K3W Smart Label Printer

Product Information

Specifications

• Brand: NIIMBOT
• Model: K3_W
• Printing Technology: Thermal Printing
• Ink/Toner Requirement: None
• Compatible Label Paper: Included Label Paper Roll

Safety Instructions

Before operating and using the printer, please carefully read
the following precautions to prevent personal injury or equipment
damage.

Precautions

• Safety Warning: The print head is a heated
  component and can become very hot during and immediately after
  printing. Do not touch the print head or its surrounding parts to
  avoid burns.

• Avoid touching the print head and connection
  plugs: To prevent potential damage from electrostatic
  discharge.

• Sharp cutting edges: The paper tearing device
  has sharp cutting edges. Refrain from using your fingers or other
  body parts to touch the paper tearing device to prevent cuts.

Special Notes

Please purchase our product models designed for specific your
country or region through the official NIIMBOT store or NIIMBOT
authorized channels. Purchasing a NIIMBOT product through an
unauthorized source may expose you to piracy risks, compatibility
issues with your local environment, or other factors that could
affect the product’s proper functionality. Additionally, NIIMBOT
may not be able to provide support for issues related to products
obtained through unauthorized channels.

Product Usage Instructions

01 – Product Instruction

Thank you for selecting and using the NIIMBOT K3_W Smart Label
Printer. This printer uses thermal printing, requiring no ink or
toner. Your only ongoing expense will be label paper. Count on us
for long-term reliable label printing and excellent post-sales
support. Please take a moment to read the user manual for usage and
maintenance instructions.

01-1 Package Contents

• Smart Label Printer *1
• Label Paper Roll *1
• Product Manual *1
• USB Cable *1
• Power cord *1 (may vary in different countries or regions)
• Power components*1

01-2 Product Function Description

• Paper Compartment Cover Button
• Paper Feed Button
• Paper Exit
• Power Switch
• Power Socket
• USB Type-B Port
• Sensor
• Paper Blade
• Print Head
• Label Paper Holder
• Label Paper Guide
• Print Roller Lock
• Printing (Drive) Roller
• Bracket Block (Mainly used for rear express single use)

01-3 Button Function Description

• Name: Power Button

• Function Description: Power On/Off

• Name: Operation Toggle

• Function Description: Open Compartment Button OPEN, Press,
  Short Press, Long Press, Double Click

• Name: Paper Feed Button

• Function Description: Standby: Feed One Sheet, Printing: Cancel
  Printing, Standby: Paper Type Calibration, Standby: Print Self-Test
  Page

01-4 Indicator Light Description

• Indicator Light: Off

• Status Description: Powered Off.

• Indicator Light: Blue (Always On)

• Status Description: Powered on, but not connected.

• Indicator Light: Blue (Blinking)

• Status Description: Firmware upgrading.

• Indicator Light: Green (Always On)

• Status Description: Printer connected.

• Indicator Light: Green (Blinking Slowly)

• Status Description: Printing

• Indicator Light: Green (Blinking Fast)

• Status Description: An issue has occurred; refer to the
  Troubleshooting Section.

• Indicator Light: Red (Always On)

• Status Description: Printer connected to Wi-Fi.

• Indicator Light: White (Always On)

02 – Installation and Usage

02-1 Power Connection

1. Make sure the printer’s power switch is in the Off (O)
   position.

2. Connect the power cord to the DC power port on the
   printer.

3. Plug the other end of the power cord into a suitable AC power
   outlet.

4. If the AC power outlet is live, the power indicator light will
   turn blue.

FAQ

• Q: Where can I purchase NIIMBOT products?

• A: Please purchase our product models designed for specific
  your country or region through the official NIIMBOT store or
  NIIMBOT authorized channels. Purchasing a NIIMBOT product through
  an unauthorized source may expose you to piracy risks,
  compatibility issues with your local environment, or other factors
  that could affect the product’s proper functionality.

• Q: What should I do if the printer’s indicator light is
  blinking fast?

