DRUM & DEVELOPER initialization RICOH MP2352 MP2852 MP3352

PCU PHOTOCONDUCTOR UNIT Ricoh Aficio MP2352SP MP2852 MP2852SP MP3352SP every 60k copies. The PCU consists of the OPC drum, development unit, charge roller, and cleaning unit. Follow the cautions below when handling a PCU. Never touch the drum surface with bare hands. When the drum surface is touched or becomes dirty, wipe it with a dry cloth or clean it with wet cotton. Wipe with a dry cloth after cleaning with the cotton. Never use alcohol to clean the drum; alcohol dissolves the drum surface. Store the PCU in a cool, dry place away from heat. Never expose the drum to corrosive gases such as ammonia gas. Never shake the used PCU. Doing so may cause toner and/or developer to spill out. Dispose of used PCUs in accordance with local regulations. Turn off the main power switch and disconnect the power cord before you start any of the procedures in this section. Drum and Developer Unit D120-3000, D1203000, D120-3003, D1203003 AFTER REPLACEMENT PCU go into the SP mode and do SP2-801 (Developer Initialization). Make 5 sample copies. Check the copies. If the copies are clean (no black dots), the replacement is completed. SP2801. This initializes the developer and resets the TD and ID sensor outputs to their defaults. It also resets the PCU counter. Service Call Conditions sc391 sc392: Development bias leak, TD sensor initial setting error. 1. Replace the harness of the ID sensor. 2. Replace the the ID sensor. 3. Replace the harness of the TD sensor. 4. Replace the TD sensor. Drum...