摘要:
A sheet feeding and corrugating system (10), especially for output of image substrate sheets (12,16) of a reproduction apparatus, wherein the sheets (12) are fed in a normal path through a sheet feeding nip (20) comprising plural spaced sheet feeding rollers (22). Both feeding and variable corrugating of flimsy or stiff sheets is provided by spherical balls (24) freely mounted in generally vertical ball retainers (26) providing for vertical movement and dual axis rotation against the sheet feeding rollers (22) to define the sheet feeding nip (20) and by additional similar balls (30) (in additional similar ball retainers (31)) intermediately of the feed rollers (22), which additional balls (30) are unsupported vertically except by bottom-of-travel retainers (32) so that these additional intermediate balls (30) roll gravity-loaded against a sheet (12) being fed through the nip (20) to provide sheet corrugation varying automatically with the stiffness of the sheet (12), and are freely liftable up to the level of the nip (20) by stiff sheets resisting corrugation. These balls (30) may be readily added to or removed to independently increase or decrease the sheet nip (20) and/or corrugation forces at their respective locations transverse the nip (20). A sheet side shifting mechanism (42) can laterally offset the sheets (12) in the same nip (20) to eject offset, by moving only the sheet feeding rollers (22), without resistance from the stationarily mounted balls (24,30), all of which roll freely laterally as well in the normal feeding direction.
摘要:
An apparatus (28) for enhancing contact between a copy sheet (20) and a developed image (26) positioned on a photoconductive member (10) includes a cam (44) movable between a first position and a second position. The apparatus further includes a mechanism for moving the cam between its first position and its second position. Additionally, the apparatus includes a contact member (32) being spaced apart from the copy sheet (20) in a first mode of operation (Fig. 1) and being in contact with the copy sheet (20) in a second mode of operation. Moreover, the apparatus includes a mechanism (48,66,68) for positioning the contact member (32) in its first mode of operation in response to the cam (44) being moved to its first position, and in its second mode of operation in response to the cam (44) being moved to its second position.
摘要:
An apparatus (28) for enhancing contact between a copy sheet (20) and a developed image (26) positioned on a photoconductive member (10) includes a cam (44) movable between a first position and a second position. The apparatus further includes a mechanism for moving the cam between its first position and its second position. Additionally, the apparatus includes a contact member (32) being spaced apart from the copy sheet (20) in a first mode of operation (Fig. 1) and being in contact with the copy sheet (20) in a second mode of operation. Moreover, the apparatus includes a mechanism (48,66,68) for positioning the contact member (32) in its first mode of operation in response to the cam (44) being moved to its first position, and in its second mode of operation in response to the cam (44) being moved to its second position.
摘要:
A sheet feeding and corrugating system (10), especially for output of image substrate sheets (12,16) of a reproduction apparatus, wherein the sheets (12) are fed in a normal path through a sheet feeding nip (20) comprising plural spaced sheet feeding rollers (22). Both feeding and variable corrugating of flimsy or stiff sheets is provided by spherical balls (24) freely mounted in generally vertical ball retainers (26) providing for vertical movement and dual axis rotation against the sheet feeding rollers (22) to define the sheet feeding nip (20) and by additional similar balls (30) (in additional similar ball retainers (31)) intermediately of the feed rollers (22), which additional balls (30) are unsupported vertically except by bottom-of-travel retainers (32) so that these additional intermediate balls (30) roll gravity-loaded against a sheet (12) being fed through the nip (20) to provide sheet corrugation varying automatically with the stiffness of the sheet (12), and are freely liftable up to the level of the nip (20) by stiff sheets resisting corrugation. These balls (30) may be readily added to or removed to independently increase or decrease the sheet nip (20) and/or corrugation forces at their respective locations transverse the nip (20). A sheet side shifting mechanism (42) can laterally offset the sheets (12) in the same nip (20) to eject offset, by moving only the sheet feeding rollers (22), without resistance from the stationarily mounted balls (24,30), all of which roll freely laterally as well in the normal feeding direction.