
EPSON Stylus Photo R280/R285/R290
Revision B
Chapter 2 Operating Principles
2.1 Overview
23
2.1.2 Motors & Sensors
Figure 2-2. Motors & Sensors in the Printer Mechanism
Table 2-3. List of Motors & Sensors
No.
Motor/Sensor Name
Function
1
Printhead
F3-MACH Turbo2 head (6 colors x 90 nozzles)
2
CR motor
Type: DC motor
Drive voltage: 42V DC
±
5% (voltage applied to the driver)
Coil resistance: 22.7
Ω
±
10%
Inductance: 17.5mH
±
25%
Drive method: PWM constant-current chopping
3
PF motor
Type: DC motor
Drive voltage: 42V DC
±
5% (voltage applied to the driver)
Coil resistance: 21.2
Ω
±
10%
Inductance: 17.2mH (1 kHz)
Drive method: PWM
4
PE sensor
Detecting items: paper end, leading edge of paper
Type: Transmissive photo interrupter
5
CR Contact module
Ink cartridge detection (CSIC)
6
CR Encoder sensor
Type: Transmissive photo interrupter
Resolution: 180 pulse/inch
7
PF Encoder sensor
Type: Transmissive photo interrupter
Resolution: 180 pulse/inch
8
PW sensor
Detecting items:
• Left/right edges of paper (before/during printing)
• Top edge of paper (before printing)
• Bottom edge of paper (during printing)
• Left/right/top/bottom of CDR (before printing)
Type: Reflective photo interrupter
9
APG sensor
Detecting items: APG position
Type: Transmissive photo interrupter
10
CDR Guide sensor
Detecting items: Up/Down status of the CDR Guide
Type: Mechanical contact
11
CDR Tray sensor
Detecting items: Presence of CDR tray
Type: Mechanical contact
12
Cover Open sensor
Detecting items: Open/Close status of the Printer Cover
Type: Mechanical contact
APG Sensor
CR Motor
PF Motor
PF Encoder Sensor
CDR Tray Sensor
CR Encoder Sensor
PE Sensor
PW Sensor
Cover Open Sensor
CDR Guide Sensor
CR Contact Module
Содержание Stylus Photo R290
Страница 1: ...EPSONStylusPhotoR280 R285 R290 Color Inkjet Printer SEIJ07003 SERVICE MANUAL ...
Страница 8: ...C H A P T E R 1 PRODUCTDESCRIPTION ...
Страница 21: ...C H A P T E R 2 OPERATINGPRINCIPLES ...
Страница 27: ...C H A P T E R 3 TROUBLESHOOTING ...
Страница 50: ...C H A P T E R 4 DISASSEMBLY ASSEMBLY ...
Страница 95: ...C H A P T E R 5 ADJUSTMENT ...
Страница 112: ...C H A P T E R 6 MAINTENANCE ...
Страница 120: ...C H A P T E R 7 APPENDIX ...
Страница 122: ...Model PM G860 Stylus Photo R280 R285 R290 Board C691 MAIN Rev A Sheet 1 1 ...
Страница 123: ...Model PM G860 Stylus Photo R280 R285 R290 Board C691 PNL Rev A Sheet 1 1 ...
Страница 124: ...Model PM G860 Stylus Photo R280 R285 R290 Board C691 PSB Rev A Sheet 1 1 ...
Страница 125: ...Model PM G860 Stylus Photo R280 R285 R290 Board C691 PSE Rev A Sheet 1 1 ...