公开(公告)号：US20090232539A1

公开(公告)日：2009-09-17

申请号：US12341554

申请日：2008-12-22

申请人： Shigeki NOZAWA ,  Toshiya FURUBAYASHI ,  Yoshinori MARUYAMA ,  Takashi HONDA ,  Masao KONDO

发明人： Shigeki NOZAWA ,  Toshiya FURUBAYASHI ,  Yoshinori MARUYAMA ,  Takashi HONDA ,  Masao KONDO

IPC分类号： G03G15/16

CPC分类号： G03G15/161 ,  G03G15/0173 ,  G03G15/5058 ,  G03G2215/00059

摘要： In a printer, three toner patches are primary-transferred successively to an intermediate transfer belt. Here, after the first toner patch passes through a belt cleaner and before the second toner patch reaches the belt cleaner, and after the second toner patch passes through the belt cleaner and before the third patch reaches the belt cleaner, the belt cleaner is operated to change the state of contact to the intermediate transfer belt to a different state. A density sensor detects density of the toner image on the intermediate transfer belt, and presence/absence of the toner patch is detected. When presence/absence of the first to third patches is detected alternately, it is determined that the belt cleaner is performing the operation described above.

摘要翻译： 在打印机中，三个调色剂贴片被一次转印到中间转印带上。 这里，在第一调色剂贴片通过皮带清洁器之后并且在第二调色剂贴片到达皮带清洁器之前，并且在第二调色剂贴片通过皮带清洁器之后并且在第三贴片到达皮带清洁器之前，皮带清洁器被操作 将与中间转印带的接触状态改变为不同的状态。 密度传感器检测中间转印带上的调色剂图像的浓度，并检测是否存在调色剂贴片。 当交替地检测到第一至第三贴片的存在/不存在时，确定皮带清洁器正在执行上述操作。