A drive transmission device includes a shaft supporting member attached to a drive frame. The shaft supporting member rotatably supports a driving shaft. The shaft supporting member includes two bearing surfaces for rotatably holding the driving shaft, where the two bearing surfaces are disposed so as to be on a straight line, and a boss portion having the center thereof located on the straight line for positioning the drive transmission device relative to the drive frame.

A drive transmission device includes a shaft supporting member attached to a drive frame. The shaft supporting member rotatably supports a driving shaft. The shaft supporting member includes two bearing surfaces for rotatably holding the driving shaft, where the two bearing surfaces are disposed so as to be on a straight line, and a boss portion having the center thereof located on the straight line for positioning the drive transmission device relative to the drive frame.

A printer includes a print head configured to print along a raster direction portions of an image in units of a raster, a movement mechanism that includes a stepping motor and is configured to move one of the printing medium and the print head so as to change a relative position between the printing medium and the print head in a direction intersecting the raster direction, and a control unit configured to control the print head and the movement mechanism. The print head is controlled to perform printing of one raster each time the relative position between the printing medium and the print head is changed by an interval of the raster. The movement mechanism is controlled to make a drive interval of the stepping motor at least one time step longer than a preceding drive interval before a rotation speed of the stepping motor reaches a predetermined target speed.

There is provided an ink-jet printer including a conveyer, a recording head, a carriage, an ink receiver and a controller. The controller executes: receiving a recording instruction; determining an ink amount to be jetted in a flushing process; moving the carriage in a first orientation up to a returning position corresponding to the ink amount; moving the carriage in a second orientation opposite to the first orientation from the returning position to a sheet facing area; executing a flushing processing; and executing recording. The returning position is located at a first position downstream from the sheet facing area in the first orientation, under a condition that the determined ink amount is less than a threshold value; and the returning position is located at a second position downstream from the first position in the first orientation, under a condition that the determined ink amount is not less than the threshold value.

An assembly comprises at least first and second transmission links. Each transmission link controls movement of a respective element coupled to a first side of the transmission link, under control of a common drive source coupled to a second side of the transmission link. A synchronizing unit is interposed between the first side and the second side of each transmission link, to synchronize movement of the respective elements by the common drive source.

The liquid ejection apparatus with a liquid jetting head and support members is described. A first support member and a second support member support a guide and feeding roller in a scanning direction and are attached to a housing of the liquid ejection apparatus. The housing at the location to which the first support member is attached is easier to deform in the scanning direction than housing at the location to which the second support member is attached. Further, the housing at the first location may include a projection. The first support member may be attached to the projection.

There is provided a recording apparatus including: a recording unit that performs recording on a medium transported in a first direction; a medium feeding unit that is positioned in a second direction opposite to the first direction of the recording unit, includes a medium supporting unit; and a medium reversing unit that reverses the medium transmitted in the second direction after the recording of the recording unit, and transmits the medium to the first direction, in which the medium feeding unit includes a first guide unit and forms a first guide surface in the downward slope toward the first direction, and a power transmission unit that transmits a driving power from a power source of the medium reversing unit to the medium reversing unit, and at least a part of the first guide unit in a vertical direction overlaps with the power transmission unit.

There is provided a recording apparatus including: a recording unit that performs recording on a medium transported in a first direction; a medium feeding unit that is positioned in a second direction opposite to the first direction of the recording unit, includes a medium supporting unit; and a medium reversing unit that reverses the medium transmitted in the second direction after the recording of the recording unit, and transmits the medium to the first direction, in which the medium feeding unit includes a first guide unit and forms a first guide surface in the downward slope toward the first direction, and a power transmission unit that transmits a driving power from a power source of the medium reversing unit to the medium reversing unit, and at least a part of the first guide unit in a vertical direction overlaps with the power transmission unit.

An image forming apparatus includes a communication interface, an image forming unit, a plurality of sheet feeders, and a motor configured to selectively apply a drive force any of the sheet feeders. A transmission assembly switches transmission to any one of the sheet feeders. A controller receives preceding data from the communication interface, and, in response, controls the transmission assembly to initiate a switch of the transmission of the drive force to a standard sheet feeder among the plurality of the sheet feeders. In response to receipt control data received after the preceding data, the controller controls the image forming unit, motor, and transmission assembly to form an image on the sheet based on an image forming condition included in the control data.

A driving force transmission mechanism includes a first transmission member and a second transmission member that are arranged on an identical rotational center axis. The first transmission member includes one or more transmission claws engaged with the second transmission member. The transmission claw includes, at a position away from the rotational center axis, a fixing portion with respect to the first transmission member, and extends in a direction crossing a direction directed from the fixing portion to the rotational center axis. The second transmission member includes one or more stoppers engaged with a tip end of the transmission claw and one or more holding portions engaged with a side of the transmission claw, which faces the rotational center axis.