Table 19. Solving scanning (copying) image-quality problems (continued) Problem Cause Solution Copies or scanned images are too light or too dark. The contrast is not set correctly. 1. Adjust the contrast and resolution settings from the control panel menu or HP LaserJet Director or HP Document Manager. 2. Check that the contrast and resolution settings are correct. See the user guide for more information. The original image is very light or very dark. Adjust the resolution and contrast setting(s) from the control panel menu or toolbox on the HP LaserJet Director or HP Document Manager. The scanned image is too light or too dark because the original was on colored paper.
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 the toolbox on the HP LaserJet Director or HP Document Manager. Vertically- aligned black streaks or smears appear on successive pages. The printer needs to be cleaned. Clean the printer. (See “Cleaning the print path” on page 59.) If copying with the ADF, the ADF glass is dirty. Clean the ADF path. (See “Cleaning the product” on page 57.) A component is damaged. (For example, the photosensitive drum inside the print cartridge is scratched.) 1.
Replace the print cartridge if it is damaged and if maintenance procedures do not improve print quality. 2. Replace the scanner assembly. Scanned images have black dots or streaks. The scanner glass is dirty. Clean the ADF path and flatbed glass. (See “Cleaning the product” on page 57.) There is a problem with the scanner assembly. Replace the scanner assembly. EN Errors 195