Problem |
Causes/check procedures |
Corrective measures |
(1) No primary paper feed. |
Check if the surfaces of the paper feed roller is dirty with paper powder. |
Clean with isopropyl alcohol. |
Check if the paper feed roller is deformed. |
Check visually and replace any deformed paper feed roller (assembly) |
Defective paper feed clutch installation. |
Check visually and remedy if necessary. |
(2) No secondary paper feed. |
Check if the surfaces of the upper and lower registration rollers are dirty with paper powder. |
Clean with isopropyl alcohol. |
Defective registration clutch installation. |
Check visually and remedy if necessary. |
(3) Skewed paper feed. |
Paper width guide in a cassette installed incorrectly. |
Check the paper width guide visually and correct or replace if necessary. |
(4) Multiple sheets of paper are fed at one time. |
Check if the separator pad or MPF separation pad is worn. |
Replace the separator pad if it is worn. |
Check if the paper is curled. |
Replace the paper. |
(5) Paper jams. |
Check if the paper is excessively curled. |
Replace the paper. |
Check if the contact between the upper and lower registration rollers is correct. |
Check visually and remedy if necessary. |
Check if the heat roller or press roller is extremely dirty or deformed. |
Replace the fuser unit |
Check if the contact between the ejection roller and fuser ejection pulley is correct. |
Check visually and remedy if necessary. |
(6) Toner drops on the paper conveying path. |
Check if the drum unit or developing unit is extremely dirty. |
Clean the drum unit or developing unit |
(7) Abnormal noise is heard. |
Check if the pulleys, rollers and gears operate smoothly. |
Grease the bearings and gears. |
Check if the following electromagnetic clutches are installed correctly: Paper feed clutch, registration clutch and developing clutch. |
Check visually and remedy if necessary. |