Operating Principles
Mechanism Operating Principles
2.2.2 Carriage Mechanism
The Carriage Mechanism consists of the CR Motor, CR Belt, Driven Pulley Assy, CR
Guide Shafts (x2), Carriage Assy, CR Scale Mounting Plate Assy, Parallelism Adjust
Bushes (x4), APG Assy, etc.
2.2.2.1 CR Motor Specifications
2.2.2.2 PW Sensor
Function
Detection of the top, bottom, right and left edges of a cut sheet
Detection of the center of CD-R
Detector specifications
Switch mode
Note :
The leading signal is A/D-converted in 8 bits.
Figure 2-7. Carriage Mechanism
Figure 2-8. Bottom of Carriage Assy
Item
Specifications
Type
DC brush motor (Mabuchi Motor RS445PB-15205B)
Voltage
42 V (DC voltage) ± 5% (voltage applied to the driver)
Characteristics
Armature resistance
23.6
Ω
± 15%
Inductance
17.5mH ± 25%
Rotor inertia
20.8 gcm
2
Item
Specifications
Detection method
Photo-electric conversion system (reflection type) (SHARP
GP2S700HCP)
Electrical
characteristics
Open-collector
Collector withstand voltage 35 V or below
Sink current
0.2 mA or below
Drive voltage 1
3.3 V ± 5%
Drive voltage 2
3.3 V ± 5%
Detected Condition
Switch Mode
Detector Output
There is paper
Open
Low voltage
There is no paper
Closed
High voltage
CR Guide Shaft (x2)
Carriage Assy
CR Motor
Driven Pulley Assy
Linear Scale
CR Encoder
CR Belt
CR Scale Mounting Plate Assy
Printhead
CR Encoder Board
PW Sensor
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 ...