All rights reserved. No part of this publication may be reproduced, stored in a
retrieval system, or transmitted in any form without the prior written permission
of Seiko Epson Corporation.
of the information contained herein. While every precaution has been taken in the
preparation of this book, Seiko Epson Corporation assumes no responsibility for
errors or omissions. Neither is any liability assumed for damages resulting from
the use of the information contained herein.
Neither Seiko Epson Corporation nor its affiliates shall be liable to the purchaser
of this product or third parties for damages, losses, costs, or expenses incurred
by the purchaser or third parties as a result of:
product or unauthorized modifications, repairs, or alterations to this product, or
(excluding the U.S.) failure to strictly comply with Seiko Epson Corporation’s
operating and maintenance instructions.
Epson and Epson ESC/P are registered trademarks of Seiko Epson Corporation.
IBM is a registered trademark of International Business Machines Corporation.
HP LaserJet is a trademark, and Hewlett-Packard and PCL are registered
trademarks of Hewlett-Packard Company.
Centronics is a registered trademark of Centronics Data Computer Corporation.
PostScript is a trademark of Adobe Systems incorporated.
Command-Pass-Thru is a registered trademark of I-O Corporation.
WordPerfect is a registered trademark of WordPerfect Corporation.
Microsoft is a registered trademark of Microsoft Corporation.
Univers, Times, and Helvetica are registered trademarks of Linotype AG and its
subsidiaries.
CG Times, CG Century Schoolbook, and Microstyle are products and CG
Triumvirate is a trademark of AGFA Compugraphic, a Division of Agfa Corporation.
Serifa is a trademark of Fundicion Tipografica Neufville, S.A.
ITC Dingbats is a U.S. registered trademark of International Typeface Corporation.
No patent liability is assumed with respect to the use
accident, misuse, or abuse of this
General Notice: Other product names used herein are for identification purposes
only and may be trademarks of their respective companies.
This equipment has bean tested and found to comply with the limits for
a Class A digital device. pursuant to Part 15 of the FCC Rules. These
limits are designed to provide reasonable protection against harmful
interference when the equipment is operated
environment. This equipment generates, uses, and can radiate radio
frequency energy and, if not Installed and used in accordance with the
instruction manual, may cause harmful interference in which case the
user will be required to correct the interference at M
This devise complies with Part 15 of the FCC Rules. Operation is
subject to the following two conditions:
harmful interference, and (2) this device must accept any interference
received, including interference that may cause undesired operation.
FOR CANADIAN USERS
This digital apparatus does not exceed the Class A limits for radio noise
emissions from digital apparatus as set out in the radio interference
regulations of the Canadian Department of Communications.
Le présent appareil numérique n'émet pas de bruits radioélectriques
d&passant les limits applicables aux appareils numériques de Class A
prescrites dans le réglement sur le brouillage radioélectrique édicté par
le Ministére des Communications du Canada.
(1) This device may not cause
in
a commercial
S
own expense.
WARNING
The connection of a non-shielded equipment interface cable to this
equipment will invalldate the FCC Certification of this device and may
cause interference levels which exceed the limits established by the
FCC for this equipment.
use a shielded equipment interface cable with this device. When this
equipment is attached to some printers, you should not leave cables
connected to the printer’s built-In connectors. See your printer’s user’s
manual for details.
Changes or modifications not expressly approved by Seiko Epson
Corporation, could void the user’s authority to operate the equipment.
It is the responsibility of the user to obtain and
Appendix A.Host Download Configuration Commands
Appendix B.
Appendix C.
Push Button Setup
Sample Printouts
Font ID
.................................
..................................
S
9
10
13
14
15
16
17
INTRODUCTION
The Epson 3270 coax interface card C82314* with PC auto parallel sharing port
is an optional Epson interface card. It allows the direct connection of supported
Epson ESC/P dot matrix and laser printers to a coax type-A adapter of an IBM
3174/3274/3276 Control Unit or IBM 3270 mainframe system. In addition, a
Centronics compatible mini-parallel port with auto switching allows a PC or
alternate host to share the printer with the 3270 host for optimum printer
utilization.
