October 2012
8-14
ColorQube 8570/8870 Service Manual
Printer Electronics
Revised, 3rd Revision - Xerox Internal Use Only
Theory of Operation
Voltage Supplies
The following diagram illustrates voltage generation for the boards in the Electronics Module.
Figure 10 Voltage Supplies
+3.3V Distribution
+3.3V_SLEEP DC is regulated on the Main Board. The power supply 12V_SLEEP to
the Main Board. It is then passed through a switching regulator. The Power Control Board con-
nects 3.3V to 3.3V_SLEEP with a switch when not in power saving modes.
+12V
The Power Supply de50V to the Power Control Board. The Power Control Board uti-
lizes a switching regulator to ge12V for the system.
I/O Board
All sensor and switch readings are input into the I/O Board. The I/O Board translates these
states into encoded information that it sends over a serial data bus (I/O Board Data Cable) to
the Electronics Module. The Electronics Module has no direct connection to the Sensors,
Switches, or Solenoids. In order to activate a Clutch or Solenoid, the Electronics Module sends
a command to the I/O Board, which processes the command and activates the appropriate
device.
Figure 11 I/O Board
Содержание COLORQUBE 8570
Страница 1: ...ColorQube 8570 8870 Printer ColorQube 8570 8870 Service Manual Xerox Internal Use Only...
Страница 2: ......
Страница 152: ...October 2012 3 2 ColorQube 8570 8870 Service Manual Revised 3rd Revision Xerox Internal Use Only Image Quality...
Страница 196: ...October 2012 4 2 ColorQube 8570 8870 Service Manual Revised 3rd Revision Xerox Internal Use Only Repairs and Adjustments...
Страница 304: ...October 2012 5 2 ColorQube 8570 8870 Service Manual Revised 3rd Revision Xerox Internal Use Only Parts List...
Страница 316: ...October 2012 6 2 ColorQube 8570 8870 Service Manual Revised 3rd Revision Xerox Internal Use Only General Troubleshooting...
Страница 372: ...October 2012 7 2 ColorQube 8570 8870 Service Manual Revised 3rd Revision Xerox Internal Use Only Wiring Data...
Страница 392: ...October 2012 8 2 ColorQube 8570 8870 Service Manual Revised 3rd Revision Xerox Internal Use Only Theory of Operation...
Страница 423: ......