blowing means further includes means for detecting the position of the top of the folded stack, and means for moving said duct and blower vertically along said paper guide in response to the output of said sensor.
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4. A paper cooling apparatus for an electrophotographic printer in which toner is printed on extending surfaces and folded with the extending surfaces extending horizontally and with adjacent surfaces in contact, and said printer having a horizontally slidable paper guide comprising:
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means for directing cooling air to the folded paper so that the air passes between said adjacent surfaces to cool the paper and prevent toner stick; and means for mounting said cooling apparatus to said electrophotographic printer, said mounting means including means for mounting to said guide of said printer.
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5. A paper cooling apparatus for an electrophotographic printer in which toner is printed on extending surfaces and folded with the extending surfaces extending horizontally and with adjacent surfaces in contact, and said printer having a horizontally slidable paper guide comprising:
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means for directing cooling air to the folded paper so that the air passes between said adjacent surfaces to cool the paper and prevent toner stick, wherein said directing means includes a duct having a horizontally elongated rectangular opening adjacent the stack of folded papers and an inlet opening and a blower attached to said inlet opening for supplying cooling air thereto; means for mounting said cooling apparatus to said electrophotographic printer, said mounting means including means for mounting to said guide of said printer; and means for detecting the position of the top of the folded stack, and means for moving said duct and blower vertically along said slidable guide in response to the output of said sensor.
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Specification