1/05
10-69
DocuColor 12/DCCS50
Overview
Principles of Operation
Reissue
A separate IIT/IPS Low Voltage Power Supply (LVPS) supplies all of the preliminary IPS
assemblies, the Pre-IPS PWBA in the IIT and most of the image scanning assemblies and cir-
cuitry. However, the Xenon Lamp which illuminates original document is powered by a dedi-
cated power supply.
Figure 2 IIT and IPS Major Assemblies Locations (IIT/IPS Tray)
Figure 3 IPS Major Assemblies Locations (Below IIT/IPS Tray)
IIT/IPS LVPSPOST-IPS PWBA
PRE-IPS PWBA
(TOP LAYER)
BR PWBA
(TOP LAYER)
MEMORY SYS-
TEM PWBA (BOT-
TOM LAYER)
MEMORY PWBAS
(MIDDLE LAYER)
Table 1 Machine Configuration vs. Included Imaging Functions and Assemblies
Configuration
Included Imaging
F
unct
ions Included Imaging Assemblies
Digital Copier Copying Scanning Assemblies and Circuits, Pre-
IP
S PWBA
, Memory PWBA, Post-IPS
PWBA, VSEL PWBA, Halftone PWBA,
LDD PWBA, ROS
Copier/Printer Scanning, Printing and Copy-
ing
Same as Copier Only
RASTER OUTPUT
SCANNER (ROS)
HALFTONE PWBA
(BOTTOM LAYER)
LASER DIODE
DRIVE PWBA
VIDEO SELECT (VSEL)
PWBA (TOP LAYER)
VSEL EXTENSION
PWBA
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