摘要:
A recording medium carrier system of an image forming apparatus is constituted by independent units as a paper supply cassette (20), a paper feed unit (24, 31, 33), a transfer unit (12, 13), a fixing unit (50), and a paper ejecting unit (60). An intermediate transfer unit in the transfer unit is provided with an intermediate transfer belt (360) to which a toner image formed on a photoconductive drum (110) is primarily transferred at a primary transfer position and which secondarily transfers the toner image on a recording medium (S) at a secondary transfer position, and a driving roller (310) for circulating the intermediate transfer belt (360). The primary transfer position is arranged close to the driving roller (310).
摘要:
The present invention provides an intermediate transfer unit, comprising a photoconductive drum, an intermediate transfer belt, a primary transfer member, which primarily transfers a toner image formed on said photoconductive drum onto said intermediate transfer belt at a primary transfer position, said primary transfer member having a resistance value (RT) of 1 MΩ or less, a secondary transfer member, which secondarily transfers said toner image from said intermediate transfer belt to a recording medium, an elastic backup member disposed in said primary transfer position, and a high-voltage power source (V 1 ), which applies bias to said primary transfer member under a current absorbable constant-voltage control (R X ).
摘要:
The present invention provides an image forming apparatus, comprising a photoconductive drum (110) and an intermediate transfer belt (360), to which a toner image formed on said photoconductive drum (110) is primarily transferred and which secondarily transfers said toner image onto a recording medium (S), wherein a loose apparent density, a shape factor SF-1 and a shape factor SF-2 of toner forming the toner image are no less than 0.35 g/cm 3 , no more than 150 and no more than 140, respectively.
摘要:
A recording medium carrier system of an image forming apparatus is constituted by independent units as a paper supply cassette (20), a paper feed unit (24, 31, 33), a transfer unit (12, 13), a fixing unit (50), and a paper ejecting unit (60). An intermediate transfer unit in the transfer unit is provided with an intermediate transfer belt (360) to which a toner image formed on a photoconductive drum (110) is primarily transferred at a primary transfer position and which secondarily transfers the toner image on a recording medium (S) at a secondary transfer position, and a driving roller (310) for circulating the intermediate transfer belt (360). The primary transfer position is arranged close to the driving roller (310).