SFH-RPP322N-FAQ

c. Wait until the alcohol has completely evaporated before closing the top cover and printing the test.

Cleaning operation video:

② Set print density

a. Short press【Power button】Wake up the printer；

b. Long press【Set key】3S enters the settings interface；

c. Short press【Set key】Make a selectionSwitch to"Print density"interface;

d. Short press【Paper feed key】appropriateIncrease printing speedConcentration value；

and.Press again briefly【Power button】Confirmation: You will hear a "beep" from the buzzer indicating that the setup is complete.；

③ If the above two methods fail to resolve the issue, please contact Rongda after-sales technical support.

3.2. Sensor error/inaccurate positioning/blank printout

Abnormal phenomenon:

① Sensor medium detection error, alarm error, etc.

② Unable to stop at the gap

③ Continuously print blank paper or print one sheet and print one blank sheet.

Solution:

Re-implement "tag learning"

a. Short press【Power button】Wake up the printer
；

b. Long press【Set key】3S enters the settings interface；

c. Short press【Set key】Make a selectionSwitch to"Tag learning"interface;

d. Short press【Paper feed key】Tag learning；

and.Screen display“Learning success”Complete tag learning；

3.3 Bluetooth malfunction

Abnormal phenomenon:

Frequent Bluetooth disconnectionsBluetooth connection is not smooth within 10 meters.

Solution:

Perform an OTA update for the printer's Bluetooth firmware. (Refer to step 2.5)

3.4 The computer won't turn on.

Abnormal phenomenon:

Power-on failure, power is on but cannot be turned on.

Solution:
① Check that the battery power is too low. You can replace the battery or charge it by connecting a power cord.

② Scratch the metal pins of the battery with your fingernail, then put the battery back in and test the device.

②If the above two methods fail to resolve the issue, please contact Rongda after-sales technical support;

3.5 Print content compression/missing print content

Abnormal phenomenon:

The printed shipping label is missing a section of numbers or text, and the area code is not displayed.

Solution:

① Reduce the print density appropriately and then conduct a print test;

②Due to differences in paper quality, if lowering the print density is ineffective, try replacing the paper roll for testing.

③ If the above two methods fail to resolve the issue, please contact Rongda after-sales technical support;

3.6 Do not print

Abnormal phenomenon:

Clicking "print" on the app won't produce a receipt.

Solution:
①If the self-test page prints normally, you need to check if the printing software settings are correct.

② If the self-test page cannot be printed, you need to check if the battery power is normal;

③ For examplePlease contact us if your printer is damaged.Rongda after-sales technical support;

3.7 Printer malfunction alarms and operating procedures

Solution:

① Label not detected: a. Install label paper or express waybill; b. Relearn the label;
② Low battery, please charge: a. Please check the battery level; b. Check if the battery is malfunctioning;
③ Printer overheating: Turn off the printer and let it sit for a while before using it again.；

④ Please close the paper tray: Close the top cover tightly;

3.8 Charging failure

Abnormal phenomenon:

Cannot charge/Full charge/Slow charging and fast power consumption

Solution:
① Check the battery contacts for dirt or grime;
② If any of the following components—battery, USB cable, charger, or printer—is damaged, check and test them one by one.

③ If confirmed asIf the parts are damaged, please contact us.Rongda after-sales technical support;

3.9 Button malfunction

Abnormal phenomenon:

The printer cannot be woken up by pressing any key after it has gone into sleep mode / Pressing the paper feed button has no effect.

Solution:
① If one of the buttons is unresponsive, the button panel may be damaged. Please contact after-sales service to repair the printer.
② If all buttons are unresponsive, the printer program may be stuck. You can try restoring it to factory settings.likePlease contact us if your printer is damaged.Rongda after-sales technical support;

4. After-sales service and repair methods
4.1 400 Technical Support
After-sales technical service hotline: If the above methods fail to resolve the equipment malfunction, please call the after-sales service hotline for consultation: 400-800-0596.

4.2 After-sales repair methods
Repair address:
Recipient: After-sales Service Department
Telephones: 15359340780
Address: Rongda Science and Technology Park, No. 88 Tonghui South Road, Tongan Industrial Concentration Zone, Xiamen City, Fujian Province
Return Repair Instructions: When returning the device for repair, please include the return address, contact information, a list of all items packed in the box, and a detailed description of the malfunction in the package. This will help improve the efficiency of the return process. Thank you for your support! If you require collect on delivery, please communicate with us in advance. Otherwise, the device will be returned according to the sender's information.