Disruptions of toner transfers from developers to photoreceptors
AssigneeHewlett-Packard Development Company, L.P.
InventorsJeffrey Harold Luke, Justin D. Pettingill, Gabriel Scott McDaniel
Life of this patent
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Abstract
An apparatus includes a developer to receive a toner, and an actuator moveable between different positions. An electrical switch is responsive to an input stimulus from the actuator to control a voltage that enables or disrupts a transfer of the toner from the developer to a photoreceptor, where the electrical switch when in a first state sets the voltage at a first level to enable the transfer of the toner from the developer to the photoreceptor, and the electrical switch when in a second state sets the voltage at a second level to disrupt the transfer of the toner from the developer to the photoreceptor.
Claims15
An apparatus comprising:
- a developer to receive a toner;
- an actuator moveable between different positions;
- and
- an electrical switch responsive to an input stimulus from the actuator to control a voltage that enables or disrupts a transfer of the toner from the developer to a photoreceptor, the electrical switch when in a first state to set the voltage at a first level to enable the transfer of the toner from the developer to the photoreceptor, and the electrical switch when in a second state to set the voltage at a second level to disrupt the transfer of the toner from the developer to the photoreceptor.
A cartridge for an image forming device, comprising:
- a developing roller to transfer a toner to a photosensitive drum of the image forming device;
- a moveable support that is moveable between a first position and a second position by an actuator responsive to control of the image forming device;
- a first charging element on the moveable support, the first charging element when energized having a voltage, wherein the first charging element is disengaged from the photosensitive drum when the moveable support is at the first position, and the first charging element is engaged with the photosensitive drum when the moveable support is at the second position,
- wherein the first charging element when engaged with the photosensitive drum is downstream, in a rotational direction of the photosensitive drum, of a second charging element that charges a surface of the photosensitive drum.
A method comprising:
- inserting a cartridge comprising a toner into an image forming device, the cartridge comprising a developer to receive the toner, and an electrical switch;
- and
- actuating an actuator of the cartridge responsive to an input stimulus provided in the image forming device;
- and
- activating the electrical switch from a first state to a second state responsive to the actuating of the actuator, wherein the electrical switch when in the first state sets a voltage at a first level to enable the transfer of the toner from the developer to a photoreceptor of the image forming device, and the electrical switch when in a second state sets the voltage at a second level to disrupt the transfer of the toner from the developer to the photoreceptor.
Dependencies are inferred from the claim text.