This file contains important information for how to change the scanner
configuration setting.
INTRODUCTION
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During the installation of Mustek TWAIN Data Source, a device line that specifies the scanner driver and the used configuration (i.e., IRQ, DMA and I/O address settings) will be automatically updated in the CONFIG.SYS file.
However, there are instances when you may need to change the IRQ, DMA or I/O address setting to avoid a hardware conflict.
HOW TO CHANGE THE CONFIGURATION SETTING
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1. TOOLS FOR EDITING THE SCANNER DEVICE LINE
To edit the CONFIG.SYS file, you will need a text editor. If you have
DOS 5.0, you should use EDIT.EXE. If you have a DOS version below 5.0,
you should use EDLIN.COM. Under Windows, you could also use the Windows
Notepad. Please refer to your DOS (or Windows) manual for steps on how
to use these text editors.
2. THE SCANNER DEVICE LINE
The scanner device line should include the following items. These are:
* Device driver
* DMA setting (only included when using 1904 interface card )
* IRQ setting
* Scanner type setting
* I/O address setting
In the CONFIG.SYS file, the correct syntax for the scanner
device line is as follows:
DEVICE=[drive:\][path-directory\]driver-name Dn In An Sn
where:
[drive:\][path-directory\] is the drive and subdirectory
where the scanner driver is located
driver-name is the name of the scanner driver
(e.g., M1904.SYS)
Dn is the DMA channel
(e.g. D3 for DMA3)
In is the IRQ setting
(e.g., I7 for IRQ7)
An is the I/O address
(e.g., A2AB for I/O address 2AB, A378 for I/O address LPT1)
Sn is the scanner type
(e.g., S9 for CG-8000 scanner, S5 for GS-800 scanner)
3. SETTING THE SCANNER DEVICE LINE PARAMETERS
When you edit the scanner device line, there are certain
precautions that you should take note of especially when
choosing the IRQ and I/O address settings for the
PrinScan adapter.
Avoid hardware and software conflicts that can adversely
affect the performance of the scanner by selecting only the
available and unused DMA, IRQ, and I/O address settings.
Use the following options for setting the scanner device line
parameters.
3.1 The Mustek scanner device driver [driver-name]
The Mustek scanner device driver is found in the WINDOWS\TWAIN\MHSC2 subdirectory.
For the scanner to work, it is important that the scanner driver is loaded
properly when you boot your computer. In the CONFIG.SYS file, make
sure the driver in the scanner device line has the correct path.
Driver name Interface type
---------------- ---------------------------
M1904.SYS GI1904(A) / IF-940
M1906.SYS GI1906
PSCAN4.SYS PrinScan printer port adapter
3.2 The DMA channel [Dn]
This parameter is only available for GI1904 and IF-940 Scanner
Interface Card. When you assign the DMA setting for the scanner
interface card, make sure it is not used by any other device
connected to your computer. The available DMA channels for the
interface card are:
D1 for DMA 1
D3 for DMA 3 (recommended setting)
The devices that might have DMA settings are sound cards,