JP2005096989A5 - - Google Patents

Claims (13)

A first stacking unit that stacks a sheet material and includes a first stacking unit that receives a gravity force of the sheet material in a supply direction of the sheet material;
A second stacking means detachably installable with respect to the first stacking means on the upper side in the sheet material stacking direction of the first stacking unit;
Separation supply means for separating and supplying the sheet material stacked on the first stacking means and the second stacking means,
The second stacking unit includes a base member to be installed on the first stacking unit, and a second stacking unit that is incorporated so as to be movable with respect to the base member and can be moved back and forth substantially in parallel with the sheet material supply direction. And having
At the retracted position where the second stacking unit has moved upstream in the sheet material supply direction, sheet material can be supplied from the first stacking unit, and the second stacking unit has moved downstream in the sheet material feeding direction. The sheet material supply apparatus, wherein the sheet material can be supplied from the second stacking unit at the supplyable position.   When the second stacking unit is in the supplyable position, the second stacking unit is locked so as not to be detached from the first stacking unit, and when the second stacking unit is detached from the first stacking unit. The sheet material supply apparatus according to claim 1, wherein the second stacking unit is locked so as not to advance to a supplyable position.   The second stacking section is capable of contacting and separating from the downstream end of the sheet material in the supply direction so as to block the sheet supply path from the second stacking section to the separation and supply means. The sheet material supply apparatus according to claim 1, further comprising a blocking unit.   When the second stacking unit is in the retracted position, the sheet supply path blocking means abuts on the downstream end of the sheet material in the supply direction, and when the second stacking unit is in the supplyable position. Is a sheet supply path from the second stacking unit to the separation supply unit when the sheet material of the second stacking unit is supplied by the separation supply unit. The sheet material supply device according to claim 3, wherein the sheet material supply device is opened.   The contact portion that contacts the downstream end of the sheet supply path blocking means in the sheet supply direction is the upper and lower sides in the sheet stacking direction of the sheet stacked on the second stack when in the retracted position. 4. The sheet material supply apparatus according to claim 3, further comprising guide means for guiding each of the sheet supply path blocking means inside the contact portion.   6. The guide unit according to claim 5, wherein the guide unit has a shape that protrudes at least upstream in the sheet supply direction at a portion on the upper and lower sides in the sheet stacking direction in the contact portion of the sheet supply path blocking unit. Sheet material supply device.   The second stacking unit has a restricting means for restricting the lower side of the sheet material in the sheet stacking direction, and the restricting means is provided in the vicinity of the sheet supply path blocking means and a guide means of the sheet supply path blocking means The sheet material supply apparatus according to claim 5, wherein the sheet material supply apparatus overlaps in the sheet supply direction.   The base member of the second stacking unit includes a cover unit that covers a surface of the sheet material stacked on the second stacking unit at the retracted position, and the cover unit covers an upper side of the sheet material in the sheet stacking direction. The sheet material supply apparatus according to claim 3, wherein the sheet material supply apparatus also serves as a restricting means that restricts the sheet supply path blocking means within a contact range with the contact portion.   9. The sheet material supply apparatus according to claim 8, wherein the cover means is separated from the second stacking portion when in the supplyable position.   When the second stacking unit moves from the supplyable position to the retracted position, the second stacking unit is made substantially parallel to the sheet material stacked on the first stacking unit, and then the sheet material The sheet material supply device according to claim 1, wherein the sheet material supply device is configured to move upstream in the supply direction. The first stacking unit includes a sheet type determination sensor that determines the type of sheet supplied from the first stacking unit and the second stacking unit, and a tray position detection that detects the position of the second stacking unit. With a sensor,
The sheet material supply apparatus according to claim 1, wherein a sheet supplied from the determination result of the sheet type determination sensor and the detection result of the tray position detection sensor is identified.   The first stacking unit includes a holding member that holds a back surface of the sheet material stacked on the first stacking unit, and the holding member is in a position where the second stacking unit is visible even when the second stacking unit is installed. The sheet material supply apparatus according to claim 1, wherein an index is provided at a sheet material stacking reference position of the first stacking unit.   A recording apparatus comprising the sheet material supply device according to any one of claims 1 to 12, wherein recording is performed on a sheet material supplied from the sheet material supply device by a recording unit.