Sheet conveying device

A sheet conveying device comprising:

• a roller unit configured to convey a sheet in a first nip and a second nip, the roller unit including
• a driving roller,
• a shaft configured to be rotated with the driving roller by driving force received from a driving source,
• a first roller configured to form the first nip with the driving roller and configured to be rotated by a rotation of the driving roller, and
• a second roller configured to form the second nip with the driving roller and configured to be rotated by the rotation of the driving roller, wherein a force that the second roller asserts on the driving roller along a virtual straight line between a rotation center of the second roller and a rotation center of the driving roller is larger than a force that the second roller asserts on the driving roller along a virtual straight line between the rotation center of the second roller and a rotation center of the first roller,
• a holding member including a concave holding portion configured to hold the shaft using the force that the second roller asserts on the driving roller,
• a frame supporting both longitudinal end portions of the holding member, the holding portion of the holding member being provided between both the longitudinal end portions of the holding member in an axial direction of the shaft, and
• a switch member configured to switch a conveying path of the sheet, the switch member being movable between a first position to guide the sheet to the first nip and a second position to guide the sheet to the second nip.