Samsung MULTIXPRESS CLX-9251 Series Service Manual

Also see for CLX-9201 Series: User guide User guide Service manual

4. Troubleshooting4.6.4. Horizontal periodic Light/Dark Band or DotA. Typical faulty imagesB. Troubleshooting procedureStep Cause Action1 Horizontal periodic band (OPC, 94.2 mm)• OPC was exposed for a long time.• OPC is damaged by high voltage in a short time.As some time passes, most of this trouble will disappear.If not, replace the Drum Unit.(Refer to 3.3.2.1.)2 Horizontal periodic light/dark band (Roller-magnetic,31.4mm)• Roller-magnetic is inferior in quality.• V-groove of Roller-magnetic surface is notuniform.Replace the Developer Unit.(Refer to 3.2.2.2.)4-211 Copyright© 1995-2016 SAMSUNG. All rights reserved.