The older impact printer series (iDP-3540, iDP-3550) did not have web interfaces. However, if they have an optional network interface card (NIC):
For quick reference, bookmark this list:
| Printer Series | Username | Default Password | Reset Method |
| :--- | :--- | :--- | :--- |
| CT-S Series | administrator | administrator | Hold Feed + Pause at power-on |
| CMP Series | administrator | administrator | Remove battery + Hold Power + Feed |
| CLP Series | root | (blank) or pass | Hold Cancel at power-on |
| iDP Series (NIC) | admin | default | Jumper on NIC board |
| Wi-Fi Direct | N/A | 12345678 | Factory reset printer |
Unlike some manufacturers who use a single global password, Citizen has used several default credentials depending on the model series and firmware version. However, the vast majority of Citizen printers (including the CT-S2000, CT-S4000, CT-S651, and CL-S700 series) ship with one of the following default combinations: citizen printer default password
| Model Series | Default Username | Default Password |
| :--- | :--- | :--- |
| Legacy Models (pre-2015) | root | 123456 or password |
| CT-S Series (Receipt) | admin | admin |
| CL-S Series (Label/Barcode) | Administrator | (blank) or 1234 |
| CX Series (Kiosk/Photo) | admin | 0000 |
| Web Interface (All modern) | citizen | citizen |
Most common as of 2025: For the vast majority of Citizen printers with a built-in web server (Ethernet or Wi-Fi model), the default login is:
Username:
admin
Password:admin
If that fails, try Username: root with Password: root or a blank password.
Not all Citizen printers are created equal. Industrial label printers have different firmware architectures than POS receipt printers. Here is a breakdown by series.
While administrator / administrator works for 90% of modern network-enabled Citizen printers, some legacy models (pre-2010) or specific regional firmware versions use a blank password. The older impact printer series (iDP-3540, iDP-3550) did
This is the most common series in retail. The web interface (WebConfig) uses:
Citizen occasionally releases firmware patches that fix security vulnerabilities. Search for your model on the official Citizen Systems website. Warning: A firmware update may revert your password to default, so keep your new credentials handy.
In the modern office, the humble printer is often the most overlooked piece of networked equipment. We spend hours securing routers, servers, and workstations, yet the device sitting in the corner—the one that holds every sensitive document sent to it—frequently remains protected by a factory default password. For users of Citizen Systems printers (widely used in retail, healthcare, and hospitality for receipt, label, and barcode printing), understanding the Citizen printer default password is not just a technical footnote; it is a critical component of network security. Username: admin Password: admin