The Sunmi 80mm Cloud Printer prints receipts and order tickets for the Cents Employee App. This guide shows its buttons, lights, and ports, how to load paper, and how to fix common issues.
Use this if you're setting up a Sunmi Cloud Printer, changing the paper roll, or trying to figure out what a light means.
Buttons, lights, and ports
Door Cover
Door Cover Button: It is used to open the door cover and install/replace the printing roll paper. Press the door cover button and the door cover will pop open automatically.
Power Button: Used for controlling the printer power; Press "|" to turn on the printer, and press "No ID" to turn off the printer.
Paper Feed Button: Long press the paper feed button to start blank paper feed, and release to stop paper feed.
Volume Adjustment Button
Abnormality Indicator: The red light is on, indicating that the printer is short of paper, blocked with paper or with abnormal voltage. The red light flashes, indicating that the print head is overheated. The red light goes out, indicating that the printer is normal.
Network Indicator: The blue light is on, indicating that the device is connected to the server. The blue light goes out, indicating that the device is disconnected from the server.
Power Indicator: The green light is on, indicating the startup state; The green light goes off, indicating the shutdown state.
Reminder Indicator: The white light flashes, indicating that there is paper to be taken away or the paper is blocked. The white light is on, indicating that the paper roll is about to run out (only the sensor with paper will be equipped with this function); The white light goes out, indicating that there is no reminder.
Cash Box Port: Connect the cash box and drive the cash box to unlock. This equipment only supports external 24V/1A cash box. Please pay attention to the electrical performance parameters of the cash box. When connecting the cash box, ensure that it is shut down.
USB Port: Connect POS machines and other equipment to realize USB printing; Ensure that the printer is shut down when connecting the data cable.
DC Power Port: Connect 24V/2.5A DC to supply power to the printer; When connecting the power cord, ensure that the printer power button is in the off position.
Lan Network Port: Connect the LAN to complete the printing of issued orders from other devices in the LAN; Connect to the WAN to complete the printing of orders issued in the cloud.
Pairing Button: Long press for more than 3 seconds to enter the network pairing state. Double-click to execute the network self-inspection program and print the network detection report.
How to load paper
Press the door cover button to open the printer flip cover.
Place the printer roll in the direction shown in the figure.
Cover the printer flip cover (Note: When printing blank, please make sure that the paper roll is installed in the correct direction)
Specs and replacement paper
Print Method: Direct thermal
Printing Paper Width: Max. 80 mm
Print Line Dots: 576 Dots
Effective Print Width: 72 mm (±0.1 mm)
Troubleshooting
The red light is on.
The printer is out of paper, jammed, or has a voltage problem. Check the paper roll and the power supply.The red light is flashing.
The print head is overheating. Let the printer rest for a few minutes.The blue light is off.
The printer isn't connected to the server. Check the network cable, or long-press the pairing button for 3 seconds to pair it again. Double-click it to print a network report.It prints blank receipts.
The paper roll is in backward. Open the cover and flip the roll.The white light is flashing.
Take the printed receipt, or clear a paper jam.The cash drawer won't open.
Connect the drawer to the printer's cash box port (24V/1A drawers only). See How to Connect Your Cash Drawer.
Need assistance?
Feel free to text our Cents Support team at 888-302-8809.



