NOTE: Choosing the True Color RGB 36-bit setting captures more data than the 24-bit setting. This means that the file sizes listed above will be larger if you scanned images using the True Color 36-bit RGB setting.

Choosing the Best Resolution for Your Scanning Project

To choose the best resolution for scanning, determine what you are going to do with the image once it is scanned. Matching your scanning resolution to the image use will give you the best image for that purpose and will keep the file sizes to the minimum needed.

Table 2. Recommended Resolutions

Image Use

Recommended Resolution

Printing

300

- 600*

Viewing on the Screen

72

 

Viewing on the Web

72

 

OCR, B/W

300

 

Pre-Press

600

- 1200

Enlarging

1200

•Depending on the resolution of your printer.

Using Custom Resolution Settings

You can also specify custom resolution settings that you can use when you scan. The maximum custom resolution setting you can define is 2400 dpi. To define the custom resolution settings:

1.Choose the Custom… option from the Resolution drop down menu. The Custom Resolution window opens.

2.Enter the desired resolution setting (between 50 and 2400 dpi) in the Custom resolution #1 box.

3.Repeat step 2 to define the Custom resolution #2 and Custom resolution #3 settings.

4.Click OK. The settings you defined appear on the Resolution setting drop down menu, under the Custom heading.

Changing the Descreen Feature

The Descreen option helps eliminate the patterns that appear when you scan printed images found in magazines, brochures, catalogues, etc. This is accomplished by changing the number of lines that appear in every inch (lines per inch) of the scanned image.

The Descreen feature is unavailable when you have chosen the B/W Document, FAX, or OCR resolution settings.

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UMAX Technologies Astra 4000 manual Changing the Descreen Feature, Choosing the Best Resolution for Your Scanning Project
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Astra 4000 specifications

UMAX Technologies has made significant strides in the technology landscape with its innovative offering, the Astra 4000. This advanced device stands at the intersection of cutting-edge technology and user-centric design, making it a noteworthy contender in the competitive tech market.

One of the standout features of the Astra 4000 is its powerful processing capabilities. Equipped with a high-performance processor, it ensures that users experience seamless multitasking and swift application launches. With its impressive RAM capacity, users can run multiple applications simultaneously without any lag, enhancing productivity and overall user experience.

The Astra 4000 also boasts a high-resolution display that delivers vivid colors and sharp images, making it perfect for both work and entertainment. Whether it's for graphic design, video editing, or simply streaming high-definition content, the display is optimized to provide exceptional clarity and brightness. This focus on visual excellence is complemented by advanced graphics processing, enabling rich visual experiences in gaming and multimedia applications.

In terms of connectivity, the Astra 4000 is designed for the modern user. It supports a variety of connectivity options, including Wi-Fi 6 and Bluetooth 5.0, providing faster internet speeds and improved connection stability. This extensive range of connectivity choices enables seamless communication with other devices and ensures that users can stay connected wherever they are.

Security is another area where the Astra 4000 shines. It incorporates biometric authentication features such as fingerprint scanning and facial recognition, providing users with enhanced security. This level of protection is increasingly necessary in today's digital landscape, where safeguarding personal information is paramount.

Additionally, UMAX Technologies has placed a strong emphasis on energy efficiency with the Astra 4000. The device is engineered to consume less power, thereby extending battery life without compromising performance. This makes it an excellent choice for users who are often on the go and need a reliable device that can last through long workdays or travel.

Lastly, UMAX Technologies provides robust customer support and regular software updates for the Astra 4000, ensuring that users have access to the latest features and enhancements. With its blend of advanced technology, user-centric features, and a strong focus on security and efficiency, the Astra 4000 is poised to redefine the user experience in its category.
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