VIISAN S21 CaptureA2

VIISAN S21 CaptureA2 Document Scanner User Manual

Model: S21 CaptureA2

1. Introduction

The VIISAN S21 CaptureA2 is a high-resolution overhead document camera designed for efficient digitization of various materials, including large format documents, books, and 3D objects. Featuring a 27MP image sensor and intelligent scanning software, it offers advanced image processing capabilities and multi-language OCR support.

VIISAN S21 scanner with A2 large format and 27MP high-resolution labels.
VIISAN S21 Document Scanner highlighting A2 large format and 27MP high-resolution.

2. Setup and Connection

2.1 Assemble the Document Camera

  1. Hold the camera arm and align it with the holes in the base.
  2. Insert the camera arm into the base.
  3. Secure the arm to the base using the included screw and screwdriver.

2.2 Setting Up & Connecting to a Computer

  1. Connect the supplied USB cable from the back of the document camera to an available USB port on your computer.
  2. Plug the supplied external [Hand Button] into the USB hub located on the back of the document camera.
  3. Place the black scanning pad directly in front of the document camera, ensuring it is in contact with the scanner base.
  4. Unfold the camera arm to raise the camera head to the desired height (adjustable for A2/A3 scanning).
  5. Before initial use, visit the official VIISAN website to download and install the compatible software:
    • VIISAN OfficeCam for Windows
    • VIISAN DeskCam for macOS
Diagram showing the VIISAN S21 scanner components and connections.
Physical components and connection points of the VIISAN S21 Document Scanner.
Detailed diagram of the scanner's components and dimensions.
Detailed view of the VIISAN S21 scanner with dimensions and labeled parts (Base, Aluminum Housing, Adjustable Height, Top LED, Lens, 90 Degree Foldable Hinge, LED Touch Switch, Anti-theft lock, USB Type-A, USB Type-B).

3. Operating Instructions

3.1 Basic Scanning Procedure

  1. Launch the VIISAN OfficeCam (Windows) or DeskCam (macOS) software on your computer.
  2. Place the document or object you wish to scan face up on the center of the black scanning pad.
  3. Click the [Scan] button within the software interface or use the external Hand Button to initiate the scan.
VIISAN S21 scanner in use, scanning a map, with a laptop displaying the scanned image.
Scanning a large map with the VIISAN S21 and viewing the result on a laptop.

3.2 Intelligent Scanning Software Features

The VIISAN OfficeCam/DeskCam software provides a comprehensive suite of features to enhance your scanning experience:

  • Flattening Curve Technology: Automatically flattens curled pages, removes finger images, purifies the background, and splits dual pages into two separate images.
  • Page Turning Detection: Automatically triggers a scan when a page is turned, ideal for continuous book scanning without dismantling the book.
  • Powerful OCR Recognition: Converts scanned images into searchable PDF and editable Word, Excel, and Text formats. Supports over 130 languages.
  • Barcode Recognition: Recognizes barcodes and QR codes, with the ability to output results to an Excel file format.
  • Visualizer Function: Project your laptop screen to a large display (e.g., TV) using the scanner's camera, useful for presentations.
  • Advanced Image Processing: Includes Automatic Cropping & De-skewing, Punch Hole Removal, Background Purification, Automatic Edge Filling, Automatic Text Orientation, Add Watermark, Color Enhancement, and Both-Side Merge for cards.
Software interface showing book scanning with automatic flattening and page splitting.
VIISAN OfficeCam software interface demonstrating book scanning features.
Scanner demonstrating scanning of large format documents up to A2 size.
The S21 scanner's capability to digitize large format documents, including A2, A3, and A4 sizes.
Animated GIF demonstrating page-turning detection for continuous book scanning.
Demonstration of automatic page-turning detection for efficient book scanning.
Images showing thick book scanning, 3D object recording, and multiple card scanning.
Versatile scanning modes: thick books (up to 30mm), 3D objects, and multiple cards.
Examples of advanced image processing features like cropping, de-skewing, and background purification.
Enhance your scans with automatic cropping, de-skewing, punch hole removal, and other image processing features.
Screenshot of barcode recognition feature in the software, outputting to Excel.
Barcode recognition feature, allowing output to Excel format.
Diagram showing OCR conversion from JPEG to PDF, DOC, XLS, TXT formats.
Powerful OCR text recognition converting scanned images into editable formats.

