Toner meter cycle (TMC) card service check
Actions Yes No
Perform the Base Sensor Test:
a Enter Diagnostics menu.
Turn the printer on, press and hold 3 and 6, and release the buttons
with the installed memory and processor speed displays.
b Select Base Sensor Test, and press Select.
c Select the sensor you want to test, open the toner door, remove the
corresponding toner cartridge, and press Select .
d Note whether the operator panel shows a change in state.
Note: If the reflective disk is not showing on the cartridge, then rotate
the gear clockwise to expose the reflective surface.
For additional information about the Base Sensor Test, see “BASE SENSOR
TEST” on page 176.
Does the operator panel display a change of state?
Replace the toner
cartridge.
Replace the toner
meter cycle (TMC)
card. See “Toner meter
cycle (TMC) card
removal” on page
298.
Dead printer service check
A dead printer is one which, when powered on from a known good electrical outlet, displays no indication of power to
the printer by changes to the LCD, LED, or any movement of the fan or motors. If the printer appears dead but makes
a beeping sound, check the operator panel. See “Operator panel (displays all diamonds, no beeps, or five beeps)
service check” on page 124.
If a 650-sheet Duo Drawer is installed, then remove the option and check the base printer for correct operation. If the
base printer operates correctly, replace the 650-sheet Duo Drawer.
Warning—Potential Damage: Observe all necessary ESD precautions when removing and handling the controller
board or any installed option cards or assemblies.
CAUTION—SHOCK HAZARD: When you see this symbol, there is a danger from hazardous voltage in the area of
the product where you are working. Unplug the product before you begin, or use caution if the product must
receive power to perform the task.
Note: Remove any input paper-handling options from the printer.
Actions Yes No
Step 1
Check the AC power voltage.
Is the line voltage correct?
Go to step 2. Inform the customer.
Step 2
is the AC power cord damaged?
Replace the line cord. Go to step 3.
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Diagnostic information
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