Table of Contents
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Product Information
Functions
Fax
Send a fax
Receive a fax
AirPrint (Faxout)
Security Protocol
SSL/TLS
SMTPS (STARTTLS, SSL/TLS)
SNMPv3
Supported Third Party Services
AirPrint
Memory Device Specifications
Devices
*1
Hard Disk Drive
USB Flash Drive
*2
Multi-card reader
*1:
We do not recommend using external USB devices that are powered by USB. Use only external USB devices with
independent AC power sources.
*2:
Only insert one memory card into the multi-card reader. Multi-card readers with more than two memory cards inserted are
not supported.
You cannot use the following devices:
❏ A device that requires a dedicated driver
❏ A device with security settings (password, encryption, and so on)
❏ A device with a built-in USB hub
Epson cannot guarantee all operations of externally connected devices.
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Product Specifications
IPv4
IPv4
IPv4, IPv6
HTTPS Server/Client, IPPS
Print
Scan
Fax
Maximum Capacities
2 TB (formatted in FAT, FAT32, or exFAT.)
2 TB (formatted in FAT, FAT32, or exFAT)
Memory Device Specifications
Supported
✓
✓
✓
iOS 5 or later/Mac OS X v10.7.x or later
OS X Mavericks or later
OS X Mountain Lion or later
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Remarks
-
-
OS X Mountain
Lion or later
- Quick Links:
- Paper Size and Type Settings
Hide quick links:
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Table of Contents
Need help?
Do you have a question about the WF-7840 Series and is the answer not in the manual?
Questions and answers
How do I print photos and screen shots from my phone onto regular 8.5x11 paper in tray 1 or 2, (not the photo tray)?
Mismatching trays and paper size
To resolve mismatching trays and paper size issues with the Epson WF-7840 Series, follow these steps:
1. Check Paper Size Settings – Ensure the selected paper size in the printer settings matches the actual paper loaded in the tray.
2. Verify Paper Loading – Load the paper correctly in the cassette or rear paper feed slot, making sure it is aligned properly.
3. Select the Correct Paper Source – Adjust the paper source settings in the printer’s control panel to match the tray where the paper is loaded.
4. Use Supported Paper Sizes – Confirm that the paper size is within the supported range (up to 11×17 inches in the cassette and up to A3+ in the rear paper feed slot).
5. Avoid Automatic 2-Sided Printing on Certain Papers – If using loose-leaf or hole-punched paper, disable automatic double-sided printing.
Following these steps should resolve the issue.
This answer is automatically generated
print an envelope