Epson Stylus Color C60, Руководство по обслуживанию

Страница: 26 / 188

EPSON Stylus C50/C60/C61/C62 Revision C
PRODUCT DESCRIPTION INTERFACE 18
NOTE: In/Out refers to the direction of signal flow from the printer’s point of
view.
1.3.2 Parallel Interface (Reserve Channel)
†
Transmission mode : IEEE-1284 nibble mode
†
Adaptable connector : See forward channel
†
Synchronization : Refer to the IEEE-1284 specification
†
Handshaking : Refer to the IEEE-1284 specification
†
Data trans. timing : Refer to the IEEE-1284 specification
†
Signal level : IEEE-1284 level 1 device
See forward channel
35 +5V - Out Pulled up to +5V via 3.3K ohm resistor.
17 Chassis GND - - Chassis GND.
16,33,
19-30
GND - - Signal GND.
15,34 NC - - Not connected.
Table 1-13. Connector pin assignment and signals (continued)
Pin No. Signal name
Return
GND pin
In/Out Functional description
Table 1-14. Connector pin assignment and signals
Pin No. Signal name
Return
GND pin
In/Out Functional description
1 HostClk 19 In Host clock signal.
2 DATA0 20 In
The DATA0 through DATA7 signals
represent data bits 0 to 7, respectively.
Each signal is at high level when data is
logical 1 and low level when data is
logical 0.
These signals are used to transfer the
1284 extensibility request values to the
printer.
3 DATA1 21 In
4 DATA2 22 In
5 DATA3 23 In
6 DATA4 24 In
7 DATA5 25 In
8 DATA6 26 In
9 DATA7 27 In
10 PtrClk 28 Out Printer clock signal.
11
PtrBusy /
DataBit-3,7
29 Out
Printer busy signal and reverse channel
transfer data bit 3 or 7.
12
AckDataReq
/ DataBit-2,6
28 Out
Acknowledge data request signal and
reverse channel transfer data bit 2 or 6.
13
Xflag /
DataBit-1,5
28 Out
X-flag signal and reverse channel
transfer data bit 1 or 5.
14 HostBusy 30 In Host busy signal.