Pro 7900 and 9900 Field Repair Guide 10/6/10
Sensor (Edge Detector) Removal Printer Component, Software Item, LCD Display, Printer Button Page 173.
Sensor (Edge Detector) Removal
1. Release the Carriage Mechanism.
1.1 Enter Self Testing mode: Down, Right, and OK buttons, and turn on the Printer.
1.2 Navigate to SELF TESTING\Mecha Adjustment\IM Sensor Gap
1.3 Press the Right Arrow to display the [Enter] Start.
1.4 Press the OK button to release the Carriage.
2. Move the Carriage Mechanism off of the “capped position”.
3. Unplug the Printer.