Main components - MX870

Article ID: ART105737 | Date published: 05/11/2015 | Date last updated: 05/06/2019


Main components - MX870


Main Components

Front View

Rear View

Inside View

Operation Panel

Front View

(1) ADF (Auto Document Feeder)

Load a document to copy, scan, or fax. The documents loaded in the Document Tray are scanned automatically one sheet at a time.


(2) Document Feeder Cover

Open when clearing jammed documents.

(3) Document Guides

Adjust these guides to match the width of document in the ADF.

(4) Document Tray

Open to load a document in the ADF. You can load two or more sheets of document of the same size and thickness. Load the document with the side you want to scan facing up.

(5) Document Output Slot

Documents scanned from the ADF are delivered here.

(6) Paper Support

Raise and tip back to load paper in the Rear Tray.

(7) Rear Tray

Load photo paper or envelopes which you can use on the machine. Two or more sheets of the same size and type of paper can be loaded at the same time, and fed automatically one sheet at a time.


(8) Paper Guides

Slide to align with sides of the paper stack.

(9) Document Cover

Open to load an original on the Platen Glass.

(10) Wi-Fi lamp

Lights or flashes blue to indicate the wireless LAN status.

Lights: Wireless LAN active is selected.

Flashes: Printing or scanning over wireless LAN. Also flashes while searching for wireless LAN access point during setup and when connecting to the access point.

(11) Paper Output Tray

Opens automatically when printing or copying starts and printed paper is ejected.

(12) Output Tray Extension

Open to support the printouts. Open it when printing or copying.

(13) Operation Panel

Use to change the settings of the machine or to operate it.

See Operation Panel.

(14) Scanning Unit Detection Button

Locks the Scanning Unit (Cover) while the Document Cover is open. This button is pressed down when the Document Cover is closed, so that you can open the Scanning Unit (Cover). (You do not need to touch this button.)

For information on the Scanning Unit (Cover), see Scanning Unit (Cover).

(15) Cassette

Load A4, B5, A5, or Letter-sized plain paper and insert it into the machine. Two or more sheets of the same size of plain paper can be loaded at the same time, and fed automatically one sheet at a time.


(16) Direct Print Port

Connect a PictBridge compliant device such as a digital camera or the optional Bluetooth Unit BU-30* to print directly.


You can also insert a USB flash drive to this port.


* The Bluetooth Unit is not available in some countries or regions depending on the local laws and regulations.

Do not connect any equipment other than PictBridge compliant devices, the optional Bluetooth Unit BU-30, and USB flash drives to the Direct Print Port of the machine. This may cause fire, electric shock, or damage to the machine.


Do not touch the metal casing.
Do not use the USB cable longer than around 10 feet / 3 meters to connect any PictBridge compliant device to the machine since it may affect the operation of other peripheral devices.

(17) Platen Glass

Load an original to copy, scan, or fax.

Rear View

(18) Wired LAN Connector

Plug in the LAN cable to connect the machine to a LAN.



Do not touch the metal casing.


Remove the LAN connector cap before connecting the LAN cable.

(19) USB Port

Plug in the USB cable to connect the machine with a computer.

Do not touch the metal casing.
Do not plug in or unplug the USB cable while the machine is printing or scanning originals with the computer.

(20) External Device Jack

Connect an external device such as telephone, answering machine, or modem of a computer.



Do not touch the metal casing.


Remove the Telephone connector cap to connect the external device.

(21) Telephone Line Jack

Connect the telephone line.

To avoid an electric shock, do not touch the metal casing.

(22) Rear Cover

Detach to remove jammed paper.

(23) Power Cord Connector

Plug in the supplied power cord.

Inside View

(24) Ink lamps

Light or flash red to indicate the ink tank status.


(25) Print Head Holder

Install the Print Head.

(26) Print Head Lock Lever

Locks the Print Head into place.



Do not raise this lever after installing the Print Head.

(27) Scanning Unit (Cover)

Scans originals. Open it to replace ink tanks, to check ink lamps, or to remove jammed paper inside the machine. When opening the Scanning Unit (Cover), lift it with the Document Cover closed.

(28) Access lamp

Lights or flashes to indicate the memory card status.


(29) Card Slot

Insert a memory card.


(30) Card Slot Cover

Open to insert a memory card.


(31) Scanning Unit Support

Holds the Scanning Unit (Cover) being opened.



For details on installing the Print Head and ink tanks, refer to the printed manual: Getting Started.

Operation Panel

(1) ON button

Turns the power on or off. Before turning on the power, make sure that the Document Cover is closed.



Disconnecting the power plug
When disconnecting the power plug after turning off the power, be sure to confirm that all lamps on the Operation Panel are turned off. If the power plug is disconnected from the wall outlet while any lamp on the Operation Panel is lit or flashing, the machine may become unable to print properly since the Print Head is not protected.
If the power plug is disconnected, the date/time settings will be reset and all documents stored in memory will be lost. Send or print a necessary document, or save it on a memory card or USB flash drive before disconnecting the power plug.


The machine cannot receive faxes when the power is turned off.
The power cannot be turned off while the machine is sending or receiving a fax, or when there are unsent faxes in the machine's memory.

(2) In Use/Memory lamp

Flashes when sending or receiving faxes, and lights when there are documents saved in the machine's memory.

(3) COPY button

Switches the machine to the copy mode.


(4) FAX button

Switches the machine to the fax mode.


(5) LCD (Liquid Crystal Display)

Displays messages, menu items, and the operational status. You can also preview photos on the LCD before printing.



The LCD will turn off if the machine is not operated for about 5 minutes. To restore the display, press any button except the ON button or perform the print operation. The display will be also restored when receiving faxes.

(6) Up, Down, Left, and Right buttons (Scroll Wheel)

Used to select a menu or setting item. The Left or Right button is also used to enter characters.


(7) OK button

Finalizes the selection of a menu or setting item.

Resolves an error when printing is in progress or resumes the machine's normal operation after removing jammed paper or to eject documents remaining in the ADF.

(8) Numeric buttons

Used to enter numerical values such as the number of copies, as well as fax/telephone numbers and characters.

(9) Redial/Pause button

Displays the list of numbers dialed with the Numeric buttons to redial the selected number. You can also use this button to enter pause time between or after numbers when dialing or registering numbers for example international calls.

(10) Coded Dial button

Displays the coded speed dial list or telephone number search list on the coded speed dial screen. You can dial a recipient from the list.

(11) Stop button

Cancels operation when print, copy, scan, or fax transmission/reception job is in progress.

(12) Black button

Starts to make black & white copy, scan, fax transmission, etc. This button lights blue when available.

(13) Color button

Starts to make color print, copy, scan, fax transmission, etc. This button lights blue when available.

(14) Hook button

Connects or disconnects the telephone line.

(15) Tone button

Switches to tone dialing temporarily or changes the input mode when entering characters. This button is also used to dial with the Numeric buttons.

(16) Back button

Returns the LCD to the previous screen.

(17) Function buttons

Used to select an item displayed at the bottom of the LCD.

(18) CARD button

Switches the machine to the card mode.


(19) SCAN button

Switches the machine to the scan mode.


(20) Setup button

Displays the setup menu.


(21) Alarm lamp

Lights or flashes orange when an error occurs, such as paper-out or ink-out.

(22) One-Touch Speed Dial buttons

Used to dial pre-registered fax/telephone numbers or groups with a simple operation.



The machine makes the beep sound when pressing buttons on the Operation Panel.



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