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1. 发明公开

EP1705022A2 Image forming method and image forming apparatus 有权
标题翻译： Bildformungsgerät
公开(公告)号：EP1705022A2
公开(公告)日：2006-09-27
申请号：EP06251177.9
申请日：2006-03-06
申请人： CANON KABUSHIKI KAISHA
发明人： Arai, Noriyuki Canon KK
IPC分类号： B41J11/00 , B41J13/14
CPC分类号： B41J13/14 , B41J11/0065
摘要： An image forming apparatus (1) includes upstream and downstream transport rollers (7, 8) for transporting a recording paper sheet (3). The upstream transport roller (7) is disposed on the upstream side of a recording head (10) while the downstream transport roller (8) is disposed on the downstream side of the recording head (10). When forming an image on the first half area of the recording sheet (3), the upstream transport roller (7) rotates and is responsible for transporting the recording sheet (3). When forming an image on the second half area of the recording sheet (3), the downstream transport roller (8) rotates and is responsible for transporting the sheet (3). This structure provides printing without margins at the leading and trailing edges of the sheet (3). By adjusting the gap sizes between rollers in each of the upstream and the downstream rollers (7, 8), the transport speed of the sheet (3) is maintained constant so that high-quality print image can be obtained without uneven density in an image.
摘要翻译：图像形成装置（1）包括用于传送记录纸（3）的上游和下游传送辊（7,8）。上游输送辊（7）设置在记录头（10）的上游侧，而下游输送辊（8）设置在记录头（10）的下游侧。当在记录纸（3）的第一半区域上形成图像时，上游输送辊（7）旋转并负责运送记录纸（3）。当在记录纸（3）的第二半区域上形成图像时，下游输送辊（8）旋转并负责输送纸（3）。该结构提供了在片材（3）的前缘和后缘的无边缘的印刷。通过调整上游辊和下游辊（7,8）中的辊之间的间隙尺寸，片材（3）的输送速度保持恒定，从而可以获得高质量的打印图像而不会在图像中产生不均匀的浓度。

2. 发明公开

EP1705022A3 Image forming method and image forming apparatus 有权
标题翻译：图像形成方法和装置
公开(公告)号：EP1705022A3
公开(公告)日：2010-03-17
申请号：EP06251177.9
申请日：2006-03-06
申请人： CANON KABUSHIKI KAISHA
发明人： Arai, Noriyuki Canon KK
IPC分类号： B41J11/00 , B41J13/14
CPC分类号： B41J13/14 , B41J11/0065
摘要： An image forming apparatus (1) includes upstream and downstream transport rollers (7, 8) for transporting a recording paper sheet (3). The upstream transport roller (7) is disposed on the upstream side of a recording head (10) while the downstream transport roller (8) is disposed on the downstream side of the recording head (10). When forming an image on the first half area of the recording sheet (3), the upstream transport roller (7) rotates and is responsible for transporting the recording sheet (3). When forming an image on the second half area of the recording sheet (3), the downstream transport roller (8) rotates and is responsible for transporting the sheet (3). This structure provides printing without margins at the leading and trailing edges of the sheet (3). By adjusting the gap sizes between rollers in each of the upstream and the downstream rollers (7, 8), the transport speed of the sheet (3) is maintained constant so that high-quality print image can be obtained without uneven density in an image.

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