HP color laserjet 2550 series Instruction De Maintenance

3. Turn the printer on and continue to hold   (Go) for at least 30 seconds, but fewer than

40 seconds.

4. Release   (Go).

The Attention, Ready, and Go lights are on during an NVRAM initialization.

5. The device lights will begin cycling from front to back. The NVRAM-initialization process

runs until the printer is in the Ready state.

This process is similar to a continuous self-test. For more information, see 

After the initialization is complete, you can use PJL commands to restore some of your
printer settings (see 

Use the following steps to print an error report:

1. Turn the printer off.

2. Press and hold   (Go).
3. Turn the printer on and continue to hold   (Go) for at least 40 seconds, but fewer than

50 seconds.

4. Release   (Go).

The Attention light turns off during the error report process.

The printer prints an error report.

Use the following steps to perform a super NVRAM initialization:

1. Turn off the printer.

2. Press and hold   (Go).
3. Turn the printer on and continue to hold   (Go) for at least 50 seconds.
4. Release   (Go)

The Ready light turns on during a super NVRAM initialization.

Use the following steps to perform a network card cold reset.

1. Make sure that the printer is in the Ready state.

2. Press   (Rotate Carousel) and   (Cancel Job) simultaneously.

There is no visual feedback from a network card cold reset.

Chapter 6 Troubleshooting

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