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Lexmark T650 Series Service Manual

Lexmark T650 Series
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Sensor (toner empty) service check
NVRAM mismatch failure (950.00 through 950.29) service check
3
Check the above sensor for proper connection.
Is the above sensor connected properly?
Replace the
sensor (mailbox
empty).
Go to “5-bin
mailbox sensor
(media bin
empty) removal”
on page 4-91.
Replace the
connection.
4
Perform a print test using the output option.
Does the error continue?
Replace the output
option.
Problem solved.
Step Check Yes No
1 Check the sensor (toner empty) for proper installation.
Is the above component properly installed?
go to step 2. Reinstall the
sensor (toner
empty)
2
Check the sensor (toner empty) for proper operation.
1. Enter the diagnostic mode
2. Select Base sensor test
3. Observe the line item “toner”
Does the display on the operator panel, change every time
the sensing area of the above sensor is interrupted or
blocked?
The sensor is
working properly.
Go to step 3.
3
Check the above sensor for proper connection.
Is the above sensor connected properly?
Replace the
sensor (toner
empty).
Go to “Sensor
(toner empty)
removal” on
page 4-70.
Replace the
connection.
Warning: When replacing any of the following components:
Operator panel assembly
System card assembly
Only replace one component at a time. replace the required component and perform a POR before replacing
a second component listed above. If this procedure is not followed, the printer will be rendered inoperable.
Never replace two or more of the components listed above without a POR after installing each one or the
printer will be rendered inoperable.
Warning: These components can be used as a method of troubleshooting as long as the machine is booted
into diagnostic mode or is operating in diagnostic mode. Once a component has been installed in a machine
and powered up into user mode, it cannot be used in another machine. It must be returned to the
manufacturer.
Step Check Yes No
1 Check the operator panel assembly.
Was the operator panel assembly recently replaced?
Go to step 3. Go to step 2.
Step Check Yes No

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Lexmark T650 Series Specifications

General IconGeneral
Print TechnologyMonochrome Laser
Print SpeedUp to 45 ppm
Print Resolution1200 x 1200 dpi
Monthly Duty CycleUp to 200, 000 pages
Standard Output Capacity250 sheets
Processor Speed500 MHz
ConnectivityUSB, Ethernet
Maximum Paper Size8.5 x 14 inches
Operating System CompatibilityWindows, Mac OS, Linux
Memory128 MB, expandable to 640 MB
Standard Input Capacity650 sheets

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