Printhead - Epson WorkForce 600 Service Manual

EPSON WorkForce 600/EPSON Stylus OFFICE TX600FW/BX600FW/EPSON Stylus SX600FW/ME OFFICE 700FW
Table 2-3. ADF Mechanism Motors & Sensors
Name
Purpose:
ADF DOC (Detection of
document) Sensor
Type:
Purpose:
ADF PE Sensor
Type:
Type:
Voltage:
ADF Motor
Coil resistance: 28
Inductance:
Drive method:
ADF Motor
Above: ADF DOC Sensor
Below: ADF PE Sensor
Figure 2-4. Motors & Sensors in ADF Mechanism
OPERATING PRINCIPLES
Specification
To detect the presence of a document on the
document tray
Photo interrupter
Detection of paper top and bottom edges
Photo interrupter
4-phase 96-pole PM type stepping motor
42 VDC ± 5 % (DRV IC voltage)
Ω
o
± 7 % (at 25 C)
13.7 mH/phase Ref. (at 1 KHz, 1 Vrms)
PWM

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.
A#128
A#127
A#126
A column
A#3
A#2
A#1
Overview
C#128 D#128 E#128
B#128
D#127
C#127
E#127
B#127
C#126
D#126
B#126 E#126
C column E column
B column D column F column
C#3 D#3
E#3
B#3
C#2
D#2
E#2
B#2
D#1
C#1 E#1
B#1
Black Yellow Magenta
Carriage movement direction
Figure 2-5. Nozzle Layout
Revision A
F#128
F#127
F#126
F#3
F#2
F#1
Cyan
43
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