The Epson interface can emulate IBM 3287, 3268, 4214-1, and 4224 (non-IPDS)
dot matrix printers and IBM 3812-1 and 4028 (non-IPDS) laser printers. When the
interface is installed in an Epson printer with HP LaserJet emulation, the Computer
Output Reduction (COR) feature enables data processing reports to automatically
be reduced and printed on letter size paper. Also, custom Font ID’s allow you to
specify multiple fonts that will automatically be used in your documents.
The Epson interface supports LU3 (DSC) and LUl .(SCS) mode printing. It has a
large selection of user definable setup selections (including IBM RPQ options) that
can be changed and stored in non-volatile memory using commands imbedded
in documents sent to the printer (downloaded from the host). A Command
Pass-Thru (hex transparency) feature allows a user to access the special features
of the Epson printer directly from the coax host. The interface does not support
coax host-controlled color printing options, AFP, IPDS, GDDM, APL, programmed
symbols.
Epson printers that have a slot for an optional interface card are supported:
DLQ-2000
SQ-870/1 170
ActionPrinter 5000/5500 ActionLaserll
Note: See your printer’s User’s Guide for information on the optional interfaces
it supports. Contact your Epson dealer for further information on C82314*
interface support.
LQ-570/1070
EPL-4000/4100
LQ870/1170
EPL-8000/8100
GENERAL SPECIFICATIONS
Input Protocol:
Output Protocol:
Receive Data Rate:
Data Buffering:
Language Support:
Connectors:
Indicators:
Switches:
Power Required:
LED SPECIFICATIONS
LED Indication
status
IBM 3270 coax LU1 or LU3 protocol and Centronics
parallel protocol
Epson parallel, internal interface connection
Maximum burst: 2.3587 million bits/second
4K byte coax communication buffer
Standard IBM 3174 language sections (See
Appendix A, Command 8 for list of languages.)
Female BNC coax connector and mini-Centronics
parallel connector for alternate host (PC) sharing
One red LED
One green LED
Two push buttons
+5V @ 240mA, supplied by the printer
Green ON
Green OFF
Red ON
Red Blinks
Twice
Red Remains
on after turn on
The control unit (CU) is communicating with the interface card
(within past 30 seconds).
The CU is not communicating with the interface card.
The program attention (PA) manual option (see Appendix A,
command 35) is active and the printer received a request (from
the host software) for a PA button to be pressed by the user so
printing can continue.
The user pressed and released both buttons at the same time
(for less than 1 second) sending a cancel message to the host.
The interface encountered problems during its self test.
(The red LED goes off after a normal self test.)
BUTTON SPECIFICATIONS
Button
Top
Bottom
Both
Functions
PA1 response when the PA red LED is on
Prints out a page listing when pressed and held for 2 seconds. If the
coax cable is disconnected, then a RAM/ROM self test is also
performed and the results are printed.
YES response during push button setup (see Appendix B)
PA2 response when the PA red LED is on
Begins restoration of factory default setup (see “Restoring Factory
Default Configuration’ section)
NO response during push button setup (see Appendix B)
After turning on, if both buttons are pressed and released (for less
than one second) a cancel signal is sent to the host. The red LED
will blink twice times to confirm the cancel signal was sent. (Note:
The printer will continue printing until its buffer is empty.)
After turning on, if both buttons are pressed and held more than two
seconds, the interface enters the hexadecimal (buffer dump)
diagnostic printing mode. The printer then prints “Buffer print is
active’ and the green LED will blink twice. Turn off the printer to exit
this mode or press and hold both buttons for more than two seconds
which will cause the green LED to blink twice. (Also, see Command
42 in Appendix A for a download command.)
INSTALLATION
CONTENTS OF INTERFACE KIT
Make sure the interface kit includes all items listed below:
Coax interface card
PC Auto Parallel Sharing Cable
User’s guide
INSTALLING THE INTERFACE CARD
A
Install the coax interface card in the same way as any Epson optional interface.
This procedure is explained in detail for the individual Epson printers in either an
appendix or the section on Using Printer Options in the user’s manual that comes
with the printer.
card. Secure the interface with the thumb screws. Take precautions to protect the
interface card from static discharge by touching a grounded surface immediately
before installing.
