[. . . ] SCX-4300 Series Multi Functional Printer User's Guide imagine the possibilities Thank you for purchasing a Samsung product. To receive a more complete service, please register your product at www. samsung. com/global/register © 2008 Samsung Electronics Co. , Ltd. Samsung Electronics is not responsible for any direct or indirect damages, arising from or related to use of this manual. · Samsung and Samsung logo are trademarks of Samsung Electronics Co. , Ltd. [. . . ] Contact a service representative. · Ensure that the paper is loaded properly. · Try printing to the rear cover. · Clean the inside of the machine. Contact a service representative. A 9. 8 Troubleshooting Character voids are white areas within parts of characters that should be solid black: · If you are using transparencies, try another type of transparency. Because of the composition of transparencies, some character voids are normal. See page 3. 2. Condition Horizontal stripes Suggested solutions If horizontally aligned black streaks or smears appear: · The toner cartridge may be installed improperly. If the printed paper is curled or paper does not feed into the machine: · Turn over the stack of paper in the tray. · Try printing to the rear cover. Condition Toner cartridge produces fewer copies than expected before running out of toner. Suggested solutions · 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 document cover may be left open while copies are being made. AaBbCc AaBbCc AaBbCc AaBbCc AaBbCc Curl Scanning problems Condition The scanner does not work. Suggested solutions · 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. 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. · Communication speed slows in scan mode because of the large amount of memory required to analyze and reproduce the scanned image. For details about how to set BIOS, refer to your computer User's Guide. Copying problems Condition Copies are too light or too dark. Suggested solutions Use Darkness to darken or lighten the background of the copies. · If defects are on the original, use Darkness to lighten the background of your copies. · 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. · Fan the stack of paper, then turn it over in the paper input tray. · 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. The unit scans very slowly. Frequent copy paper jams occur. 9. 9 Troubleshooting Condition Message appears on your computer screen: · "Device can't be set to the H/W mode you want. " · "Port is being used by another program. " · "Port is disabled. " · "Scanner is busy receiving or printing data. When the current job is completed, try again. " · "Invalid handle. " · "Scanning has failed. " Suggested solutions · There may be a copying or printing job in progress. [. . . ] Choose the number of copies you want and indicate which pages you want to print. Click Print when you finish setting the options. 33 Using Your Printer with a Macintosh Graphics The Graphics tab provides options for selecting Resolution(Quality) and Darkness. Select Graphics form the Presets' drop-down list to access the graphic features. Printer Settings Select Printer Settings from the list to access the following features: s Mac OS 10. 4 s Mac OS 10. 4 · Resolution(Quality): You can select the printing resolution. The higher the setting, the sharper the clarity of printed characters and graphics. [. . . ]