Sensor (Toner Empty) Service Check - Lexmark T650 Service Manual

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Step
3 Check the above sensor for proper connection.
Is the above sensor connected properly?
4 Perform a print test using the output option.
Does the error continue?

Sensor (toner empty) service check

Step
1 Check the sensor (toner empty) for proper installation.
Is the above component properly installed?
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?
3 Check the above sensor for proper connection.
Is the above sensor connected properly?
NVRAM mismatch failure (950.00 through 950.29) service check
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
1 Check the operator panel assembly.
Was the operator panel assembly recently replaced?
2-146
Service Manual
Check
Check
Check
Yes
Replace the Replace the
sensor (mailbox connection.
empty).
Go to "5-bin
mailbox sensor
(media bin
empty) removal"
on page 4-91.
Replace the output Problem solved.
option.
Yes
go to step 2. Reinstall the
sensor (toner
empty)
The sensor is Go to step 3.
working properly.
Replace the Replace the
sensor (toner connection.
empty).
Go to "Sensor
(toner empty)
removal" on
page 4-70.
Yes
Go to step 3. Go to step 2.
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No
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No
No