• A: If the indicator light is blinking fast, an issue has
  occurred. Please refer to the Troubleshooting Section in the user
  manual for assistance.

• Q: Can I touch the print head during or after printing?

• A: No, the print head is a heated component and can become very
  hot during and immediately after printing. Do not touch the print
  head or its surrounding parts to avoid burns.

Product Manual
Smart Label Printer

Wuhan Jingchen Intelligent ldentificationTechnology Co., Ltd. Support Email : service@niimbot.com Official Website : www.niimbot.com Manufacturer’s Address : No. 5, Creative Workshop, Creative World, Yezhihu West Road,Hondshan District,Wuhan, China
© 2023 NIIMBOT. All Rights Reserved. NIIMBOT is a brand under Wuhan Jingchen Intelligent ldentification Technology Ltd.

NIIMBOT K3_W

Safety Instructions
Before operating and using the printer, please carefully read the following precautions to prevent personal injury or equipment damage.
Precautions
Place this product on a flat and stable surface for use. If you notice any unusual odors, heat, smoke, discoloration, deformation, or any other abnormalities while using this product, unplug the power cord immediately and stop using it. Do not disassemble this product. For inspection, adjustment, and maintenance, please contact customer support. Do not drop, strike, or handle this product improperly. Do not allow water to splash onto the printer. Before cleaning this product, ensure that the power is turned off and unplug the power cord from the socket to prevent electrical shock or fire. Do not use paint thinner, benzene, alcohol, or any other organic solvents to clean this product, as it may damage the surface finish. Use a soft, dry cloth to clean this product. Use NIIMBOT official original labels. This product warranty does not cover any malfunctions or damage caused by using third-party labels. Do not expose label rolls to environments of direct sunlight, high temperatures, high humidity, or dust. Please store them in a cool place.
Safety Warning
The print head is a heated component and can become very hot during and immediately after printing. Do not touch the print head or its surrounding parts to avoid burns.

01 · 02
Avoid touching the print head and connection plugs to prevent potential damage from electrostatic discharge. The paper tearing device has sharp cutting edges. Refrain from using your fingers or other body parts to touch the paper tearing device to prevent cuts.
Special Notes
Please purchase our product models designed for specific your country or region through the official NIIMBOT store or NIIMBOT authorized channels. Purchasing a NIIMBOT product through an unauthorized source may expose you to piracy risks, compatibility issues with your local environment, or other factors that could affect the product’s proper functionality. Additionally, NIIMBOT may not be able to provide support for issues related to products obtained through unauthorized channels.

01
Product Instruction
Thank you for selecting and using the NIIMBOT K3_W Smart Label Printer. This printer uses thermal printing, requiring no ink or toner. Your only ongoing expense will be label paper. Count on us for long-term reliable label printing and excellent post-sales support. Please take a moment to read the user manual for usage and maintenance instructions.
01-1 Package Contents

Smart Label Printer *1

Label Paper Roll *1

Product Manual *1

USB Cable *1

Power cord *1 (may vary in different countries or regions)

Power components*1

01-2 Product Function Description Paper Compartment Cover Button

03 · 04

Paper Feed Button Paper Exit
Power Switch

Power Socket

USB Type-B Port

Sensor

Paper Blade Print Head

Label Paper Holder

Label Paper Guide

Print Roller Lock Printing (Drive) Roller

Bracket Block (Mainly used for rear express single use)

01-3 Button Function Description

Name Power Button

Operation Toggle

Function Description Power On/Off

Open Compartment Button OPEN

Press

Paper Feed Button

Short Press Long Press Double Click

Open Paper Compartment Cover
Standby: Feed One Sheet Printing: Cancel Printing Standby: Paper Type Calibration Standby: Print Self-Test Page

01-4 Indicator Light Description

Indicator Light

Status

–

Off

Blue

Always On

Blue

Blinking

Green

Always On

Green

Blinking Slowly

Green

Blinking Fast

Red

Always On

White

Always On

Status Description Powered Off. Powered on, but not connected. Firmware upgrading. Printer connected. Printer connected. Printing An issue has occurred; refer to the “Troubleshooting” Section. Printer connected to Wi-Fi.

