Sensor (Control Panel Door Interlock); Sensor (Rear Door Interlock); Main Cooling Fan; Cartridge Cooling Fan - Lexmark MS81x Service Manual

Machine type 4063-2xx, -4x0, -63x, -83x

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Controller board

Sensor (control panel door interlock)

The sensor is a safety device to cut off a 24 VDC power supply from the LVPS to the high volt power supply (HVPS),

controller board, and to the main drive motor assembly, while the control panel door is open.

The sensor is a safety device to cut off a 24 VDC power supply from the LVPS to the HVPS, controller board, and to the

main drive motor assembly, while the printer rear door is open.

The main cooling fan discharges air from the printer to provide cooling to this area of the printer.

The imaging unit cooling fan discharges air from the print cartridge area to provide cooling to this area of the printer.

The Duplex cooling fan discharges air from the duplex drive motor area to provide cooling to this area of the printer.

The fuser cooling fan discharges air from the fuser area to provide cooling to this area of the printer.

Main cooling fan

Appendix C: Theory of operation

Print cartridge

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