GRAPHTEC FC 4500 Series Service Manual page 65

How to install the X Home Sensor
(1) Reattach the X Home Sensor in the reverse order in which it was detached.
(2) Move the Y bar to the far left side, and then confirm the X Home Sensor Dog is not touched to the X
Home sensor. Adjust the X Home Sensor position when the X Home Sensor Dog is touched to the X
Home sensor.
(3) Perform the Home Position Adjustment when the X Home Sensor is reinstalled (See section 7.10.).
The X direction of Origin position will be shifted a little when the X Home Sensor is reinstalled.
FC4500-UM-251-9370
X Home Sensor Dog
X Home Sensor
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6 REPLACEMENT PROCEDURES