EPSON AMERICA, INC.
Product Support Bulletin
Subject: OS/2 Warp 3.0 and Epson TWAIN
Date: 1/26/95
Page(s): 1 of 4
This bulletin describes the necessary steps to implement the Epson TWAIN driver
in a Windows 3.1 session under OS/2 Warp 3.0. This procedure will cover both
current versions of Epson TWAIN (1.03 and lower as well as 2.02 and higher) using
bidirectional parallel and SCSI interfaces.
NOTE:
TWAIN v1.03 and lower will not work with the Epson ES-1200C scanner. You must
use TWAIN 2.02 or higher. If you are using the ES-1200C with a program that has
Epson scanner support, you may need install the EPSN.SYS device driver for that
Windows session. To do this, follow steps 6 through 16 below. You will need to
obtain EPSNSY.EXE from the Epson BBS. This file has the EPSN.SYS driver
included in it. Simply copy the driver to the root directory of your boot drive.
PSB No: P-0103A
Originator: CEB
Bidirectional Parallel Interface
Epson TWAIN v2.xx
There is no special procedure required to setup this version of the driver to run in a
Windows session under OS/2 Warp 3.0. Simply launch Windows and install the
driver.
Epson TWAIN v1.0x
Follow the steps below to enable Epson TWAIN v1.0x:
1.
From the OS/2 desktop, double click on the OS/2 SYSTEM folder
2.
Double click on the COMMAND PROMPTS folder
3.
Double click on the Win-OS12 icon.
4.
Once Windows is loaded, follow the TWAIN installation procedure. When the
installation program asks if you wish to make changes to the CONFIG.SYS or
the CONFIG.ADD, select CONFIG.ADD.
5.
Once the installation has completed, exit Windows.
6.
If the COMMAND PROMPTS folder is not open, follow steps 1 and 2.
7.
Move the mouse to the WIN-OS/2 FULL SCREEN icon. Click on the right
mouse button.
PSB No: P-0103A
Page: 2 of 4
8.
Select SETTINGS from the pop-up menu.
Once the SETTINGS notebook has opened, click on SESSION.
9.
10.
Click on the WIN-OS2 SETTINGS.
11.
Click on OTHER DOS SETTINGS.
12.
Click on OK.
13.
Highlight DOS-DEVICE.
14.
In the window to the right, add the EPSN.SYS driver. X represents the
appropriate parallel port.
X = 0 (Parallel port address 3BCh)
X = 1 (Parallel port address 378h)
X = 2 (Parallel port address 278h); This is the default setting Epson TWAIN
uses.
The device line would be entered in the following manner. Substitute 0, 1 or 2
based on your configuration.
C:\EPSN.SYS x /i79
15.
Click on SAVE.
16.
Close the SETTINGS notebook.
The next time a Win-OS/:! session is started, you will see the EPSON device driver
load. If you do not, repeat the above steps. If you have migrated a Windows
application to the OS/2 desktop, apply the above steps to that icon instead of the
Win-OS/2 icon. To verify that the configuration is correct, configure the DOS FULL
SCREEN icon using the same methods outlined in steps 6 through 16. Once you
have completed those steps, start a DOS FULL SCREEN session and run the
SCANTEST utility from the \WlNDOWS\TWAIN directory. If SCANTEST runs
successfully, chances are that the Windows session will run properly.
SCSI Interface
In order for either of the Epson TWAIN drivers to function in a Windows session
under OS/2, you must install support for your ASPI compliant SCSI card under
OS/2 first. For installation instructions, refer to your OS/2 manual.
Once you have installed support for your ASPI compliant card under OS/2, you
need to manually check the CONFIG.SYS file for four key files. You should have
the following lines in the OS/2 CONFIG.SYS. If these lines do not exist, add them.
The AHAxxxx.ADD should have been inserted when you installed the SCSI support
for OS/2.
PSB No: P-0103A
Page: 3 of 4
BASEDEV=OS2ASPI.DMD
BASEDEV=OS2SCSI.DMD
BASEDEV=AHAxxxx.ADD /V
DEVlCE=C:\OS2\MDOS\VASPl.SYS
NOTE:
This document assumes that you are using an Adaptec card. The AHA 1510 and
AHA1540C were tested when creating this document.
Once you have verified that the above lines are in the CONFIG.SYS, shut down
OS/2 and reboot.
NOTE:
If the SCSI card does not find any devices on the SCSI chain, the AHAxxxx.ADD
driver will not load thus causing VASPI.SYS not to load. If this occurs, double
check your card’s configuration and the SCSI cabling.
Epson TWAIN v1.0x
Follow the steps below to enable Epson TWAIN v1.0x:
1.
From the OS/2 desktop, double click on the OS/2 SYSTEM folder
2.
Double click on the COMMAND PROMPTS folder
3.
Double click on the Win-OS/2 icon.
4.
Once Windows is loaded, follow the TWAIN installation procedure. When the
installation program asks if you wish to make changes to the CONFIG.SYS or
the CONFlG.ADD, select CONFIG.ADD.
5.
Once the installation has completed, exit Windows.
