Problem |
CausesCauses/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 developer unit is extremely dirty. |
Clean the drum unit or developer 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 developer clutch. |
Check visually and remedy if necessary. |
(8)When the trouble occurs in the DP. |
|
Refer to the DP’s service manual. |