Epson Stylus Photo R290 - Motors & Sensors

Epson Stylus Photo R280/R285/R290/Epson Artisan 50/Epson Stylus Photo T50/T59/T60/P50 Revision C
Chapter 2 Operating Principles 2.1 Overview 24
Confidential
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
3PF 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