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2.1 Printer Mechanism
DX100 Service Manual
2.1.5 Valve Mechanism
Self-sealing valves work as a sub tank to compensate temporary ink supply shortage to keep
the pressure constant in off-carriage type printers. For off-carriage type printers, some colors
of ink tends to be excessively consumed temporarily, which may sometimes cause dot
missing or similar trouble. Self-sealing valves help to prevent such situations and maintain
the print quality.
When the ink in the Self Sealing Valve is supplied to the print head, the pressure in the
pressure chamber declines and the pressure plate and diaphragm moves the valve rod to the
valve chamber. Then the ink path from the ink tube and the Self Sealing Valve opens and ink
is supplied to the pressure chamber. If the pressure chamber is filled with ink, the valve rod is
moved to the valve chamber and closes the ink path from the ink tube.
Figure 2-9. Valve mechanism
Valve
chamber
Valve rod
Pressure
plate
Print Head
Valve lever is opened
Valve lever is closed
Print Head
Ink path
Ink path
Pressure
chamber
Valve rod
Diaphragm
Содержание Frontier-S DX100
Страница 13: ...13 DX100 Service Manual 7 3 Board Layout Diagram 299 7 4 Board Voltage List 303...
Страница 14: ...C H A P T E R 1 PRODUCTDESCRIPTION...
Страница 29: ...C H A P T E R 2 OPERATINGPRINCIPLES...
Страница 46: ...C H A P T E R 3 TROUBLESHOOTING...
Страница 76: ...C H A P T E R 4 DISASSEMBLY ASSEMBLY...
Страница 208: ...C H A P T E R 5 ADJUSTMENT...
Страница 268: ...268 5 5Paper Feed Related Adjustment DX100 Service Manual 17 Install the Upper Cover P 100 18 Install the Top Cover P 97...
Страница 274: ...274 5 6Ink System Related Adjustment DX100 Service Manual Figure 5 99 Ink Flushing Discharge screen...
Страница 279: ...C H A P T E R 6 MAINTENANCE...
Страница 296: ...C H A P T E R 7 APPENDIX...
Страница 298: ...298 7 2Connector Summary DX100 Service Manual 7 2 Connector Summary PW sensor...
Страница 301: ...301 7 3Board Layout Diagram DX100 Service Manual Heater Board 3 3 V 8 10 5 V_IN 1 2 24 V_A 3 4 F5 24 V_A F6 5 V...
Страница 302: ...302 7 3Board Layout Diagram DX100 Service Manual Power Supply Board...