Page: 66Service Guide OL400Chapter 3 Maintenance & Disassembly3.4 CLEANING3.4.01 General InformationRemove any dropped toner and dust. Clean inside and around the printer with a vacuum cleanerwhen necessary.CAUTION:Do not touch the image drum, the LED head, or the LED head connector block.3.4.02 Cleaning the Static Charge Wire1. Turn OFF the power supply switch, and press the "OPEN" button and raise the stacker cover.2. Push the two lock levers backward and lift the LED holder.3. Clean the static charge wire by moving the blue wire cleaner of the image drum cartridge to theleft and right.4. Place the blue wire cleaner in its original position (to the right).3.4.03 Cleaning the Transfer Charge WireCAUTION:Do not press strongly when cleaning or you will break the transfer wire.1. Push the two lock levers backward to lift the LED holder, and take out the wire cleaner.2. Close the LED holder.3. Raise the upper unit.4. Clean the transfer charger by pressing the wire cleaner to the transfer charger assembly. Slideit several times to the left and right, and clean the transfer wire.5. Return the wire cleaner to its original position.3.4.04 LED Lens Array1. Clean the LED lens array when vertical white lines or "blank" spots appear on the output.2. Place the LED lens cleaner pad against the LED lens array.3. Slide the cleaner pad horizontally several times to clean the head. Use a clean area of the padon each pass.4. Discard the pad.