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Operating Principles
Mechanism Operating Principles
2.2.10 Ink System
2.2.10.1 Pump Motor
2.2.10.2 Ink System Driving Conditions
With the Pump Motor as the drive source, the Ink System Assy is driven according to
the following conditions.
Drive settings (six modes)
Operation settings
Figure 2-31. Ink System
Item
Specifications
Type
4-phase 48-pole PM type stepping motor
Voltage
42 V (DC voltage) ± 5% (voltage applied to the driver)
Basic
characteristics
Winding resistance
7.6
Ω
± 10%(25°C/phase)
Inductance
13.4mH ± 20%(1kH 1Vrms)
Drive system
Bipolar driving
2-2 phase, 1-2 phase, W1-2 phase, 2W1-2 phase, 4W1-2
phase constant-current driving
Driving conditions
Angle of rotation of pump shaft per step of driving resolution
motor: 1.067 degrees/pulse (2-2 phase conversion)
Drive Mode
Suction Speed Name
Revolving Speed of Pump
Wheel (revolutions/s)
Suction Flow
Rate (g/s)
IS7
Constant-value drive -2
–
–
IS6
Constant-value drive
–
–
IS5
Low speed
0.8
TBD
IS4
Normal
2.2
TBD
IS3
High speed
3
TBD
IS2
Super-high speed 1
5
TBD
IS1
Super-high speed 2
6
TBD
Direction of Pump Motor Rotation
Operation of Pump Unit
Counterclockwise (CCW) rotation as
viewed from the rear side of the output
shaft of the motor
Cap open (moving down)
Pump release
Wiper setting
CR unlocking
Clockwise (CW) rotation as view from the
rear side of the output shaft of the motor
Cap closed (moving up)
Pump suction
Wiper reset
CR locking
Directions of
rotation of
gears during
CW rotation
During CW rotation, the
pin of the Cap Assy moves
to raise the Cap Assy and
the Carriage Lock Lever.
Pin
Cap Unit
Carriage Lock Lever
Cap Assy
moves up to
push up the
lever and open
the tube cap.
Summary of Contents for Stylus Photo RX700 Series
Page 1: ...EPSON StylusPhotoRX700 Scanner Printer Copier SERVICE MANUAL ECOS SEMF05001 ...
Page 9: ...C H A P T E R 1 PRODUCTDESCRIPTION ...
Page 17: ...C H A P T E R 2 OPERATINGPRINCIPLES ...
Page 51: ...C H A P T E R 3 TROUBLESHOOTING ...
Page 76: ...C H A P T E R 4 DISASSEMBLYANDASSEMBLY ...
Page 133: ...C H A P T E R 5 ADJUSTMENT ...
Page 146: ...C H A P T E R 6 MAINTENANCE ...
Page 163: ...C H A P T E R 7 APPENDIX ...
Page 175: ...Model PM A900 Stylus PHOTO RX700 Board C583Main Sheet 1 3 Rev H ...
Page 176: ...Model PM A900 Stylus PHOTO RX700 Board C583Main Sheet 2 3 Rev H ...
Page 177: ...Model PM A900 Stylus PHOTO RX700 Board C583Main Sheet 3 3 Rev H ...
Page 178: ...Model PM A900 Stylus PHOTO RX700 Board C583 PNL PNL B Sheet 1 1 Rev C ...
Page 179: ...Model PM A900 Stylus PHOTO RX700 Board C583PSB Sheet 1 1 Rev H ...
Page 180: ...Model PM A900 Stylus PHOTO RX700 Board C583PSE Sheet 1 1 Rev F ...