Epson Stylus Pro 3800 - Page 39

Epson Stylus Pro 3800/3800C/3850/3880/3885/3890 Revision C
OPERATING PRINCIPLES Overview 39
 Sensors/Encoders/CSIC
Figure 2-3. Layout of Sensors/Encoders/CSIC
Table 2-3. List of Sensors/Encoders/CSIC
Fig. Name Function Specifications
ASF phase sensor
Detects the ASF origin
position.
Type: Transmissive photo interrupter
Voltage: 3.3 VDC
± 5 %
Release sensor
Detects an open/closed
state of the release roller.
Type: Transmissive photo interrupter
Voltage: 3.3 VDC
± 5 %
PF encoder Reads the PF scale.
Type: Linear encoder (180LPI)
Voltage: 3.3 VDC
± 5 %
Ink cover sensor
Detects an open/closed
state of the ink cover.
Type: Mechanical contact
Voltage: 3.3 VDC ± 5 %
Pressure pump home
sensor
Detects the home
position of the pressure
pump.
Type: Mechanical Contact
Voltage: 3.3 VDC
± 5 %
Pressure sensor
Detects the state of
pressurization by the
pressure pump.
Type: Reflective photo interrupter
Voltage: 3.3 VDC
± 5 %,
Comparator input
Board paper tray open
sensor
Detects the position of
the board paper tray.
Type : Mechanical Contact
Voltage: 3.3 VDC ± 5 %
Ink cartridge sensor
CSIC that stores ink
cartridge information
Type: CSIC
Voltage: 3.3 VDC ± 5 %
PG origin sensor
Detects the origin
position of the platen
gap.
Type: Transmissive photo interrupter
Voltage: 3.3 VDC
± 5 %
v
Ink change sensor
Detects the state of the
black ink switch lever.
Type: Mechanical contact
Voltage: 3.3 VDC
± 5 %
Ink mark sensor
 Auto Bi-D adjustment
 Auto Uni-D adjustment
 Auto nozzle check
Type: Diffuse reflective photo interrupter
Voltage: 3.3 VDC ± 5 %, LED: 5 V
Maintenance cartridge
cover sensor
Detects an open/closed
state of the maintenance
cartridge cover.
Type: Mechanical contact
Voltage: 3.3 VDC ± 5 %
PW sensor
 Paper leading edge
detection
 Paper width detection
Type: Reflective photo interrupter
Voltage: 3.3 VDC ± 5 %, LED: 3.3 V
Maintenance cartridge
sensor
CSIC that stores
maintenance cartridge
information.
Type: CSIC
Voltage: 3.3 VDC
± 5 %
1
2
3
4
5
6
7
8
9
10
11
12
13
14
PE sensor
Detects a rear edge of
paper.
Type: Transmissive photo interrupter
Voltage: 3.3 VDC
± 5 %
CR encoder Reads the CR scale.
Type: Linear Encoder (180LPI)
Voltage: 3.3 VDC ± 5 %
Table 2-3. List of Sensors/Encoders/CSIC
Fig. Name Function Specifications
15
16
16
15
14
9
3
10
12
8
2
11
1
4
5
6
7
13