I get error code C0840001 in the first four lines when running the printer self test. What does this mean?

Table of diagnostic beep codes compiled by AMI BIOS during power-on self test[8][9] Number of beeps

Meaning
1 - power-on self test successful
2 - Parity error in the first 64KiB of RAM
3 - Memory failure in the first 64KiB of RAM
4 - Same as 3, but also including a non-functional timer 1
5 - CPU error
6 - Error in the A20 line on the 8042 keyboard controller chip
7 - Generation of a CPU virtual mode exception signifying an error
8 - Read/write error when accessing system video RAM
9 - Mismatch between the calculated checksum of the ROM firmware and the expected value hardcoded into the firmware.
10 - Read/write error for the CMOS NVRAM shutdown register
11 - A fault in the L2 cache

The following lists the chain of events that occur when you turn on a printer. You can follow this list as one means of determining if the printer is operating correctly. The exact chain of events depends upon the last power down condition and where the printer has last determined the printhead is positioned, this is stored in non-volatile RAM. The Checklist is the primary reference for troubleshooting power-up problems.

1. Power cord is plugged in and the power switch is turned on:

2. Power supply senses AC line voltage conditions (110 VAC or 220 VAC)

and enables DC voltages. If an overload occurs, the printer turns off the high voltage DC supplies, causing a "blink" effect on the Control Panel LEDs.

3. BIST test flashes the PE LED very briefly at a fast rate until the end of the

next test.

4. The Boot loader performs CPU initialization and RAM test. It then sends

the boot loader version to the serial port.

5. Power-On Self Test (POST) initializes the Control Panel. The Control

Panel LED turns red, green, orange, and then off. The Control Panel LCD then goes black and then clear. The POST version displays on the LCD

and waits two seconds. During this time the operator can press the Back

button to bypass the remaining POST test.

6. Low level Power-On Self Test (POST) diagnostics are performed. The

Control Panel displays status messages as each sub-test is performed.

This test takes about 8 seconds. All LEDs are off during the test.

If POST diagnostics pass, the Control Panel displays the Xerox logo and turns on the green LED.

If the test detects an error, the error message displays on the LCD and the printer flashes the LEDs with a repeating error code pattern.

7. The VxWorks operating system is initialized and engine code is started.

This takes about 15 seconds. The Xerox logo is displayed.

8. Print Engine Self Test (PEST) diagnostics are then performed. These test

the heaters, clutches, motors and solenoids. As each clutch is tested, you hear clicking with four high tones as each motor is tested. This test takes about 30 seconds.

9. The printer now runs the mechanical initialization. The exact sequence
depends on the initial position of the printhead and wiper assembly.

The following lists the chain of events that occur when you turn on a printer.

You can follow this list as one means of determining if the printer is operating correctly. The exact chain of events depends upon the last power down condition and where the printer has last determined the printhead is positioned, this is stored in non-volatile RAM.

1. Power cord is plugged in and the power switch is turned on:

2. Power supply senses AC line voltage conditions (110 VAC or 220 VAC)

and enables DC voltages. If an overload occurs, the printer turns off the high voltage DC supplies, causing a "blink" effect on the Control Panel LEDs.

3. BIST test flashes the PE LED very briefly at a fast rate until the end of the

next test.

4. The Boot loader performs CPU initialization and RAM test. It then sends

the boot loader version to the serial port.

5. Power-On Self Test (POST) initializes the Control Panel. The Control

Panel LED turns red, green, orange, and then off. The Control Panel LCD then goes black and then clear. The POST version displays on the LCD and waits two seconds.

During this time the operator can press the Back button to bypass the remaining POST test.

6. Low level Power-On Self Test (POST) diagnostics are performed. The

Control Panel displays status messages as each sub-test is performed. This test takes about 8 seconds. All LEDs are off during the test. If POST diagnostics pass, the Control Panel displays the Xerox logo and turns on the green LED.

If the test detects an error, the error message displays on the LCD and the printer flashes the LEDs with a repeating error code pattern.

7. The VxWorks operating system is initialized and engine code is started.

This takes about 15 seconds. The Xerox logo is displayed.

8. Print Engine Self Test (PEST) diagnostics are then performed. These test

the heaters, clutches, motors and solenoids. As each clutch is tested, you hear clicking with four high tones as each motor is tested. This test takes about 30 seconds.

Error Code: 386, 387, 388, 389, 390, 391, 392, 393, 394, 395 Definition

There is too much noise on the line for a valid connection between two fax machines to complete. The noise problem might go away over time.

Solution

Retry the fax reception at a different time when telephone line conditions have improved. Call the telephone provider if line conditions fail to improve.

I would recommend first unplugging the device from both the rear of the machine and the wall outlet it is plugged into for thirty seconds. Plug the machine back in and see if the error message returns.

How to use the solutions in this document To resolve the issue, try each solution in this document, and then use the steps in this section to print a self-test report. This step determines if the product hardware functions correctly. When you have resolved the issue, and the product successfully prints a self-test report, there is no need to continue troubleshooting. Print a self-test page Follow these steps to print a self-test report.

1. Load plain paper in the paper tray.
2. Press the Power button ( ) to turn on the product.
3. Press and hold the Power button ( ).
4. Press the Resume button ( ) four times. The self-test page prints.

IMPORTANT : Try to print a self-test report after every solution even if the solution resolves the issue.

Do you have an Anti-Virus program installed on your PC? If so, can you try and disable it before you print.

for more help visit CBR Tech Solutions

Try reinstalling the printer driver.
You can download the HP printer drivers from their supportWEB site. Please click on this link and
select your model printer to download:- http://welcome.hp.com/country/us/en/support.html

o check printing capabilities, print a Self Test Report. In order to print such a test follow the next steps:

1. Turn the printer on and place media in the tray.Set the width adjusters to fit tightly against the sides of the paper in the tray.
   1. Press Power button while opening and closing the printer access door four times.
   2. Release the Power button.Your printer will print a test report.

I had the same problem and just talked with HP technician Neeta and she showed me how to fix it. It's a bit convoluted. In essence you have to clear the print spooler. Here is what she told me.

First you have to be clear that there really ISN'T a paper jam by printing a test message this back door way.

Neeta : The USB cable should be disconnected. Neeta: To print a self-test page, press and hold the Power button. Raise and lower the printer cover four times. Release the Power button, and the self-test page prints

If the sel-test page prints, this means you truly do not have a paper jam. Next, clear the print spooler

Neeta : The USB cable should be disconnected.Neeta : Now click on start->RUN.Neeta : Then type "services.msc".Neeta : Then it will open the services window.Neeta : Now please look for the option "print spooler. Neeta : Okay, now , please right click on the option "print spooler" and click on stop then click on start, 3 times.