| 1.Electric eye connection of domino A series machines （a320i not applicable） |
| Answer: 1 pin, 3 pins of ground wire, 4 pins of signal wire and power wire |
| 2.Domino A series machine encoder connection |
| Answer: 1 pin, 2 pins for ground wire, 4 pins for signal wire and power wire |
| 3.The machine interface displays the main ink tank overfull warning |
| Answer： there is too much ink in the main ink tank. Pour out some until the warning is removed |
| 4.The machine interface shows that there is ink warning on the charging tank |
| Answer： shut down and clean the charging tank, dry it with the ear ball, and restart it |
| 5.The machine interface shows the recovery fault |
| Answer: check whether the ink line of the nozzle enters the recycling tank. If not, adjust the ink line to the recycling tank to enter the recycling tank without recycling. If the recycling pipe is blocked, check the recycling pipe |
| 6.The machine interface shows a high voltage fault |
| Answer: the high pressure deflector accumulates ink, cleans the high pressure deflector, and checks whether the ink viscosity and breakpoint splitting are normal |
| 7.The machine interface shows that the solvent tank is empty |
| Answer: the solvent in the solvent tank is too low. Add the solvent until the warning is removed |
| 8.The machine interface shows that the ink tank is empty |
| Answer: the ink in the main ink tank is too low, or the pipeline leaks ink |
| 9.Machine interface shows charging ink detection fault |
| Answer: 1. Detect breakpoint splitting 2. Check whether there is ink in the charging tank 3. Check whether the ink viscosity is normal |
| 10.The machine interface shows that the ink box is too low. Please install a new ink box |
| Answer:replace the ink box or add new ink to the ink box until the warning is removed |
| 11.The interface displays the viscometer fault when the machine is in normal use |
| Answer: the viscometer plug is loose or the ink interface board is damaged |
| 12.No display on power on screen |
| Answer: there is no voltage in the power supply, maybe the power cord is not plugged in or the power supply of the machine is damaged |
| 13.Turn on the power supply screen, white screen, no content display |
| Answer: 1. The cable from the display screen to the main board is not plugged in. 2. The main board is damaged. 3. The display module is damaged |
| 14.Poor print quality or incomplete characters |
| Answer: 1. The nozzle is too far away from the product 2. The breakpoint is not good 3. The ink is hung on the recycling pipe 4. The font width is set too small 5. The charging is not good and the ink is out of date |
| 15.No fault prompt, not printed on the product |
| Answer: 1. The word width or printing delay is not set correctly. 2. The eye is not adjusted properly. 3. The printing mode is set incorrectly. Change the printing mode |
| 16.Correct adjustment method of electric eye |
| Answer: adjust the electric eye up and down. When the product passes through the electric eye, the electric eye light is on. The product is not out of date and the light is off |
| 17.Product leakage during production |
| 1. The electric eye is not adjusted properly 2. The electric eye is damaged 3. The printing mode is set incorrectly |
| 18.Ink line position jitter |
| Answer: 1. The nozzle is blocked. Clean the nozzle. 2. The filter is blocked and the pressure is unstable. Replace the filter or maintain the machine |
| 19.Ink on the recovery pipe |
| Answer: 1. The ink viscosity is abnormal. 2. The breakpoint is not well split. 3. The inkline is not in the right position. 4. The ink has expired and deteriorated |
| 20.The machine interface shows that the solvent is too low. Please install a new solvent box |
| Answer: replace the solvent box or add new ink to the solvent box until the warning is removed |
| 21.During normal operation, the machine interface shows that the ink path pressure is low |
| Answer: 1. Check whether the pump has rotating speed or not. 2. Ink leakage in ink pipeline. 3. Pressure sensor is damaged |
| 22.What is the pressure of ink path in standby mode |
| Answer: generally at + / – 100 |
| 23.When the machine is running normally, the interface shows that the vacuum pressure is abnormal |
| Answer: check whether the ink pipeline leaks, especially the two ink supply pipes connected to the pump |
| 24.High pressure deflector absorbs ink when inkjet printing |
| Answer: 1. Check whether the ink viscosity is normal 2. Check the breakpoint splitting 3. Test the voltage of high-voltage deflection plate (normal about 170V) |
| 25.Ventilation fault |
| Answer: 1. The fan does not rotate and is damaged 2. The main board is damaged |
| 26.Ink points are not well split |
| Answer: 1. Adjust modulation voltage 2. Replace crystal oscillator voltage 3. Ink quality problem |
| 27.Domino a series primary password and advanced password |
| Answer: primary password: service advanced password: maigret |
| 28.The model temperature is too high |
| Answer: 1. Check whether the temperature of the model is too high 2. The fan is damaged 3. The main board is damaged |
| 29.When the machine is running normally, the ink line often deviates |
| Answer: 1. The nozzle is damaged. 2. The ink path is dirty and needs maintenance |
| 30.Gun body temperature too high |
| Answer:the temperature sensor of the nozzle is damaged or the main board is damaged |
| 31.Gun body temperature too low |
| Answer:generally, the nozzle heater is damaged |
| 32.Advanced Code for domino A120 / 220 |
| Answer: enter Chaucer under advanced service and press OK |
| 33.Domino a series and a + series machines start up normally and pump speed is very fast, and skip cleaning pump speed is normal |
| Answer: generally, the venturi is blocked. Remove the venturi, bubble it with solvent or use ultrasonic |
| 34.The ink level is normal, and the interface shows that the main ink tank is empty |
| Answer: check whether the plug of ink level detector is loose or damaged |
| 35.The machine prints normally, and the upper half of the font is missing |
| Answer: the ink line is not in the right position in the recycling tank. The ink line is too close to the middle. |
| 36.Domino a + series machines and A120 / a220 machines print normally, the count is jumping , and the word cannot be printed |
| Answer: the high voltage board is damaged or the power supply is damaged |
| 37.Domino a series of machines print normally, counting is jumping, and no words can be printed |
| Answer: if the high-voltage package is damaged or the high-voltage deflection plate is damaged, you can use a multimeter to test whether there is voltage on the high-voltage plate. If there is voltage, the high-voltage deflection plate is damaged or not |
| 38.Domino series machines have no alarm display, no printing, no counting |
| Answer: 1. The electric eye is not in the right position. 2. The user interface board is damaged. 3. The cable from the main board to the user interface board is loose or damaged |
| 39.How to eliminate the domino machine fault alarm |
| Answer: the general fault alarm can be eliminated by pressing the space bar, and the special one can not be eliminated. You can use the fast shutdown to eliminate the machine in the standby state |
| 40.Saved information will be lost after shutdown and restart |
| Answer: generally, there is a problem with the main board battery. Replace the battery |
| 41.Normal ink opening line, high pump speed, low pressure |
| Answer: 1. Pipeline leaks 2. Pump is damaged 3. Pressure sensor is damaged |
| 42.During normal operation, the screen always shows that the gun body temperature is too low or too low |
| Answer: generally, the print head heater is damaged |
| 43.During normal operation, the screen shows that the gun body temperature is too low. It is the same when replacing a heating piece |
| Answer: the print head sensor is damaged |
| 44.The machine can operate normally, and the screen shows that the ink temperature is too high |
| Answer: generally, the ink sensor is damaged |
| 45.What can be printed |
| Answer: you can print graphics, text, QR code, database information, pictures, etc. QR code has more than 10 formats |
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