At the very bottom of the scan program window, between the Preview and Scan buttons, there is a Configuration button that gives you access to all the basic settings. As the following screenshot shows, this window is divided in four sections:
The Epson Perfection 4490 is equipped with a hardware dust removal technology called Digital ICE. You can use it when digitizing transparent originals (the corresponding options become available in the driver window as soon as you select the appropriate type of the original).
Digital ICE has two modes: Quality and Speed. As you can guess, the former mode is for getting a better-quality result while the latter is faster (see the Tests section). By the way, previous scanner models that supported Digital ICE did give you the choice between Speed and Quality. The Perfection 4490 also supports Dust Removal technology which is a software alternative to Digital ICE.
Unfortunately, neither technology works with reflective originals – the appropriate menu options become disabled.
Like in every other model of the series, Color Restoration technology can be turned on in the Perfection 4490. It restores natural colors to scans of old photographs.
In the next section we’ll see how well the scanner performs in practical tests.
Testbed and Methods
I tested the scanner using our traditional methodology for an in-depth examination of all the operating properties of the device like scanning speed, noise tolerance, resolution, etc. The configuration of the testbed remains the same, so you can compare the results with those we got in our earlier reviews.
Configuration of the testbed:
- Intel Pentium 4 3.00GHz CPU
- 1GB DDR SDRAM
- Intel Bonanza D875PBZ mainboard
- ATI RADEON 7000 graphics card
- IBM Deskstar DTLA-307015 HDD
- Samsung SyncMaster 757 NF monitor
- Microsoft Windows XP Professional SP2
First I’ll check the speed characteristics of the Epson Perfection 4490.