HP P2050 manual 1Basic problem solving, Problem Cause Solution

Basic problem solving

Table 7-1Basic problem solving

Problem	Cause	Solution
When the product is connected to a	No power to the product.	1. Verify that the power switch is
correctly grounded power source, the		turned on.
LEDs on the control panel do not		2. Verify that the power cable is
illuminate and the main motor does not
rotate.		correctly plugged into the outlet and
The product does not turn on.		the product.
		3. Verify that the power outlet has the
		correct voltage.
	The power inlet/switch cable assembly is	Replace the power inlet/switch cable
	defective.	assembly. See Inlet-cable assembly
		on page 150.
	The ECU is defective.	Replace the ECU. See Engine controller
		unit (ECU) on page 163.
When turned on, the LEDs on the control	The print-cartridge door is open.	Close the print-cartridge door.
panel light up, but the main motor does
	Media is jammed in the paper path.	Clear all media from the paper path, and
not rotate.
		make sure that all sensors are working
The product turns on, but the motor does		correctly.
not rotate.
	The cable is not connected correctly.	Reconnect the motor cable.
	The motor is not mounted correctly in the	Verify that the motor is connected
	product chassis.	correctly and that it rotates freely.
	A gear is damaged or jammed.	Replace the gear assembly. See Paper-
		pickup-gear assembly on page 134.
	The ECU is defective.	Replace the ECU. See Engine controller
		unit (ECU) on page 163.
	The main motor is defective.	Replace the motor. See Main motor
		on page 174.
The product turns on and the motor	The control-panel cable is not connected	Reconnect the control panel cable.
rotates, but none of the control-panel	correctly.
lights turn on, and pressing the control-
	The control panel is defective.	Replace the control panel. See Top-
panel buttons has no effect.
The product is unresponsive.		cover assembly on page 124.
	The formatter is defective.	Replace the formatter. See Formatter
		PCA; HP LaserJet P2030 Series
		on page 130 or Formatter PCA; HP
		LaserJet P2050 Series on page 132.

The product is on, but the control-panel lights indicate that the product is not in the "ready" state.

The product is not "ready."

The product has an internal error that was detected during the Power-On Self- Test sequence.

Consult the list of control-panel light patterns to identify and correct the error.

188 Chapter 7 Solve problems ENWW