IBM 102 User Manual page 117

2. Lock the blue locking lever.
B lu e L o c k in g L e v e r
3. Center the blue sliding guide between the roller assemblies.
B lu e S lid in g G u id e
4. Close the access cover. Then close the paper door by pulling it
out and pushing it down until it latches.
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Chapter 1. Setting Up the 4230 Printer