Panasonic KX MC6020 Service Manual - Page 184

KX-MC6020HX No. Symptom Cause Countermeasure 14 Image is Skewed on the Overcapacity of paper cassette tray Remain paper level appropriately Paper(P.216) Wrong adjustment of paper guide Adjust paper guide to proper size Failed paper feed unit Replace paper feed unit Something wrong with secondary transfer roller Check secondary transfer roller movement Failed main board Replace main board 15 Stains on Back of Print Dirt on secondary transfer roller Clean secondary transfer roller (P.217) Dirt on paper path of paper feed unit Clean paper path of paper feed unit Dirt on intermediate and registration rollers Clean intermediate and registration rollers Dirt on paper chute Clean paper chute Dirt on paper path after fuser unit Clean paper path Failed fuser unit Replace fuser unit 16 No Printing on Edge of Failed drum cartridge Replace drum cartridge Print (P.218) Failed toner cartridge Replace toner cartridge Failed accumulator unit Replace accumulator unit 17 Image is not Centered on Wrong paper installation nstall paper correctly the Print When it Should Wrong adjustment of paper guide Be (P.219) Failed print position calibration Adjust paper guide to proper size Adjust print position Failed main board Replace main board 12.4.5.2. Jam No. Symptom Cause Countermeasure 1 Print Media Problem Inappropriate print media Use appropriate print media (P.220) Damaged print media Use undamaged print media Wrong tray Use correct tray 2 Print Media Skew (P.221) Failed pickup roller Check and clean pickup roller Wrong adjustment of paper guide Adjust or repalce paper guides Overcapacity of paper cassette tray Remain paper level appropriately Failed paper guide Remove burs or foreign obstruction Failed springs in cassette tray Replace damaged springs Failed springs on paper feed roller and registra- Replace damaged springs tion roller 3 Paper Jam at the Input Failed springs in cassette tray Replace damaged spring Tray (P.222) Dirt on pickup roller Clean pickup roller Wrong installation of pickup roller Install pickup roller properly Failed pickup roller Replace pickup roller Dirt on retard rollers Clean retard rollers Wong installation of retard rollers Install retard rollers properly Failed springs in retard roller Replace dagamed springs Failed paper feed driving motor Replace motor Failed gears Clean or replace gears Failed pickup roller solenoid Check or replace solenoid Something wrong with regist sensor arm Correct or replace regist sensor arm Failed cables and connectors on main board Replace cables and connectors Failed in other area Replace defective parts 4 Paper Jams at the Regis- Failed springs in cassette tray Replace damaged springs tration Roller (P.223) Dirt on pickup roller Clean pickup roller Wong installation of pickup roller Install pickup roller properly Failed pickup roller Replace pickup roller Failed springs on paper feed roller Correct or replace damaged springs Something wrong with regist sensor arm Correct or replace regist sensor arm Failed paper feed driving motor Replace motor Failed gears Clean or replace gears Failed pickup rolller solenoid Check or replace solenoid Failed cables and connectors on main board Replace defective parts Failed in other area Replace defective parts 5 Paper Jams at the 2nd Wrong Installation of transfer roller Install transfer roller properly Transfer Roller (P.224) Failed registration sonsor arm Correct movement of the sensor arm Dirt on registration rollers Clean registration rollers Failed registration clutch Check or replace registration clutch Wrong installation of registration springs Install registration springs properly 184