| 摘要 |
PROBLEM TO BE SOLVED: To obtain a stencil printer printing on a print sheet carried between a plate cylinder and a rear push roller by pushing out an intermediate push roller from the inside of the plate cylinder in which a desired print pressure can be attained. SOLUTION: An intermediate push roller 4 is supported rotatably on a base plate 6 which is supported rotatably on a supporting shaft 5. An eccentric cam 8 coupled with a sector gear 9 is fitted in the opening 6a of the base plate 6. Driving force of a pulse motor 10 is transmitted through a motor gear 11 and an idler gear 12 to the sector gear 9 to turn the eccentric cam 8 and the base plate 6 turns about the supporting shaft 5 to shift the position of the intermediate push roller 4. A desired print pressure can be attained by varying the rotational amount of the pulse motor 10 thereby varying the push out amount of the intermediate push roller 4 arbitrarily. |
