Epson StylusPro 10000 Service Manual page 32

EPSON Stylus Pro 10000/10000CF
Pin No. Signal Name
HostClk
1
DATA0
2
DATA1
3
DATA2
4
DATA3
5
DATA4
6
DATA5
7
DATA6
8
DATA7
9
10 PtrClk
PtrBusy / DataBit-3,7
11
12 AckDataReq / DataBit-2,6
Xflag / DataBit-1,5
13
14 HostBusy
-INIT
31
32 -DataAvail / DataBit-0,4
1284-Active
36
18 Logic-H
+5V
35
17 Chassis GND
GND
16,33,19-30
15,34 NC
* In/Out refers to the direction of signal flow from the printer's point of view.
Product Description
Table 1-16. Connector Pin Assignments - Nibble Mode
Return GND Pin In/Out*
19 In
20 In
21 In
22 In
23 In
24 In
25 In
26 In
27 In
28 Out
29 Out
28 Out
28 Out
30 In
30 In
29 Out
30 In
- Out
- Out
-
-
-
Interfaces
Host clock signal.
The DATA0 through DATA7 signals represent data bits 0 to7, respectively.
Each signal is at high level when data is logical 1 and low level when data is
logical 0.
Printer clock signal.
Printer busy signal and reverse channel transfer data bit 3 or 7.
Acknowledge data request signal and reverse channel transfer data bit 2 or 6.
X-flag signal and reverse channel transfer data bit 1 or 5.
In Host busy signal.
Not used.
Data available signal and reverse channel transfer data bit 0 or 4.
1284 active signal.
Pulled up to +5 V via 3.9 K ohm resistor.
Pulled up to +5 V via 1.0 K ohm resistor.
- Chassis GND.
Signal GND.
-
- Not connected.
Revision B
Functional Description
32