Canon LiDE 700F manual Resolution 237 of 308 pages, What is Resolution?

Resolution Page 237 of 308 pages

On-screen Manual > Scanning Guide > Useful Information on Scanning > Resolution

Resolution

What is Resolution?

The data in the image you have scanned is a collection of dots carrying information about brightness and color. The density of these dots is called "resolution", and resolution will determine the amount of detail your image contains. The unit of resolution is dots per inch (dpi). Dpi is the number of dots per square inch (2.54 cm square).

The higher the resolution (value), the more detail in your image; the lower the resolution (value), the less

detail.

Setting the Resolution in MP Navigator EX

In MP Navigator EX, you can specify the resolution with Scanning Resolution in the Scan Settings dialog

box.

Images for Printing

Images to be printed should be scanned at a resolution that corresponds to the resolution of the printer. For example, if you want to print using a 600 dpi black and white printer, you should set the resolution to

600 dpi.

With a color printer, specifying the resolution at half the resolution of the printer should be fine. For example, if you want to print scanned paper/photos using a 600 dpi color printer, you should set the resolution to 300 dpi. However, with a high-resolution printer, printing takes longer than usual if you set the resolution to half the resolution of the printer.

Example of Appropriate Resolution when Printing to Scale

If you print a document at twice the size both vertically and horizontally, the resolution of the document will be reduced by half. If the resolution of the original document is 300 dpi, the resolution of the enlarged document will be 150 dpi. If you print the document with a 600 dpi color printer, the lack of detail in the image may be obvious. In that case, if you scan at the Scanning Resolution of 600 dpi, the resolution will be 300 dpi even if you double the size of document and you can print the document with sufficient quality. Conversely, if you print a document at half scale, it should be sufficient to scan at half the resolution.

When Printing Color Photos at Twice the Size

Document resolution: 300 dpi

Scanning resolution: 600 dpi

Scale: 200%

Print at twice the size

Scanning resolution/actual scanning resolution: 600 dpi

Printing resolution: 300 dpi

Setting the Resolution in ScanGear (Scanner Driver)

In ScanGear (scanner driver), you can specify the resolution with Output Resolution in Output Settings on

the Advanced Mode tab.