EPSON Stylus Pro 3800/3800C/3850
Revision A
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
Summary of Contents for 3800 - Stylus Pro Color Inkjet Printer
Page 1: ...EPSONStylusPro3800 3800C 3850 Large Format Color Inkjet Printer S SERVICE MANUAL SEIJ06007 ...
Page 5: ...Revision Status Revision Date of Issue Description A November 30 2006 First release ...
Page 9: ...C H A P T E R 1 PRODUCTDESCRIPTION ...
Page 35: ...C H A P T E R 2 OPERATINGPRINCIPLES ...
Page 61: ...C H A P T E R 3 TROUBLESHOOTING ...
Page 85: ...C H A P T E R 4 DISASSEMBLY ASSEMBLY ...
Page 190: ...C H A P T E R 5 ADJUSTMENT ...
Page 250: ...C H A P T E R 6 MAINTENANCE ...
Page 262: ...C H A P T E R 7 APPENDIX ...
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