公开(公告)号：EP1323536A1

公开(公告)日：2003-07-02

申请号：EP02029023.5

申请日：2002-12-27

申请人： Nippon Sheet Glass Co., Ltd.

发明人： Takagi, Tomitaka, Nippon Sheet Glass Co., Ltd. ,  Iki, Koichiro, Nippon Sheet Glass Co., Ltd.

IPC分类号： B41J2/45

CPC分类号： B41J2/451

摘要： Disclosed is an image forming apparatus (13) which provides an image of an excellent quality which has a less variation in resolution and suppressed linear irregularity. A rod lens array (24) includes two rows of rod lenses (25) stacked one on the other. An LED array (23) is offset by a predetermined offset amount (Y) from a plane (C) passing the median position between the first row of rod lenses and the second row of rod lenses. This structure can realize an LED printer head which reduces a variation in the resolution of the rod lens array, thereby suppressing linear irregularity, and can thus provide an image having an excellent quality.

摘要翻译： 公开了一种图像形成装置（13），其提供分辨率变化较小并且抑制线性不规则性的优质图像。 棒状透镜阵列（24）包括彼此堆叠的两排棒状透镜（25）。 LED阵列（23）从穿过第一排棒状透镜和第二排棒状透镜之间的中间位置的平面（C）偏移预定偏移量（Y）。 这种结构可以实现LED打印头，其减小棒状透镜阵列的分辨率的变化，由此抑制线性不规则性，并且因此可以提供具有优良品质的图像。