![Epson Stylus CX3500 Series Service Manual Download Page 65](http://html.mh-extra.com/html/epson/stylus-cx3500-series/stylus-cx3500-series_service-manual_106026065.webp)
EPSON Stylus CX3500/CX3600/CX3650/CX4500/CX4600
Revision A
OPERATING PRINCIPLES
Printer Mechanism
65
2.2.5.2 Pump Unit Mechanism
The PF Motor also controls the Pump Unit mechanism (including the Change Lever) as
well as the Paper loading/feeding mechanism. The drive of the PF Motor is always
transmitted to the Pump Unit. (And also, its drive is transmitted to the LD Roller
through the Clutch mechanism & the Change Lever.)
On this printer, the Pump Unit mechanism including the Change Lever plays a major
role expecting the ink eject operation. And, these operations control depending on the
PF Motor rotational direction as the following table below.
Note "*": The PF Motor rotational direction = seen from the left side of the printer.
1.
Ink eject operation (usual operation)
The ink is absorbed from the Ink Cartridge, the ink cavity and is ejected to the
Waste Ink Pad from the Cap when the Ink Tube is pressed by a roller in the Pump
Unit.
Following figure shows you the overview of the Pump Unit mechanism operation.
Note :
The PF Motor rotational direction = seen from the right side of the printer.
Figure 2-11. Pump mechanism
Figure 2-12. PF Motor drive transmission path to the Pump Unit
Table 2-5. PF Motor rotational direction & Ink system mechanism
Directions *
Functions
Clockwise
• Pump release
Counterclockwise
• Absorbs the ink
• Release the Change Lever from the Clutch mechanism
Cap Unit
side
Waste Ink
Pad side
Cap Unit
Pump Unit
Left side view
Right side view
Transmission Path:
PF Motor pinion gear (CW)
→
Spur Gear 30.8 (CCW)
→
Spur Gear 32.4 (PF Roller) (CW)
→
Spur gear 13.5 (PF Roller) (CW)
→
Combination Gear 21.24 (CCW)
→
Spur Gear 27.2 (Pump Unit gear) (CW)
(Above transmission pass = seen from the right side of the printer)
Spur Gear 30.8
PF Motor
pinion gear
Spur Gear 32.4
(PF Roller)
Spur Gear 27.2
(Pump Unit gear)
Spur Gear 13.5
(PF roller)
Combination
Gear 21.24
Summary of Contents for Stylus CX3500 Series
Page 1: ...EPSON STYLUSCX3500 CX3650 CX3600 CX4500 CX4600 Color Inkjet Printer SEOT04 004 SERVICE MANUAL ...
Page 8: ...C H A P T E R PRODUCTDESCRIPTION ...
Page 52: ...C H A P T E R OPERATINGPRINCIPLES ...
Page 79: ...C H A P T E R TROUBLESHOOTING ...
Page 113: ...C H A P T E R DISASSEMBLYANDASSEMBLY ...
Page 161: ...C H A P T E R ADJUSTMENT ...
Page 174: ...C H A P T E R MAINTENANCE ...
Page 181: ...C H A P T E R APPENDIX ...
Page 200: ......
Page 201: ......
Page 202: ......
Page 203: ......
Page 204: ......
Page 205: ......
Page 206: ......