Stylus C40UX/C40SX/C20UX/C20SX
Revision B
PRODUCT DESCRIPTION
INTERFACE
13
1.4 INTERFACE
Interface specification for each model are as the following.
Parallel Interface :EPSON Stylus C40SX .EPSON Stylus C20SX
USB Interface :EPSON Stylus C40UX .EPSON Stylus C20UX
*This printer interface as standard.
1.4.1 USB Interface
Standard
: based on
“Universal Serial Bus Specifications Revision 1.1”
“Universal Serial Bus Device Class Definition for Printing Devices Version
1.1”
Bit rate
: 12Mbps (Full Speed Device)
Data encording
: NRZI
Adaptable connector
: USB Series B
Recommended cable length
: 2 meters
Connect er pin assinment and signals:
Figure 1-3. USB Pin Assignment
1.4.2 Parallel Interface (Forward Channel)
Transmission mode
: 8 bit parallel, IEEE-1284 compatibility mode
Synchronization
: By STROBE pulse
Handshaking
: By BUSY and ACKNLG signal
Signal level
: TTL compatible level
Adaptable connector
: 57-30360(amphenol) or equivalent
BUSY signal is set high before setting either -ERROR
low or PE high and held high until all these signals
return to their inactive state.
BUSY signal is at high level in the following cases.
-During data entry (see Data transmission timing)
-When input data buffer is full
-During -INIT signal is at low level or during
hardware initialization
-During printer error (See -ERROR signal)
ERROR signal is at low level when the printer is in one
of the following states.
-Printer hardware error (fatal error)
-Paper-out error
-Paper-jam error
-Ink-out error
-Ink overflow error
PE signal is at high level during paper-out error.
Data transmission timing :
Pin No.
Signal name
In/Out
Function description
1
VCC
-
Cable power. Maximum power consumption is
100mA
2
Data
bi-directional
Data
3
+Data
bi-directiona
data, pull up to +3.3V via 1.5K ohm resistor
4
Ground
-
Cable ground
DATA
-STROBE
BUSY
-ACKNLG
Summary of Contents for Stylus C40UX
Page 1: ...StylusC40UX C40SX C20UX C20SX Color Inkjet Printer SEIJ01002 SERVICE MANUAL ...
Page 8: ...C H A P T E R 1 PRODUCTDESCRIPTION ...
Page 24: ...C H A P T E R 2 OPERATINGPRINCIPLES ...
Page 44: ...C H A P T E R 3 TROUBLESHOOTING ...
Page 56: ...C H A P T E R 4 DISASSEMBLYANDASSEMBLY ...
Page 78: ...C H A P T E R 5 ADJUSTMENT ...
Page 97: ...Stylus C40UX C40SX C20UX C20SX Revision B Adjustment Overview 97 Figure 5 32 A4 Check pattern ...
Page 98: ...C H A P T E R 6 MAINTENANCE ...
Page 103: ...C H A P T E R 1 9 7 APPENDIX ...
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