Interlock or linkage Location Purpose
Laser/scanner shutter linkage Under the laser/scanner Pushes up on the shutter pin under the
laser/scanner.
Laser/scanner shutter pin On the bottom of the laser/scanner Opens the laser/scanner shutter. The
shutter is spring loaded and normally
closed. When the cartridge is installed,
the shutter will open.
Cartridge presence sensor (SR9) Behind the front cover Detects an installed cartridge.
Table 6-41 Interlocks and linkages (continued)
556 Chapter 6 Troubleshooting ENWW
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