Epson 3800 - Stylus Pro Color Inkjet Printer Service Manual page 39

EPSON Stylus Pro 3800/3800C/3850
† Sensors/Encoders/CSIC
Table 2-3. List of Sensors/Encoders/CSIC
Fig. Name Function
Detects the ASF origin
ASF phase sensor
1
position.
Detects an open/closed
Release sensor
2
state of the release roller.
PF encoder Reads the PF scale.
3
Detects an open/closed
Ink cover sensor
4
state of the ink cover.
Detects the home
Pressure pump home
position of the pressure
5
sensor
pump.
Detects the state of
Pressure sensor pressurization by the
6
pressure pump.
Board paper tray open Detects the position of
7
sensor the board paper tray.
CSIC that stores ink
Ink cartridge sensor
8
cartridge information
Detects the origin
PG origin sensor position of the platen
9
gap.
Detects the state of the
v
Ink change sensor
10
black ink switch lever.
†
Auto Bi-D adjustment
†
Ink mark sensor
11 Auto Uni-D adjustment
†
Auto nozzle check
Detects an open/closed
Maintenance cartridge
state of the maintenance
12
cover sensor
cartridge cover.
†
Paper leading edge
PW sensor detection
13
†
Paper width detection
CSIC that stores
Maintenance cartridge
maintenance cartridge
14
sensor
information.
OPERATING PRINCIPLES
Specifications
Type: Transmissive photo interrupter
±
Voltage: 3.3 VDC 5 %
Type: Transmissive photo interrupter
±
Voltage: 3.3 VDC 5 %
Type: Linear encoder (180LPI)
±
Voltage: 3.3 VDC 5 %
Type: Mechanical contact
±
Voltage: 3.3 VDC 5 %
Type: Mechanical Contact
±
Voltage: 3.3 VDC 5 %
Type: Reflective photo interrupter
±
Voltage: 3.3 VDC 5 %,
Comparator input
Type: Mechanical Contact
±
Voltage: 3.3 VDC 5 %
Type: CSIC
±
Voltage: 3.3 VDC 5 %
Type: Transmissive photo interrupter
±
Voltage: 3.3 VDC 5 %
Type: Mechanical contact
±
Voltage: 3.3 VDC 5 %
Type: Diffuse reflective photo interrupter
Voltage: 3.3 VDC ± 5 %, LED: 5 V
Type: Mechanical contact
±
Voltage: 3.3 VDC 5 %
Type: Reflective photo interrupter
±
Voltage: 3.3 VDC 5 %, LED: 3.3 V
Type: CSIC
±
Voltage: 3.3 VDC 5 %
Overview
Table 2-3. List of Sensors/Encoders/CSIC
Fig. Name Function
Detects a rear edge of
PE sensor
15
paper.
CR encoder Reads the CR scale.
16
1
2
3
4
5
6
7
8
9
Figure 2-3. Layout of Sensors/Encoders/CSIC
Revision A
Specifications
Type: Transmissive photo interrupter
±
Voltage: 3.3 VDC 5 %
Type: Linear Encoder (180LPI)
±
Voltage: 3.3 VDC 5 %
16
13
10
11 12
15
14
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