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  1. Home
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Brother MFC-J6945DW vs Epson WorkForce Pro WF-7840

Which Printer Is Better?

    Top
    Main Differences
    Design
      Build QualityDimensionsExpected MaintenanceDisplay ScreenCartridgeScanner FeaturesScan QualityPrinting SizeIn The BoxBattery
    Document
      Black & White DocumentsColor DocumentsCost-Per-PrintPrinting SpeedDocument Printing Sizes
    Photo
      Color GamutColor AccuracySmall DetailsPhoto Printing SizesPhoto Printing Quality
    Mobile App And Connectivity
      ConnectivityMobile AppOS Compatibility
    Comments

Products

Brother MFC-J6945DW
Epson WorkForce Pro WF-7840

Tested using Methodology v1.2

Updated Oct 07, 2025 07:30 PM

SEE PRICE
Amazon.com

Tested using Methodology v1.1

Updated Oct 23, 2024 12:58 PM

SEE PRICE
Amazon.com
Brother MFC-J6945DW Picture
Epson WorkForce Pro WF-7840 Picture
TypeAll-In-One
TechnologyInkjet
SuperTank
No
Wireless
Yes
ColorYes
TypeAll in One
TechnologyInkjet
SuperTank
No
Wireless
Yes
ColorYes
  1. Recommended in 1 article:
  2. 11x17

Our Verdict

Brother MFC-J6945DW

Epson WorkForce Pro WF-7840

The Brother MFC-J6945DW offers better performance than the Epson WorkForce Pro WF-7840. Both can scan and print 11" x 17" tabloid-format sheets. However, the Brother is better for small or home offices as it offers significantly higher page yields at a much cheaper cost-per-print and a faster color document printing speed. On the other hand, if you primarily print black documents, then the Epson is a better choice as it prints black text documents much faster.

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Variants

  • MFC-J6945DW (White/Grey)
  • Epson WorkForce Pro WF-7840 (Black)
  • Epson WorkForce Pro WF-7820 (Black)

Review

See Brother MFC-J6945DW Review
See Epson WorkForce Pro WF-7840 Review
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0 

Check Price

White/Grey
MFC-J6945DW
SEE PRICE
Amazon.com
Black
Epson WorkForce Pro WF-7840
SEE PRICE
Amazon.com
White/Grey
MFC-J6945DW
SEE PRICE
Walmart.com
Black
Epson WorkForce Pro WF-7820
SEE PRICE
BestBuy.com
White/Grey
MFC-J6945DW
SEARCH
B&H
 
White/Grey
MFC-J6945DW
SEARCH
BestBuy.com
 
White/Grey
MFC-J6945DW
SEARCH
Brother
 
Read more

Main Differences for
Family

Threshold 

0.10

Family 
 

8.3
7.7

Cost-Per-Print 
 

9.9
8.3

Color Printing Cost 
 

0.035 US$/print
0.131 US$/print

Black-Only Printing Cost 
 

0.011 US$/print
0.055 US$/print

Scan Quality 
 

5.5
8.0

Expected Maintenance 
 

8.0
7.0

Full Comparison

Design

Build Quality 
 

8.5
8.0

Build Quality Close Up 
 

Compare High-Res
Brother MFC-J6945DW Build Quality Close Up
Compare High-Res
Epson WorkForce Pro WF-7840 Build Quality Close Up

Type  

All-In-One
All in One
Show Text 

Dimensions 
 

ISO View Picture 
 

Compare High-Res
Brother MFC-J6945DW ISO View Picture
Compare High-Res
Epson WorkForce Pro WF-7840 ISO View Picture

Height  

14.9" (37.8 cm)
13.7" (34.9 cm)

Width  

22.6" (57.3 cm)
20.2" (51.4 cm)

Depth  

18.8" (47.7 cm)
17.6" (44.8 cm)

In Use Picture 
 

Compare High-Res
Brother MFC-J6945DW In Use Picture
Compare High-Res
Epson WorkForce Pro WF-7840 In Use Picture

Height When In Use 
 

18.4" (46.8 cm)
20.1" (51.1 cm)

Width When In Use 
 

22.6" (57.3 cm)
20.2" (51.4 cm)

Depth When In Use 
 

32.8" (83.2 cm)
39.2" (99.6 cm)

Weight 
 

50.0 lbs (22.7 kg)
43.0 lbs (19.5 kg)

Expected Maintenance 
 

8.0
7.0

Ink Related Maintenance 
 

Expected
Expected

Drum Unit 
 

No Drum Unit
No Drum Unit
Show Text 

Display Screen 
 

9.0
8.5

Display Screen Picture 
 

Compare High-Res
Brother MFC-J6945DW Display Screen Picture
Compare High-Res
Epson WorkForce Pro WF-7840 Display Screen Picture

