Skip to Content
  1. All products
  2. Miscellaneous
  3. PC Accessories
  4. Thermal Line Micro Embedded Printer DP-EH400 DAPPER 58mm
  5. PC Accessories
Pricelist: Default Pricelist
Pricelist: Default Pricelist

Thermal Line Micro Embedded Printer DP-EH400 DAPPER 58mm

The DAPPER DP-EH400 Thermal Line Micro Embedded Printer is a compact and reliable 58mm thermal printer designed for embedded systems and portable devices. It uses direct thermal printing technology, eliminating the need for ink or toner while delivering fast, quiet, and high-quality print results. This makes it ideal for applications that require quick receipt or ticket printing within small electronic systems.

Package Includes:

  • 1 × DP-EH400 Thermal Line Micro Embedded Printer
261.45 AED 261.45 AED (Tax included)

Add to cart
Terms and Conditions
30-day money-back guarantee
Shipping: 2-3 Business Days

 

The printer is commonly integrated into POS systems, portable instruments, medical devices, and industrial control equipment. Its small size and lightweight design allow easy installation into kiosks, handheld terminals, and embedded electronics. The printer supports serial communication interfaces and operates with low power consumption, making it suitable for battery-powered or embedded applications. With reliable paper feeding, clear print quality, and simple integration, the DP-EH400 embedded thermal printer provides an efficient solution for developers building compact printing systems.

 

Features:

  • Compact 58mm embedded thermal printer
  • Direct thermal printing technology (no ink required)
  • Fast and quiet printing operation
  • High reliability thermal print head
  • Supports serial communication interface
  • Low power consumption suitable for embedded systems
  • Compact design for easy integration into devices
  • Simple paper loading mechanism
  • Stable and durable printing performance

Print Fonts

  • ANK fonts 8x16 9x17 9x24 12x24
  • GBK fonts 16x16 and 24x24

Paper Specifications

  • Paper type Thermal paper
  • Paper width 57.5 mm
  • Paper thickness 60 to 85 micrometers
  • Maximum paper roll diameter 30 mm

Reliability

  • MCBF 5 million printed lines

Interface Options

  • RS232 and TTL
  • RS232 and USB
  • TTL and USB

Principle of Work:

The DP-EH400 printer operates using thermal printing technology. Inside the printer, a thermal print head contains a series of tiny heating elements arranged in a line. When printing is initiated, these elements heat specific points on the thermal paper.

The thermal paper contains a special heat-sensitive coating that turns dark when exposed to heat. As the paper moves across the print head, the heating elements activate in precise patterns to form characters, numbers, and graphics.

The printer receives data through a communication interface such as UART or TTL serial. A microcontroller or embedded system sends the print commands and data, which the printer processes and converts into printed output on the thermal paper.

Pinout of the Module:

Embedded Thermal Printer - TTL Serial - DFRobot

  • VCC: Power supply input
  • GND: Ground connection
  • TX: Transmit data pin (printer output)
  • RX: Receive data pin (printer input)
  • RTS: Request to send signal
  • CTS: Clear to send signal

Applications:

  • Point-of-sale (POS) receipt printing
  • Portable ticket printing systems
  • Medical diagnostic equipment
  • Industrial control systems
  • Embedded monitoring devices
  • Queue management systems
  • Portable measurement instruments

Circuit:

The DP-EH400 thermal printer connects to a microcontroller or embedded computer through a serial communication interface. The VCC and GND pins provide power to the printer, while the TX and RX pins handle data communication. Control pins such as RTS and CTS may be used for hardware flow control depending on the system design.

Connecting with Arduino First Time

Making Connections | Mini Thermal Receipt Printers | Adafruit Learning System

  • Connect the printer VCC pin to the external power supply recommended for the printer.
  • Connect the printer GND to Arduino GND.
  • Connect the printer RX pin to Arduino TX.
  • Connect the printer TX pin to Arduino RX (optional for status feedback).
  • Install the Thermal Printer library in Arduino IDE.
  • Upload the example code to test printing.

Code:

The following example demonstrates printing a simple message using an Arduino and a serial thermal printer.

Install the Library

TX_PIN 10

RX_PIN 11

#include <SoftwareSerial.h>
#include "Adafruit_Thermal.h"

#define TX_PIN 10
#define RX_PIN 11

SoftwareSerial mySerial(RX_PIN, TX_PIN);
Adafruit_Thermal printer(&mySerial);

void setup() {
  mySerial.begin(19200);
  printer.begin();

  printer.println("Hello from Arduino!");
  printer.println("Thermal Printer Test");
  printer.feed(3);
}

void loop() {

}

Technical Details:

  • Model: DP-EH400
  • Printing Method: Direct Thermal
  • Paper Width: 58 mm
  • Printing Speed: Up to 90 mm/s (typical)
  • Interface: Serial (TTL / UART)
  • Power Supply: External DC power
  • Application Type: Embedded printing systems

Resources:

Comparisons:

Compared with standard desktop thermal printers, embedded printers like the DP-EH400 offer advantages for compact device integration:

  1. Smaller Size: Designed specifically for embedded electronic systems.
  2. Lower Power Consumption: Suitable for portable and battery-powered devices.
  3. Simpler Integration: Easily controlled through UART or TTL serial communication.
  4. Compact Printing Mechanism: Ideal for handheld devices and kiosks.
  5. Ink-Free Printing: Uses thermal paper instead of cartridges or toner.