Chapter 1313-211. As a rule, perform scheduled servicing work every 250,000 pages.2. Before setting out for a scheduled visit, check with the Service Book, and take parts that are likely to need replacement.3. Whenever you have cleaned a charging wire, make sure it is completely dry before mounting it back to the machine.4. If the power plug is left connected for a long time in an area subject to excessive dust, umidity, or smoke (containing oil vapor), an insulationfault and, ultimately, a fire can occur (owing to the build-up of moist dust).Be sure to disconnect the power plug on a periodical basis, and wipe the area and the power plug clean with a dry cloth.T-13-12Points to Note When Cleaning/Replacing the Charging Wire or Replacing the Charging Wire CleanerAt the end of the following, always check to make sure that the charging wire is in the middle of the charging wire cleaner; otherwise, image faults canoccur:a. If you have cleaned the charging wire.b. If you have replaced the charging wire.c. If you have moved the charging wire cleaner by hand.d. If you have replaced the charging wire.F-13-20T-13-13As of October 2004No. Step Checks Remarks1 Checks Check the general condition.2 Take notes of the counterreadings.Check the faulty copies:3 Make test copies. a. Image for densityb. White background forsoilingc. Characters for clarityd. Margin along leadingedgee. Fixing, registration, andback (for soiling)Standard (single-sided)Leading edge: 4.0+1.5/-1.0 mmLeft/right: 2.5 ±1.5 mmTrailing edge: 2.5 ±1.5mm4 Clean the chargingassemblies:- Charging wire (primary,pre-transfer, transfer/separation)- Grid wire (primarychargingassembly)- Shielding plate (eachchargingassembly)- Roller electrodeStandard (single-sided)Leading edge: 4.0+1.5/-1.0 mmLeft/right: 2.5 ±1.5 mmTrailing edge: 2.5 ±1.5mmCorrect