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Image Source Selection
Principles of Operation
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Image Source Selection
As shown in Figure 1, the VSEL PWBA controls the routing of the image. The possible sources
are the scanned image from the Post-IPS PWBA and the print image from the Digital Front End
(DFE). The selected image is always routed to the Halftone PWBA. In addition, the selected
image can be routed to the DFE. Therefore, the machine can be used as a scanner, with the
resulting images being sent to client workstations.
The Halftone PWBA controls the selection of input and output. In addition, it can load a test
image int
o t
he VSEL PWBA, permitting an end-to-end test of the all succeeding assemblies.
Figure 1 VSEL PWBA Simplified Block Diagram
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