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Common printer problems and solutions
Date:2020-08-03Source:
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The solutions to common problems of laser printers are as follows

1. The laser printer has been warmed up for more than 2 minutes or the shape is not firm enough, and the characters fall off.

    (1) Whether the indoor temperature is above 20°C;

    (2) Whether the thermistor has poor contact or failure;

    (3) Whether the voltage reaches 220V;

    (4) Whether the paper and toner are too moist.

2. Paper jam

    (1) Whether the paper size is appropriate. If the paper is too thick or too thin, or the paper is damp or curled, paper jams will occur;

    (2) The coated paper cannot be used in ordinary laser printers;

    (3) Whether the separation claw of the laser printer is worn and needs to be replaced.

3. If part or all of the characters are unclear on the print, then the toner density is uneven.

   The cause of this failure is that the toner in the toner cartridge is insufficient and needs to be replenished.

4. Black spots or underworlds appear on the print, and they still appear in the same position after changing the paper.

    The cause of this failure is that the OPC drum is damaged.

5. If there are horizontal stripes on the print, and they still appear in the same position after changing the paper, it means that the scraper needs to be replaced

6. If there are vertical stripes on the print, and it still appears in the same position after changing the paper, the magnetic roller on the toner supply box is damaged and needs to be replaced.

7. On the printed matter, the large characters are jagged, and the text appears in a straight line and lacks strokes, indicating that there is dust on the hexagonal mirror or Fθ objective lens and needs to be cleaned

8. Pay attention to when replacing toner:                                   

    (1)Clean up the remaining powder in the powder feeding bin and the powder receiving bin;                                                                          

    (2)After applying the toner, shake the toner in the toner feeding bin in parallel, and turn the gear clockwise by hand several times to make the toner evenly adhere to the magnetic roller to ensure that the toner is even.

9. After replacing the toner, the ink color of the text is uneven or the toner leaks, the problem is still not solved after printing a few more sheets. First consider whether the toner is damp, and secondly, whether the toner in the toner delivery bin is too large.

10. When the laser printer is in the process of sending samples, if the display of the host displays the words "laser printer power down" or "peripheral equipment is not  ready", the main solution is to connect the signal line.

11. If the self-checking paper sample of the laser printer is all black, there is no self-checking line. "IACK!" appears on the host display, indicating that the video interface card is faulty.









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