05 · 06
02
Installation and Usage
02-1 Power Connection 1 Make sure the printer’s power switch is in the “Off” (O) position. 2 Connect the power cord to the DC power port on the printer. 3 Plug the other end of the power cord into a suitable AC power outlet. 4 If the AC power outlet is live, the power indicator light will turn blue.
Attention 1. Please use the official NIIMBOT power adapter to avoid product damage
or potential hazards. 2. If the printer will not be used for an extended period, unplug the power
cord from the printer.

02-2 Label Paper Installation

Paper Compartment Cover Button Paper Feed Button

1 Facing the front of the device, press the open compartment button to lift the popped-up paper compartment cover upwards.
Attention: Do not touch the paper blade with your fingers to avoid injury!

Paper Blade Label Paper Holder

Print Side
Please insert both ends of the label paper onto the raised circular axis of the holder.
Print (Drive) Roller

07 · 08
2 Open the label paper spool holder, adjust the label paper’s orientation so that the print side is facing up when passing through the print (drive) roller. Use your hand to pull the label paper guide open, place the label roll on the label paper spool holder, and release the guide to ensure the label roll can rotate freely. Attention: Do not place the label roll at the bottom of the paper compartment.
Label Paper Guide
3 Thread the label paper through the label paper guide.
4 Close the printer’s paper compartment cover, press it down, and listen for a “click” sound, indicating that the paper compartment cover is locked.

Attention: 1. Failure to thread the label paper through the label paper guide may
result in offset printing. 2. If the label paper is not pulled out of the printer, it may cause paper
feed issues and printing malfunction.
02-3 Software Download 01.Download the “NIIMBOT” Desktop Version You can download and install “NIIMBOT” Desktop version from our official website (www.niimbot.com).
Note: If you need to connect the device to your computer, please use the official-provided data cable or a data cable that supports data transfer.
02.Download the NIIMBOT APP Before using the printer, please install the NIIMBOT app from Google Play or the App Store.
NIIMBOT
Design & Print APP easy to download and use
More information available on the NIIMBOT app. Sign in to NIIMBOT Me Help Center Hardware

09 · 10
02-4 Communication Connection
01.USB Connection 1 This printer supports the following communication interface standard:
Type-B cable. 2 Installation Steps:

1. Turn off the printer (O). 2) Connect the USB data cable to the USB port on the back of the printer
   and then connect it to the printer. 3) Turn on the printer.
   02.Bluetooth Connection 1 Press the power button to turn on the printer. 2 Open the “NIIMBOT” APP. 3 Select the printer and follow the on-screen instructions to connect.
   03.WiFi Connection 1 Mobile Device WiFi Connection
2. Turn on the printer. 2) Open the “NIIMBOT” APP. 3) Follow the on-screen instructions to connect. 2 Computer Network Setup 1) Turn on the printer. 2) Connect the printer using a USB data cable. 3) Open the “NIIMBOT” computer application. 4) Follow the on-screen instructions to connect.

03
Windows Driver Installation
03-1 Driver Download Visit the official NIIMBOT website (www.niimbot.com) – Download Center Third-Party Driver Download page to download the driver installation file.
03-2 Driver Installation 1 Choose your printer.

2 Select USB as the connection method.

11 · 12

3 When you connect your computer to the printer, the USB port will be automatically detected.

4 The installation is complete.

13 · 14
04
Printer Maintenance
Regular maintenance is essential to keep your printer functioning and producing high-quality labels.
Attention: Before cleaning the printer, make sure to turn off the power and unplug it.
04-1 External Cleaning Use a soft, dry cloth to wipe off dust and stains from the main unit. For stubborn stains, lightly dampen the cloth with water.
Attention: Do not use paint thinner, benzene, alcohol, or any other organic solvents, as they may cause deformation or damage to the printer’s casing.
04-2 Cleaning the Print Head 1 Make sure to turn off the printer before cleaning. 2 Use a cleaning pen to wipe the black area of the print head. Wipe from the
center towards the outer edges to remove adhesive transferred from the print head’s edges to the outside of the label paper path. 3 After cleaning, let the printer dry for one minute before closing the cover. Caution: The print head generates high temperatures during printing. To prevent damage to the print head and the risk of personal injury, do not touch the print head.

