HP Color LaserJet Enterprise MFP M680 User Guide 1 - Page 181
Check the image-adjustment settings, Optimize fax quality for text or pictures
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3. Touch the Resolution button. 4. Select one of the predefined options. Touch the Save button. 5. Touch the Start button. Check the image-adjustment settings Adjust these additional settings to improve send-fax quality 1. From the Home screen on the product control panel, scroll to and touch the Administration button. 2. Open the following menus: ● Fax Settings ● Fax Send Settings ● Default Job Options 3. Touch the Image Adjustment button. 4. Adjust the sliders to set the Darkness level, the Contrast level, the Sharpness level, and the Background Cleanup level. Touch the Save button. 5. Touch the Start button. NOTE: These settings are temporary. After you have finished the job, the product returns to the default settings. Optimize fax quality for text or pictures Optimize the fax job for the type of image being scanned: text, graphics, or photos. 1. From the Home screen on the product control panel, touch the Fax button. 2. Touch the More Options button, and then touch the Optimize Text/Picture button. 3. Select one of the predefined options, or touch the Manually adjust button, and then adjust the slider in the Optimize For area. Touch the OK button. 4. Touch the Start button. NOTE: These settings are temporary. After you have finished the job, the product returns to the default settings. Check the error-correction settings The Error Correction Mode setting might be disabled, which can reduce image quality. Follow these steps to re-enable the setting. 1. From the Home screen on the product control panel, scroll to and touch the Administration button. 2. Open the following menus: ● Fax Settings ● Fax Send Settings ENWW Improve fax image quality 169