4.18 Check on Exhaust Duct dripping ····························································· 4-80
4.19 Circulation system cleaning of printer which uses Ethanol-based ink ··············· 4-81
5. Print head related maintenance ···································································· 5-1
5.1 Structure of Print head ············································································· 5-1
5.2 Cable running direction ············································································ 5-2
5.3 Gutter configuration and replacement method ·············································· 5-3
5.3.1 Gutter configuration ··········································································· 5-3
5.3.2 Replacement method ········································································· 5-3
5.4 MGV filter replacement ············································································ 5-4
5.5 Shutoff valve (MV9/MV29) replacement ······················································ 5-6
5.6 Heating unit replacement ········································································· 5-9
5.7 APH board (EZJ135) replacement ······························································ 5-11
5.8 Nozzle replacement ················································································ 5-12
5.9 Nozzle Orifice Cleaning ··········································································· 5-15
5.10 Thermistor replacement ········································································· 5-17
5.11 Deflection Base Replacement Procedure ··················································· 5-19
5.12 Head base Replacement Procedure ························································· 5-23
5.13 Head Cable Replacement Procedure ························································ 5-26
6. Troubleshooting ·························································································· 6-1
6.1 Troubleshooting List ················································································ 6-1
6.2 Faults - Ink-stop type ············································································· 6-5
6.3 Faults - Print-stop type ············································································· 6-47
6.4 Warning conditions (printing continuously performed)····································· 6-65
6.5 Faults - No indication on screen ································································· 6-82
7. Attached Drawing ························································································ 7-1
7.1 Circulation system diagram ····································································· 7-1
7.2 Tube Connection Diagram ······································································ 7-2
7.3 Electrical Connection Diagram ································································· 7-3
7.4 Dimensions around charge electrode and deflection electrode ························· 7-4
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