18455523. IMAGE FORMING APPARATUS simplified abstract (CANON KABUSHIKI KAISHA)

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IMAGE FORMING APPARATUS

Organization Name

CANON KABUSHIKI KAISHA

Inventor(s)

KO Katahira of Kanagawa (JP)

MOTOYASU Muramatsu of Shizuoka (JP)

IMAGE FORMING APPARATUS - A simplified explanation of the abstract

This abstract first appeared for US patent application 18455523 titled 'IMAGE FORMING APPARATUS

Simplified Explanation

The abstract describes an image forming apparatus with a fixing unit and an apparatus main body. The fixing unit includes a heating unit, a pressure roller, cam members, and a pressure force release unit. The pressure force release unit switches the position of the heating unit between applying pressure force to a fixing nip portion and reducing or releasing the pressure force. The apparatus main body has doors that contain the fixing unit, with cam members rotating with the open and close of the doors.

  • Fixing unit with heating unit, pressure roller, cam members, and pressure force release unit
  • Apparatus main body with doors containing fixing unit
  • Pressure force release unit switches position of heating unit to apply or reduce pressure force
  • Cam members rotate with open and close of doors

Potential Applications

  • Printing industry
  • Office equipment
  • Manufacturing sector

Problems Solved

  • Ensures proper fixing of images
  • Prevents overheating of fixing unit
  • Facilitates maintenance and repair of apparatus

Benefits

  • Consistent image quality
  • Energy efficiency
  • Easy maintenance and operation


Original Abstract Submitted

An image forming apparatus includes a fixing unit and an apparatus main body. The fixing unit includes a heating unit, a pressure roller, first and second cam members, and a pressure force release unit. The pressure force release unit switches a position of the heating unit between a first position at which a predetermined pressure force is applied from the pressure roller to a fixing nip portion, and a second position at which the applied predetermined pressure force is reduced or released. The apparatus main body includes first and second doors that are opened and closed and contain the fixing unit. The first cam member rotates with an open and close of the first door, and the second cam member rotates with an open and close of the second door. A rotational center of the second cam member is arranged coaxially with a rotational center of the first cam member.