The catch
Epson ES-400 II
It lacks built-in wireless and can't scan to a USB memory drive without a computer.
Side by side
Epson ES-400 II vs ES-580W: 580W takes bigger stacks, with an equal rated scan speed
Quick verdict
The ES-580W is the pick for 51- to 100-sheet packets, wireless access or direct USB memory saving. The ES-400 II is enough for shorter batches at one computer, since both share the same published 35 ppm scan rate.
Before you buy
Why, and what it costs you
One fewer reload for an eighty-sheet packet
80 ordinary sheets fit the 100-sheet feeder of the ES-580W, whereas the 50-sheet feeder of the ES-400 II needs two loads. That helps when you want to start a folder and then go back to something else.
Where this comes from
The calculation presumes suitable, uniform paper and leaves out special media fed by hand.
The catch
Epson ES-580W
The newer ES-590W is rated at 45 ppm, compared with 35 ppm here.
Epson ES-400 II
- Why pick it
- All files go to one computer
- Your batches mostly stay within 50 sheets
- The catch
- It lacks built-in wireless and can't scan to a USB memory drive without a computer.
Epson ES-580W
- Why pick it
- Folders of more than 50 sheets come up often
- A touchscreen or direct USB memory destination is on your wish list
- The catch
- The newer ES-590W is rated at 45 ppm, compared with 35 ppm here.
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What this page compares
A 50-sheet USB scanner meets a 100-sheet touchscreen model here. Speed matters less than large packets and computer-free USB saving.
The ES-580W is the pick for 51- to 100-sheet packets, wireless access or direct USB memory saving. The ES-400 II is enough for shorter batches at one computer, since both share the same published 35 ppm scan rate.
Which one fits
Pick the situations that sound like you
Twenty sheets scanned at one desktop computer
The job fits both, and their rated scan speed is the same.
- Epson ES-400 II
- Better fit
- Epson ES-580W
- Good
An eighty-sheet folder while you multitask
One feeder reload is saved with the ES-580W.
- Epson ES-400 II
- Caution
- Epson ES-580W
- Better fit
Scanning right away while someone else is on the laptop
The computer is not needed to use a supported USB memory destination.
- Epson ES-400 II
- Caution
- Epson ES-580W
- Better fit
Book pages still attached to the binding
No flatbed on either.
- Epson ES-400 II
- Not suitable
- Epson ES-580W
- Not suitable
In practice
Differences you will notice
One fewer reload for an eighty-sheet packet
80 ordinary sheets fit the 100-sheet feeder of the ES-580W, whereas the 50-sheet feeder of the ES-400 II needs two loads. That helps when you want to start a folder and then go back to something else.
How we worked this out
The calculation presumes suitable, uniform paper and leaves out special media fed by hand.
Spending more won't shorten the rated feed time
Each is rated at 35 ppm and 70 ipm for Letter scans at 300 dpi, and a short 20-sheet packet fits either feeder. For that routine, what justifies the price of the ES-580W is destinations and sharing and not faster paper movement.
How we worked this out
How long a finished job takes depends on settings, host software and storage. Nothing here claims a matched hands-on speed test.
A USB stick means no waiting for the household computer
Without a computer, the ES-580W can save straight to a supported memory drive. That helps when the shared laptop is in use, as long as the drive and format meet Epson’s requirements. The ES-400 II usually needs its connected host to receive the files.
How we worked this out
Capturing directly to USB is a different thing from uploading to the cloud. Cloud workflows can still call for software, network access and an account.
Option A
Epson, ES-400 II
ES-400 II
A 50-sheet feeder turns each week's pile of forms into files on one computer.
- Best for
- All files go to one computer
Facts we checked
- Feeder holds 50 sheets
- Connection: USB link to a computer
- Controls: Buttons
- USB memory destination: Absent
Option B
Epson, ES-580W
ES-580W
Scan a 100-sheet batch onto a USB memory drive and skip waiting on the household computer.
- Best for
- Folders of more than 50 sheets come up often
Facts we checked
- Feeder holds 100 sheets
- Connection: Wi-Fi as well as USB
- Controls: On a 4.3-inch touchscreen
- USB memory destination: Offered
Spec by spec
Where they really differ
| Spec | Epson ES-400 II | Epson ES-580W | In practice |
|---|---|---|---|
| Feeder | 50 sheets | 100 sheets | The ES-580W gets past an important packet-size threshold. |
| Connection | USB computer connection | USB and Wi-Fi | You can place the larger model away from the receiving computer. |
| Controls | Buttons | 4.3-inch touchscreen | Destinations can be chosen on the device through the screen. |
| USB memory destination | No | Yes | Scanning can take place ahead of a computer becoming available. |
| 300 dpi scan rating | 35 ppm and 70 ipm | 35 ppm and 70 ipm | What the upgrade offers is capacity and workflow and not rated feed speed. |
Trade-offs
What each pick costs you
With Epson ES-400 II
- With the paper trays out, it takes up more room than when stored.
With Epson ES-580W
- Saving to the cloud comes with account and software requirements, unlike saving directly to USB.
Change of plan
When the answer changes
Your usual packets run from 51 to 100 sheets
Go with Epson ES-580W. A reload is taken out directly by the larger feeder.
The whole job consists of short batches over USB
Go with Epson ES-400 II. The rated feed speed on the smaller model is the same.
Originals that cannot be taken out of a book
Neither model fits. Reach for a flatbed or overhead scanner.
Decision guide
How to decide
For 51- to 100-sheet packets, wireless access or direct USB memory saving, pick the ES-580W. For shorter batches at one computer, pick the ES-400 II, because both share the same published 35 ppm scan rate.
One fewer reload for an eighty-sheet packet
The ES-580W's 100-sheet feeder takes 80 ordinary sheets in a single load, whereas the ES-400 II's 50-sheet feeder needs two loads. That helps when you want to start a folder and then go back to another task. The calculation assumes suitable uniform paper and leaves out hand-fed special media.
Spending more won't shorten the rated feed time
Letter scans at 300 dpi are rated at 35 ppm and 70 ipm on both. A short 20-sheet packet fits either feeder. For that routine, the ES-580W justifies its price through destinations and sharing rather than faster paper movement. Finished job time varies with settings, host software and storage. No matched hands-on speed test is claimed.
A USB stick means no waiting for the household computer
Without a computer, the ES-580W can save straight to a supported memory drive. That comes in handy when the shared laptop is occupied, as long as the drive and its format meet Epson's requirements. The ES-400 II normally depends on its connected host to receive the files. Direct USB capture is a separate thing from cloud upload, and cloud workflows may still require software, network access and an account.
What this page can’t tell you
- Document preparation, OCR and saving time are left out of manufacturer feed ratings.
- Before you buy, confirm the supported media, the scan mode, your current operating system and the destination.
By the numbers
What the data shows
What we found across the document scanners we compare, plus the checked facts behind each finding.
Show the facts and the math
| Product | Needs it meets | Facts we checked | Sources |
|---|---|---|---|
| Epson ES-400 II |
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| |
| Epson ES-580W |
|
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Ready to buy
See today’s price and what owners say
Open either model on Amazon for the current price, customer reviews and delivery options.
Epson ES-400 II
All files go to one computer
See price & reviews on AmazonEpson ES-580W
Folders of more than 50 sheets come up often
See price & reviews on AmazonEach link opens in a new tab.
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