![](https://pdfstore-manualsonline.prod.a.ki/pdfasset/f/54/f545b879-1a78-49a7-92d6-2a709c89d7d3/f545b879-1a78-49a7-92d6-2a709c89d7d3-bg30.png)
When using optional trays:
• Always use a caster base when the printer is configured with a 2100‑sheet tray.
• The 2100‑sheet tray must always be at the bottom of a configuration.
• A maximum of four optional trays may be configured with the printer.
• The optional 250‑ and 550‑sheet trays may be installed in any order.
Using the printer control panel
1
2
3
4
5
6
7
8
9
10
Use the To
1 Display
• View the printer status.
• Set up and operate the printer.
2 Select button Submit changes made in the printer settings.
3 Arrow buttons Scroll up and down or left and right.
4 Keypad Enter numbers, letters, or symbols.
5 Sleep button Enable Sleep mode or Hibernate mode.
Do the following to wake the printer from Sleep mode:
• Press any hard button.
• Pull out Tray 1 or load paper in the multipurpose feeder.
• Open a door or cover.
• Send a print job from the computer.
• Perform a power‑on reset with the main power switch.
• Attach a device to the USB port on the printer.
6 Stop or Cancel button Stop all printer activity.
7 Back button Return to the previous screen.
8 Home button Go to the home screen.
9 Indicator light Check the status of the printer.
10 USB port Connect a flash drive to the printer.
Note: Only the front USB port supports flash drives.
Using MS810n, MS810dn, MS811n, MS811dn, MS812dn 48