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1. Charging:
①Charging roller: There are regular black spots, the printing effect has black lines, all black, horizontal black bars, ghosting and other phenomena.
②Charging stand: if the electrode wire is dirty, a red line will appear
Second, exposure:
1. The overall printing is light,
2. Print all white,
3. White lines or white bars are printed
Three, development:
①Magnetic roller: 1 has regular black dots, 2 has white lines, 3 prints all white, 4 has regular horizontal white stripes.
②Magnetic scraper: 1 has a black line, 2 is dark on one side and light on the other side, and 3 is printed with a gray bottom.
③Magnetic roller sleeve: 1 the printing powder leaks, 2 the printing effect is like a smoke ring.
④Magnetic roller gear: 1 the printing effect text or image is misplaced, 2 the printing is completely white, 3 the paper jam (stuck under the drum core)
⑤Toner mixing rod: 1 the printing effect has white stripes, 2 the printing is all white
⑥Toner: 1 light printing, 2 printing all black, 3 printing with gray background.
Four, transshipment:
①Print all white ②Print lightly ③Print vertical white stripes
Five, separation-mainly paper jam
Six, fixing:
1 paper jam, 2 weak fixation, 3 ghosting
Seven, clean:
1 There is ghost on one side and no ghost on the other side, 2 with black lines, 3 drag-like gray bars, 4 horizontal black bars, 8 drum core: 1 regular black spots, 2 black lines, 3 bottom gray when drum core ages , 4 horizontal white bars appear.
"Maintenance FAQ"
1. There are regular black spots on the printed proofs?
1. There are dirty black spots on the charging roller. 2. There is a bit of toner on the magnetic roller, and 3, the drum core is a bit damaged. The characteristics of the above three points are: the size of the black dots remains the same and has periodicity.
Second, the printed proofs are regularly blurred? 1. Drum core, 2. Charging roller. The main reasons for the above two points are: touch the drum core or charging roller by hand.
Third, the overall image of the printed sample is light? 1. The laser is dirty, 2. There is a problem with the transfer stick, 3. The powder is wrong or poor quality
Fourth, there are vertical white lines printed or a thin vertical line is printed? 1. No powder (it will cause a short period of no powder) 2. The transfer rod is damaged 3. The laser, 1 The reflector is dirty, 2 The protective cover glass is dirty
5. There are horizontal white bars in the printed sample image? 1. The photosensitive drum coating or drum gear is defective. 2. The high voltage board is defective. 3. The magnetic roller is charged. 6. Is there a vertical black line in the printing? 1. The scraper has a gap 2. The drum core has a circle of wear 3. The charging roller has a circle of wear 4. The fixing roller has a circle of wear (heating roller) 7. Is there a horizontal black stripe printed? 1. There is a problem with the charging roller 2. The drum scraper is worn out, and the printed image or text is all black? 1. The toner quality is poor or not matching 2. The charging roller is not installed in place 9. The printed text or image is grayed out? 1. The drum core is aging. 2. The quality of the powder is problematic. 3. The drum scraper has a problem. 4. The magnetic roller bias is too large. 5. The charging roller is defective. 6. The paper is damp. 7. The high voltage board is defective.
Please pay attention to Riqiya for printer accessories!
