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This section provides an overview for document scanners as well as their applications and principles. Also, please take a look at the list of 4 document scanner manufacturers and their company rankings. Here are the top-ranked document scanner companies as of February, 2025: 1.DENSO WAVE INCORPORATED.
Table of Contents
A Document Scanner is a device that converts paper documents into digital data.
There are sheet-feed type readers that automatically feed and read the document, and overhead type readers that place the document on the reader and read it. They can be used in conjunction with PCs and smartphones to manage and share digitized documents.
In addition, an increasing number of types are capable of recognizing textual information as text using OCR (Optical Character Recognition/Reade) technology.
Document Scanners can be used to extract digital data from paper media at high speed. This helps improve the efficiency of digitization and other operations.
Document Scanners are used to convert text and content handwritten or printed on paper into electronic data in the trend from traditional paper work to digital work.
Document Scanner digitization of various types of documents that are exchanged on paper, such as paper invoices, receipts, shipping/receiving slips, and reports, improves business efficiency and reduces storage space.
Document Scanners can digitize catalogs and books distributed in paper form to share information and reduce storage space.
Document Scanners digitize documents by converting light emitted from a light source onto the document surface, collecting the reflected light with a lens, and receiving the light with a CCD (charge-coupled device) or CIS (contact image sensor) sensor and converting it into an electrical signal.
The CCD provides a deep depth of field and can clearly capture images of documents with large unevenness and documents that are far away from the glass surface.
CIS is compact and energy-efficient, but has a shallow depth of field, which means that documents with large bumps and uneven surfaces or those that are far away from the glass surface will not be clear.
Document Scanners can send the scanned image data to a PC or cloud service.
The OCR (Optical Character Recognition) function can also be used to convert the scanned image data into text data. This makes it easier to search and categorize documents.
There are three main types of document scanners: sheet-fed, overhead, and handheld.
Sheet-fed scanners use an automatic paper feeder to automatically feed and scan documents. They are characterized by the ability to scan large volumes of documents, business cards, etc. quickly and efficiently.
An overhead scanner is a type of scanner that reads the document from above where it is placed. This type of scanner can scan thick documents such as books and magazines without dismantling them or having them come into contact with the glass surface. Another feature of this type of scanner is that it can handle documents of A3 size or larger.
A handy scanner is a type of scanner that is held by hand and scans the document as if tracing it. They are compact, portable, and can be used anywhere.
When selecting document scanner, please pay attention to the following five points:
There are three types of document scanners: sheet-fed, overhead, and handheld. Sheet feeds can scan large numbers of documents quickly, but they cannot handle thick documents or documents that require page turning, such as books.
Overheads can handle documents that require page turning, such as books and magazines, and documents larger than A3 size, but they are large and take up a lot of space. Handhelds are compact, portable, and can be used anywhere, but scanning speed and accuracy may be low.
Document Scanner models vary in terms of the size of documents they can scan; if you only need to scan A4 or smaller documents, a small, inexpensive model will do the job.
Resolution is a numerical value that expresses the fineness and sharpness of an image, and is expressed in dpi (dots per inch). The higher the resolution, the better the image quality, but the larger the file size.
A resolution of 600 dpi or higher is recommended for scanning text documents, while a resolution of 1,200 dpi or higher is recommended for scanning colorful documents such as photographs and paintings.
If you need to process a large number of documents, it is important to know how many documents can be scanned per unit of time. Since the reading speed varies depending on conditions such as resolution and color mode, it is important to make comparisons under the same conditions.
Document Scanners come with a variety of features: Wi-Fi enabled for convenient wireless connection to a PC or smartphone; OCR (Optical Character Recognition) for easy search and management by extracting text from an image and converting it to text; and double-sided scanning to scan the document on both sides.
A duplex scanning function saves time by scanning the front and back sides of the document at once. Select the function you need according to your application.
*Including some distributors, etc.
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Canon U.S.A., Inc., established as the New York branch in 1955 and then was formally incorporated in 1965, is a supplier of consumer, business-to-business, and industrial digital imaging solutions based in the United States. The company opened their new headquarters in 2013 and continues to realize growth, oversees operations in North, Central and South America. Located off the Long Island Expressway and near the technology corridor of Route 110, the headquarters features modern amenities and a 52-acre campus.
DENSO WAVE INCORPORATED was established in 1976 in Aichi, Japan provides industrial solutions through its manufacturing technology by developing and producing automatic identification equipment, industrial robots, controllers, and system solutions. The company is known for creating QR codes and cloud services, which are registered trademarks of DENSO WAVE Inc. These codes and services are used for anti-forgery measures and in business cards or catalogs. Their AUTO-ID products include terminals, scanners, RFIDs, and software that enables various operations. These products are supported by customized system solutions such as QR code solutions and IoT solutions (Internet of Things).
Plustek Inc., founded in 1986, and based in Santa Fe Springs, California, USA, is a designer, manufacturer, and marketer of a wide range of document scanners and intelligent process automation technologies to help shape organizations to grow their businesses. The company offers various products such as Flatbed scanners, document scanners, Linux scanners, and more. It also provides software for developers, photo & film utility, data capture, recognition utility applications, and data capture among others. The company has received honors in ‘Outstanding Achievement in Innovation from Buyers Lab and the German Design Award 2020 from Germany Design Council among others.
Epson America, Inc. is a manufacturer and distributor of digital imaging products established in 1975 as a US subsidiary of Japan’s Seiko Epson Corporation. The company produces various digital imaging products for home and business use, including cameras, printers, home theater systems, and scanners, as well as printing accessories like ink and software. It also manufactures wearable devices, point-of-sale systems, and robots for industrial or factory automation, such as 6-axis and SCARA models. Epson America is headquartered in Los Alamitos, California, with regional offices, authorized resellers and service centers across North America including in Chicago, Atlanta, and Toronto.
Ranking as of February 2025
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | DENSO WAVE INCORPORATED |
66.7%
|
| 2 | Plustek Inc. |
33.3%
|
Derivation Method
The ranking is calculated based on the click share within the document scanner page as of February 2025. Click share is defined as the total number of clicks for all companies during the period divided by the number of clicks for each company.Number of Employees
Newly Established Company
Company with a History
*Including some distributors, etc.
*Including some distributors, etc.
| Country | Number of Companies | Share (%) |
|---|---|---|
|
Japan
|
2 | 66.7% |
|
United States of America
|
1 | 33.3% |
35 products found
35 products
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Seiko Epson Corporation
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Seiko Epson Corporation
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