1: Fault description: bottom ash.
Failure analysis: caused by the laser too strong. The system test pattern 2 is used to distinguish the standard bottom ash from the reverse bottom ash. The bottom ash that is consistent with the black line is the reverse bottom ash, and the bottom ash that is inconsistent with the black line is the standard bottom ash.
Troubleshooting: If standard bottom ash appears, turn the R41 on the laser driver board counterclockwise one turn. If reverse bottom ash appears, turn the R41 on the laser driver plate clockwise. If the fault still exists, repeat the above operation until the fault disappears. If both types of bottom ash appear at the same time, turn the R43 on the laser driver board counterclockwise to increase the TP1 voltage on the laser driver board by 0.1 volt.
2: Fault Description: Card
Fault analysis: The cutter assembly is deformed or the film curvature is too large. The leader is stuck between the cutter and the roller.
Troubleshooting: If domestic films are used, the replacement of imported films will improve. Replace knife assembly can completely solve.
3: Fault description: Film corners are not accurate.
Fault analysis: The pressure on the drive components is not enough to make the two sides of the film inconsistent.
Troubleshooting: Replace the spring pair.
4: Fault Description: The two corners of the film are inaccurate.
Failure analysis: insufficient winch pressure.
Troubleshooting: Adjust the tightness of the winch belt: loosen the drive motor first, then loosen the two screws on the fast wheel, loosen the fast wheel, and then move the fast wheel backward, so that the tension between the fast wheel and the slow wheel is tightened , Lock the two screws on the fast wheel, and then move the drive motor backward to tighten the tension between the fast wheel and the drive motor. Fix the drive motor immediately. Use the pressure side to measure the tension of the two belts on the tool side. If not, repeat the above operation or replace the two belts.
5: Fault description: film is not back set
Failure analysis: Laser scanning is not in the horizontal direction, the image is diamond-shaped.
Troubleshooting: Cut the film into small strips, place it on the side of the optical head, cover the machine, and test it out. If the fault is reduced, add spacers on the same side until the fault disappears. If the fault is more severe, remove the gasket and add the gasket on the opposite side until the fault disappears.
6: Fault Description: The image is severely shortened in the direction of film travel
Fault analysis: In the drive assembly, the gap between the rubber roller and the metal roller is too large, the pressure is too small, the film has stagnation when the film is taken out, and the length of the film is shortened.
Troubleshooting: Replace the entire drive assembly.
7: Fault description: The image is elongated in the direction of film advance.
Fault analysis: Dust or scratches on the drive motor encoder.
Troubleshooting: Remove the back cover of the machine, remove the two screws on the drive motor mounting plate, and take out the drive motor. Gently remove the black plastic cover on the motor and blow the encoder with compressed air. Then put the drive motor back in place, lock it, and test it out. If the fault still occurs, replace the drive motor.
8: Fault description: system error 1
Fault analysis: The drive part turns too fast. There are three reasons: motherboard out of control, drive motor failure, drive encoder damage.
Troubleshooting: 1: Clean or replace the drive motor. Two: Replace the drive encoder. Three: Replace the motherboard.
9: Fault phenomenon: system error 2
Fault Analysis: Repair Manual Tip: System error 2 is a light source error. Adjusting the laser driver board voltage for a long period of time.
Troubleshooting: Adjust the laser driver board R33 so that the voltage is normal. If not, replace the optical unit.
10: Symptoms: Imagesetter automatically cuts pieces
Failure Analysis: Each time the imagesetter finishes a movie, he receives a foreign signal and automatically performs the function of cutting.
Troubleshooting: First self-check, self-test is normal. Exclude photosetter itself from failure. Unplug the signal line associated with the rip, clean it, reinstall it, and position it. If the fault persists, replace the signal cable.
11: Symptoms: The image is black
Failure analysis: When the phototypewriter enters the working state, the laser automatically hits the strongest. When the exposure value is the maximum, the image is all black.
Troubleshooting: Replace the optical components.
12: Symptom: Imagesetter panel displays "24v"
Fault Analysis: The power supply of the imagesetter power supply to the motherboard is insufficient, causing the imagesetter to not work.
Troubleshooting: Refer to the manual to adjust the imager power supply voltage or replace the imagesetter power supply.
13: Symptoms: Black edges on the edges of the image
Failure analysis: There is a slight bottom ash, but the self-test is normal.
Troubleshooting: Adjust and adjust the laser driver board R41 voltage.
14: Symptom: The white line in the scanning direction is irregular.
Fault analysis: No laser is emitted at the white line, and the laser signal is unstable.
Troubleshooting: Replace the entire optical assembly.
15: Symptoms: White lines in the scanning direction, every 125mm.
Fault analysis: The circumference of the driving roller shaft is 125mm, and the driving encoder and the roller shaft rotate concentrically, which drives the encoder to have dust or scratches.
Troubleshooting: Clean or replace the drive encoder.
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