Ricoh AC205 Service Manual - Page 107

Troubleshooting PRINTING QUALITY PROBLEMS 4.5.3 HORIZONTAL BLACK BANDS Description: Dark or blurry horizontal stripes appear periodically on the output print. Digital Printer Digital Printer Digital Printer Digital Printer Digital Printer Cause 1. Bad contacts on the toner cartridge highvoltage terminals. 2. The following rollers may be damaged: • Charge roller in the toner cartridge. • Supply roller in the toner cartridge. • Development roller in the toner cartridge. • Transfer roller. Solution B273T915.WMF 1. Clean all high-voltage terminals on the toner cartridge and set frame. Remove toner and dust particles. 2. Clean the gear on the OPC. Replace the toner cartridge if the problem persists. 3. Clean the transfer roller gear. Replace the transfer roller if the problem persists. 4.5.4 BLACK/WHITE SPOTS Description: Dark, white, or blurry spots appear periodically throughout the output print. Digital Printer Digital Printer Digital Printer Digital Printer Digital Printer Cause 1. Developer is coated with paper dust or other matter. 2. The OPC drum surface is damaged. 3. Transfer roller has reached end of life. Solution B273T916.WMF 1. Print several OPC cleaning mode prints. Run the self-test 2-3 times. 2. Examine the OPC drum surface and remove any particles with a soft lint free cloth. Replace the toner cartridge if the problem persists. 3. Replace the transfer roller if use has exceeded the 60 K PM replacement interval. SM 4-21 B273