HP 3030 Service Manual - Page 236

Vertical white stripes appear. Cause The media does not meet HP specifications (for example, it is too moist or too rough). The toner is low. If copying with the ADF, the ADF glass is dirty. Solution Make sure that the media meets specifications detailed in the HP LaserJet Printer Family Print Media Guide. Gently shake the print cartridge back and forth to redistribute the toner. 1. Clean the ADF glass. See Cleaning the product. 2. If the problem persists, replace the print cartridge. 3. If the problem persists, replace the fuser assembly. See, Fuser. Copies or scanned images are too light or too dark. Cause The contrast is not set correctly. The original image is very light or very dark. The scanned image is too light or too dark because the original was on colored paper. Solution 1. Adjust the contrast and resolution settings on the control-panel menu (see, Control-panel menu structure) or from the HP Toolbox. 2. Check that the contrast and resolution settings are correct. See the user guide for more information. Adjust the resolution and contrast setting(s) on the control-panel menu (see, Control-panel menu structure) or from the HP Toolbox. If the original was on a colored paper, including brown recycled paper, the text might not be clear. Adjust the resolution, contrast, and brightness settings from HP Toolbox. 218 Chapter 6 Troubleshooting ENWW