[D-01] Part Names and Functions
This printer is comprised of parts with various functions.
With an understanding of the names and functions of the parts, you will be able to use the printer properly and make the most of its features.
Front View
- Output Tray
Outputs printed pages face down.
- Power Switch
Turns the printer on and off.
- Lift Handles
Hold these handles when moving the printer.
- Manual Feed Slot Cover
Open when using the manual transfer guide.
- Control Panel
- The control panel has a key for canceling a job.
- The control panel also has indicators that show the printer status.
- Front Cover
Open when replacing toner cartridges.
- Manual Feed Slot
Slot for feeding one sheet of paper at a time during manual feed printing.
- Paper Guides
Guides paper so that it feeds properly into the printer.
- Paper Cassette
Load up to 150 sheets of plain paper (80 g/m2).
Rear View

- Ventilation Slots
Allows ventilation of heat from inside the printer.
Provide sufficient clearance around the ventilation slots so that heat can dissipate.
- Lift Handles
Hold these handles when moving the printer.
- Reset Button*
Press this button together with the power switch to reset the printer to the default settings.
- USB Port
Connects the USB cable to the printer.
- Ethernet Port*
Connects the Ethernet cable to the printer.
- 100 Indicator (Green)*
Turns on or off depending on the Ethernet connection.
On: Connected to 100BASE-TX network
Off: Connected to 10BASE-T network
- LNK Indicator (Green)*
Turns on when the Ethernet cable is connected.
On: Network connection operating normally
- ERR Indicator (Orange)*
Turns on or blinks when there is an Ethernet connection error.
On/Blinking: Network board malfunction
- Rear Cover
Open when clearing a paper jam.
- Power Socket
Connect the supplied power cord to this socket.
- Rear Bottom Cover
The rating label and MAC address are located on the rear bottom cover.
* Only on LBP5050n

WARNING
Do not block the ventilation slots
Blocking the ventilation slots may cause the printer to overheat, resulting in a fire.
NOTE
Parts exclusive to LBP5050nThe following parts are only available on LBP5050n.
- Reset Button
- Ethernet Port
- 100 Indicator
- LNK Indicator
- ERR Indicator
LBP5050 is not designed for use on a network, and therefore, this model does not have these parts.
Control Panel (Indicators)
NOTE
Although not shown in the above illustration, the control panel is labeled with names on printer models sold in certain countries and regions.
Indicator types and their statuses
Key
Number |
Name |
Function |
Refer to |
6 |
Cancel Job Key |
Press this key to cancel the job that is currently being printed or a job with an error. |
"Canceling a Print Job" |
Interior View
- Toner Cartridge Tray
Tray for installing the toner cartridges.
Toner Cartridge Slots
- Y (Yellow)
Location for installing the Y (yellow) toner cartridge.
- M (Magenta)
Location for installing the M (magenta) toner cartridge.
- C (Cyan)
Location for installing the C (cyan) toner cartridge.
- K (Black)
Location for installing the K (black) toner cartridge.
Paper Source
There are two paper sources.
Paper cassette
- Paper Guides
Adjust the paper guides to match the width of the paper.
- Guides
Use the guides to align the position of the paper guides with the size of the standard paper size.
- Lock Release Lever
Release the lock to move the paper guide toward you.
- Lock Release Lever
Adjust the length of the paper cassette when loading paper longer than A4 size.
- Handle
Use the handle when removing the paper cassette.
- Paper Guide
Adjust the paper guide to match the length of the paper.
- Hooks
Holds down the loaded paper.
- Load Limit Guides
Indicates the maximum height of the paper stack that can be loaded in the paper cassette.
Manual feed slot
- Paper Guides
Adjust the paper guides according to the paper width so that the paper is fed properly into the printer.
- Manual Feed Slot
Open when a paper jam has occurred in the manual feed slot.
IMPORTANT
Amount of paper that can be loaded in the manual feed slot
Load one sheet of paper in the manual feed slot at a time. Loading two or more sheets of paper may result in paper jams or damage to the printer.