Claims
- 1. A recording apparatus for recording a first face and a second face of a recording medium using an electrophotography process comprising;
- a development station for developing said recording medium;
- a fixing station for fixing said developed recording medium;
- a reversal station for reversing said recording medium;
- a transportation means for transporting said recording medium;
- a transportation element having a working region and arranged on a midpoint of a section of said fixing station and said reversal station; and
- a peeling element for separating said recording medium and having a working region and arranged on the midpoint of said section of said fixing station and said reversal station;
- wherein after a fixing process has been carried out on said first face of said recording medium a developing process is carried out on said second face of said recording medium; and
- wherein said transportation element and said peeling element are arranged such that at most only one of the working region of said transportation element and the working region of said peeling element exists at any one point on said recording medium.
- 2. A recording apparatus for recording a first face and a second face of a recording medium using an electrophotography process comprising:
- a development station for developing said recording medium;
- a fixing station for fixing said developed recording medium;
- a reversal station for reversing said recording medium;
- a forwarding transportation means for forwarding said recording medium;
- a returning transportation means for returning said recording medium and having a working region;
- an inverter roll having a working region and arranged on a midpoint of a section of said fixing station and said reversal station; and
- an air for separating said recording medium and having a working region and arranged on the midpoint of said section of said fixing station and said reversal station;
- wherein after a fixing process has been carried out on said first face of said recording medium a developing process is carried out on said second face of said recording medium; and
- wherein said air for separating said recording medium, said inverter roll and said returning transportation means are arranged such that at most two of the working region of said air for separating said recording medium, the working region of said inverter roll and the working region of said returning transportation means exist at any one point on said recording medium.
- 3. A recording apparatus for recording a first face and a second face of a recording medium according to claim 2, wherein at most one of the working region of said air for separating said recording medium, the working region of said invertor roll and the working region of said returning transportation means exist at any one point on said recording medium.
- 4. A recording apparatus for recording a first face and a second face of a recording medium according to claim 1, wherein only at a period from a starting of the recording apparatus to a printing finish of a predetermined number of sheets for said recording medium, after a fixing process has been carried out on said first face of said recording medium, a time for reaching said development station for developing said second face of said recording medium is maintained longer.
- 5. A recording apparatus for recording a first face and a second face of a recording medium according to claim 4, wherein a time for keeping said recording medium at said reversal station is maintained longer.
- 6. A recording apparatus for recording a first face and a second face of a recording medium using an electrophotography process comprising:
- a development station for developing said recording medium;
- a fixing station for fixing said developed recording medium;
- a reversal station for reversing said recording medium; and
- a transportation means for transporting said recording medium;
- said fixing station having a heat roll, a backup roll and a peeling element, the peeling element comprising an air flow for separating said recording medium from said heat roll according to the air flow, wherein the peeling element is provided only at a rolling-up direction of the recording medium from a side of the recording medium closest to the heat roll;
- wherein after a fixing process has been carried out on said first face of said recording medium a developing process is carried out on said second face of said recording medium; and
- wherein the air flow is blown out obliquely along a plurality of boundary layers at first against a surface wall of said heat roll to both outside directions from a central portion in an axial direction and a peripheral direction of said heat roll against a fusion sandwiched portion which is formed by said heat roll and said backup roll.
- 7. A recording apparatus for recording a first face and a second face of a recording medium according to claim 6, wherein at least two nozzle openings for blowing out the air flow are provided on the recording apparatus.
- 8. A recording apparatus for recording a first face and a second face of a recording medium according to claim 6, wherein
- the air flow is branched at said peeling element.
- 9. A recording apparatus for recording a first face and a second face of a recording medium using an electrophotography process comprising:
- a development station for developing said recording medium;
- a fixing station for fixing said developed recording medium;
- a reversal station for reversing said recording medium; and
- a transportation means for transporting said recording medium;
- said fixing station having a heat roll, a backup roll and a peeling element comprising an air flow for separating said recording medium from said heat roll according to the air flow;
- wherein after a fixing process has been carried out on said first face of said recording medium a developing process is carried out on said second face of said recording medium;
- wherein the air flow is blown out obliquely to both outside directions from a central portion of an axial direction of said heat roll against a fusion sandwiched portion which is formed by said heat roll and said backup roll; and
- wherein a blow-out finish timing of the air flow is selected before said recording medium is sandwiched by a next transportation element adjacent to said heat roll and before said recording medium is supported by said next transportation element adjacent to said heat roll.
- 10. A recording apparatus for recording a first face and a second face of a recording medium according to claim 1, wherein at least one of said transportation means and said peeling element is heated in the recording apparatus.
- 11. A recording apparatus for recording a first face and a second face of a recording medium according to claim 10, wherein said fixing station comprises a heat roll and a peeling means using the peeling element, and the peeling element is pre-heated by a remaining heat of said heat roll.
- 12. A recording apparatus for recording a first face and a second face of a recording medium according to claim 1, wherein a temperature of said recording medium in which a fixing process has been carried out on said first face of said recording medium is detected in at least one portion of the recording apparatus, a temperature of said transportation means is detected in at least one portion of the recording apparatus, a temperature of said peeling element is detected in at least one portion of the recording apparatus, said detected temperature of said recording medium is collated with at least one of said detected temperatures of said transportation means and said peeling element, and when a deviation of the difference in temperature is greater than a threshold value said recording medium is regarded as having a defect in transfer and a printing process is again carried out in the recording apparatus.
- 13. A recording apparatus for recording a first face and a second face of a recording medium using an electrophotography process comprising:
- a development station for developing said recording medium;
- a fixing station for fixing said developed recording medium;
- a reversal station for reversing said recording medium;
- a forwarding transportation means for forwarding said recording medium;
- a returning transportation means for returning said recording medium and having a working region; and
- an inverter roll having a working region and arranged on a midpoint of a section of said fixing station and said reversal station;
- said fixing station having a heat roll, a backup roll and a peeling element having a working region and for separating said recording medium from said heat roll according to an air flow;
- wherein after a fixing process has been carried out on said first face of said recording medium a developing process is carried out on said second face of said recording medium;
- wherein said peeling element, said inverter roll and said returning transportation means are arranged such that at most two of the working region of said peeling element, the working region of said inverter roll and the working region of said returning transportation means are formed at any one point on said recording medium; and
- wherein the air flow is blown out obliquely to both outside directions from a central portion of an axial direction of said heat roll against a fusion sandwiched portion which is formed by said heat roll and said backup roll.
- 14. A recording apparatus for recording a first face and a second face of a recording medium according to claim 9, wherein said air flow blow-out finish timing provides an intermittent blow-out of the air flow, wherein said air flow blow-out timing is determined by a positional relation between said transportation means and said recording medium.
Priority Claims (1)
Number |
Date |
Country |
Kind |
3-006068 |
Jan 1991 |
JPX |
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Parent Case Info
This application is a continuation of application Ser. No. 07/823,181 filed Jan. 21, 1992, now abandoned.
US Referenced Citations (8)
Foreign Referenced Citations (6)
Number |
Date |
Country |
55-111975 |
Aug 1980 |
JPX |
57-8974 |
Jun 1982 |
JPX |
57-150860 |
Jul 1982 |
JPX |
61-62087 |
Mar 1986 |
JPX |
3-81791 |
Apr 1991 |
JPX |
5-241470 |
Sep 1993 |
JPX |
Continuations (1)
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Number |
Date |
Country |
Parent |
823181 |
Jan 1992 |
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