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8-18 Troubleshooting
Table 8-3. Service Tests (Continued)
Test Description Assemblies
Tested
Cutter Verifies operation of the cutter. Allows either
single or continuous cut operation. An offset
value can be entered to determine how much
margin the cutter system has.
Cutter Assembly
Pen Carriage/
Cutter Assembly
Operation
Rotary Blade
Overdrive
Support
Assembly
Button Test The display indicates which button the servo
processor interprets as being pressed. Button
code is matched against a look-up table.
Three failure modes are possible:
1) Button indicated on display is incorrect.
2) Display does not change when button is
pressed.
3) ªButton Failº shown on display if no code
match was found.
EXIT by pressing UP ARROW and DOWN
ARROW at the same time.
Front Panel
Front Panel
Cable
Main PCA
X-motion
Control
The X-axis motor is continuously driven
forward in swath-advance increments.
Pressing the UP ARROW increases speed.
Pressing the DOWN ARROW decreases
speed. EXIT by pressing the ENTER button.
X-Motor/
Encoder
Interconnect
PCA
Main PCA
Overdrive Drive
Roller
Bail Cycle Test Continuously raises and lowers the bail. Drop Sensor
Drop Sense
Cable
Bail Sensor Flag
Bail; Drive
Mechanics
Main PCA
Line Detect
Sensor
Tests and verifies operation of color detection
capability. Also checks line detect LED.
Line Detect LED
Pens