Display Screen  

Yes
Yes

Display Screen Size 
 

3.7" (9.3 cm)
4.3" (11.0 cm)

Touchscreen  

Yes
Yes
Show Text 

Cartridge 
 

9.9
7.1

Cartridge Picture In The Printer 
 

Compare High-Res
Brother MFC-J6945DW Cartridge Picture In The Printer
Compare High-Res
Epson WorkForce Pro WF-7840 Cartridge Picture In The Printer

Technology  

Inkjet
Inkjet

SuperTank 
 

No
No

Photo Cartridge 
 

No
No

Color  

Yes
Yes

Number Of Color Cartridges 
 

3
3

Black Cartridge Model 
 

LC3037BK
Epson 812 Black

Tested Black Page Yield 
 

161 prints
19 prints

Estimated Black Page Yield 
 

3,059 prints
361 prints

Color Cartridge Model 
 

LC3037 C/M/Y
Epson 812 C/M/Y

Tested Color Page Yield 
 

80 prints
14 prints

Estimated Color Page Yield 
 

1,833 prints
297 prints

Third Party Cartridge 
 

No Cartridges
Purchased One Worked

Ink Type 
 

Dye And Pigment
Pigment

High Yield Cartridge 
 

Yes
Yes
Show Text 

Scanner Features 
 

9.5
8.9

Scanner Flatbed Picture 
 

Compare High-Res
Brother MFC-J6945DW Scanner Flatbed Picture
Compare High-Res
Epson WorkForce Pro WF-7840 Scanner Flatbed Picture

Scanner 
 

ADF + Flatbed
ADF + Flatbed

ADF Capacity 
 

50 pages
50 pages

Scan Speed 
 

11 PPM
7 PPM

Duplex Scanning 
 

Automatic (Single-Pass)
Automatic (Dual-Pass)

Max Flatbed Scan Size 
 

11" x 17"
11" x 17"

Max ADF Scan Size 
 

11" x 17"
11" x 17"

Flatbed Hinge Adjustability 
 

1.20" (31 mm)
0.46" (12 mm)

Fax 
 

Yes
Yes

Copy 
 

Yes
Yes

OCR Included 
 

Built-in
Software
Show Text 

Scan Quality 
 

5.5
8.0

Scan Quality Photo 
 

Compare High-Res
Brother MFC-J6945DW Scan Quality Photo
Compare High-Res
Epson WorkForce Pro WF-7840 Scan Quality Photo

Max Scan Resolution 
 

1,200 DPI
1,200 DPI

Max Scan Color Depth 
 

24Bit
24Bit
Show Text 

Printing Size 
 

Letter (8.5" x 11")  

Yes
Yes

Legal (8.5" x 14")  

Yes
Yes

Tabloid (11" x 17")  

Yes
Yes

A6 (105mm x 148mm)  

Yes
Yes

A5 (148mm x 210mm)  

Yes
Yes

A4 (210mm x 297mm)  

Yes
Yes

Photo (2" x 3")  

No

Photo (4" x 6")  

Yes
Yes

Photo (5" x 7")  

Yes
Yes

Photo (8" x 10")  

Yes
Yes

Max Paper Weight 
 

260 g/m²
260 g/m²
Show Text 

In The Box  

In the Box Picture 
 

Compare High-Res
Brother MFC-J6945DW In the Box Picture
Compare High-Res
Epson WorkForce Pro WF-7840 In the Box Picture
Show Text 

Battery 
 

Advertised Battery Life 
 

N/A
N/A

Tested Charging Time 
 

N/A
N/A
Document

Black & White Documents 
 

7.0
8.0

B&W Document Picture 
 

Compare High-Res
Brother MFC-J6945DW B&W Document Picture
Compare High-Res
Epson WorkForce Pro WF-7840 B&W Document Picture

Color Ink Needed For Black & White 
 

Yes
Yes
Show Text 

Color Documents 
 

7.5
8.0

Color Document Picture 
 

Compare High-Res
Brother MFC-J6945DW Color Document Picture
Compare High-Res
Epson WorkForce Pro WF-7840 Color Document Picture
Show Text 

Cost-Per-Print 
 

9.9
8.3

Printer Total Cost 
 

See details
See details
 Compare in Graph Tool

Black Cartridge Price 
 

32.99 US$
19.99 US$

Color Cartridge Price 
 

64.49 US$
38.95 US$

Black-Only Printing Cost 
 

0.011 US$/print
0.055 US$/print

Color Printing Cost 
 

0.035 US$/print
0.131 US$/print

Photo Printing Cost 
 

0.090 US$/print
0.348 US$/print

Ink Subscription 
 

Optional
No
Show Text 

Printing Speed 
 

7.9
7.6

Printing Speed Video  

Black Only Text Document 
 

13 PPM
18 PPM

Color Document 
 

11 PPM
7 PPM

Photo Printing Time 
 

68.0 s
60.0 s

Single Page Out Time (Black Only) 
 