The mini-Centronics connector on the coax interface card can be used for
automatic alternate host (PC) sharing by using the parallel printer share cable
included in the box with the interface.
The interface card is supplied with default setup selections stored in its nonvolatile
memory. These default selections will suffice for most user requirements. Refer
to Appendix A for a listing of the user definable setup selections and custom
features.
Please follow the instructions carefully to install the coax interface
EXECUTING A SELF-TEST
Verify proper installation of the coax interface card by performing an interface card
self-test. The self-test also prints out the current setup selections.
1.
Before testing the interface card, perform a test of the printer to confirm
that it is functional. Refer to instructions in the printer’s User’s Guide. Do
not proceed unless the printer is operational.
2. To test the coax interface, disconnect the coax and mini-Centronics
connectors from the interface and turn the printer on. After the printer is
ready, press the top (PA1)
than two seconds. Release the button and the self test results are printed
as well as a listing of the setup selections.
3. The printer prints out the self-test page if the interface is installed
properly. See the self test printout example, Appendix C.
4.
If nothing prints, the interface is not installed properly. A separate test of
the interface may be performed by disconnecting the coax and miniCentronics connectors and turning on the printer. If the LED displays red
and then goes out, it indicates successful completion of the self tests. If
the red LED remains on, the self tests found a problem with the interface.
button
on the interface and hold it for more
INTERFACE CONFIGURATION
After installing the interface card and performing a self-test, the interface is ready
to operate in most environments. The factory default settings will be satisfactory
for most programs and applications. Be sure to check Command 60 on the self
test print out to confirm that the interface is configured correctly for either a dot
matrix or HP laser printer.
If you are using a laser printer, make sure you set your printer’s emulation mode
to match that of the interface: HP emulation or dot matrix emulation. (If your
laser printer supports Epson Job Language --EJL- commands, do not change the
printer’s emulation mode using the EJL command or the command-pass-thru
feature while this interface is installed. Also, you may not be able to change the
printer mode using the control panel.)
If your printer prints a warning message, the interface and printer emulations do
not match. Use your printer’s control panel to match the interface and printer
emulation settings.
Never select the PostScriptTM printer mode while this interface is installed.
If the printer is a matrix printer, you must select character set ‘Code Page 850’ in
the setup of the printer. Refer to the printer’s User’s Guide to determine how to
select the character set by using either dip switches or the front panel.
have selected HP LaserJet emulation, the ‘Roman 8’ character set is automatically
selected.
If you
All configuration selections can be changed by simply embedding commands (as
defined in Appendix A) in a 3270 print job or print screen (hard copy) that is sent
to the printer. These are called Host Download Commands. If the embedded
command is sent correctly, the characters that create the command are not
printed. If the command is printed, then the interface did not recognize the
command because of a problem in the format of the command. Correct the
problem and send the command again. If you wish to confirm the active setup
selections for the printer, you can print a listing page by either performing a self
test (pressing and holding the top button for 2 seconds) or sending the ‘98,1’
command to the interface.
Unless the ‘99,6’ command is sent to save the active setup in non-volatile (NV)
memory, the configuration commands only change the active setup values and
are lost when the printer is turned off. By sending a ‘98,1’ command immediately
after turning on the printer, you can identify the selections that are stored in NV
memory of the interface.
5
If a coax host Is not available and basic setup selections need to be changed, the
interface has the option of a push button setup as defined in Appendix B. This
option enables the basic interface features and RPQ options to be selected.
RESTORING FACTORY DEFAULT CONFIGURATION
The factory default configuration selections can be restored to the NV memory of
the interface by either sending a Host Download Command ‘98,0’ or by turning
on the printer when the coax cable is disconnected and performing the following
steps (waft for printer to be READY):
1.
Press and hold the bottom (PA2) button for more than two seconds and
then release; the red and green LED begin to blink alternately.
2.
Press and release the top (PA1) button; only the green LED blinks.
3.
Press and release the bottom (PA2) button; the red LED blinks twice.
4.
Sequence is complete. Factory defaults are restored to the NV memory
of the interface. Turn the printer off and then back on.
