摘要:
A paper feed roll assembly for a printer or typewriter having a platen is described. The assembly is fabricated in such a way as to allow simple insertion into the printer or typewriter and the retention of the assembly in a proper position within the typewriter by the engagement of hooks (50) appended to the paper deflector (42, 54) with a paper release bail. Movement of paper release bail (14. 18) will compress a spring (28) which engages roll axle supports (20) and fixed rail (10), allowing the paper deflector (42, 54) and feed rolls (38) to with withdrawn from the periphery of the platen. The device allows automated assembly of the paper feed roll assembly into a machine and, in addition, provides complete self-alignment capability for the rolls (38) with respect to the periphery of the platen.
摘要:
A printing media feed and retaining apparatus particularly useful in a computer driven thermal ink jet printer/plotter which has a plurality of pinch rollers (20) mounted on a single pinch roller support member (25). One or more support members (25) are positioned adjacent a platen roller (10) in proximity to the print path. The pinch rollers (20) are retracted away from the platen roller for removing the print medium and are supported such that they are self centering and track without skewing or damaging the printing medium without the use of precision parts or mounting techniques.
摘要:
A sheet conveying apparatus for printer, comprises an apparatus body (1) with first and second sheet exhaust ports (60, 64), a printing unit (6, 7) provided in the apparatus body (1), a pair of feeding rollers (3a, 4a) for feeding a sheet to the printing unit (6, 7), and a pair of exhaust rollers (3b, 4b) for exhausting the sheet from the printing unit (6, 7). The apparatus body (1) has a support frame (31) for rotatably carrying one of the feeding rollers (3a, 4a) and one of the exhaust rollers (3b, 4b). The contact force of the feeding rollers (3a, 4a) and the contact force of the exhaust rollers (3b, 4b) are simultaneously adjusted by an eccentric roller. Further, the apparatus body (1) has a sheet exhaust direction changing mechanism (22, 50) for selecting one of the sheet exhaust ports (60, 64) in accordance with the type of sheet, in cooperation with the movement of the support frame (31).
摘要:
A printing media feed and retaining apparatus particularly useful in a computer driven thermal ink jet printer/plotter which has a plurality of pinch rollers (20) mounted on a single pinch roller support member (25). One or more support members (25) are positioned adjacent a platen roller (10) in proximity to the print path. The pinch rollers (20) are retracted away from the platen roller for removing the print medium and are supported such that they are self centering and track without skewing or damaging the printing medium without the use of precision parts or mounting techniques.
摘要:
A sheet conveying apparatus for printer, comprises an apparatus body (1) with first and second sheet exhaust ports (60, 64), a printing unit (6, 7) provided in the apparatus body (1), a pair of feeding rollers (3a, 4a) for feeding a sheet to the printing unit (6, 7), and a pair of exhaust rollers (3b, 4b) for exhausting the sheet from the printing unit (6, 7). The apparatus body (1) has a support frame (31) for rotatably carrying one of the feeding rollers (3a, 4a) and one of the exhaust rollers (3b, 4b). The contact force of the feeding rollers (3a, 4a) and the contact force of the exhaust rollers (3b, 4b) are simultaneously adjusted by an eccentric roller. Further, the apparatus body (1) has a sheet exhaust direction changing mechanism (22, 50) for selecting one of the sheet exhaust ports (60, 64) in accordance with the type of sheet, in cooperation with the movement of the support frame (31).
摘要:
A paper feed roll assembly for a printer or typewriter having a platen is described. The assembly is fabricated in such a way as to allow simple insertion into the printer or typewriter and the retention of the assembly in a proper position within the typewriter by the engagement of hooks (50) appended to the paper deflector (42, 54) with a paper release bail. Movement of paper release bail (14. 18) will compress a spring (28) which engages roll axle supports (20) and fixed rail (10), allowing the paper deflector (42, 54) and feed rolls (38) to with withdrawn from the periphery of the platen. The device allows automated assembly of the paper feed roll assembly into a machine and, in addition, provides complete self-alignment capability for the rolls (38) with respect to the periphery of the platen.