| 摘要 |
An electrostatographic reproduction machine is provided for reliably producing high quality toner particle images of original images on sheet substrates. The reproduction machine includes (i) a movable image bearing member mounted drivably to a frame and having an image bearing surface defining a path of movement thereof; (ii) electrostatographic imaging elements mounted at various distributed locations along the path of movement for forming toner particle images of original images on the image bearing surface; (iii) a transfer assembly for transferring the toner particle images onto sheet substrates; (iv) a controller for controlling the forming and transfer of toner particle images at a machine front end speed of N copies per minute; and (v) a plurality of M fusing assemblies for applying heat and pressure to toner particle images on sheet substrates so as to fuse and permanently fix such toner images onto the sheet substrates, each fusing assembly of the plurality of M fusing assemblies having at least two different copies per minute fusing speeds including a minimum speed of N/M copies per minute, thereby allowing for increasing image quality, and insuring machine reliability and productivity.
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