PRINTER FEATURE ACCESS METHODS
This interface features three methods for accessing the special features of Epson
printers not normally available in the IBM printers being emulated:
Command-Pass-Thru
Custom User Strings
SCS Mode Transparent Data
Each of these methods is described below.
1. COMMAND-PASS-THRU
DESCRIPTION
The Command-Pass-Thru (Hex Transparency) feature allows the user to access
all of the built-in features of the Epson printer whether or not these features can
be accessed by the IBM host software. Command-Pass-Thru provides a method
of placing printer specific command sequences into the data sent to the printer
from the host. The coax interface recognizes these special sequences and
“Passes the Command Thru’ to the printer. This feature allows the programmer
6
to’ access all of the Epson features such as color printing, superscripts; and
subscripts.
Command-Pass-Thru is accomplished by converting the printer command
sequence into a series of two digit hexadecimal values. For example, an Escape
has a decimal value of 27 and a hexadecimal value of 1B.
Thru, an Escape is the character ‘1’ followed by the character ‘B’.
coax interface to recognize the sequence, it is proceeded by a ‘delimiter
sequence consisting of an ampersand (&), followed by a percent (%). Several
commands may be contained within the enclosing &% pairs. Once the first &%
is detected, the coax interface passes hexadecimal data to the printer until it
receives the next &% or a character is received that is not in the hexadecimal
range of 0 to 9 or A to F -(upper case letters only).
in addition, the user has the option of selecting a different delimiter sequence
using setup command 40 (see Appendix A, command 40).
In Command-Pass-
To
allow the
EXAMPLE
in order to highlight a passage in a document, you may wish to use an Epson
printer command such as the emphasized mode. The printer command sequence
for emphasized printing listed in your Epson printer’s manual is ‘ESC
45’ in hexadecimal, to begin emphasized print and ‘ESC F’, or ‘1B 46’ in
hexadecimal, to end emphasized print.
At the point in the document where emphasized printing is desired, the sequence
&% 1 B 4 5 & % should appear. When you wish to cancel emphasized printing,
insert the sequence & % 1 B 4 6 & %. If the document is viewed on a CRT
terminal, these characters are displayed.During printing, however, these
command sequences only start and stop emphasized mode and do not appear
on the paper and do not take up any space.
E’,
or ‘1B
NOTE: In this example, the characters are separated by spaces for clarity.
The spaces between each individual character must be removed from
the actual command, but single spaces between pairs of characters
are permitted.
RULES FOR COMMAND-PASS-THRU
Command-Pass-Thru must begin with an &% or the alternate delimiter
characters specified in Command 40.
Hexadecimal values must be used in the command. These values
represent ASCII data which is understood by the Epson printer.
Valid characters for hex codes are 0-9 and A-F (upper case letters only).
No spaces are allowed in the command between the ‘delimiter sequence
&% and the first hexadecimal value.
A single space is permitted, but not required, to separate pairs of
hexadecimal letters (to aid in easier interpretation of the hex codes).
If an error in formatting the command sequence occurs, the interface will
resume printing at the point in the sequence where the error occurs.
The data included in a Command-Pass-Thru string can span print buffers.
This allows transmission of long strings of hexadecimal data.
During Command-Pass-Thru, the coax interface ignores control codes
(NL, LF, CR and FF) but honors the EM code.
2. CUSTOM USER STRINGS
Host download Command 55 (see Appendix A, Command 55) allows a user to
permanently define six custom user strings that are frequently used (for example,
a special font selection). The custom user string isactivated by simply putting the
delimiter (&%), a capital letter U, and the number of the desired custom user
string in the text of a page, i.e. "&%U3". The custom user strings can be any
combination of text or special commands for the printer, especially ones that are
often used.
3. SCS MODE TRANSPARENT DATA
SCS transparent mode (SCS TRN code 35) provides a method for transparent
data transmission when operating in LU1 mode. To use this method, you must
be connected to a system using SNA protocol and be operating as a Logical Unit
Type 1.
A SCS TRN sequence begins with a one byte binary count immediately following
the TRN code. The count indicates the number of bytes, not including the count
byte, of transparent data to follow.
sent in each sequence.
