2-148 Service Manual
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 4-92.
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 4-71.
Replace the
connection.
Warning: When replacing any of the following components:
• NVM card assembly (T656 only)
• System card assembly (All models)
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
Step Check Yes No
• Operator panel assembly (5230n/dn, 5350dn, and 5530dn)
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