Epson WorkForce 1100, Service Manual

Page: 25 / 163

WorkForce 1100/Epson Stylus Office T1110/B1100/T1100/Epson ME Office 1100 Revision C
Operating Principles Motors & Sensors 25
Confidential
2.5 Motors & Sensors
 Motors
 Sensors
Figure 2-3. Motors and Sensors Layout
Table 2-4. List of Motors
Fig. Name Specific
A PF Motor
Type: DC Motor Drive voltage: 42 V DC ± 5%
Armature resistance: 12.2

± 10%
B APG Motor
Type: DC Motor Drive voltage: 42 V DC ± 5%
Armature resistance: 64.7

± 15%
C ASF Motor
Type: 4-phase 48-pole PM type stepping motor Drive voltage: 42 V DC ± 5%
Winding resistance: 7.0

± 10% (per phase at 25°C)
D CR Motor
Type: DC Motor Drive voltage: 42 V DC ± 5%
Armature resistance: 23.6

± 10%
E Pump Motor
Type: 4-phase 48-pole PM type stepping motor Drive voltage: 42 V DC ± 5%
Winding resistance: 10.3

± 10% (per phase at 25°C)
Table 2-5. List of Sensors
Fig. Name Specific
1 PF Encoder sensor Type: Rotary Encoder Drive voltage: 3.3 V DC ± 5%
2 APG Sensor (1)
Type: Transmissive photo interrupter Drive voltage: 3.3 V DC ± 5%
Sensor output:
• High: In the domain of each PG position
• Low: Between PG positions
3 APG Sensor (2)
Type: Transmissive photo interrupter Drive voltage: 3.3 V DC
±
5%
Sensor output:
• High: In the domain of large PG
• Low: In the domain of small PG
4 ASF Sensor
Type: Transmissive photo interrupter Drive voltage: 3.3 V DC
±
5%
Sensor output:
• High: Home position
• Low: Other than home position
5 PE Sensor
Type: Transmissive photo interrupter Drive voltage: 3.3 V DC
±
5%
Sensor output:
• High (2.4 V or more): No paper
• Low (0.4 V or less): Paper exists
6 CR Encoder sensor Type: Linear Encoder Drive voltage: 3.3 V DC
±
5%
7 PW Sensor
Type: Reflective photo interrupter Drive voltage: 3.3 V DC ± 5%
Sensor output:
• High: No paper
• Low: Paper exists
8
Cover Open
Sensor
Type: Mechanical contact Drive voltage: 3.3 V DC ± 5%
Sensor output:
• High: Cover closed
• Low: Cover open
Table 2-5. List of Sensors
Fig. Name Specific
1
2
3
4
6
E
D
C
A
8
B
5
7