Print when ever the toner is running out one side of the page the print doesn't show so well, I change the toner and the same the toner is still faded on one side of the page of printed material? Is there something I have to clean in the machine so that both sides print well?

Cleaning a laser printer can solve minor problems, maintain print quality, and prolong periods between professional cleanings. Clean your printer when print quality deteriorates or when you change toner cartridges. Manually Cleaning Inside the Printer Steps: 1. Unplug the printer from the surge suppressor. 2. Remove the internal paper trays. 3. Remove the toner cartridge and place it on a piece of scrap paper. 4. Clean inside the toner cavity with a dry, lint-free cloth and brush (if a brush is supplied with the printer). 5. Clean the printer mirror gently with the brush. Don't touch the mirror if a brush isn't provided. 6. Wipe away dust and spilled toner. Remove paper fragments. 7. Clean the rollers, but don't touch the sponge roller. 8. Replace the toner cartridge. Tips: To remove unfused toner from the rollers following a paper jam, print 5 to 10 blank pages on scrap paper. Wipe toner from clothing if necessary, then immediately wash toner-soiled clothes in cold water. Go to your printer manufacturer's Web site (see Related Sites) for detailed cleaning instructions. Warnings: Don't use any liquid cleaners inside the printer. Initiating Automatic Cleaning Through Printer Software Steps: 1. Open the printer software by double-clicking on a printer icon or specific printer utility program, or opening a document and then selecting Print from the File menu. 2. In the printer software, look for a button labeled Options, Troubleshooting, Toolbox, Printer Utilities or something similar. (This varies by manufacturer.) 3. Follow the instructions on the screen. 4. Repeat the cleaning process if the results aren't satisfactory.