Ricoh MP 7503SP Field Service Manual page 156

2. Installation
10. Pull the heater harness through the left side of the scanner unit.
11. Disconnect the left edge cover [A], and then remove it, so you can see cut-out [B].
12. Insert a screwdriver into the cut-out [A], and then loosely fasten the left end of the heater.
13. Attach the right end of the heater [B].
14. Tighten both screws.
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