HARDWARE COMPONENTS
circuits and the device circuits. They also accept control orders
from the system controller and exercise the indicated functional
control over the devices. The control and interface electronics
communicate device status to the computer software.
Imaging subsystem
The imaging subsystem accepts a formatted page of data on
which forms and graphics are merged for the xerographic
process. This subsystem converts a character from a digitized
form into a printed image composed of tiny dots. These dots
are so small and close together that they appear to form solid
black areas. Image clarity is determined largely by the resolution
or the number of dots per inch (dpi) printed. The resolution of
the 4050/4450/4090 LPS is 300 by 300 dpi. The resolution of the
4650 LPS is 300 or 600 dpi.
Xerographic subsystem
The xerographic subsystem incorporates all of the typical
functions of the xerographic printer, including paper handling
and development of the latent image for the output page. The
latent image is subsequently developed by applying dry ink and
transferring it to a sheet of paper. The final image is fixed when
the paper passes through a fusing station on its way to the
output stacker. The photoreceptor belt is cleaned and recharged
in preparation for the next cycle of operation.
Alternate feeder trays
When all feeder trays contain the same type of paper, you can
print continuously by programming the printer to feed from
alternate feeder trays. You can also fill any tray with different
colored paper or with a different weight of paper.
Simplex printing
When you print on one side of the paper (simplex), the system
obtains an individual sheet of paper from a feeder tray, passes it
over a transfer station, through the fuser station where the image
is fixed, and routes it to the output subsystem.
Duplex printing
When you print on both sides of the paper (duplex), the front
side of the sheet prints before the back side. After the system
prints on the front side, the system turns the sheet over and
reroutes it through the xerographic subsystem for printing on the
back side. When the system completes the process on the back
side of the page, the system routes the sheet to the output
subsystem.
Output subsystem
The output subsystem provides paper stacking, report collating,
optional finishing, and sample print capabilities.
XEROX 4050/4090/4450/4650 LPS PRODUCT REFERENCE
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Summary of Contents for 4050
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