Failure analysis: 1, toner is used up, the cartridge sealing tape has been removed; 2, cartridge failure; 3, laser failure; 4, data lines or power supply board failure.
Symptom 2: The print is black
Failure analysis: 1, cartridge failure; 2, laser failure; 3, control circuit failure.
Symptom 3: Printed bottom gray
Failure analysis: 1, cartridge failure (scraper or drum core); 2, toner problem.
Symptom 4: Partially blurred prints
Failure analysis: 1, toner cartridge failure; 2, transfer problems.
Symptom 5: The print is tainted
Failure analysis: 1, the paper path is too dirty; 2, toner leakage powder; 3, toner cartridge damage.
Symptom 6: Print fonts are relatively light
Fault analysis: 1. Whether the toner is used up; 2. Printing paper is wet; 3. Whether the printer is in ink saving mode; 4. The cartridge is aged; 5. The laser is dirty (dust) or aged; 6. The transfer roller is aged or dirty .
Symptom 7: Leaking powder (There are a lot of messy black spots or black blocks on the proofs)
Failure analysis: 1, toner cartridge failure (scraper); 2, toner cartridge full of waste.
Symptom 8: Underscores appear in print samples (vertical feed direction, printed proofs appearing periodic horizontal black lines or black dots)
Fault analysis: 1. The surface of the drum has scratches or scratches; 2. Problems with the fixing assembly (breakage of the fixing film).
1. Printed proofs appear white (in the direction of paper feed, printable proofs appear vertical white);
2, vertical feed direction, print proofs appear horizontal white road.
Failure analysis: 1, the laser does not reflect the dirty; 2 toner problem (with foreign matter blocking the cartridge between the normal operation of the components); 3, cartridge problems.
Symptom 10: Cannot be fixed (some or all of the printed content can be erased)
Failure analysis: 1, paper problems (tide); 2, powder problems (model matching); 3, the fuser assembly failure (fusing film rupture); 4, fuser heating assembly failure.
Symptom 11: Paper jams when feeding
Failure analysis: 1, print paper problems (wet, thin or wrinkled); 2, pick roller dirty or worn (paper feed end paper jam); 3, the paper path has obstacles; 4, feed sensor failure; Abrasion of the printer paper pick-up pad in the paper cassette; 6. The paper cassette cannot be lifted up 7: The feed clutch failed.
Symptom 12: Jam on paper exit
Failure analysis: 1, out of the paper sensor failure 2, the fuser assembly failure (fusing paper jam); 3, the paper outlet is blocked by foreign matter
Symptom 13: Jam inside the machine
Failure analysis: 1, the paper in the channel deformation (deformation after the paper); 2, channel paper sensor failure; 3, paper channels have foreign objects or parts deformation.
Symptom 14: Multiple feeds
Failure analysis: 1, pager failure; 2, static reasons.
Symptom 15: Print ghosting
Failure analysis: 1, toner cartridge failure; 2, fixing failure.
Symptom 16: Prints are deep and shallow on one side
Failure analysis: 1, cartridge failure; 2, laser failure; 3, data line failure.
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