Brother International HL-3400CN Service Manual - Page 185

CHAPTER 6 PERIODIC MAINTENANCE 2.6 Cleaning the OPC Belt Cartridge The OPC belt cartridge should be cleaned according to the periodic maintenance cleaning cycle set out in Table 6-3. A PRECAUTION • Do not directly touch the OPC belt surface with bare hands or gloves. • If the belt is exposed for more than two minutes to a light source of 800 lux, the belt may be damaged. Ail fi Tools to Prepare Cotton cloth (2 - 3 pieces) Cleaning Procedure (1) Turn off the power supply. (2) Open the top cover and the front cover. (3) Release the belt cartridge lock levers to pull out the OPC belt cartridge. (4) Clean the OPC belt cartridge. i) Clean the corona wire with the wire cleaner. Slide it backwards and forwards across the corona wire several times and then return it to the home position. Failure to return the cleaner correctly will result in vertical stripes down the printed page. ii) Clean the OPC belt cartridge case with a cotton cloth. OPC belt cartridge Wire cleaner Fig. 6-7 A CAUTION Do not damage the corona wire when cleaning the corona wire. 6-14