Xerox ColorQube 9303 Series Service Manual page 1725

Figure 11 Multi-pass image development
As an example, to develop an image of 375dpi on the drum, the image is built up over 5 passes
(75dpi x 5 passes = 375dpi). Figure 11.
The image resolution in the process direction is determined by the speed of the Drum while in
the imaging cycle. The expression below shows the relationship: Y-resolution (in DPI) = 25.4 x
head frequency (Hz) / imaging speed (mm/s). In order to achieve any different resolution in the
process direction the speed of the drum must change, therefore the imaging time will change
for each revolution.
ColorQube® 9303 Family
NOTE: PCL input is typically 600x600. The ColorQube scales this to 450x500 at normal mode
resolution to provide Normal mode performance.
Transfix
Transfix Roller
The transfix linkages apply force to the transfix roller to bond the image to the media.
Transfix Stripper Blade
The transfix stripper blade removes adhered paper from the transfix roller and directs it to the
exit portion of the paper path. The assembly is constrained in proximity to the transfix roller
such that the blade is always in contact with the roller surface.
Output Transport
The output transport delivers sheets to the output module (LCSS, HVF or OCT). The output
transport is also responsible for returning sheets to the duplex path for second-side marking.
February 2013
8-31
Principles of Operation