Air knife system with pressure sensor
First Claim
Patent Images
1. A fusing assembly comprising:
- a fuser member which, during operation, contacts a sheet of print media to fuse a marking material to the sheet; and
a stripping apparatus which applies gas to the sheet to assist in detaching the sheet from the fuser member, the stripping apparatus including a fluid pathway which connects an associated source of pressurized gas with at least one orifice adjacent the fuser member, and a pressure sensor which senses a pressure of the gas in the fluid pathway intermediate the source and the at least one orifice during operation of the fuser member.
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Abstract
A fusing assembly includes a fuser member, such as a rotatable fuser roll which, during operation, contacts a sheet of print media to fuse a marking material to the sheet. A stripping apparatus applies gas to the sheet to assist in detaching the sheet from the fuser roll. The stripping apparatus includes a fluid pathway which connects an associated source of pressurized gas with at least one orifice adjacent the fuser roll. A pressure sensor senses a pressure of the gas in the fluid pathway intermediate the source and the at least one orifice during operation of the fuser roll.
38 Citations
22 Claims
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1. A fusing assembly comprising:
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a fuser member which, during operation, contacts a sheet of print media to fuse a marking material to the sheet; and a stripping apparatus which applies gas to the sheet to assist in detaching the sheet from the fuser member, the stripping apparatus including a fluid pathway which connects an associated source of pressurized gas with at least one orifice adjacent the fuser member, and a pressure sensor which senses a pressure of the gas in the fluid pathway intermediate the source and the at least one orifice during operation of the fuser member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 16)
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15. A method comprising:
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contacting a sheet of print media with a fuser member to fuse a marking material to the sheet; and applying gas toward the sheet to assist in detaching the sheet from the fuser member; and sensing a pressure of the gas being applied toward the sheet. - View Dependent Claims (17, 18, 19, 20, 21)
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22. A fusing assembly comprising a fuser and a stripping apparatus, the stripping apparatus comprising:
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a pneumatic airflow system including at least one valve which is selectively actuated to deliver a pulse of air to orifices positioned adjacent the fuser; a sensor in communication with the airflow system intermediate the at least one valve and the orifices, the sensor generating signals in response to pressure changes in the airflow system; and a control system which receives the signals from the sensor and determines whether a fault condition exists in the fusing assembly based on the signals.
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Specification