I-O 2677e Ethernet Display User s Guide
Printer Operation
27
Using an Attached Printer
The I-O 2677e Ethernet Display logic unit has one USB printer port which can be configured for either
USB or USB Serial. You may attach one printer to the 2677e using a USB, USB/ Parallel, or a USB/
Serial cable. Selection of the printer driver and port configuration are accomplished in the Local Setup
function or through the I-O Configuration Utility.
The printer is a host-addressable printer, which means that host print jobs can be sent directly to the
attached printer. Refer to the Printing Operation chapter for more details.
The current 5250 Printer Emulation Parameters can be printed by starting the printer emulation and
from the Printer Control Panel, select the Printer Test.
N
OTE
:
T
HERE ARE A NUMBER OF PRINTER PARAMETERS WHICH ARE CONFIGURABLE BEYOND THOSE
YOU SEE ON THE PRINTER CONTROL PANEL
.
T
HOSE PARAMETERS ARE SHOWN ON THE SECOND PAGE OF
THE PRINTER TEST
.
C
HANGING THE EMULATION PARAMETERS ARE ACCOMPLISHED BY DOWNLOADING
CHANGE COMMANDS USING
IO’
S
C
OMMAND
P
ASS
-T
HROUGH
.
R
EFER TO THE
H
OST
P
RINT
D
OWNLOAD
SECTION FOR INSTRUCTIONS ON CHANGING
E
MULATION
P
ARAMETERS
.
Printing Operation
This chapter describes in detail theTN5250e printer operation. Also described are I-O s advanced
printing features that allow printer specific commands to be passed from the host to the printer as well
as commands that will allow the printer session to be customized.
One printer may be attached to the 2677e. The printer may be a laser or dot-matrix printer with
connection being either USB, USB/ Parallel or USB/ Serial. Connection to the IBM host is done over
Ethernet using the TCP/IP printing protocol of TN5250e.
On the IBM host side, TN5250e is a self-configuring protocol that creates an IBM 3812-1 page printer
device description and writer. Since a 3812-1 page printer is a laser printer, this would limit the type of
printer that could be attached to only laser printers. To overcome this limitation, I-O s 5250 printer
emulation contains a laser to dot-matrix conversion function. 3812 SCS laser commands are converted
into 4214 SCS dot-matrix commands. Then the EBCDIC data stream is converted into ASCII and the
SCS commands are converted into, Epson, or IBM Proprinter commands. This allows you to attach
either a laser printer or a dot-matrix printer to the I-O 2677e.
N
OTE
:
F
ORMS
A
LIGNMENT IS NOT A FUNCTION OF A
3812
PRINTER
,
HOWEVER YOU CAN GET
ALIGNMENT MESSAGES ON A MATRIX PRINTER BY CHANGING THE
F
ORM
F
EED OPTION IN THE
H
OST
PRINTER CONFIGURATION TO
*
CONT
.
Laser Printer Operation
The I-O TN5250e printer emulation module allows you to operate any PCL laser printer just as you
would an IBM 3812 printer. The following section describes how to access the many features of I-
O’s
5250 printer emulation of the IBM 3812 printer.
The IBM 3812-1 printer is a laser-type printer that provides font changing capability, plus text rotation
and compression features called Automatic Print Orientation (APO) and Computer Output Reduction
(COR).
The I-O 5250 printer emulation provides bolding, underlining, super and subscripts by recognizing the
host commands for these features in the document. A shadow print for bolding is performed
automatically on fixed pitch fonts. For proportionally spaced (typographic) fonts, the user must specify
the font that is to be printed.