Image Recording Apparatus
AssigneeBrother Kogyo Kabushiki Kaisha
InventorKenichi Iesaki
Life of this patent
Estimating the term…
Abstract
An image recording apparatus includes a carriage which moves in a main scanning direction, a recording head which is installed on the carriage, and which records an image on a sheet, a drive section which has a motor, and which applies a driving force to the carriage, a guide member which guides the carriage in the main scanning direction, a first contact portion which is provided to the carriage and which contacts with the guide member, a second contact portion which is provided to sandwich a center of gravity of the carriage between the first contact portion and the second contact portion and which contacts with the guide member, and a friction-force adjusting section which adjusts a friction force acting between the guide member and the first contact portion in accordance with an acceleration of the carriage.
Claims14
An image recording apparatus configured to record an image on a sheet, comprising:
- a carriage configured to move in a main scanning direction;
- a recording head installed on the carriage and configured to record the image on the sheet;
- a drive section having a motor and configured to apply a driving force to the carriage;
- a guide member configured to guide the carriage in the main scanning direction;
- a first contact portion provided to the carriage and configured to contact with the guide member;
- a second contact portion provided to sandwich a center of gravity of the carriage between the first contact portion and the second contact portion and configured to contact with the guide member;
- and
- a friction-force adjusting section configured to adjust a dynamic friction force acting between the guide member and the first contact portion in accordance with an acceleration of the carriage.
An image recording apparatus configured to record an image on a sheet, comprising:
- a transporting section configured to transport the sheet along a transporting direction;
- a carriage configured to move in a main scanning direction which intersects the transporting direction;
- a recording head installed on the carriage and configured to record the image on the sheet which is transported by the transporting section;
- a drive section having a motor and configured to apply a driving force to the carriage;
- a guide member configured to guide the carriage in the main scanning direction;
- and
- a friction-force adjusting section configured to adjust a dynamic friction force between the carriage and the guide member;
- wherein the carriage is configured to have:
- a coupling portion coupled with the drive section;
- a first contact portion provided to sandwich a center of gravity of the carriage between the coupling portion and the first contact portion, and configured to contact with the guide member under a condition that the carriage moves, and
- a second contact portion provided on a side of the coupling portion in the transporting direction with respect to the center of gravity, and configured to contact with the guide member under the condition that the carriage moves, and
- the friction-force adjusting section is configured to have an electromagnet which generates a magnetic force to attract mutually the guide member and the first contact portion, and to adjust a value of an electric current to be supplied to the electromagnet in accordance with an acceleration of the carriage.
Dependencies are inferred from the claim text.