The solution to most 'I can't run my antique scanner any more!' Problems is Hamrick Software's VueScan, a fine professional-quality third party driver. But it's not the answer for you: 'VueScan supports more than 1200 different scanners on Windows, 930 scanners on Mac OS X and 580 scanners on Linux. Asus m2npv vm lan driver for mac. These scanners are organized by vendor name. Download Mustek A3F2400N Scanner Driver 1.0 for Mac OS (Printer / Scanner).

1. Open Safari and go to http://www.mustek.com/support.html download page.

2. On the left side of the download page, click the arrow on the Product Name field to open the product list, then select your scanner model, for example A3 1200S. Select either “C9A” or “D21” in the below filed that matches the first 3 digits in the serial number sticker on the scanner.

3. Click the arrow on the Type field, and then select “Utilities” from the list. Select your region from the Download dropdown menu in the Utilities- Image Acquire column to download the driver. When the download prompt pops up, click 'Save' to download the file then install it to your Mac OS X.

If have any problem, please refer the below FAQ :

Unable to download scanner driver or software on website on Mac OS X
Unable to open the *.pkg driver file after download scanner driver on MAC 10.10 ~ MAC 10.13

4. Find the ImageAcquire in 'Applications' folder on your Mac computer. Then, double click on the ImageAcquire to launch it.

ImageAcquire software download
If have any problem, please refer the FAQ 'Unable to be installed after web downloaded Image Acquire software on Mac'.

5. When Image Acquire opens, select the correct scanner from the device field that is connected to your Mac, and then click “Acquire”.

Then, the TWAIN interface will open in the Image Acquire, and is ready for scanning.

Notice :
1. If you select the correct scanner name then click Acquire, the above TWAIN interface not open.
You need to confirm the Scanner PID and Scanner Name again then check you installed the correct driver or not.
Please refer the FAQ 'How to find the Hardware Product ID (PID) on Mac OS X',
it show Scanner PID List and Product Name List.

2. After confirm the First item, the above TWAIN interface still not open.
You could try to uninstall ImageAcquire or move ImageAcquire to trash from 'Applications' folder
then reinstall other version of ImageAcquire.
The latest version of ImageAcquire is v2.1.
Some older scanner need to use ImageAcquire v2.0.1 or v1.0.6 version.