Due to prolonged inactivity, inkjet printers may encounter various faults and issues.
1. High Voltage Fault
Cause: The high voltage sensor detects an imbalance in high voltage.
Specific Reasons:
a. Foreign objects may come into contact with the high-voltage deflection plate.
b. The high-voltage deflection plate may be dirty.
c. The high-voltage sensor itself may be too sensitive.
Solutions:
a. Clean the high-voltage deflection plate, then restart the machine normally.
b. If this is the case, the high voltage fault may frequently occur even if the deflection plate is clean. This should be addressed by a professional technician. You can contact our customer service hotline for assistance.
2. Charging Fault
Specific Reasons:
a. Ink is present in the charging slot.
b. Charging ink dot detection malfunction.
Solutions:
a. Turn off the inkjet printer (including the power), and clean the charging slot. If necessary, remove the charging slot for thorough cleaning. After cleaning, allow the charging slot to dry before restarting the machine.
b. This fault can have various causes, starting with the ink. Check the viscosity and expiration date of the ink, as well as its quality (ensure it is compatible ink). Observe the splitting, check the ink line pressure, adjust the modulation voltage as needed, and make appropriate adjustments to ensure proper splitting. This should generally resolve the fault. If the charging slot itself is damaged, please contact our customer service for assistance.
3. Character Defects
Ink droplets may have fallen onto the edge of the recovery tube, causing ink buildup in the recovery tube.
Specific Reasons:
a. Check if the ink line position is correct.
b. Determine if the ink droplet splitting is normal.
c. Verify if the ink is functioning properly (check ink viscosity, expiration date, and compatibility with consumables).
d. Ensure that the inkjet printer is properly grounded (this is often overlooked by customers and some engineers). Grounding is crucial and can have serious consequences!
4. Recovery Tube Fault
The recovery tube sensor does not detect ink flowing through the recovery tube.
Specific Reasons:
a. The ink line is abnormal (either no ink line is ejected or the ink line is misaligned).
b. The recovery tube is blocked.
c. The recovery sensor is damaged or not connected.
Solutions:
a. Check the ink supply circuit. Clean the nozzle plate and perform ink line calibration.
b. If the recovery tube is blocked, check for blockages in segments along the recovery tube.
c. Verify that the recovery tube sensor connector on the motherboard is properly installed. Replace the recovery tube sensor if necessary.
5. Ink Viscosity Fault
The ink viscosity value exceeds the limit.
In some cases, the machine may operate normally, but checks are necessary. Otherwise, it may fail to print properly after some time.
Causes:
a. The current viscosity of the ink is greater than the set viscosity value, indicating that the ink is too thick.
b. The current viscosity of the ink is less than the set viscosity value, indicating that the ink is too thin.
Solutions:
a. Check if there is solvent in the solvent tank. Verify that the solvent addition circuit is functioning properly.
b. If the machine has been turned on and off multiple times in a short period, check the solvent addition circuit for issues. For specific procedures, contact a professional technician from your service provider.
6. Inkjet Printer Viscosity Meter Fault
Inkjet printers have high requirements for ink viscosity. Viscosity refers to the thickness of the ink, which is different from concentration but is related to both concentration and temperature. Higher concentration and temperature both increase viscosity. Therefore, inkjet printers have different viscosity settings for different temperatures.
If the current viscosity deviates significantly from the set value, the printer may not print properly and may report an ink viscosity fault.
Solutions:
· If the ink is too thin, pour it out and place it in a ventilated area or use a fan to evaporate the diluents.
· If the ink is too thick, manually add solvent. Once viscosity is normal, monitor for any further changes. If viscosity changes significantly, there may be issues with the ink diluent addition circuit, requiring further inspection.
Possible Issues:
· Blockages in the viscosity measurement circuit or insufficient flow.
· Poor contact or damage in the viscosity meter circuit.
Repair Methods:
· Start by observing indicator lights on the circuit and measuring voltage to determine if there are issues. Then check the ink line part of the viscosity measurement. Detach one end of the viscosity meter, attach it to a beaker, and observe the flow to identify which section of the tubing may be problematic.
Check from simple to complex. If difficulties arise, contact the inkjet printer supplier for assistance. If you feel unable to perform repairs, call your inkjet printer supplier and report the fault symptoms and the checks you have conducted.
Your message must be between 20-3,000 characters!
