Epson Stylus Photo RX650 - Motors and Sensors

EPSON Stylus PHOTO RX640/650 Revision A
Operating Principles Overview 17
2.1.2 Motors and Sensors
Figure 2-2. Motors and Sensors (Front Side of Mechanism)
Figure 2-3. Motors and Sensors (Scanner Unit)
Table 2-3. Motors and Sensors (Printer Mechanism)
Name Function
Printhead F3-MACH head (6 colors x 90 nozzles)
CR Motor
Type : DC motor
Voltage : 42V DC ± 5% (voltage applied to the driver)
Characteristics Armature resistance : 24.4Ω ± 10%
Inductance : 17.5mH ± 25%
Drive system : PWM system, constant-current chopping system
PF Motor
Type : DC motor
Voltage : 42V DC ± 5% (voltage applied to the driver)
Characteristics Armature resistance : 27.5Ω ± 10%
Inductance : 21.45mH (1kHz)
Drive system : PWM system
PE detector
Function : Detection of the paper tail end, Paper leading edge positioning
control
Detection method: Transmissive-type photo-interrupter
Ink Cartridge detector CSIC
PTS detector (CR)
Type : Linear encoder
Resolution : 1440 pulse/inch
PTS detector (PF)
Type : Linear encoder
Resolution : 180 pulses/inch
PW detector
Function : Paper left and right edge (before and during printing)
Paper top edge (before printing)
Paper bottom edge (during printing)
CD-R top, bottom, right and left edges (before printing)
Detection method: Reflective photosensor
APG detector
Function : APG position detection
Detection method: Transmissive-type photo-interrupter
CD-R Guide detector
Function : CD-R Guide up/down detection
Detection method: Mechanical contact detector
CD-R Tray detector
Function : CD-R Tray presence detection
Detection method: Mechanical contact detector
Table 2-4. Motors and Sensors (Scanner Unit)
Name Function
CR Motor
Type : 2-phase-200-pole PM type stepping motor
Voltage : 42V DC ± 5%
Drive system : Bipolar constant-current driving
HP detector
Function : Carriage home position detection
Detection method: Transmissive-type photo-interrupter
APG Sensor
CR Motor
PF Motor
PF Encoder
CD-R Guide Sensor
CD-R Tray Sensor
CR Encoder
PW Sensor
CSIC
PE Sensor
CR Motor
CCD Unit (CR Unit)
CCD Sensor Board
HP Sensor