4.7 Circulation Unit Replacement Procedure ···················································· 4-16
4.8 Pump Parts Replacement ······································································· 4-18
4.9 Circulation Filter Replacement Procedure ···················································· 4-29
4.10 Ink/Makeup Reservoir Replacement Procedure ··········································· 4-30
4.11 Solenoid Replacement Procedure ···························································· 4-34
4.12 Troubleshooting when Fault Occurs in Viscometer ······································· 4-37
4.13 Print Head Replacement Procedure ·························································· 4-42
4.14 Troubleshooting Procedure for the Circulation System ·································· 4-45
4.15 Repairing Method When the Circulation Route Is Dry or Sticks ····················· 4-50
4.16 Maintenance Work of Intake fan unit ························································ 4-52
4.17 R air filter Replacement Procedure ·························································· 4-54
4.18 Liquid Spill Check on Exhaust Duct ························································· 4-56
4.19 Circulation system cleaning of printer which uses Ethanol-based ink ··············· 4-57
4.20 Cleaning of dedicated path for Low volatilization system (UX-E only) ··············· 4-59
5. Print head related maintenance ···································································· 5-1
5.1 Print head rough configuration ··································································· 5-1
5.2 Cable running direction ············································································ 5-3
5.3 Gutter configuration and replacement method ·············································· 5-4
5.3.1 Gutter configuration ··········································································· 5-4
5.3.2 Replacement method ········································································· 5-4
5.4 MGV filter replacement ············································································ 5-5
5.5 Shutoff valve (MV9) replacement ······························································· 5-7
5.6 Heating unit replacement ········································································· 5-9
5.7 APH board replacement ··········································································· 5-11
5.8 Nozzle replacement ················································································ 5-12
5.9 Nozzle Orifice Cleaning ··········································································· 5-14
5.10 Mist collector maintenance (applied UX-E only) ··········································· 5-16
5.11 Thermistor replacement ·········································································· 5-17
5.12 Deflecting Base Replacement Procedure ··················································· 5.19
5.13 Head base Replacement Procedure ························································· 5-22
5.14 Head Cable Replacement Procedure ························································ 5-24
6. Troubleshooting ·························································································· 6-1
6.1 Troubleshooting List ················································································ 6-1
6.2 Faults - Ink-stop type ············································································· 6-3
6.3 Faults - Print-stop type ············································································· 6-29
6.4 Warning conditions (printing continuously performed)····································· 6-43
6.5 Faults - No on-screen indications ······························································· 6-58
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