Electrical Components And Controller - Lexmark 7462 series Service Manual

Electrical components and controller

Switch (printer front door interlock)
The switch is a safety switch to cut off a 24 VDC power supply from the LVPS card assembly to the high volt
power supply (HVPS) card assembly, printer system card assembly and to the main drive motor assembly, while
the printer front door assembly is open.
Main cooling fan
The main cooling fan discharges air from the printer to prevent excessive temperature increase.
Print cartridge cooling fan
The print cartridge cooling fan discharges air from the print cartridge area to prevent excessive temperature
increase.
Duplex cooling fan
The duplex cooling fan discharges air from the duplex drive motor area to prevent excessive temperature
increase.
# Part
1 LVPS card assembly
2 Duplex cooling fan
3 Print cartridge cooling fan
4 HVPS card assembly
5 System card assembly
6 Main cooling fan
Appendix C: Theory of operation
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7462