摘要:
A fixing device comprises: a heating rotary member and a pressurizing rotary member, which form a nip, and guiding members for guiding a recording sheet that has passed through the nip. In a cross-section perpendicular to a rotation axis of the heating rotary member, La connects axial centers of two rotary members, Lb is perpendicular to La, P is on a guiding surface of one of the guiding members and horizontally closer to the pressurizing rotary member than any other points thereon, said one of the guiding members being closer to the heating rotary member than the other, Lc passes through P and is tangent to an outer circumference of the heating rotary member near the nip, and D is a P-La distance. Here, heating rotary member diameter×1.6≦D
摘要翻译:定影装置包括:加热旋转构件和形成辊隙的加压旋转构件,以及用于引导通过辊隙的记录片材的引导构件。 在垂直于加热旋转件的旋转轴线的截面中,La连接两个旋转件的轴向中心,Lb垂直于La,P在一个导向件的导向表面上并且水平地靠近加压旋转件 所述一个引导构件比另一个更靠近加热旋转构件,Lc穿过P并且与加热旋转构件的靠近压区的外圆周相切,并且D是P- 拉距离。 这里,加热旋转件直径×1.6&nlE; D <加热旋转件直径×2.4。 在辊隙以上,Lc比Lb更倾斜于加热旋转构件,并且在Lc和Lb之间的角度为2.2°&lt; 6.5°。
摘要:
The paper feeding device of the present invention comprises a paper holder for holding a stack of large number of paper sheets; a first roller for sheetwise feeding out paper sheets from the stack in or on the holder; a regular rotation roller for further feeding each of paper sheets and rotatably mounted at a position downstream from the first roller when looking in the paper feeding direction; and a paging roller mounted in opposition to the regular rotation roller. The paging roller is driven always in such a rotational direction for drawback of sheet or sheets in the reverse direction relative to the regular and forward paper feed direction when one or more common class paper sheet or sheets or a plurality of special class paper sheet of a different quality then common class paper sheet is/are fed between the regular rotation roller and the paging roller. In addition the paging roller is rotated as a follower roller following the fed sheet under the action of the regular rotation roller when only one special class paper is introduced between the both rollers.
摘要:
A fixing device comprises: a heating rotary member and a pressurizing rotary member, which form a nip, and guiding members for guiding a recording sheet that has passed through the nip. In a cross-section perpendicular to a rotation axis of the heating rotary member, La connects axial centers of two rotary members, Lb is perpendicular to La, P is on a guiding surface of one of the guiding members and horizontally closer to the pressurizing rotary member than any other points thereon, said one of the guiding members being closer to the heating rotary member than the other, Lc passes through P and is tangent to an outer circumference of the heating rotary member near the nip, and D is a P-La distance. Here, heating rotary member diameter×1.6≦D
摘要翻译:定影装置包括:加热旋转构件和形成辊隙的加压旋转构件,以及用于引导通过辊隙的记录片材的引导构件。 在垂直于加热旋转件的旋转轴线的截面中,La连接两个旋转件的轴向中心,Lb垂直于La,P在一个导向件的导向表面上并且水平地靠近加压旋转件 所述一个引导构件比另一个更靠近加热旋转构件,Lc穿过P并且与加热旋转构件的靠近压区的外圆周相切,并且D是P- 拉距离。 这里,加热旋转件直径×1.6&nlE; D <加热旋转件直径×2.4。 在辊隙以上,Lc比Lb更倾斜于加热旋转构件,并且在Lc和Lb之间的角度为2.2°&lt; 6.5°。
摘要:
In a process for reproducing images of fine lines of characters of low density, the latent image is initially transferred onto transfer paper such that charges, including the non-image portions of the original, are transferred onto substantially the entire area of the transfer paper so as to assure transfer of fine images and subsequently developing the transfer paper by a wet-type developing technique such that the transfer paper is passed through at least one electrode effective region having a greater potential than the potential of the non-image portion and a polarity the same as the potential of the areal image of the non-image portions, and also passing the transfer paper through at least one electrode non-effective region to clearly visualize only the latent image with the images of low densities.