VIISAN 3120 A3 Flatbed Scanner, 1200 DPI, CIS Sensor, Scan 11.7" x 16.7" in 8 sec, Frameless, Auto-Scan, Document & Photo & Book Scanner, Design for Library, School and Soho. Supports Windows & Mac

This scanner is quite the gamechanger (if I may use the hackneyed phrase)! The illustrations I draw are generally 11x14", on 14x17" paper; to scan them on an ordinary 9x11" scanner requires four passes that must then be stitched together in Photoshop or GIMP. The results are less than satisfactory, with ghostly "tiling" where the brightness levels don't match. The VIISAN scanner reduces this to a single scan! The cover art is often done a bit larger, requiring multiple passes. However, the brightness level issues are far less noticeable when using this scanner. (I recommend, for stitching multiple scans together into a single image, scanning a larger area than required and cropping the edges to remove light leakage. Also, GIMP does a better job than Photoshop's Photomerge.)

My son was looking for larger scanners to scan large books and projects. This one is a great value for the money and works well and is very easy to use. Durable, with a quick scanning speed. The image quality is great and is compatible with his Dell desktop computer and laptop.

Bought this new in May 2022 because it advertised being able to scan photos with exact color matching etc... Purchased this to scan my art so I could make copies digitally. However, every scan looked washed out and dull, not vibrant in any way. I tried every configuration offered within it's software and no results changed. Reviews were very positive so I figured I just didn't know what I was doing. I contacted their "customer service" with image attachments to ask help in how to resolve my issues. They kept reply with "return to default settings", which was what I had sent them in the attached files. Never got any help further than that. I put it away for a long time and decided to try a new computer and give it another go 2 years later. Same results. What had changed was the customer reviews. Suddenly, SEVERAL negative reviews matched my issue without any satisfaction. After having an expert look into my scanner, it seems an overseas maker is putting out dysfunctional versions at an alarming rate and possibly uploading fake positive reviews to attract buyers. At this price, I had hoped perhaps my particular model was a bad one and considered buying a replacement. But after having a professional look into it, it seems this is not a safe purchase to gamble with. I've chosen to donate this hunk of junk.

I agonised over whether I needed to own and store an A3 scanner and whether it would be good enough quality at this price. I've now scanned many documents at 600 and 1200 dpi and am quite happy with the results. I use Linux Simple scan most and it just works.

The installation without CD (i dont have CD drive on laptop) was simple. The scanning at the highest DPI setting works really well. The image size is massive and detailed. Im glad I finally found a scanner for my artwork that was too big to scan with the smaller Canon scanner I have. edit: updating my review. As another reviewer stated, the quality of color scans is noticeably washed out. What a drag.

I recently got it. I tested out just to see it works. I am impressed at all the features it has. I am an artist and I needed a scanner that folds open at the short end not the horizontal sides. This will be easier to scan sections of large artwork I do to peace back together in Photoshop. I read the instructions and it is a feather where it says it can scan sections together. If this is true I won't have to open up Photoshop to piece together scanned sections of large art. This scanner is about same width as typing paper but longer then 11" typing paper. So it will easil scan legal paper. I am very impressed with all the features this scanner has. It is amazing. I hope they all work.

This product was easy to set up, for a limited tech savvy person, like myself. Downloaded the software from the Viisan website, since they send a disk and my computer doesn't have away to use disks. I was scanning 12x12 pages the same day. I've scanned over 1,000 pages. The software does accationally crash, I was still able to use it like a workhorse. Quality is good with the 1200 dpi.

It's hard to find an affordable scanner that can scan something larger than 8.5 x 11", so I was glad to find this. However, after just a few scans, mine started adding a 70px wide black vertical stripe down every scan. To their credit, they sent me a replacement unit, which hasn't been adding the vertical stripes, but its scans are blurry. An image looks no sharper scanned at 1200dpi than it looks at 300dpi. The blurry parts just have more pixels in them. The colors are washed out and wrong. I realized my iPhone makes a much better image and gave up on this scanner.

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