Overview

This article explains how you can test the functionality of a TWAIN driver without having to install a Lexmark-supplied software package (such as Presto PageMaker) or another third-party software application.
NOTE: The TWACKER utility is from the TWAIN WORKING GROUP. Lexmark does not provide support for this program and the information below is provided as a courtesy only.

Using TWACKER to test the functionality of a TWAIN driver

Step Action
1 Download the "twack.zip" application package from http://www.twain.org/devfiles/twack.zip.
2 Unzip twack.zip, locate the TWACKER.exe file, and run the executable.
3
Once the utility is open, click File, Select Source. The generated list will contain all installed TWAIN drivers.
If the driver you wish to test is not listed, it is not installed correctly. Reinstall the driver file to resolve this issue.
4 From the list, select the driver you wish to test.
5
For testing purposes you will have two options:

Scan to File - Click File, "File".
Scan to screen - Click File, "Native". (NOTE: The scan to screen cannot be saved.)
6 Click File and ensure Show UI is checked.
7 Click File, Setup to change the various settings (resolution, scan mode, etc).
8 Click File, Acquire to initiate the scan. If the driver is working correctly, the scan will proceed normally.

Additional information

Refer to the printer's service manual for additional troubleshooting steps and for removal/installation procedures.

Still Need Help?

If you require additional assistance, please contact Lexmark Technical Support. NOTE: When calling for support, you will need the machine/model type and serial number (SN) of your printer.
Please call from near the computer and printer, in case the technician on the phone asks you to perform a task on one or both of these devices.

3100	3200	Lexmark 4600 MFP
Lexmark X215 MFP	Lexmark X340	Lexmark X342n	Lexmark X422 MFP
Lexmark X500 Series	Lexmark X520	Lexmark X522	Lexmark X522s
Lexmark X560n	Lexmark X620e	Lexmark X630	Lexmark X632
Lexmark X634e	Lexmark X642e	Lexmark X644e	Lexmark X646e
Lexmark X720	Lexmark X750e	Lexmark X752e MFP	Lexmark X762e MFP
Lexmark X772e MFP	Lexmark X820e	Lexmark X830e MFP	Lexmark X832e MFP
Lexmark X850e MFP	Lexmark X912e MFP	Lexmark X940e	Lexmark X945e
OptraImage 725	OptraImage T610sx	OptraImage T612s	OptraImage T614dx
OptraImage W810s	OptraImage W810z

How to Use Twacker to Test the Functionality of a TWAIN Driver

Problem

Environment

Solution

How to Use Twacker to Test the Functionality of a TWAIN Driver	Document ID:SO4464

	Properties

Step	Action
1	Download the "twack.zip" application package from http://www.twain.org/devfiles/twack.zip.
2	Unzip twack.zip, locate the TWACKER.exe file, and run the executable.
3	Once the utility is open, click File, Select Source. The generated list will contain all installed TWAIN drivers. If the driver you wish to test is not listed, it is not installed correctly. Reinstall the driver file to resolve this issue.
4	From the list, select the driver you wish to test.
5	For testing purposes you will have two options: Scan to File - Click File, "File". Scan to screen - Click File, "Native". (NOTE: The scan to screen cannot be saved.)
6	Click File and ensure Show UI is checked.
7	Click File, Setup to change the various settings (resolution, scan mode, etc).
8	Click File, Acquire to initiate the scan. If the driver is working correctly, the scan will proceed normally.