3.3 LED Lighting Control

The S21 features a built-in high-brightness LED lamp with 3-level touch control. This allows you to adjust the brightness to suit the environment and ensure clear images, even in low-light conditions. Avoid using the LED light under strong ambient light.

Close-up of the scanner's LED light and touch control.
Built-in 3-level LED light touch control for optimal illumination.

4. Maintenance

4.1 Cleaning

  • Ensure the device is disconnected from the power source before cleaning.
  • Use a soft, dry cloth to wipe the exterior of the scanner.
  • For the camera lens, use a specialized lens cleaning cloth and solution to avoid scratches.
  • Keep the scanning pad clean and free of dust or debris to ensure optimal scan quality.

4.2 Storage

  • When not in use, fold the camera arm down to protect the lens and save space.
  • Store the scanner in a cool, dry place away from direct sunlight and extreme temperatures.

5. Troubleshooting

5.1 Software Not Detecting Device

  • Ensure the USB cable is securely connected to both the scanner and the computer.
  • Try connecting to a different USB port on your computer.
  • Restart your computer and the scanning software.
  • Verify that the correct drivers and software version are installed from the official VIISAN website.

5.2 Poor Image Quality

  • Check that the document or object is placed flat on the scanning pad.
  • Ensure adequate lighting. Adjust the built-in LED light or ambient lighting as needed.
  • Clean the camera lens and scanning pad for any smudges or dust.
  • Verify that the camera arm is unfolded and positioned correctly for the document size (A2/A3).
  • Check software settings for resolution and image enhancement options.

5.3 OCR Not Working Correctly

  • Ensure the document is well-lit and clear, without shadows or distortions.
  • Check the language settings in the OCR software to match the language of the document.
  • For best results, use high-contrast documents with clear fonts.

6. Specifications

Feature Specification
Brand Name VIISAN
Model Number S21
Product Type Document Scanner
Sensor 20.1 Megapixel CMOS
Max. Resolution (Software Interpolation) 5888 x 4522 Pixels (27MP)
Optical Resolution 5888x4522
Max. Output Resolution 5504 x 4128 Pixels
Max. Shooting Area A2 (594x420) mm
Color Bit Depth 24 Bit
Lens Focus Fixed
Scanning Speed 150 scans/second (approx. 1 sec. per A2 page)
Video Compression MJPG
Power 5V by USB-Powered
Net Weight Approx. 1kg
Interface Type USB 2.0 Type B x 1 (for PC Connection), USB 2.0 Type-A x 1 (for USB Extension)
Scanning Light Source Natural Light + LED
System Requirements (Windows) Windows 7, Windows 8.1, Windows 10, Windows 11
System Requirements (macOS) macOS 10.15 or later
Processor Requirement Intel i3 processor or higher
RAM Requirement 4GB RAM or more
Storage Requirement Hard drive space for recorded videos
USB Port Requirement USB 2.0 port (USB 3.0 compatible)
Video Streaming Frame Rate (Video mode) 1920 x 1080@30fps
Video Streaming Frame Rate (Software Preview) 2048 x 1536@15fps
OCR Languages Supported 130+
Certification CE
Origin Mainland China

7. User Tips

  • For optimal scan quality, ensure your documents are as flat as possible on the scanning pad.
  • Utilize the OCR function to convert scanned text into editable and searchable documents, saving time on manual data entry.
  • Experiment with the 3-level LED lighting to find the best illumination for different document types and ambient light conditions.
  • Take advantage of the page-turning detection feature for efficient and continuous scanning of books and multi-page documents.
  • Regularly check the VIISAN official website for software updates to ensure you have the latest features and performance improvements.

8. Warranty and Support

For detailed warranty information, technical support, additional user manuals, and video tutorials, please visit the official VIISAN website. Keep your purchase receipt for warranty claims.