Motors & Sensors - Epson Stylus OFFICE B30 Service Manual

EPSON Stylus C110/C120/D120/WorkForce 30/EPSON Stylus OFFICE B30/T30/T33/ME OFFICE 70
2.1.2 Motors & Sensors
EPSON Stylus C110/C120/D120/WorkForce 30/EPSON Stylus OFFICE B30/T30/
T33/ME OFFICE 70 printer mechanism is equipped with the following printhead,
motors and sensors. Figure 2-3 shows their locations.
Table 2-1. List of Motors & Sensors
No. Name
F3-3 MACH Turbo2 head
1 Printhead
(Black: 180 nozzles x 2, Color: 180 nozzles (60 nozzles* x 3 colors) x 1
Type:
Drive voltage:
2 CR Motor
Characteristics: Coil resistance: 22.7
Drive method:
Type:
Drive voltage:
3 PF Motor Characteristics: Coil resistance: 21.2
Drive method:
Purpose:
4 PE Sensor
Type:
5 CR contact module CSIC board
Type:
6 CR Encoder Sensor
Resolution: 180 pulse/inch
Type:
7 PF Encoder Sensor
Resolution: 180 pulse/inch
Purpose:
8 Cover Open Sensor
Type:
Note " * " : The No.1 nozzle of each color is used only for executing flushing, and is not used for
printing.
OPERATING PRINCIPLE
Specification
DC motor
42VDC +/- 5% (DRV IC voltage)
Ω
+/- 10%
Inductance: 15.9mH (1KHz)
PWM, constant-current chopping
DC motor
42VDC +/- 5% (DRV IC voltage)
Ω
+/- 10%
Inductance: 17.2 mH (1kHz)
PWM, constant-current chopping
Detection of paper top and bottom edge, for control to set
paper at the print start position
Photo interrupter
Photo interrupter
Photo interrupter
Detection of open/close status of the printer cover
Mechanical contact
Cover Open Sensor
PF Motor
PF Encoder Sensor
Figure 2-2. Motors & Sensors in Printer Mechanism
Overview
CR Encoder Sensor
CR Contact Module
CR Motor
PE Sensor
Printhead
Revision C
22
Confidential