Brother International HL-3400CN Service Manual - Page 178
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HL-3400CN SERVICE MANUAL Periodic Maintenance Cleaning Work Table 6-3 No. Parts Name 1 Register Roller Cleaning Work Description 1. Open the transfer unit. 2. Clean roller and surrounding area using a dry cloth. 2 Paper Guide 3 Paper Exit Roller 1. Remove the media cassette from the printer. 2. Clean the paper guide using a dry cloth. 1. Open the top cover. 2. Clean the paper exit roller using a dry cloth. 1. Open the transfer unit. 4 Transfer Roller 2. Clean roller and surrounding area using a dry cloth. Paper 5 Discharging Roller 6 OPC Belt Cartridge 1. Open the transfer unit. 2. Remove the paper discharger. 3. Clean the corona wire and case, using a cotton swab. 1. Remove the OPC belt cartridge. 2. Clean up spilt toner around the OPC belt cartridge and cleaning blade. 3. Clean the corona wire with a cotton swab. Section 1.1 Cleaning Cycle *1 (Condition or Case) • Defective image • Smeared paper • 20K prints 1.2 20K prints 1.3 20K prints • Defective image 1.4 • Smeared paper • Periodic maintenance • Defective image 1.5 • Paper jam • Periodic maintenance 1.6 • Defective image • Periodic maintenance 6-7