Service Support

SFH-RPP322N-FAQ

2026-01-13

SF Express RPP322N Frequently Asked Questions Troubleshooting Manual

1. Basic Functionsillustrate

1.1 Appearance and Component Description

1.2 systemsOperating Instructions

Serial Number	Operation Name	System Functions
1	Power on	With the printer off, press and hold the [Power] button.?3S, printer powered on
2	Power off	With the printer powered on, press and hold the [Power] button.?3S, printer off
3	Paper feed	Press and hold the [Paper Feed] button for 3 seconds to feed a full sheet of paper, simultaneously moving it to the gap.
4	Automatic sleep	When the printer is powered on, if there is no button operation or data transfer within 10 seconds, the printer will automatically enter sleep mode.
5	Automatic shutdown	If the printer is powered on and there is no button press or data transfer within 2 hours, the printer will automatically shut down.
6	wake	When the printer is in sleep mode, you can wake it up by pressing the [Power] button, [Settings] button, [Paper Feed] button, or by the printer receiving data.
7	Factory reset	Briefly press the [Power] button to wake the printer → Press and hold the [Setup] button for 3 seconds to enter the settings interface.?→ Briefly press the [Settings] button to select → Locate the "Restore Factory Settings" option → Briefly press the [Paper Feed] button to confirm → A beep will sound to complete the setting.

1.3 MenuFunction Description

Short press the [Power] button to wake up the printer → Long press the [Setup] button for 3 seconds to enter the settings interface → Short press the [Setup] button to make a selection → Switch to the corresponding menu interface, and use the [Power] button and [Paper Feed] button to switch and confirm;

Menu function interface:

1.4?Printer paper roll installation

①Remove the seal from the printer paper roll;

②Press【Lid Opening Button】Open the paper tray, move the baffle lever to unlock it, and initially adjust the paper width baffle to the desired paper width.

③Place the paper roll into the paper tray, fine-tune the paper width baffle to the paper roll, and then use the paper width baffle lever to fix it;

④Pull the paper out a section along the paper outlet and close the paper tray cover.

2.?Instructions for daily use:

2.1 PrintingSelf-test page

Press and hold the [Settings] button to switch to the "Print Self-Test Page" interface, then press the [Paper Feed] button briefly to print the self-test page;

Check the printer firmware version, printing mileage (meters), Bluetooth connection barcode, and Bluetooth MAC address information on the self-test page.

2.2 Tag Learning Calibration

Operating instructions:

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 keyThe system will automatically learn tags, and a "Learning successful" message will appear on the screen.；

Operation video:

2.3 Setting Print Density

Button setup method:

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】Increase the print density value appropriately；

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

Operation video:

2.4 Connect via Bluetooth

Customers can choose the appropriate Bluetooth connection method for printing based on their actual device usage scenario. Common Bluetooth pairing scenarios are as follows:

① Handheld terminals available:

Scan the barcode on the paper tray cover or the one-dimensional barcode on the self-test page;

Notice:Android phones scan the first QR code to connect; Apple phones scan the second QR code to connect.

②Mobile users can choose:

In the app or mini-program, select "Add Bluetooth Printer," search for and connect to the device that has the same Bluetooth MAC address as the printer's self-test page.

③ RPP322N APP compatibility scenarios:

a. The tag version is for transit points, service points, and delivery personnel only:Shunzhuan, warehouse manager, deliveryman, mini-program, Fengyun App (Android)
b. The invoice version is for SF Pharmacy and SF Airlines only:Shunhang GHS, Fengyun IOS (Apple)

2.5 Printer Firmware OTA Upgrade (Android/iOS)

①APP download tool:

Open your browser and scan the QR code below to download or access:http://www.rongtayun.com/cp/api/download/OTATool ?

Printer firmware OAT upgrade QR code

②Printer firmware upgrade procedure:

a.?Click 【Manual Connection】to select the printer's Bluetooth name and connect; or click 【Scan to Connect】to scan the barcode on the printer to connect.

catch;

b.Click "Check for Latest Firmware Version" to check for the latest firmware.；

c.Click "Update" to upgrade the printer firmware.；

d.Wait for the printer to upgrade, which takes about 20 seconds. The printer will beep when the upgrade is complete.；

Upgrade complete, printer is now usable.；

③ Upgrade operation video:

2.6 Printer Bluetooth Firmware OTA Upgrade

① Download the APP tool (including Bluetooth firmware):

Tool Download →Download link

Bluetooth firmware →Download link

② BluetoothFirmware upgrade operation steps:

a. OpenBluetoothOTA software upgradeClick【SCAN】Search for the printer's Bluetooth name, and then click on the corresponding Bluetooth name to connect;

b. Save the Bluetooth firmware to your phone, thenClick【Select OTA file】Select Bluetooth firmware, then click【Start OTA upgrade】

c. Wait for the OTA upgrade notification to appear.at lastRestore the printer to factory settings.The printer works normally.(Refer to System Operation Instructions 1.2)

3.?Common problems and their solutions

3.1. Printed frames are broken/poor print quality

Abnormal phenomenon:

① Vertical blank stripes appear during printing, indicating missing information.

② The printed colors are very faint and the print quality is blurry.

Solution:

①Clean the print head

a.?Turn off the printer first, then open the top cover.；

b.?Wipe the print head with a cotton cloth or cotton swab dipped in alcohol.；

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
Telephone: 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.