Troubleshooting Print Overflow/Overrun Errors w/LaserJet 4

• Microsoft Windows operating system versions 3.1, 3.11
• Microsoft Windows 95

SYMPTOMS

When you print from a Windows-based application to a Hewlett-Packard (HP) LaserJet printer, you may receive a print "overrun" or "overflow" error. LaserJet printers display either error 20 or error 21, both of which are defined as "Printer out of memory." This error is most likely to occur when you print certain BorderArt images from Publisher 2.0 that contain circles, such as the Hearts or Hypnotic BorderArt images to a Hewlett-Packard (HP) LaserJet 4 printer using printer driver versions 3.1.18 and earlier.

CAUSE

These errors occur when information sent to the printer exceeds the amount of installed printer memory.

MORE INFORMATION

The HP-GL/2 printer language is strictly vector based. It defines a curve using a recursive algorithm creating a series of very short lines. Some basic objects such as a circle in BorderArt are printed by defining thousands of lines. This may overflow the printer's memory. Adding memory to the printer does not necessarily resolve the error message.

In raster mode, images are interpreted as bitmaps, so the printer memory does not become overloaded with a large number of line descriptions.

RESOLUTION

Several options that can help prevent these errors are listed below.

NOTE: These workarounds assume you are using Microsoft Publisher; however, they apply to many other Windows-based programs. The exact steps for adjusting printer options may vary in your application.

Windows 3.1x

Workaround 1:

Turn on page protection. To do this:

1. Run Windows Control Panel.

2. Double-click the Printers icon.

3. Select the entry for the LaserJet under Installed Printers, then choose Setup.

4. In the Page Protection box, select either Letter or On.

   ARTICLE-ID: Q104971
   TITLE     : "Error 21" Print Overrun on HP LaserJet 4 Printer

Switch from HP-GL/2 mode to raster mode.

NOTE: Only LaserJet 4 printers have this option.

1. Run Windows Control Panel.

2. Double-click the Printers icon.

3. Select the entry for the LaserJet under Installed Printers, then choose Setup.

4. Choose the Options button.

5. In the Graphics Mode box, change HP-GL/2 to Raster.

Lower the print resolution.

NOTE: Try this change for both types of printing on the LaserJet 4 (raster and HP-GL/2).

1. Run Windows Control Panel.

2. Double-click the Printers icon.

3. Select the entry for the LaserJet under Installed Printers, then choose Setup.

4. Do one of the following:

       - Change the value for Printer Resolution to a lower value.
   

         -or-
   

       - Choose the Options button. In the Graphics Quality box, change the
         value from High to either Medium or Low.
   

Use a LaserJet III printer driver. To do this:

1. Run Windows Control Panel.

2. Double-click the Printers icon.

3. Select the LaserJet III, then click the Set As Default Printer button. If a LaserJet III is not available, do the following:

   a. Choose the Add button.

   b. Select HP LaserJet III from the list.

   c. Choose Install and follow the prompts.

   d. Set the LaserJet III as your default printer.

Print to the LaserJet using an add-on PostScript option.

NOTE: This workaround can be used only if the printer came with a PostScript option installed.

1. Run Windows Control Panel.

2. Double-click the Printers icon.

3. Select the appropriate HP PostScript model.

4. Click the Set As Default Printer button.

1. Run Windows Control Panel.

2. Double-click the Printers icon.

3. Choose the Add button.

4. Select the appropriate HP LaserJet model with PostScript from the list.

5. Choose Install, and follow the prompts.

6. Select the printer, and set it as your default printer.

Windows 95

1. Click the Start button, point to Settings, and then click Printers.

2. Use the right mouse button to click the HP LaserJet 4 printer, and then click Properties on the menu that appears.

3. Click the Paper tab, and then verify that the paper size and orientation settings match the document you are trying to print.

4. Click the Device Options tab, and then enable the Page Protection option.

5. Verify that the Printer Memory setting matches your printer's configuration.

6. Click OK.