Part Purpose
Sensors Inlet sensor (PS1501) Detects paper jams
Bin 1 paper sensor (PS1504) Detects whether bin 1 contains paper
Bin 2 paper sensor (PS1506) Detects whether bin 2 contains paper
Bin-1-full sensor (PS1503) Detects whether bin 1 is full
Bin-2-full sensor (PS1505) Detects whether bin 2 is full
Bin-3-full sensor (PS1507) Detects whether bin 3 is full
Switch Printer-recognition switch (SW1501) Detects whether the MBM and the engine are
properly connected (interruption of +5V)
Fan Cooling fan (FM1501) Cools the electrical parts under the paper delivery
Table 4-4 MBM driver components (continued)
166 Chapter 4 Theory of operation ENWW
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