Epson C82 Service Manual Appx.pdf
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CHAPTER
7
APPENDIX
EPSON Stylus C82
Revision A
7.1 Connector Summary
Table 7-3. CN8 - Printhead
Pin
Signal Name
I/O
Function
7.1.1 Major Component Unit
1
GND
-
Ground
The Major component units of this printer are as follows.
Main Board (C486 MAIN)
Power Supply Board (C486 PSB/PSE)
Panel Board (C486 PANEL)
2
COM
Out
Head drive pulse (trapezoid waveform)
3
VBS
Out
Power for nozzle selector IC
4
COM
Out
Head drive pulse (trapezoid waveform)
5
VBS
Out
Power for nozzle selector IC
6
COM
Out
Ground
See the following tables for the connector summary for the C486 MAIN Board and
each connector’s pin assignment.
7
VBS
Out
Power for nozzle selector IC
Table 7-1. Connector Summary for C486 MAIN
8
COM
Out
Head drive pulse (trapezoid waveform)
9
GND
-
Ground
Connector
Function
Ref.
10
GND
-
Ground
CN1
For connection with the Parallel Interface
-
11
TH
In
Thermistor detect signal
CN3
For connection with the USB
-
12
VCC3.3
Out
Logic power supply (+3.3V)
CN4
For connection with the PE sensor
Table 7-2
13
GND
-
Ground
CN8, CN9
For connection with the Printhead
Table 7-3, Table 7-4
14
NC
-
Not connected
CN12
For connection with the PF encoder
Table 7-5
15
GND
-
Ground
CN13
For connection with the PF motor
Table 7-6
16
ENCA
In
Encoder feed back signal ch.A
CN14
For connection with the CR motor
Table 7-7
17
EVDD
Out
Power for CR encoder
CN19
For connection with the Power supply board
Table 7-8
18
ENCB
In
Encoder feed back signal ch.B
CN20
For connection with the Panel board
Table 7-9
19
GND
-
Ground
20
CRST
Out
Reset signal for address counter of CSIC
Table 7-2. CN4 - PE sensor
21
GND
-
Ground
Pin
Signal Name
I/O
Function
22
CSCK
IN/Out
Clock signal for CSIC read/write
1
PE
In
Sensor detect signal
23
CVDD
Out
Power for CSIC memory
2
GND
-
Ground
3
PEV
-
Sensor power supply
APPENDIX
Connector Summary
52
EPSON Stylus C82
Revision A
Table 7-3. CN8 - Printhead
Table 7-4. CN9 - Printhead
Pin
Signal Name
I/O
Function
Pin
Signal Name
I/O
Function
24
CSD
Out
CSIC serial data
17
GND
-
Ground
25
GND
-
Ground
18
COM
Out
Head drive pulse (trapezoid waveform)
26
COO
In
Cartridge out signal
19
VBS
Out
Power for nozzle selector IC
20
COM
Out
Head drive pulse (trapezoid waveform)
21
VBS
Out
Power for nozzle selector IC
Table 7-4. CN9 - Printhead
22
COM
Out
Head drive pulse (trapezoid waveform)
Pin
Signal Name
I/O
Function
23
VBS
Out
Power for nozzle selector IC
1
GND
-
Ground
24
COM
Out
Head drive pulse (trapezoid waveform)
2
SI2
Out
Print data output for color nozzles
25
GND
-
Ground
3
GND
-
Ground
26
VHV
Out
+42V for the common voltage
4
SI1
Out
Print data output for black nozzles
5
GND
-
Ground
Table 7-5. CN12 - PF encoder
6
SCK
Out
Serial clock
7
GND
-
Ground
Pin
Signal Name
I/O
Function
8
CH
Out
Charge signal for the Trapezoidal wave-form
1
GND
-
Ground
9
GND
-
Ground
2
ENB
In
Feed-back signal from PF encoder ch. B
Abnormal temperature section circuit for the
color nozzles
3
VCC
Out
Power for the PF encoder
10
AND2
In
4
ENA
In
Feed-back signal from PF encoder ch. A
11
GND
-
Ground
5
GND
-
Ground
Abnormal temperature section circuit for the
black nozzles
12
AND1
In
13
GND
-
Ground
Table 7-6. CN13 - PF motor
14
LAT
Out
Head data latch pulse output by 64 bit
Pin
Signal Name
I/O
Function
15
VCC3.3
Out
Power for CSIC chip
1
PF-A
Out
Phase drive signal (-A)
Source signal for driving Trapezoidal wave-
form
16
NCHG
Out
2
PF-B
Out
Phase drive signal (-B)
APPENDIX
Connector Summary
53
EPSON Stylus C82
Revision A
7.1.2 EEPROM Address Map
Table 7-7. CN14 - CR motor
Table 7-10. EEPROM address map
Pin
Signal Name
I/O
Function
QPIT
setting
Factory
settings
1
CR-A
Out
Phase drive signal (-A)
Address
Explanation
Setting
2
CR-B
Out
Phase drive signal (-B)
00H
0FH
Password
-
01H
5AH
02H
Ink counter A
00H
00H
Table 7-8. CN19 - Power supply board
03H
04H
Pin
Signal Name
I/O
Function
Ink counter R0
00H
00H
1
+42V
Out
Power supply
05H
06H
2
GND
-
Ground
Ink counter R80
00H
00H
07H
3
+5V
Out
Logic power supply
bit7 : Reserved
bit6 : CSIC chg. seq2.
