Regulation device, image forming apparatus using the same, and a method thereof
AssigneeSamsung Electronics Co., Ltd.
InventorsJeong Yong Ju, Byeong Hwa Anh, Jun Ho Lee
Life of this patent
Estimating the term…
Abstract
An image forming apparatus is provided. The image forming apparatus, in a case in which a toner on a transfer belt is checked through a sensing unit, is capable of preventing a rotation of a guide roller, which is configured to guide the transfer belt, by use of a regulation device, so that a check error occurring due to vibration of the guide roller is reduced. Thus, the toner on the transfer belt is checked with increased accuracy and precision.
Claims17
An image forming apparatus comprising:
- a transfer belt configured to transfer a visible image developed by a developing unit on a printing medium;
- a guide roller configured to guide the transfer belt by supporting one side of an inner surface of the transfer belt;
- and
- a regulation device configured to regulate a rotation of the guide roller,
- wherein at least a part of the regulation device being movable to regulate the rotation of the guide roller, and
- wherein at least a part of a regulation member is coupled to the guide roller by moving in a first longitudinal direction, and is separated from the guide roller by moving in a second longitudinal direction opposite to the first longitudinal direction.
An image forming apparatus comprising:
- a transfer belt configured to transfer a visible image developed by a developing unit on a printing medium;
- a guide roller configured to guide the transfer belt by supporting one side of an inner surface of the transfer belt;
- a regulation device configured to regulate a rotation of the guide roller;
- and
- a sensing unit configured to check a toner transferred on the transfer belt,
- wherein at least a part of the regulation device being movable to regulate the rotation of the guide roller, and
- wherein the regulation device restricts the guide roller from rotating when the sensing unit checks the toner transferred on the transfer belt.
An image forming apparatus comprising:
- a transfer belt configured to transfer a visible image developed by a developing unit on a printing medium;
- a guide roller configured to guide the transfer belt by supporting one side of an inner surface of the transfer belt;
- and
- a regulation member movably installed and configured to restrict a rotation of the guide roller by being coupled to the guide roller depending on a position thereof while in motion,
- wherein at least a part of the regulation member is coupled to the guide roller by moving in a first longitudinal direction, and is separated from the guide roller by moving in a second longitudinal direction opposite to the first longitudinal direction.
An image forming apparatus comprising
- a transfer belt configured to transfer a visible image developed by a developing unit on a printing medium;
- a guide roller configured to guide the transfer belt by supporting one side of an inner surface of the transfer belt;
- a regulation member, at least a part of the regulation member movably installed and configured to restrict a rotation of the guide roller by being coupled to the guide roller depending on a position thereof while in motion;
- and
- a sensing unit configured to check the toner transferred on the transfer belt.
A regulation member for an image forming apparatus including a guide roller, the regulation member, comprising:
- a coupling part configured to restrict a rotation of the guide roller by being coupled to the guide roller depending on a position thereof while in motion,
- wherein at least a part of the regulation member is movably installed in the image forming apparatus so as to move in a first longitudinal direction to be coupled with the guide roller, and to move in a second longitudinal direction opposite to the first direction to separate from the guide roller.
A method for improving accuracy of a checking of a toner on a transfer belt in an image forming apparatus, the method comprising:
- moving a coupling part to couple with a roller guiding the transfer belt;
- coupling the coupling part and the roller during the checking to restrict a vibration of the roller.
Dependencies are inferred from the claim text.