摘要:
A system and method for utilizing web (60) that is free of tractor pin feed holes comprises the driving of the web (60) along a predetermined path within the utilization device. A web guide (90) is provided in an upstream location from a utilization device element (64). The guide (90) engages width-wise edges of the web (60) and forms the web (60) into a trough to stiffen the web (60). A drive roller (72) and a follower roller (76) impinge upon opposing sides of the web (60) and rotate to drive the web (60) through the guide (90). The drive roller (72) is located adjacent to the guide (90) according to a preferred embodiment. A registration controller (150) is utilized to synchronize the movement of the web (60) with the operation of the utilization device element (64). The controller (150) includes a drive controller that controls the speed of either the drive roller (72) or the utilization device element (64) to maintain the web (60) and the utilization device element (64) in appropriate synchronization.
摘要:
In order to convey a recording medium provided with edge perforations such that the lines remain accurately positioned, motor-driven continuous toothed belts (26) are provided in the region of the transfer printing station of a printing machine or copier. On their inner peripheral surfaces the toothed belts (26) comprise conveyer teeth (39) which are disposed at a predetermined spacing oriented according to the distance between the edge perforations of the recording medium (10). Drive pins (32) adjusted in dependence on the spacings between the conveyer teeth (39) are secured by conical collars in retaining clamps (38) on the outer peripheral surface of the toothed belt (26).
摘要:
In order to arrange two tractor drives for two recording medium webs close to each other in the area of the transfer printing station of an electrographic printing device, the transport pins (32) are secured on the outer surface of transport belts (26). Paper guiding elements (35) arranged in the area of the belt driving wheels (27) lift the recording media (10) in the tapering head part (34) of the transport pins (32), so that the marginal perforations (31) are not deformed.
摘要:
A monoclonal antibody which binds preferentially to a subset of the human CD8 lymphocyte population whereby to positively and precisely distinguish between cytotoxic effector and suppressor effector cells in the CD8 cell population. The monoclonal antibody recognizes a novel epitope of LFA-1 antigen by means of which it can bind CD8 cells which express the epitope on a surface antigen thereof. The CD8 subset cell population to which this antibody binds preferentially is the CD8 cytotoxic effector population. This selectivity of the monoclonal antibody enables cell sorting, diagnostic and positive therapeutic applications thereof to be utilized.
摘要:
A fast printer with a particle trap (30) in front of the printing area (15, 49) in the paper transport direction to catch particles, e.g. paper clips, conveyed along with the printing substrate (12). The particle trap has a passage slit (95) for the printing substrate (12) of suitable size for the particles to be trapped.
摘要:
A preferred embodiment of this continuous-form electrophotographic printer as illustrated in the drawings having an image transfer device 38 positioned at the image transfer station for placing images on individual sheets 14 of a continuous-form 12. Downstream, a distance A, is a fixing device at an image fixing station 32 for fixing the image onto the individual sheet 14. The printer 10 includes a control means 76 for moving the continuous sheet forward when a stop signal is received to position a leading edge of a sheet at the image fixing station 32. When a restart signal is received, the control system initiates the continuous-form feeding means 38 to move the continuous-form 12 forward until a leading edge of a succeeding sheet is positioned at the image transfer station.