HP laserjet 2015 series Instruction De Maintenance

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Basic problem solving
Table 7-1
  Basic problem solving
When the product is connected to a correctly grounded power source, the LEDs on the control panel do not
illuminate and the main motor does not rotate.
The printer does not turn on.
Cause
Solution
No power to the printer.
1.
Verify that the power switch is turned on.
2.
Verify that the power cable is correctly plugged into the
outlet and the printer.
3.
Verify that the power outlet has the correct voltage.
The power inlet/switch cable assembly is defective.
Replace the power inlet/switch cable assembly.
The ECU is defective.
Replace the ECU.
When turned on, the LEDs on the control panel light up, but the main motor does not rotate.
The printer turns on, but the motor does not rotate.
Cause
Solution
The print cartridge door is open.
Close the print cartridge door.
Media is jammed in the paper path.
Clear all media from the paper path and make sure that all
sensors are working correctly.
The motor cable is not connected correctly.
Reconnect the motor cable.
The motor is not mounted correctly in the printer chassis.
Verify that the motor is connected correctly and that it
rotates freely.
A gear is damaged or jammed.
Replace the gear assembly.
The ECU is defective.
Replace the ECU.
The main motor is defective.
Replace the motor.
The printer turns on and the motor rotates, but none of the control panel lights turn on, and pressing the control
panel buttons has no effect.
The printer is unresponsive.
Cause
Solution
The control panel cable is not connected correctly.
Reconnect the control panel cable.
The control panel is defective.
Replace the control panel.
The formatter is defective.
Replace the formatter.
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Chapter 7   Problem solving
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