EPSON Stylus Pro 4400/4450/4800/4880/4880C
Revision C
Operating Principles
Printer Mechanism Components
119
Dumper
The dumper is equipped with a valve to prevent reverse flow of ink, and
when this valve opens the ink inside the ink storage space within the
dumper flows and is supplied to the Print Head. Numbers
though
in
the figure explain the ink flow sequence inside the dumper.
Figure 2-4. Ink Route inside of Dumper (1)
Figure 2-5. Ink Route inside of Dumper (2)
I/H lever sensor
The left I/H and right I/H each have 1 I/H Lever Sensor located on the side.
This sensor uses a reverse tension switch (mechanical contact) to detect
whether the ink cartridge is set or released by the ink lever.
Figure 2-6. I/H Lever Sensor
Back
Front
1
2
5
4
3
Valve Close
Valve Open
I/H Lever Sensor (Left)
I/H Lever Sensor (Right)
Summary of Contents for Stylus Pro 4800 Portrait Edition
Page 9: ...C H A P T E R 1 PRODUCTDESCRIPTION ...
Page 113: ...C H A P T E R 2 OPERATINGPRINCIPLES ...
Page 156: ...C H A P T E R 3 TROUBLESHOOTING ...
Page 200: ...C H A P T E R 4 DISASSEMBLY ASSEMBLY ...
Page 366: ...C H A P T E R 5 ADJUSTMENT ...
Page 448: ...C H A P T E R 6 MAINTENANCE ...
Page 457: ...C H A P T E R 7 APPENDIX ...