LaserJet 4 Plus prints garbage (357 Views)
Occasional Advisor
brian costea
Posts: 14
Registered: ‎07-28-2004
Message 1 of 2 (357 Views)

LaserJet 4 Plus prints garbage

My LaserJet 4 Plus is connected to my PC running XP Pro. It was working fine yesterday, and now it prints a bunch of symbols and what looks to be code.
Honored Contributor
Honored Contributor
Posts: 5,276
Registered: ‎06-22-2004
Message 2 of 2 (357 Views)

Re: LaserJet 4 Plus prints garbage

Hi, Brian,

Perform a self-test to be sure that the HP LaserJet printer is functioning properly. If the self-test is not correct, remove all cables and accessories (if any) and print a self-test again. If the self-test is still not correct, service the printer. If the self-test is correct, go to the next step.

Reseat or replace the cable. Check the cable for bends or pressure applied by objects resting on the cable. A faulty cable or cables that do not meet the IEEE-1284 Standard can cause print defects by distorting signals.

Print a directory from MS-DOS by using the following steps:

Verify the printer is turned on and is in the Ready state.

Restart the computer and access the command prompt only:

From the taskbar, select Start, Accessories, and Command Prompt.

At the C:\ prompt, type DIR>LPT1 (replace LPT1 with the name of the port the printer is attached to if it is attached to another LPT port), then press Enter

Disconnect printer from the power source and plug directly into wall outlet. This is for testing purposes only. It is not recommended that HP LaserJet series printers be connected permanently to a power outlet without a surge protector.

Hook the printer up to another computer and print a directory. If the directory prints, there could be a problem with the computerâ s port. Try changing the parallel port mode on the computer to ECP or bidirectional. When changing to ECP, also change the Parallel Port mode to Enabled. If these modes do not work, try any others that are available. For instructions on changing Parallel Port mode, see the computerâ s documentation or call the computerâ s manufacturer.

Disable any TSRs that are running in the background, except for Explorer and Systray.

Simultaneously press and release the Ctrl, Alt, Delete Keys to open the Windows Security Window and shut down all applications and TSR's.

Click the Task Manager button and then select the Application tab.

Highlight one item and then click End Task.

Repeat this procedure until all programs are closed.

Close the Windows Task Manager screen.

If the correct driver is selected, but there is still garbled text in Windows, go into the Printer Properties dialog box and change the settings. Use several different settings and see if the text prints correctly. If applicable, change from the PCL 6 print driver to the PCL 5e driver.
The opinions expressed above are the personal opinions of the authors, not of HP. By using this site, you accept the Terms of Use and Rules of Participation.