5-in-1 Multifunction Office Machine


5-in-1 Multifunction Office Machine with Printer, Copier, Scanner, Fax and Network Connectivity


Enhance Business Efficiency

The KX-MB781 is a multifunction business machine with full networking functions to enhance business efficiency. Equipped with fax, copy, print and scan functions, it can handle virtually all office document processing needs in a small footprint that also efficiently utilizes office space.

Laser Printer

The laser printer function helps ensure high quality reproduction with 600 x 600 dpi resolution. The standard USB 2.0 High- Speed PC Interface allows easy connection to a PC, while the bundled "Multi-Function Station" launcher software allows easy setup and selection of multiple functions. The KX- MB781 also boasts high-speed printing at up to 18 pages per minute1 and a 250-sheet paper tray, so you don't have to worry about running out of paper even during a high-volume print job.

Color Scanner

The KX-MB781 allows you to scan documents in color or black & white at a high resolution of 600 x 1200 dpi using the flatbed, or at 600 x 300 dpi using the 20-sheet Automatic Document Feeder (max. scanning resolution of 9600 x 9600 dpi is available when interpolation is used). The high quality scanning outputs images with 24-bit color gradations (48-bit input), or 8-bit black & white gray scales (16-bit input). In addition, when the Multi-Function Station launcher software is installed on your PC, you can easily access a variety of image processing functions such as the "Viewer (Scan)" menu, where you can choose Page View, Reduction, Rotate, Duplicate, and Cut and Paste functions. OCR function is also available in 1-byte language designation models.

Flatbed Copier

In addition to the 20-sheet Automatic Document Feeder, a built-in flatbed allows you to scan, copy, or fax a variety of originals in different shapes or sizes such as magazines, newspapers, ID cards, business cards, etc. A CIS (Contact Image Sensor) makes high speed scanning and high resolution image reproduction possible even when the spine is raised slightly above the glass plate. With up to 600 x 600 dpi resolution, you get sharp, clear copies delivered at the high-speed copying rate of up to 18 copies per minute1.

Laser Fax

The Panasonic laser fax is designed for fast, efficient fax transmission at speeds up to 33.6 kbps (4 seconds per page1). This unit can also store up to 170 pages in its built-in memory. Ideal for broadcasting multi-page documents to multiple locations, this feature also enables out-of-paper reception of up to 150 pages. Even while the KX-MB781 is busy sending or receiving a memory-based fax, you can store additional documents to send later. And you can send or copy everything from family photos to company documents with near-original quality, thanks to the clarity and detail of 64-level halftone reproduction.

Network Connectivity

The LAN connection capability lets you share the printer and scanner through the network. Operation of this multifunctional printer from a desktop PC significantly improves office productivity. A 10 Base-T/100 Base -TX interface is also provided.

  1. Actual number of pages depends upon the contents of the pages and the resolution. Page count based upon ITU-T No. 1 test chart at standard resolution.

SpecificationsExpand All

    • Type
    • Multifunction Operation
    • 2-Line, 16-character LCD Display
    • Print Method
    • Document Management
    • Memory Capacity (for Operation and Storing Memory)
    • USB/Parallel/PC Interface
    • Scanning System
    • Dialing Mode
    • Flatbed
    • Automatic Document Feeder (pages)
    • Paper Tray Capacity
    • Multi-Purpose Tray
    • Optical Character Recognition (OCR) Software
    • Warmup Time
    • Power Consumption
    • Power Source
    • High Speed (pages per minute)
    • Print Resolution
    • Compatible Operating Systems
    • Emulation
    • Paper size
    • Plain Paper
    • First Copy Time
    • Memory Copy Speed
    • Resolution (Copier)
    • Multi-Copy
    • Reduction Copy
    • Enlargement Copy
    • Collate/Sort/Copy
    • Color Scanning
    • Monochrome Scanning
    • Scanning Resolution
    • Scanner Driver
    • Compatibility
    • Paper Handling
    • Scanning Width
    • Modem Speed (Kbps)
    • Transmission Speed
    • Compression System
    • Resolution
    • 64-Level Photo Resolution
    • Memory Transmission
    • Memory Reception
    • Dual Access
    • Error Correction Mode
    • Quick Scan
    • Broadcasting
    • Navigator Key
    • Distinctive Ring Detection
    • Extension Line Transfer
    • Help Function
    • LAN
    • Network Printer Sharing
    • Network Scanner Sharing
    • Network PC-FAX Sending
    • Network Interface
    • TEL/TAD/FAX Switching
    • Jog Dial Operation
    • Out of Paper Reception
    • Digital Duplex Speakerphone
    • Voice/Fax Pager Call
    • Electronic Volume Control
    • One-Touch Stations
    • Speed Dial Stations
    • Monitor Speaker
    • Answering Machine Interface
    • Fax Advantage Program
    • Caller ID
    • Dimensions (H x W x D)
    • Weight
    • UPC


