EPSON Stylus COLOR 760
Revision C
PRODUCT DESCRIPTION
INTERFACE
13
1.3 INTERFACE
This printer provides USB and parallel interface as standard.
1.3.1 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:
n
During data entry (see data transmission timing)
n
When input data buffer is full
n
During -INIT signal is at low level or during hardware initialization
n
During printer error (see -ERROR signal)
n
When the parallel interface is not selected
ERROR signal is at low level when the printer is in one of the following states:
n
Printer hardware error (fatal error)
n
Paper-out error
n
Paper-jam error
n
Ink-out error
PE signal is at high level during paper-out error.
Figure 1-2. Data Transmission Timing
*
Rise and fall time of every output signal.
** Rise and fall time of every input signal.
*** Typical timing for tack is shown on the following page.
Table 1-3.
Parameter
Minimum
Maximum
tsetup
500ns
-
thold
500ns
-
tstb
500ns
-
tready
0
-
tbusy
-
500ns
tt-out*
-
120ns
tt-in**
-
200ns
treply
0
-
tack
500ns
10us
tnbusy
0
-
tnext
0
-
DATA
data byte n
data byte n+1
-STROBE
BUSY
-ACKNLG
t
hold
t
setup
t
stb
t
ready
t
busy
t
reply
t
ack
t
nbusy
t
next
Содержание Stylus Color 760
Страница 1: ...EPSONStylusCOLOR760 Color ink jet printer SEIJ99004 SERVICE MANUAL ...
Страница 8: ...C H A P T E R PRODUCTDESCRIPTION ...
Страница 27: ...C H A P T E R OPERATINGPRINCIPLES ...
Страница 53: ...C H A P T E R TROUBLESHOOTING ...
Страница 72: ...C H A P T E R DISASSEMBLYANDASSEMBLY ...
Страница 109: ...C H A P T E R ADJUSTMENT ...
Страница 142: ...C H A P T E R MAINTENANCE ...
Страница 152: ...APPENDIX C H A P T E R ...
Страница 163: ...PSON Stylus COLOR 760 Revision C ppendix Circuit Board Component Layouts 163 Figure 7 5 C298PNL Component Layout ...