6.
If the COMMAND PROMPTS folder is not open, follow steps 1 and 2.
7.
Move the mouse to the WIN-OS/:! FULL SCREEN icon. Click on the right
mouse button.
8.
Select SETTINGS from the pop-up menu.
9.
Once the SETTINGS notebook has opened, click on SESSION.
10.
Click on the WIN-OS2 SETTINGS.
11.
Click on OTHER DOS SETTINGS.
12.
Click on OK.
13.
Highlight DOS-DEVICE.
14.
In the window to the right, add the EPSN.SYS driver. X represents the
appropriate SCSI ID of the scanner.
The device line would be entered in the following manner.
C:\EPSN.SYS 3 /Sx /i79
PSB No: P-0103A
Page: 4 of 4
15. Click on SAVE.
16. Close the SETTINGS notebook.
The next time a Win-OS/2 session is started, you will see the EPSON device driver
load. If you do not, repeat the above steps. If you have migrated a Windows
application to the OS/2 desktop, apply the above steps to that icon instead of the
Win-OS/2 icon. To verify that the configuration is correct, configure the DOS FULL
SCREEN icon using the same methods outlined in steps 6 through 16. Once you
have completed those steps, start a DOS FULL SCREEN session and run the
SCANTEST utility from the \WlNDOWS\TWAIN directory. If SCANTEST runs
successfully, chances are that the Windows session will run properly.
Epson TWAIN v2.xx
There is no special procedure required to setup this version of the driver to run in a
Windows session under OS/2 Warp. Simply launch Windows and install the driver.
Follow the procedures outlined in the user’s manual.
If the driver does not install
properly, verify that the device drivers mentioned earlier in this section are being
executed.
Product Support Bulletin
Subject: DOS Device Driver and Interface Connection Diagnostic
for the Epson ES-300C Scanner
Date: 4/3/92
Page(s): 1 of 1
This bulletin was made for the purpose of announcing the availability of a DOS
device driver and interface connection diagnostic for the Epson ES-300C Scanner.
The ES-300C DOS Device Driver was developed for the purpose of allowing third
party scanner application programs to send I/O routines to the device driver instead
of writing to a specific hardware interface. The DOS Device Driver supports the
Epson Bi-Directional Parallel Interface, the IBM PS/2 Internal Parallel Interface, and
Adaptec SCSI interfaces. For information regarding how to obtain this driver, refer
to the distribution information below. If you require additional specifications on the
DOS Device Driver call the Epson Imaging Product Support Department.
The ES-300C Scanner Interface Connection Diagnostic works in conjunction with
the DOS device driver to allow quick and easy verification of the interface
connection between the scanner and host computer. The diagnostic works from
DOS, and does not require Microsoft Windows. Once the diagnostic is initiated, the
scanner will complete a page scan in less than 60 seconds on most computers.
PSB No: P-0086
Originator: RSS
DISTRIBUTION
The Epson ES-300C DOS Device Driver and Scanner Interface Connection
Diagnostic software are available from 4 sources:
A diskette containing all the files are included in each ES-300C DOS interface
1)
kit. The Epson Product Code for the kit is ES300DOS-A.
2)
The files are available from the Epson BBS. The self-extracting file name is
ES300DD.EXE. The Epson BBS telephone number is (310) 782-4531.
The CompuServe Bulletin Board has the files located in the Epson Forum.
3)
After logging into CompuServe, type ‘GO EPSON” at the prompt to access the
Epson Forum.
Any Premier or Standard Epson Customer Care Center can order the diskette
4)
from our Parts Order Services Department. The diskette part number is
ES3DISK.
EPSON AMERICA, INC.
Product Support Bulletin
Subject: Image Editing Terms
EPSON
Date: 6/5/91
Page(s): 1 of 3
The following terms’ are used to describe image editing and grayscale in
connection with scanners, monitors and printers.
Additive
Primary Colors:
Aliasing:
Antialiasing :
Brightness:
Continuous
Tone:
The colors produced by mixing colored light. The primary
additive colors are red, green and blue. The absence of color
produces black (0%); maximum intensity produces white (100%).
This principle is used in color monitors (RGB). By using 24 bits
per pixel it is possible to represent more than 16 million colors.
The jagged diagonal lines that appear in low resolution mode.
Usually noticeable on characters like ‘A” and "W".
The removal of the aliasing or step-like diagonal lines.
The balance of light and dark shades.
The transition from light to dark or dark to light in a smooth
uninterrupted progression. Laser and dot matrix printers do not
support continuous tones.
PSB No: P-0078
Originator: RS
Contrast:
Cropping:
Dithering:
DPI:
‘Some terms taken from PC Publishing, Jan. 1990.
The range between the darkest and lightest shades of an image.
As contrast increases, the number of gray shades between black
and white decreases.
An operation that allows portions of an image to be selected.
Usually pertains to scanning technology.
A method of shading that uses black dots of varying density to
represent darker areas. This technology is used in devices that
only support black and white outputs.
Abbreviation for dot per inch. The standard measurement of
resolution for all output devices. DPI describes the number of
pixels in an image.
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