摘要:
A channel (130) for recirculating a stream of air (116) located adjacent a stream of marking particles exiting substantially tangentially from a marking particle transport member (90) within a developer unit is provided. The stream of marking particles defines an inner boundary (110) thereof extending tangentially from a first position (106) adjacent to the transport member (90) and an outer boundary (112) thereof spaced from the transport member (90) and the inner boundary (110). The channel includes a first member (136) positioned outside the stream of marking particles. At least a portion of the first member (136) is positioned substantially adjacent the outer boundary (112) and spaced from the transport member (90). The channel also includes a second member (140) connected to the first member (136) and a third member (142) connected to the second member (140). Substantially all the stream of air being directed by the first member (136) is sequentially directed by the second member (140) and the third member (142).
摘要:
A developer backer bar having a substantially flat surface for interfacing with a noncontact developer member. The backer bar is arranged so that it can be retracted for clearance purposes when removing or inserting a xerographic CRU. Upon installation of the CRU, the backer bar is biased into position to maintain a development zone within predetermined parameters. The substantially flat surface eliminates or minimizes errors that may result from slight variations in axial alignment between the backer bar and the developer member.
摘要:
A channel (130) for recirculating a stream of air (116) located adjacent a stream of marking particles exiting substantially tangentially from a marking particle transport member (90) within a developer unit is provided. The stream of marking particles defines an inner boundary (110) thereof extending tangentially from a first position (106) adjacent to the transport member (90) and an outer boundary (112) thereof spaced from the transport member (90) and the inner boundary (110). The channel includes a first member (136) positioned outside the stream of marking particles. At least a portion of the first member (136) is positioned substantially adjacent the outer boundary (112) and spaced from the transport member (90). The channel also includes a second member (140) connected to the first member (136) and a third member (142) connected to the second member (140). Substantially all the stream of air being directed by the first member (136) is sequentially directed by the second member (140) and the third member (142).
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.