Irfora POS-5890K 58mm USB Thermal Receipt Printer User Manual

Introduction

This manual provides detailed instructions for the setup, operation, maintenance, and troubleshooting of your Irfora POS-5890K 58mm USB Thermal Receipt Printer. Please read this manual carefully before using the printer to ensure proper functionality and longevity.

Package Contents

Verify that all items are present in the package:

1 x Irfora POS-5890K Thermal Printer
1 x Thermal Paper Roll
1 x Power Adapter (Charging Cable)
1 x USB Cable
1 x User Manual (English)

Setup

1. Connecting the Printer

Before connecting, ensure the printer is powered off.

Connect Power: Insert the power adapter cable into the DC 12V/3A power port on the back of the printer. Plug the other end into a suitable power outlet.
Connect USB: Connect one end of the provided USB cable to the USB port on the printer and the other end to an available USB port on your computer.
Connect Cash Drawer (Optional): If using a cash drawer, connect its cable to the DC 12V/1A cash drawer port on the printer.

Rear view of Irfora POS-5890K printer showing power, USB, and cash drawer ports

Image: Rear view of the printer, highlighting the power, USB, and cash drawer connection ports.

2. Loading Thermal Paper

When loading paper, ensure the printer is powered off.

Open the Cover: Press the cover open button (usually located on the side or front) to open the top cover of the printer.
Insert Paper Roll: Place the 58mm thermal paper roll into the paper compartment with the printing surface facing upwards. Ensure the roll is seated correctly.
Close the Cover: Pull a small amount of paper out past the cutter and close the top cover firmly until it clicks into place.

Top view of Irfora POS-5890K printer with lid open, showing paper roll compartment

Image: The printer with its top cover open, revealing the compartment for loading the thermal paper roll.

3. Driver Installation

To enable communication between your computer and the printer, you must install the appropriate drivers.

Download Drivers: Visit the official website to download the latest drivers: www.cnfujun.com/d/38
Operating System Compatibility: Drivers are available for Windows 9X / 2000 / 2003 / XP / Vista / 7 / 8 and Linux.
Installation: Follow the on-screen instructions provided by the driver installer. Typically, this involves running an executable file and selecting your printer model.

Operating Instructions

1. Powering On/Off

Press the power button located on the front of the printer to turn it on or off. The status indicator lights will illuminate when the printer is powered on.

Front view of Irfora POS-5890K printer showing power button and status indicators

Image: Front view of the printer, displaying the power switch and LED status indicators.

2. Printing a Receipt

Once the drivers are installed and the printer is connected and powered on, you can print from your application (e.g., POS software, word processor).

Open the document or application from which you wish to print.
Select the "Print" option (usually found under "File" menu).
Choose "Irfora POS-5890K" or the installed printer name from the list of available printers.
Adjust any print settings as needed (e.g., paper size, orientation).
Click "Print" to send the job to the printer.

Irfora POS-5890K printer actively printing a receipt

Image: The thermal printer in operation, with a receipt being printed and emerging from the paper exit slot.

Maintenance

1. Cleaning the Printer Head

Regular cleaning helps maintain print quality and extends the life of the printer head.

Turn off the printer and disconnect the power cable.
Open the top cover.
Gently wipe the thermal print head (the dark strip inside the cover) with a soft cloth dampened with isopropyl alcohol.
Allow the print head to dry completely before closing the cover and reconnecting power.

2. Replacing Thermal Paper

When the paper roll is depleted, follow the steps outlined in the "Loading Thermal Paper" section under Setup to replace it with a new 58mm thermal paper roll.

Troubleshooting

Problem	Possible Cause	Solution
Printer does not power on.	Power cable not connected or power outlet faulty.	Check power cable connection. Try a different power outlet.
No print output.	Paper loaded incorrectly or depleted. Drivers not installed or incorrect. USB cable disconnected. Printer not selected in software.	Reload paper correctly or replace roll. Install or reinstall drivers from www.cnfujun.com/d/38. Ensure USB cable is securely connected. Select the correct printer in your application's print dialog.
Poor print quality.	Dirty print head. Low quality thermal paper. Paper loaded incorrectly.	Clean the print head as described in the Maintenance section. Use high-quality 58mm thermal paper. Ensure paper is loaded with the printing side facing the print head.
Cash drawer does not open.	Cash drawer cable disconnected. Incorrect settings in POS software.	Check cash drawer cable connection to the printer. Verify cash drawer settings in your POS application.

Specifications

Feature	Detail
Model	POS-5890K
Print Method	Direct Thermal
Print Speed	90mm/sec (Max)
Print Width	57.5 ± 0.5mm
Paper Roll Diameter	50mm (Max)
Paper Thickness	0.06-0.08mm
Reliability Print Life	100km
Print Font Size	384dot/line; ANK Character Font A: 12 * 24 dots, 1.5(W) * 3.0(H)mm
Printer Character	GB one/two Chin Character 24 * 24dots, supports Taiwan, Hong Kong Traditional
Print Command	Compatible with ESC/POS command
Interface	USB Port
Drivers	Windows 9X / 2000 / 2003 / XP / Vista / 7 / 8, Linux
Power Input	100-240V
Power Output	DC 12V/3A
Cash Drawer Output	DC 12V/1A
Item Dimensions	17.5 * 13 * 10.8cm / 6.9 * 5.1 * 4.3in
Item Weight	548.5g / 19.4oz

Diagram showing the dimensions of the Irfora POS-5890K printer

Image: A diagram illustrating the physical dimensions (length, width, height) of the printer.

Support

For driver downloads and further technical assistance, please visit:

www.cnfujun.com/d/38

Please refer to the troubleshooting section for common issues before contacting support.

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Irfora POS-5890K