Lexmark T650 Series Service Manual

3-76 Service Manual
4062-XXX
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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.
LVPS card assembly
The LVPS card assembly generates low voltages 5V for logic circuits, 5 V for laser diodes and 24V for cooling
fans. The LVPS is switchable and can be switched to work with 100V, 110 and 220V machines.
HVPS card assembly
The HVPS card assembly generates AC power and feeds it to the developer roll, the transfer roll assembly and
the charge roll assembly.
Main cooling fan
System card
assembly
LVPS card
assembly
Duplex
cooling fan
Print cartridge
cooling fan
HVPS card
assembly

Lexmark T650 Series Specifications

General

Print Technology	Monochrome Laser
Print Speed	Up to 45 ppm
Print Resolution	1200 x 1200 dpi
Monthly Duty Cycle	Up to 200, 000 pages
Standard Output Capacity	250 sheets
Processor Speed	500 MHz
Connectivity	USB, Ethernet
Maximum Paper Size	8.5 x 14 inches
Operating System Compatibility	Windows, Mac OS, Linux
Memory	128 MB, expandable to 640 MB
Standard Input Capacity	650 sheets