ESD Warning: Follow anti-static precautions when handling the print head and electronic components under the cover to prevent damage from static discharge.

Sensor

Print Head

Print Roller Lock Print (Drive) Roller
04-3 Sensor Cleaning 1 Dust can accumulate on the sensors; gently brush it away. Use a dry cotton
swab or one dipped in alcohol to remove any adhesive or residues if necessary. 2 Use a dry cotton swab to remove remaining residues. 3 Repeat steps 1 and 2 as needed until all residues and dirt are gone. 4 After cleaning, let the printer dry for one minute, then close the cover or
load labels.

15 · 16
04-4 Print Roller Cleaning and Replacement 1 Open the cover and remove the label paper. 2 Pull the print roller bearings on the left and right sides of the front of the
printer towards you, release the wings, and rotate them upward.
3 Lift the print roller out of the printer’s bottom bracket.
4 Clean the print roller with an alcohol-dipped swab or a lint-free cloth, moving from the center outwards. Repeat as needed until the roller is clean. For stubborn substances or label blockages, use a new swab for thorough cleaning.

5 Place the print roller back into the printer’s bottom bracket.
6 Release the wing of the left and right print roller bearings, rotate them downward to the back of the printer, and secure them in place.
7 Let the printer dry for a minute, then close the cover or load labels.

17 · 18

05
Troubleshooting

01.Indicator Light Red Steady

Possible Cause

Solution

Cover not closed

Check and close the cover.

No labels

Insert label paper; refer to label paper installation.

Label paper not pulled out of Pull out the label paper from the compartment

the paper compartment

and close the compartment cover.

Print head temperature too high

Stop printing and resume printing after the print head has cooled down.

Printing error

Follow the prompts on the application.

02.Follow the prompts on the application.

Possible Cause
Printer not powered on
Device connections have exceeded the limit
Bluetooth is not enabled on your phone

Solution Connect the power and turn on the power button. Device connections have exceeded the limit.
Bluetooth is not enabled on your phone.

03.USB cannot detect the printer

Possible Cause

Solution

Printer not powered on Connect the power and turn on the power button.

USB Cable not connected Refer to the “USB Connection” Section.

04.WiFi cannot detect the printer

Possible Cause

Solution

Printer not powered on

Connect the power and turn on the power button.

Incorrect printer model

WiFi functionality is limited to K3_W only.

Printer is not connected to the network

Refer to the “WiFi Connection” Section.

Printer and the application are not Ensure that the printer and the application in the same local area network are on the same local area network.

05.Printer Doesn’t Print or Stops Printing

Possible Cause

Solution

Printer not powered on

If the printer status light is not on, check and ensure the power cable is properly connected.

Paper feed issue Refer to “Paper Feed Issues with Label Paper”.

USB cable is loose
Bluetooth disconnected
WiFi disconnected

Make sure the USB cable at the back of the printer or the computer is not loose
Make sure that the Bluetooth connection between the application and the printer is working properly.
Make sure that the WiFi connection between the application and the printer is working properly

19 · 20

06.Unclear Printing

Possible Cause

Solution

Incorrect print density setting
Dirty print head
Dirty or damaged print roller

Adjust the print density.
Refer to the “Cleaning the Print Head” Section and clean the print head Clean or replace the print roller; refer to print roller cleaning and replacement. To purchase consumables, contact the customer service.

Worn-out print head Please contact customer service to replace the print head.

Non-official NIIMBOT label paper

This device has RFID reading functionality. If the RFID antenna of the device fails to recognize the information on the label paper, it may result in unclear printing.

