Cut or debind manga using an X-Acto knife or box cutter. Cutting or debinding is a way of separating the pages of the manga so they can be scanned. Try to cut as close to the border as possible.
Open IrfanView on your computer. IrfanView is a graphics viewer, which can be downloaded for free on the IrfanView website. It is the program you will use to scan manga pages.
Click on "File" in IrfanView, then choose "Select Twain Source" to choose your scanner.
Click on "File," then select "Acquire/Batch Scanning," which will lead to a dialog box popping up. Choose single image or multiple images if you are scanning more than one page. Click on "OK," then choose which type of image you will be scanning: color picture for color scans, black and white picture or custom settings. If you choose custom settings, select 600 dpi for color scans. Choose 300 dpi and grayscale mode for black and white scans.
Scan the manga pages, then click "File" and "Save as," and save them in JPEG format.
Open a graphics software program such as Photoshop or Paint Shop Pro and edit the scanned images. The programs will allow you to crop, resize, clean images and further optimize your scans.