Diagnostic information 2-113
7526
920.10—POST—Three toner sensors not connected error service check
Step Questions / actions Yes No
1 Remove the left cover. See “Left cover
removal” on page 4-23. Check all toner level
sensor cables (A) connected to the rear of the
HVPS.
Are any of the cables damaged?
If one or two of the toner
level sensor are damaged:
• Disconnect the
sensor(s), and
• Go to step 2.
If two toner level sensors
are damaged, replace the
damaged sensor. See
“Toner level sensor
removal” on page 4-174.
Go to step 2.
2
Disconnect one of the toner level sensors,
and POR the MFP. See “Toner level sensor
removal” on page 4-174.
Does the 910.10 error occur again?
Then this is one of the
three bad toner level
sensors. Continue
disconnecting the toner
level sensors until three
sensors are disconnected
and the 920.10 error
occurs.
Replace the toner level
sensors that are
disconnected. See “Toner
level sensor removal” on
page 4-174.
Repeat this step for the
other toner level sensors
until the 920.10 error
occurs.
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