07.No print content on the label

Possible Cause
Non-thermal label paper
Incorrect label paper installation

Solution
Please use thermal label paper. The print surface of the label paper must face up towards the print head; refer to label paper installation for guidance.

08.Paper Feed Issues with Label Paper

Possible Cause

Solution

Incorrect label paper installation
Paper Jam

Incorrect label paper installation.
Open the cover, pull out the jammed paper from the print rollers, and reposition it.

Out of label paper Please replace the label paper.

Incorrect label type setting

Ensure the label paper type selected in the application matches the actual label type.

06
Product Specifications

Specification Items

Dimensions Size
Weight

Print Method

Resolution

Print Speed
Printing Effective Printing Width

Print Length

Print Head Lifespan

Bluetooth

Connection

USB

WiFi

Power

Adapter Types

Consumable

Width Length

Thickness

NIIMBOT K3_W 232145148mm
1.2KG Thermal 203dpi Max 180mm/s 80mm 15mm-300mm
80km Support USB Type-B Support 2.4G 24V /2.5A Die-Cut Labels 20mm – 82mm 15mm – 300mm 0.08mm – 0.20mm

21 · 22

Specification Items
Paper Roller Consumable Inner Diameter
Core Inner Diameter

NIIMBOT K3_W max 105mm
25.4mm 40mm

Programming Languages

Software

Label Design Drive

Built-in Fonts

Barcodes

1D 2D

CPCL/NIIMBOT Protocol
NIIMBOT(APP & PC)
Win7 /10/11
Chinese GB18030 16×16 dot matrix, 24×24 dot matrix English ASCII 8×16 dot matrix, 12×24 dot matrix UPC-AUPC-CEAN13EAN8code 39 code 93I2OF5code 128codabar
PDF-417QR code

HumanMachine Interaction

Power Switch Boat-Type Power Switch

Button

Paper Feed Button

Indicator Lights Red/Green/Blue/white

Environmental Parameters

Working Storage

0°C to 40°C, 10% to 85%, non-condensing -10 to -60, 10% to 90%, non-condensing

07
Label Paper

It is recommended to use official, genuine consumables from NIIMBOT for consistent high-quality printing results. Specially designed label products can enhance the printer’s performance and prevent premature wear and tear of the print head.

01.Confirming Label Material 1 For regular thermal label paper, you can use your fingernail or a pen cap to
scratch the printing surface. 2 NIIMBOT’s official, genuine thermal label paper enhances durability and
water resistance; it requires a lighter or heat source for baking. 3 Check if there are black marks on the label paper.
1. If black markings appear on the medium, the label material is thermal sensitive, which this printer supports.
2. If black markings do not appear on the medium, the label material is thermal transfer, and it requires the use of a ribbon. This printer does not support this type.

02.Label Types

Label Types Paper Feed Types

Description

Gap

Each label is separated by a gap.

Non-Continuous Black Mark Rolled Label
Transparent

The separation of labels is indicated by a pre-printed black mark on the back of the label.
Labels are made of transparent material, separated by gaps.

23 · 24
08
Related Statements
FCC Statement This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
Any changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment.
NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications.
However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception,which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:
— Reorient or relocate the receiving antenna.
— Increase the separation between the equipment and receiver.

— Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
— Consult the dealer or an experienced radio/TV technician for help. The device has been evaluated to meet general RF exposure requirement.The device shall be installed and operated with minimum distance 20cm between the radiator & body.
Declaration of conformity Hereby, Wuhan Jingchen Intelligent Identifification Technology Co., Ltd. declares that this device is in compliance with the essential requirements and other relevant provisions of Radio Equipment Directive (RED) 2014/53/EU. This product can be used across EU member states. This device can be used in European Union. Hereby, [Wuhan Jingchen Intelligent Identifification Technology Co., Ltd.] declares that the radio equipment type [NIIMBOT K3_W] is in compliance with Directive 2014/53/EU. The full text of the EU declaration of conformity is available at the following internet address:http://www.niimbot.com.

25 · 26

References

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