SCS TRN data is user-defined and is not scanned for SCS control codes.
However, to emulate the characteristics of the IBM 3287, non-printable characters
(i.e., control characters) are converted to hyphens. Data is translated to ASCII,
with undefined characters printed as hyphens. This coax interface offers a
configurable option to emulate the IBM 3287 or to pass the data without
translation. Refer to Appendix A, Command 35, SCS TRN TRANSLATE.
Up to 256 bytes of transparent data can be
Another method of Transparent Data Transmission is the Xerox defined SCS TRN
code 36. Generally accepted for use
the same as the Coax Interface non-translate method above. Control code
sequence rules are the same for SCS code 36 as for code 35.
in
laser printer applications, this method is
ALTERNATE HOST (PC) AUTO PARALLEL SHARING
If the C82314* is connected to a PC with
must be turned on.
The coax interface card has a mini-Centronics parallel connector which enables
it to automatically share the printer between the 3270 host and the alternate host
(usually a personal computer). The interface periodically checks the 3270 host
and the PC until it finds input data to be printed. The interface continues to print
using data from the current source until the input data stops and no additional
data is received for the period of time specified with Commands 50 or 51.
(Factory defaults are 5 seconds for the parallel port and 10 seconds for the 3270
port.) The other source is then checked for the presence of data to be printed.
The automatic checking for data from either sources is accomplished constantly
when both hosts are idle. The host with the first data will have printing priority
until it has printed all of its data and remained idle for the time interval specified
in Commands 50 or 51.
The Epson printer may have large print buffers, so an actual physical break in
printing may not be seen between print jobs, yet the interface pauses for the
specified time period without passing data to the printer before changing to the
other port. While the 3270 host is active, the parallel port accepts the first parallel
byte and then goes busy. This allows the interface to know that parallel data is
waiting. Conversely, while the parallel port is printing, the 3270 coax port will
receive data and then send a busy signal to the host until the printer is available
(the time-out period on the parallel port has expired with no additional data having
been received). PC printing longer than 20 minutes may cause the 3270 host to
drop communication with the printer.
the parallel sharing cable, the PC
Prior to printing a coax host document, if the previous document comes from the
PC sharing port, the interface card sends the coax port initialization string to the
printer and restores the printer’s format that was fast specified by the coax host
when switching to coax printing (see Appendix A, Command 57). Also, before
printing an initial document from the PC Share port, the interface sends the user
defined shared port initialization string (see Appendix A Command 56). The
alternate (PC) host must send the printer all of the necessary formatting
instructions and commands
for
correct printing.
PARALLEL INTERFACE SPECIFICATION
The C82314* coax interface provides a Centronics parallel data input port to allow
automatic sharing of the Epson printer between the 3270 host and an alternate
host. The parallel interface was designed to be compatible with popular printer
interfaces found on personal
the
parallel interface signals:
PARALLEL INTERFACE SPECIFICATIONS
computers. The following is a description of
Signal
Pin
1
2
3
4
5. 23
6
7
8
9
10
Return
Pin
19
20
21
22
24
25
26
27
28
Signal
STROBE
DATA1
DATA2
DATA3
DATA4
DATA5
DATA6
DATA7
DATA89
ACKNLG
Parallel
Direction
Cable
Pin
1
2INThese signals
3
4
5 IN
6
7
8IN
10
IN
IN
IN
IN
IN
IN
OUT
Description
Strobe pulse to
read data in. Pulse
width must be
more than .5 µsec.
at the interface
represent information in bits 1 to
8 of parallel data
respectively. Each
signal is HIGH
when data is logical
1 and LOW when it
is logical 0.
A LOW pulse with a
minimum width of 4
µsec. A low indi-
cates that data has
been received and
that the printer is
ready to accept
more data.
10
Signal
Pin
Return
PinCable
SignalParallel
Pin
Direction
Description
11
12
13
14
29
30
+
BUSY
PE
SLCT
AUTO
FEED
11
12
13
14
OUT
OUT
OUT
IN
A HIGH signal indicates that the printer cannot receive
data. The signal
goes HIGH in these
cases.
