Samsung SCX-4300 User Manual (ENGLISH) - Page 51

Condition Horizontal stripes AaBbCc AaBbCc AaBbCc AaBbCc AaBbCc Suggested solutions If horizontally aligned black streaks or smears appear: • The toner cartridge may be installed improperly. Remove the toner cartridge and reinsert it. • The toner cartridge may be defective. Remove the toner cartridge and install a new one. See page 8.4. • If the problem persists, the machine may require repair. Contact a service representative. Curl If the printed paper is curled or paper does not feed into the machine: • Turn over the stack of paper in the tray. Also try rotating the paper 180° in the tray. • Try printing to the rear cover. Copying problems Condition Suggested solutions Copies are too light or Use Darkness to darken or lighten the background too dark. of the copies. Smears, lines, marks, or spots appears on copies. • If defects are on the original, use Darkness to lighten the background of your copies. • If no defects are on the original, clean the scan unit. See page 8.2. Copy image is skewed. • Ensure that the original is face down on the document glass. • Check that the paper is loaded correctly. Blank copies print out. Ensure that the original is face down on the document glass. Image rubs off the copy easily. • Replace the paper in the paper input tray with paper from a new package. • In high humidity areas, do not leave paper in the machine for extended periods of time. Frequent copy paper jams occur. • Fan the stack of paper, then turn it over in the paper input tray. Replace the paper in the paper input tray with a fresh supply. Check/adjust the paper guides, if necessary. • Ensure that the paper is the proper paper weight 80 g/m2 (20 lb bond) paper is recommended. • Check for copy paper or pieces of copy paper remaining in the machine after a paper jam has been cleared. Condition Suggested solutions Toner cartridge produces fewer copies than expected before running out of toner. • Your originals may contain pictures, solids, or heavy lines. For example, your originals may be forms, newsletters, books, or other documents that use more toner. • The machine may be turned on and off frequently. • The document cover may be left open while copies are being made. Scanning problems Condition Suggested solutions The scanner does not work. • Make sure that you place the document to be scanned face down on the document glass. • There may not be enough available memory to hold the document you want to scan. Try the Prescan function to see if that works. Try lowering the scan resolution rate. • Check that the USB cable is connected properly. • Make sure that the USB cable is not defective. Switch the cable with a known good cable. If necessary, replace the cable. • Check that the scanner is configured correctly. Check scan setting in the SmarThru Configuration or the application you want to use to make certain that the scanner job is being sent to the correct port, for example, LPT1. The unit scans very slowly. • Check if the machine is printing received data. If so, scan the document after the received data has been printed. • Graphics are scanned more slowly than text. • Communication speed slows in scan mode because of the large amount of memory required to analyze and reproduce the scanned image. Set your computer to the ECP printer mode through BIOS setting. It will help to increase the speed. For details about how to set BIOS, refer to your computer User's Guide. 9.9 Troubleshooting