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An electrophotographic printer is shown in which two print images are produced side by side on the photoconductor drum.
English (United States)
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Two Path Electrophotographic Print Process
An electrophotographic printer is shown in which two print images are
produced side by side on the photoconductor drum.
The electrophotographic printer comprises the conventional photoconductor
drum 10, cleaner 12, charge unit 14, expose station 16, developer 18, and
transfer station 20. Two print webs 22,24 are utilized as a guide to feed sheets
and to transport the sheets through transfer station 20, through fuser 28, and to
output paper station 30. Station 30 incorporates a cross-feed to feed the sheets
to the other image area to print the appropriate image on the opposite side of the
sheet. This apparatus can also be operated to use the two separate webs to
print two jobs simultaneously.
Alternatively, in the second figure is shown a duplexing system in which the
print web 34 is fed from an input stack 32 to print a first image on one side of the
web and this image is fused as the web passes through fuser 28. The web is
then looped back and fed into a parallel path back through the system for printing
an appropriate image on the back of the web. The second side image is fused
as the web is moved through fuser 28, so the web then has appropriate data
printed on both sides.
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