-Data entry, for
each character
-When off line or in
error slate
-When serving the
IBM host and a
byte of parallel data
is received.
HIGH when the
printer is out of
paper.
Pulled up to +5V
through a 3.3K
ohm resistance.
THIS SIGNAL IS
NOT SUPPORTED
BY THE C82314*
INTERFACE. (Delined by many
printers to add a LF
to each CR. The
IBM 3270 protocol
does not allow sup-
port of this signal.
Signal
12
Pin
Return
Pin
Signal
Parallel
Cable
Pin
DescriptionDirection
31
32
33
34NC
35HIGH
INIT
ERROR
GND
SLCTIN36
16
15
25
17
IN
OUT
Defined to reset
and dear the
printer when LOW;
THE RESET AND
CLEAR ARE NOT
SUPPORTED BY
THE C62314*, As
the IBM host
cannot be interrupted by this signal.
An ACKNLG is
generated for handshaking.
This signal goes
LOW when the printer is in an error
state such as out of
paper.
Logic ground
Not used
Pulled up to +5V
through a 3.3K
ohm resistance
NOT SUPPORTED
NOTE:
The mini-parallel connector is a DDK type DHA-36 or equivalent.
The column heading ‘DIRECTION’ refers to the direction of signal flow as
viewed from the C82314* interface.
‘RETURN’ denotes the twisted-pair return, to be connected at signal ground
level. For the interlace wiring, be sure to use twisted-pair cable for each signal
and to complete the connection on the return side. The cable should be
shielded and connected to the chassis of the host computer and printer.
All interface conditions as based on TTL levels. Both the rise and the fall times
of each signal must be less than 0.2 microseconds.
TIMING
Data transfer is carried out by observing the ACKNLG or BUSY signals.
Data
transfer to the printer occurs only after receipt of the ACKNLG signal or when
the BUSY signal is LOW.
DATA IN
-\
/
.5usec .5usec
.5usec
\
/
min. min. min.
STROBE
BUSY
ACKNLG
-I
I
Approx.
7usec min 5usec.
I-
I
Approx.
I
Data must be present a minimum of 0.5 microseconds before and after a minimum 0.5 microsecond STROBE pulse. BUSY goes high before the end of the
STROBE signal and remains high until the end of an ACKNLG pulse of minimum
4 microseconds.
EPSON HP LASERJET EMULATION
Most Epson laser printers have
printer. Check your user’s guide to determine if your printer has this option,
which can be selected from the front panel of the printer. Be sure to save the HP
option selection into the printer's default settings so the HP option is always
loaded at power-on. The HP option provides increased capability including easy
font selection and portrait and landscape printing.
an
option to emulate the Hewlett Packard LaserJet
HP FONT IDENTIFIER CODES
When Command 60 (see Appendix A, command 60) of the interface is used to
select HP LaserJet emulation, font changes can be accomplished by simply
including the font identifier ID code in the text of the document being printed.
In the Appendix C at the back of the manual is a summary listing of the font
identifier codes for the printer’s resident fonts and the Epson font cartridges. The
code consists of the delimiter characters (&% or alternate delimiters)’ plus the
letter "P" or "L" depending on whether the user wants portrait or landscape
printing, and the font ID number.
If a non-Epson supplied HP compatible font cartridge is used, the font ID number
assigned to the font in the Epson cartridges works with the HP compatible
cartridges. Additional font ID numbers are assigned to other fonts available In
many of the HP compatible cartridges and these are listed in an Appendix C at
the back of the manual.
number, it is simple to assign the font command to a custom user string and
access the font by using the user string command.
If the font you want to use is not listed with a font ID
Example:
Multiple font changes can be made in a document as long as all fonts are
specified in the same orientation. A change in orientation (portrait or landscape)
automatically ejects the page. A blank page at the first of a document is often
caused by a change in orientation. A font ID must be absolutely the first data on
the page, i.e. at the first position on the very first line of the page when it specifies
a change in orientation from the previously printed page, or a blank page will be
ejected.
