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3.9 Replacing the Gap/Black Mark Sensor Module
1. Refer to section 3.1 to remove the electronics cover.
2. Disconnect the gap/black mark sensor connector on the main board.
3. Open the printer right side cover.
4. Unlock the media sensor lock lever.
5. Make the media sensor module approach the end of mechanism but not too close.
6. At the bottom of the gap/black mark sensor module, there is a green plastic tab to latch
the sensor module to the mechanism. Use a piece of label/paper which can fit the path of
the media sensor module and make the label/paper though the path and under the tab.
