Lexmark Optra C710 Service Manual - Page 32
Operational Theory, Interlock Mechanism
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5016-001 Operational Theory Interlock Mechanism When the front cover assembly, fuser cover or cartridge cover is open, a CLOSE DOOR message displays indicating the interlock system is open. If the front door assembly or the fuser cover are closed, the door switch actuator 3 [A] moves in the direction of arrow [B]. When the cartridge door is closed the door switch actuator 1 [C] rotates in the direction shown by arrow [D] and activates the door switch [E] and laser switch [F]. If either of these doors are not closed, actuator 1 [C] will not rotate and the switches will not turn on. When door switch [E] is not activated, it prevents the LVPS from supplying power to the printer. When the laser switch [F] is not activated, the engine board will not turn the printhead on. 1-8 Service Manual