HP LaserJet II Serie Manual De Instrucciones página 369

HP 33440/HP 33449 COMBINED SERVICE MANUAL
The HP 33440 and HP 33449 printers support an RS-232-C serial interface, an RS-422A
differential serial interface, and a Centronics parallel interface. The back of the printer has two
connectors, parallel and serial, allowing you to connect one of the three interfaces.
Use the Control Panel Confi~ration Menu to configure the interface. The printer stores
configuration information in non-volatile RAM, which means the printer saves the configuration
even if you turn off the printer. For more detailed information, see the bserJet series 11Printer
Technical Reference Manual or the berJet III Printer Technical Reference Manual.
PARALLEL INTERFACE
To configure your printer for parallel 1/0 operation, use the Configuration Menu and the
instructions in the pamphlets, Your Road Map to setting up Your kserJet series II Printer (see
Appendti A) or Your Guide to Setting Up Your tiserJet III Printer (see Appendh B). When you
configure your printer for parallel operation, you ean send data to the printer using the Centronics
par~el communication protocol. Table D-1 lists the signals and pin designations used for parallel
communication.
Table D-1. Parallel Intt
Data 1 (Input)
Data
2
(Input)
t
Data
3
(In~ut)
I
Data
4
(In~ut)
E
Select (Output)
NC
NC
o mc
Chassis GND
I +5
mc
(outDut)
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
Connector Pin Assignments.
=
Pin- ~~ ' --:;: :si*I :;.. -;;,-::<
22
Data
3
(GND)
23 Data 4 (GND)
31 I-In~ut Pfime (In~ut) I
36 I NC
I
The dash (-) before some signals indicates that the signal is negative true (active LOW). GND
means the connection is a ground. NC indicates that the pin has no connection.
D-3