EPSON WorkForce 600/EPSON Stylus OFFICE TX600FW/BX600FW/EPSON Stylus SX600FW/ME OFFICE 700FW Revision A
OPERATING PRINCIPLES Overview 43
Confidential
Figure 2-4. Motors & Sensors in ADF Mechanism
2.1.3 Printhead
O6-CHIPS type printhead is employed, which produces variable sized dot and
economy dot. The printhead configuration is as follows.
Nozzle configuration
Black: 128 nozzles x 3
Color: 128 nozzles x 3 (cyan, magenta, yellow)
The nozzle layout as seen from behind the printhead is shown below.
Figure 2-5. Nozzle Layout
Table 2-3. ADF Mechanism Motors & Sensors
Name Specification
ADF DOC (Detection of
document) Sensor
Purpose: To detect the presence of a document on the
document tray
Type: Photo interrupter
ADF PE Sensor
Purpose: Detection of paper top and bottom edges
Type: Photo interrupter
ADF Motor
Type: 4-phase 96-pole PM type stepping motor
Voltage: 42 VDC ± 5 % (DRV IC voltage)
Coil resistance: 28
Ω ± 7 % (at 25
o
C)
Inductance: 13.7 mH/phase Ref. (at 1 KHz, 1 Vrms)
Drive method: PWM
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