required
bit5 : In manual Cleaning
seq.
bit4 : Initial fill required
bit3 : Head Hot
bit2 : Ink cleaning seq.
bit1 : Reserved
bit0 : Time stamp occurred
4
PSC
Out
Power on/off switch (CPU monitors)
5
GND
-
Ground
6
+42V
Out
Power supply
08H
Ink flag1
00H
00H
Table 7-9. CN20 - Panel board
Pin
Signal Name
I/O
Function
bit7 : C CSIC chg. seq1.
required
bit6 : M CSIC chg. seq1.
required
bit5 : Y CSIC chg. seq1.
required
bit4 : Bk CSIC chg. seq1.
required
bit3 : C 1
st
cartridge
bit2 : M 1
st
cartridge
bit1 : Y 1
st
cartridge
bit0 : Bk 1
st
cartridge
1
LED1
Out
LED drive signal 1
2
SW1
In
Panel switch on/off 1
3
LED2
Out
LED drive signal 2
09H
Ink flag2
00H
00H
4
SW2
In
Panel switch on/off 2
5
LED0
Out
LED drive signal 0
6
GND
-
Ground
7
SW0
In
Panel switch on/off 0
8
VCC
Out
Power for the panel board
0AH
CL2 KK-Counter
00H
00H
0BH
TCL accumulate Counter
00H
00H
APPENDIX
Connector Summary
54
EPSON Stylus C82
Revision A
Table 7-10. EEPROM address map (continued)
Table 7-10. EEPROM address map (continued)
QPIT
setting
Factory
settings
QPIT
setting
Factory
settings
Address
Explanation
Setting
Address
Explanation
Setting
0CH
CSIC1 ink name1
00H
00H
bit7 : Reserved
bit6 : Reserved
bit5 : Reserved
bit4 : Reserved
bit3 : ECP speed
(0=Fast, 1=Slow)
bit2 : Compatibility speed
(0=Fast, 1=Slow)
bit1 : ECP mode
(0=Off, 1=On)
bit0 : IEEE1284 mode
(0=On, 1=Off)
0DH
CSIC2 ink name1
00H
00H
0EH
CSIC3 ink name1
00H
00H
0FH
CSIC4 ink name1
00H
00H
2AH
I/F control flags
00H
00H
10H
|
13H
00H
|
00H
00H
|
00H
Ink counter Cb
14H
|
17H
00H
|
00H
00H
|
00H
Ink counter Cy
2BH
CR duty Data for heat
00H
00H
18H
|
1BH
00H
|
00H
00H
|
00H
Ink counter Cc
2CH
PF duty Data for hear
00H
00H
00h : No error
01h : Memory free
error
02h : Board very hot or
very cold
03h : DRAM error
04h : Timer IC
initialize error
05h : Not detect
mechanism edge
06h : Failure CR
home seeking 1
07h : Failure CR
home seeking 2
08h : CR lock retry not
complete
09h-0Ch : Motor sequence
error
1CH
|
1FH
00H
|
00H
00H
|
00H
Ink counter Cm
20H
Printing time
00H
00H
21H
22H
CL time
00H
00H
23H
24H
2DH
Fatal Error Code for Sequence
00H
00H
Current time
00H
00H
25H
0 : Auto
1 : Parallel
26H
Interface selection
00H
00H
3 : USB
0 to 255 (by second, value
of 0 means 10 seconds)
27H
Interface time-out
0AH
0AH
0 : Auto
1 : On
0Dh
: Bk anode hot
error
28H
IEEE1284.4 for parallel
00H
01H
2 : Off
0Eh
: Color anode hot
error
0 : Auto
1 : On
29H
IEEE1284.4 for USB
00H
01H
2 : Off
APPENDIX
Connector Summary
55
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