Xerox 8830 Service Manual

Input Tests Output
(Figure 16): The Input Tests screen shows the state of the Forward/Reverse Switch and the (Figure 17): The Output Tests screen shows the state of the Exposure Lamp and the Motor
two Document Edge Sensors,
Lamp - The Exposure Lamp is either ON or OFF.
Switch • The Forward / Reverse Switch is in either in a Low or High state.
Edge - The Edge Sensors (Front and Rear) are either in a Low or a High state.
1. From the Diagnostics menu, select Scanner Diagnostics > Component Tests > input.
Then press the START burton.
Motor • The Motor state is either ON or OFF.
Direction • The direction of motor operation Is either FORWARD or REVERSE.
1. From the Diagnostics menu, select Scanner Diagnostics > Component Tests > Out-
put. Then press the START button.
0B00021A-WHO
Figure 19. input Tests Screen
2. Once the START button has been selected, the logic states of the signal lines connected
to the component are displayed as HIGH or LOW. Tests can now be performed on the
signal lines to check the motor direction, switch states, eto. During these tests, no other
changes in machine state occur. Use the rocker switch on the upper right hand side of the
7358 scanner to test the motor. Use a sheet of paper to test the edge sensors.
3. Press EXIT to end a particular test, and to go back to the Component Teats menu.
NOTE: When checking the Forward / Reverse switch It will be necessary to hold down the
switch in the desired direction to be tested to detect a change of state for that switch.
OS00022A-WH9
Figure 17. Output Tests Screen
2. Pressing ENTER one time on a darkened (selected) item causes a box to appear around
the state of that item. This allows the state of that item to be changed.
3. Pressing the PREVIOUS button on such a boxed item allows a change of state for that
item. (ON to OFF, FORWARD to REVERSE.)
4. Pressing the ENTER button (a second time) causes the selected item to be tested.
5. Press EXIT to go back to the Component Testa Main Menu.
NOTE: Pressing the NEXT or PREVIOUS button on an already selected Item causes the next
item on the list to be highlighted (darkened).
NOTE: In order to test Motor Direction, ensure that the Motor setting Is first turned on.
8830 DDS
3/98
6-11
General Procedures
Diagnostics

Xerox 8830 Specifications

General

Brand	Xerox
Model	8830
Category	Printer
Language	English