公开(公告)号：US5361124A

公开(公告)日：1994-11-01

申请号：US126442

申请日：1993-09-23

申请人： Paul J. Rowe ,  Paul M. Achtziger ,  David C. Malecki ,  Nicholas Kladias

发明人： Paul J. Rowe ,  Paul M. Achtziger ,  David C. Malecki ,  Nicholas Kladias

IPC分类号： G03G15/20 ,  G03G21/00

CPC分类号： G03G15/2064 ,  G03G15/2042 ,  G03G2215/00447 ,  G03G2215/00455

摘要： An improved fuser system especially effective for a large document type of copier is provided. The fusing system is of the heat and pressure type wherein a fuser roll is internally heated by a lamp so that the fuser surface is at a required fusing temperature. When the full width of the roll is used in a particular fusing operation, e.g. 36" wide documents are being copied, the lamp is heated to a maximum temperature. When the document copy is less than 36" and for a center registered system, the ends of the fuser roll would tend to overheat, since the copy media is absorbing heat only in the center portion. According to one aspect of the invention, a control circuit is provided to recognize that the shorter widths of the copy media are being used and to lower the lamp temperature in response thereto to prevent the fuser roll ends from overheating. A further concept is to recognize the type of media being used and to lower the lamp temperature in response to selection of copy media of different fusing characteristics.

摘要翻译： 提供了一种对于大型文件复印机特别有效的改进的定影系统。 定影系统是热和压力型，其中定影辊由灯内部加热，使得定影表面处于所需的定影温度。 当在特定的定影操作中使用卷的全宽时，例如， 36“的文件被复制，灯被加热到最高温度。 当文件复印件小于36“时，对于中心注册系统，定影辊的端部将会过热，因为复印介质仅在中心部分吸收热量。 根据本发明的一个方面，提供一种控制电路以识别正在使用复印介质的较短宽度并响应于此来降低灯泡温度，以防止定影辊端部过热。 进一步的概念是识别正在使用的介质的类型，并且响应于选择不同熔化特性的复印介质来降低灯的温度。