Code &%L086 identifies a landscape Prestige 12 CPI font in the
Epson 5412 font cartridge. if the font cartridge is not installed, then
the printer automatically selects an alternate landscape font and uses
it to print the document.
14
COMPUTER OUTPUT REDUCTION (COR),
HP EMULATION
The landscape printing capability of the HP LaserJet emulation enables the
interface to automatically print traditional data processing reports requiring 66
lines by 132 columns or 198 columns of data on 8.5 x 11.0 inch paper.
When Command 60 selects HP LaserJet protocol and APO is active (Command
61) and COR is selected for the paper source specified (Commands 62-64), the
following format changes are automatically made to data processing reports:
The Page is printed in landscape orientation.
Vertical line height is 70% of that specified.
A 0.5 inch blank area is provided on the top and left edge of the paper.
The selected font is changed, as follows:
10 pitch to 13.3 pitch
12 pitch to 15 pitch
15 pitch to 19 pitch
A combination of control codes in the printer data stream and the settings in the
configuration are used to determine page orientation when processing DSC, DSE,
or LUl (SCS) data streams.
Some data processing applications will not allow the user to insert the data stream
commands required to achieve orientation and format selection, Where the
insertion of the required data stream commands is not possible, the user can
select the orientation and format desired by using the interface’s default
configuration settings. Use of the Write Control Character (WCC) in the DSC/DSE
data streams for orientation and format selection is not recommended.
Using the HP LaserJet emulation, the COR feature enables 132 column X 66 line
and 198 column X 66 line data processing reports to be printed on 8 1/2" X 11"
paper in landscape orientation. This enables a tremendous amount of data to be
stored in ordinary file cabinet drawers and a staple on the edge of the pages will
secure the sequence of the pages.
15
AUTOMATIC PRINT ORIENTATION (APO),
HP EMULATION
When Automatic Print Orientation (APO) is specified active (see Appendix A,
command 61), the coax interface notes the page format parameters of the print
image and calculates the required print dimensions in inches.
calculations are based on the following equations:
The page
Requested
Print Width =
(in inches)
Requested
Print Length =
(in inches)
EXAMPLE:
The printer calculates a 13.2 x 11 .0 inch page size if:
Characters per line = 132
Font =
Lines per page = 66
Lines per inch = 6
Because the calculated paper size is larger than 8.5 x 11.0 inches, the
Paper Tray Orientation selection (see Appendix A, Commands 62-64)
determines the orientation of the printing. Reference the following Page
Orientation Logic Illustration.
In LU3 (DSC/DSE) mode, the values of the parameters used in the calculations
are those specified by the interface’s active configuration selections. In LUI (SCS)
mode, the values used are those specified in the data stream by the SCS controls.
If a value has not been set in the SCS data stream, the interface’s active
configuration is used.
Characters per line (MPP)
---------------------------
Characters per inch (CPI)
Lines per Page (MPL)
------------------
Lines per Inch (LPI)
10 pitch (CPI)
Understand that the interface does not supply automatic orientation based on the
amount of incoming data from the host for each line or page. The values must
be provided in the data stream or by use of the printer’s configuration selections.
The Automatic Print Orientation (APO) feature also utilizes the requested print
width and print length as specified above to determine the print orientation when
the print dimensions are less than the 8.5 x 11 inch paper size, When the width
is greater than the length and APO is active, the document prints in landscape
16
regardless of whether the user specified a portrait font ID. You should be aware
of the significance of the specified form size (as defined by the MPP and MPL)
and select these values in accordance with your desired orientation when APO is
active.
PAGE ORIENTATION LOGIC
The page orientation logic is as follows depending on whether APO in Command
61 is active and the Paper Tray Orientation selections made in Commands 62 to
64. The requested print length and width is important when APO is active as
illustrated below:
START
Page Orientation Logic
APO Active - NO
YES
Print Dimensions
Less than — NO
8.5 x 11.0 inches
YES
Requested
Length
Less Than - NO
Requested
Width?
YES
Print in
Landscape
Computer
output
Reduction
Mode
Print in
Portrait
Print According To Paper
Tray Orientation Selection
( Command 62-64 )
Portrait
Mode
Landscape
Mode
User
Defined
Mode
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