Hitachi PXR, Service Manual

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2.6.2 Confirmation of the ink viscosity coefficient ·················································· 2-23
2.6.3 Operation test of viscometer ········································································· 2-24
2.7 Ink concentration control ···················································································· 2-25
2.8 System reset ······································································································ 2-26
2.9 Back up ·············································································································· 2-27
2.10 Unit information ································································································ 2-29
2.11 Handling of the warning ”Product Speed Matching Error” ································· 2-30
2.12 Language registration ······················································································ 2-31
2.13 Fault / Warning log management code ····························································· 2-33
2.14 Software option set up ····················································································· 2-35
3. Maintenance of controlling part··················································································· 3-1
3.1 Construction of controlling part ··········································································· 3-1
3.2 Controller part ······································································································ 3-3
3.2.1 EZJ104 board (controller board)····································································· 3-3
3.2.2 Battery ············································································································ 3-7
3.2.3 Power supply for LCD backlight······································································ 3-7
3.2.4 Control panel ································································································ 3-8
3.3 Engine part············································································································ 3-9
3.3.1 EZJ93 board (MPU board)·············································································· 3-9
3.3.2 EZJ94 board (NH board) ················································································ 3-13
3.3.3 EZJ95 board (I/O board)················································································· 3-15
3.3.4 EZJ99 board (Optional board) ········································································ 3-18
3.3.5 EZJ105 board ······························································································· 3-22
3.3.6 Multiple Power Supply ················································································· 3-23
3.3.7 High voltage power supply ············································································ 3-23
3.3.8 Fan Replacement Procedure ········································································ 3-24
3.3.9 Exhaust Filter Replacement Procedure ························································ 3-26
4. Maintenance of Circulation System (PXR-D, PXR-H) ··············································· 4-1
4.1 General Structure of Circulation System ······························································· 4-1
4.2 Main Ink Tank Replacement Procedure································································· 4-4
4.3 Pressure Relief Valve Replacement Procedure ···················································· 4-6
4.4 Joint Structure and Handling ················································································· 4-7
4.5 Pump Unit Replacement Procedure······································································ 4-9
4.6 Solenoid Valves Replacement Procedure ····························································· 4-11