Ricoh Aficio SP 1200SF User's Guide - Page 151
Cleaning the corona wire
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d Put the drum unit and toner cartridge assembly back in the machine. Troubleshooting and routine maintenance c Slowly take out the drum unit and toner cartridge assembly. e Close the front cover. f Plug the machine's power cord back into the electrical socket first, and then plug in the telephone line cord. Turn on the machine. Cleaning the corona wire B If you have print quality problems, clean the corona wire as follows: a Turn off the machine. Unplug the telephone line cord first, disconnect all cables, and then unplug the power cord from the electrical socket. b Open the front cover. CAUTION We recommend that you place the drum unit and toner cartridge assembly on a clean, flat surface with a sheet of disposable paper or cloth underneath it in case you accidentally spill or scatter toner. Handle the toner cartridge carefully. If toner scatters on your hands or clothes, wipe or wash it off with cold water at once. To prevent damage to the machine caused by static electricity, DO NOT touch the electrodes shown in the illustration. B 141