KX-MB781 is rated 4.3 out of 5 by 4.
Rated 2 out of 5 by from too noisy, how do you turn off the machine? How do you turn off the machine. It is too noisy. 2am, 3am all at a sudden it turns on and wakes up everybody. Once you print, it stays on for 10 minutes with a very very loud machine-noise. too noisy, no turn off button. It reloads and a generator noise wakes up everybody automatically. And the bottom is not protected from outside surface. The bottom touches wherever is sitting not allowing the tray to move freely.
Date published: 2014-01-15
Rated 5 out of 5 by from
Date published: 2012-07-22
Rated 5 out of 5 by from COMPACT EQUIPMENT it is very useful and it saved the space. Is it possible to use the fax without landline phone connection. Any wireless or any other options available?
Date published: 2008-12-18
Rated 5 out of 5 by from Very user friendly Scan to PDF is the most appreciated feature (no need to buy additional software). Fast setup, but lacking directions for how to scan multiple pages into 1 PDF document. May be there, just not easy to locate. Easily scans 1 page into PDF. Quiet, small footprint, good print & scan quality.
Date published: 2008-12-15
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  • What support content is available for my product?

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    • Service Request - If you need a product repaired and is NOT a TV, Microwave, Vacuum, or Massage Chair, you can use our Online Repair Request. There, you will be able to get a repair estimate, pay online, and track the repair status.
  • Can I connect the product to my LAN via wireless connection? If possible how do I do It?
    You can connect the product to your network via wireless connection provided that you already know or has assigned an IP address to be used by the machine. The IP address to be used for your machine is automatically assigned by your router or hub. The IP address can also be assigned by your network administrator. Please contact your network administrator or support group for your router.
  • Can my product print colored documents?
    We do apologize but the product can only print documents in black and white. It does however have the capability to scan documents in black and white and colored.
  • How do I connect my product to a Local Area Network?
    To connect the product via network, connect an Ethernet cable at the back of the machine where it is labeled as LAN. The connected Ethernet cable should be connecting the product and your router or hub. Once this is done install the Multi Function Software, please use the disk that came with the package. The installation instructions will guide you on how to install the software.
  • How do I make a copy using the ADF?
    Note: Make sure that the [COPY] button is lid up, if not just press the. [COPY] button
    1. Open the document cover.
    2. Place the document facing UP.
    3. Change the resolution and contrast according to the type of document that you have.
    4. Key in the number of copies that you need to copy.
    5. Press [BLACK] or [WHITE] then it will start copying. After you finish copying, press the [STOP] to go back to the default settings.
    KX-MC6020 KX-MC6040

    Note: Make sure that the [COPY] button is lid up, if not just press the [COPY] button
    1. Place the document facing UP
    2. Change the resolution and contrast according to the type of document that you have
    3. Key in the number of copies that you need to copy
    4. Press [START]. After you finish copying, press the [STOP] to go back to the default settings
    KX-MB271 KX-MB3020 KX-MB781

    Note: Make sure that the [COPY] button is lid up, if not just press the [COPY] button
    1. Place the document facing DOWN.
    2. Close the document cover. Change the resolution and contrast according to the type of document that you have.
    3. Key in the number of copies that you need to copy.
    4. Press [START]. After you finish copying, press the [STOP] to go back to the default settings.

  • How do I put my fax machine's ringer OFF?
    1. Press the arrow down [▼] to select "RINGER OFF = OK?"
    2. Press [SET]
  • How do I send a fax using the ADF?
    Note: Make sure that the [FAX] button is lid up, if not just press the [FAX] button. Place the document facing UP until you hear a beep Change the resolution and contrast according to the type of document that you have Press [MONITOR] button Dial the fax number that you wish to send Wait for the fax tone then hit [START] button
  • How to remove paper jam near the manual tray?
    Pull open the paper input tray. Open the manual input tray. Remove the jammed paper carefully by pulling it upwards. Close the manual tray. Close the paper input tray. Open and close top cover to clear the error message.
  • How to remove recording paper jam near the fuser tray?
    1. Lift the top cover release and open the top cover
    2. Lift both green levers until stop
    3. Remove the paper jammed paper carefully by pulling out it upwards
    4. Push the green lever to the original position
    5. Close the top cover until locked

    1. Hold the left cover open lever and then pull open the left cover.
    2. Pull down both green levers until they stop.
    3. Remove the paper jam carefully by pulling it towards you.
    4. Push up the green lever back to the original position.
    5. Close the left cover.

  • How to turn ON my distinctive Ring?
    Press [MENU] [#] [4] [3] [0]. Press [1] to select "ON" or [0] to select "OFF". Press the [SET] button. Press [MENU] to end programming.
  • Why do I get a "Connection failed" error message on my machine and the USB connection no longer works?
    Based on the problem that you have described we suggest that you replace the USB cable being used. You can also try another USB port on your computer if there is no connection between the unit and the printer. You may also uninstall and reinstall the Multi Function Software to refresh the connection of the two devices.
Consumer Product Support and Technical Assistance
Operating hours:
Mon-Fri 9am-9pm EST
Sat-Sun 10am-7pm EST
Panasonic USA