Sheet discharge mechanism and apparatus incorporating the same
AssigneeBrother Kogyo Kabushiki Kaisha
InventorsHiroyuki Kato, Yasuhito Bandai
Life of this patent
Estimating the term…
Abstract
A sheet discharge mechanism is provided which is capable of preventing improper sheet transfer. The sheet discharge mechanism includes discharge rollers for moving a recording paper sheet, and an electric discharge brush adjacent to the discharge roller. The electric discharge brush includes a plurality of filaments for removing electrostatic charge generated at the discharge rollers. The filaments of the brush also prevent the recording paper sheet from being moved in unintended directions.
Claims17
A sheet discharge mechanism arranged for preventing improper sheet transfer comprising:
- at least one discharge roller for moving a sheet member along predetermined path;
- an electric discharge brush arranged adjacent to the discharge roller but spaced from the predetermined path, the brush being provided with a plurality of filaments for removing electrostatic charge and for preventing the sheet member from being moved in an unintended direction;
- and
- a rotary shaft for carrying the discharge roller fixed thereto,
- wherein the filaments are divided into a first group corresponding in position to the discharge roller and a second group corresponding in position to an exposed portion of the shaft, the filaments of the first group being shorter than the filaments of the second group.
A printer for printing on sheets comprising:
- a sheet feed mechanism for feeding each sheet;
- a printhead for printing on said each sheet fed by the sheet feed mechanism;
- and
- a sheet discharge mechanism for discharging said each sheet;
- the sheet discharge mechanism comprising:
- at least one discharge roller for moving said each sheet along a predetermined path;
- an electric discharge brush arranged adjacent to the discharge roller but spaced from the predetermined path, the brush being provided with a plurality of filaments for removing electrostatic charge and for preventing said each sheet from being moved in an unintended direction;
- and
- a rotary shaft for carrying the discharge roller fixed thereto,
- wherein the filaments are divided into a first group corresponding in position to the discharge roller and a second group corresponding in position to an exposed portion of the shaft, the filaments of the first group being shorter than the filaments of the second group.
A facsimile machine incorporating a printer for printing on sheets, the printer comprising:
- a sheet food mechanism for feeding each sheet;
- a printhead for printing on said each sheet fed by the sheet feed mechanism;
- and
- a sheet discharge mechanism for discharging said each sheet, the sheet discharge mechanism comprising:
- a least one discharge roller for moving said each sheet along a predetermined path;
- an electric discharge brush arranged adjacent to the discharge roller but spaced from the predetermined path, the brush being provided with a plurality of filaments for removing electrostatic charge and for preventing said each sheet from being moved in an unintended direction;
- and
- a rotary shaft for carrying the discharge roller fixed thereto,
- wherein the filaments are divided into a first group corresponding in position to the discharge roller and a second group corresponding in position to an exposed portion of the shaft, the filaments of the first group being shorter than the filaments of the second group.
Dependencies are inferred from the claim text.