Device and method for controlling pressure in binding media

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 6526878
APP PUB NO 20030024409A1
SERIAL NO

09921133

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A media binding device is operable to apply pressure on a plurality of media sheets, while applying heat to melt adhesive provided between the sheets of media. The media binding device may be implemented in conjunction with an image forming device, e.g., printer, facsimile machine, photocopier, etc. More specifically, the media binding device may be implemented in a position generally at an output end of the image forming device, following a collating or stacking of the printed media. The media binding device applies a predetermined amount of pressure on the plurality of media sheets. In this respect, the media binding device operates to apply a gradually increasing amount of pressure onto the media sheets until a predetermined amount of pressure is reached. The predetermined pressure is applied on the media sheets by shutting off the current flowing into a motor operating the media binding device when a predetermined current level is reached. By virtue of the fact that the amount of current flowing into the motor is substantially proportional to the amount of torque produced by the motor, the amount of torque, and thus, the amount of pressure on the media sheets, may consequently be controlled by controlling the amount of current supplied to the motor.

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First Claim

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Patent Owner(s)

  • HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ruiz, Israel Cruz Jalisco, ME 5 19

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