Issue link: https://docs.hic.us/i/1518964
4-21 1 2 2 4 5 6 Chapter 4 Maintenance Examples of Printing Issues The following are typical examples of head (nozzle) ejection failure caused by dust or other factors that affect printing. To avoid using the nozzles in this state, check the nozzles regularly before and during printing. Nozzle status can be checked by using the machine's test printing function. Recovering from nozzle ejection failure If the machine is idle over an extended period, or under certain ambient temperatures, discharging from nozzles may become unstable. The following nozzle recovery is available. For symptoms in figures 1–4 above 1. Routine maintenance Clean the areas described in this manual. 2. Perform head cleaning (normal/hard) If the nozzle dropout does not recover after repeating the normal cleaning several times, perform the hard cleaning. Check results of test printing If this does not alleviate nozzle clogging or other issues 3. Perform an ink filling (normal or hard) If it does not recover with cleaning, perform normal or hard cleaning. Check results of test printing If this does not alleviate nozzle clogging or other issues 4. Wash the head nozzles Perform head nozzle washing. Set the leaving time for head nozzle immer- sion in maintenance liquid to one minute. Check results of test printing If this does not alleviate nozzle clogging or other issues 5. Wash the head nozzles again Set the leaving time for head nozzle immersion in maintenance liquid to 10 minutes. Check results of test printing • If these steps do not alleviate nozzle clogging, contact your dealer, or our sales office or call center. 1 10 21 30 41 50 61 70 81 90 101 110 121 130 141 150 161 170 181 190 201 210 221 230 1 10 21 30 41 50 61 70 81 90 101 110 121 130 141 150 161 170 181 190 201 210 221 230 1. Nozzle deflection 2. Nozzle clogging 3. Ink dripping 4. Mist 5. Mixing with air