8.0 s
14.0 s

Duplex Printing 
 

Automatic
Automatic

Input Tray Capacity 
 

600 pages
550 pages
Show Text 

Document Printing Sizes 
 

Letter (8.5" x 11")  

Yes
Yes

Legal (8.5" x 14")  

Yes
Yes

Tabloid (11" x 17")  

Yes
Yes

A6 (105mm x 148mm)  

Yes
Yes

A5 (148mm x 210mm)  

Yes
Yes

A4 (210mm x 297mm)  

Yes
Yes

Max Paper Weight 
 

260 g/m²
260 g/m²
Show Text 
Photo

Color Gamut 
 

6.0
7.0

Parrots Picture  

Brother MFC-J6945DW Parrots Picture

Color Range Picture 
 

Compare High-Res
Brother MFC-J6945DW Color Range Picture
Compare High-Res
Epson WorkForce Pro WF-7840 Color Range Picture
Show Text 

Color Accuracy 
 

6.3
6.9

Friends Picture  

Brother MFC-J6945DW Friends Picture

Color dE Picture 
 

Compare High-Res
Brother MFC-J6945DW Color dE Picture
Compare High-Res
Epson WorkForce Pro WF-7840 Color dE Picture

Color dE Graph 
 

Compare High-Res
Brother MFC-J6945DW Color dE Graph
Compare High-Res
Epson WorkForce Pro WF-7840 Color dE Graph

Average Color dE 
 

7.60
6.33
Show Text 

Small Details 
 

8.5

Small Details Photo  

Brother MFC-J6945DW Small Details Photo

Max Print Resolution (DPI) 
 

1200 x 4800

Photo Printing Sizes 
 

9.5

Glossy Paper (4" x 6")  

Yes
Yes

Glossy Paper (5" x 7")  

Yes
Yes

Glossy Paper (8" x 10")  

Yes
Yes

Glossy Paper (8.5" x 11")  

Yes

Glossy Paper (13" x 19")  

No

Borderless Printing 
 

Yes
Yes

Photo Printing Quality 
 

7.0

Side By Side Print/Photo  

Epson WorkForce Pro WF-7840 Side By Side Print/Photo

Side By Side Print/Photo Large  

Epson WorkForce Pro WF-7840 Side By Side Print/Photo Large

Portrait Picture  

Epson WorkForce Pro WF-7840 Portrait Picture

Borderless Printing 
 

Yes
Yes
Show Text 
Mobile App And Connectivity

Connectivity 
 

9.0
9.0

Inputs Picture 
 

Compare High-Res
Brother MFC-J6945DW Inputs Picture
Compare High-Res
Epson WorkForce Pro WF-7840 Inputs Picture

Ethernet 
 

Yes
Yes

USB Input To Computer 
 

Yes
Yes

Bluetooth 
 

No
No

Wireless 
 

Yes
Yes

Wi-Fi via Router 
 

Yes
Yes

Wi-Fi Direct 
 

Yes
Yes

External Storage Support 
 

Yes
Yes

Apple AirPrint 
 

Yes
Yes

Mopria Print Service 
 

Yes
Yes
Show Text 

Mobile App 
 

10
10

App Printscreen 
 

Compare High-Res
Brother MFC-J6945DW App Printscreen
Compare High-Res
Epson WorkForce Pro WF-7840 App Printscreen

Mobile App  

Yes
Yes

App Name  

Brother iPrint&Scan
Epson Smart Panel

iOS  

Yes
Yes

Android  

Yes
Yes

Photo (JPEG, PNG) 
 

Android and iOS
Android and iOS

PDF 
 

Android and iOS
Android and iOS

Microsoft Office Files 
 

Android and iOS
Android Only

Text Files (TXT) 
 

Android and iOS
Android Only

Webpages (HTML) 
 

Android and iOS
Android and iOS
Show Text 

OS Compatibility 
 

Windows  

Fully
Fully

macOS  

Fully
Fully

Chrome OS  

Fully
Fully
Show Text 

Check Price

White/Grey
MFC-J6945DW
SEE PRICE
Amazon.com
Black
Epson WorkForce Pro WF-7840
SEE PRICE
Amazon.com
White/Grey
MFC-J6945DW
SEE PRICE
Walmart.com
Black
Epson WorkForce Pro WF-7820
SEE PRICE
BestBuy.com
White/Grey
MFC-J6945DW
SEARCH
B&H
 
White/Grey
MFC-J6945DW
SEARCH
BestBuy.com
 
White/Grey
MFC-J6945DW
SEARCH
Brother
 
Back to Top

Brother MFC-J6945DW

Epson WorkForce Pro WF-7840

Comments

  1. Comparison
 • Posted 1 year ago

Brother MFC-J6945DW vs Epson WorkForce Pro WF-7840: Main Discussion

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