> For the complete documentation index, see [llms.txt](https://commanderhelp.verifone.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://commanderhelp.verifone.com/general-help-guides/general-help/pos-troubleshooting-guide-for-circle-k-ck-helpdesk/scanner-is-not-working.md).

# Scanner is Not Working

#### Use this when the barcode scanner doesn’t scan items.

The scanner light doesn’t turn on, barcodes don’t register on the POS, or the scanner beeps but nothing appears on screen.

*This is usually a loose cable, a wrong port setting, or the scanner needs to be reprogrammed.*

<details>

<summary>Keywords</summary>

**Also called:** barcode scanner broken, scanner not reading, scanner offline, scanner not beeping, scanner won’t scan, scanner not showing products on POS

**Keywords:** scanner not working, barcode not scanning, scanner cable, scanner configuration, RubyReady, 2D scanner, MSC splitter, All Points Interface, baud rate

</details>

### Symptoms

You may see one or more of the following:

* The scanner light doesn’t turn on when scanning.
* The scanner beeps but the item doesn’t appear on the POS screen.
* Barcodes don’t register at all.
* The scanner worked before but stopped after a cable change or POS restart.

Most likely cause: A loose cable, wrong port assignment, or the scanner needs reprogramming.

{% hint style="info" %}
After every step, scan a barcode to test.

✅ The item appears on the POS screen — stop here. The scanner is working.\
❌ Still not scanning — go to the next step.
{% endhint %}

### Before you start

* Identify the scanner model: **RubyReady** or **2D Scanner.**
* Check that the scanner cable is visible and accessible.

### How to fix the scanner

{% stepper %}
{% step %}

#### Check cables and connections

Check connection point:

* Scanner cable
* MSC splitter
* All Points Interface
* POS port

Unplug and reseat each connection firmly.
{% endstep %}

{% step %}

#### Reprogram the scanner

Go to    <kbd>CSR Functions</kbd> → <kbd>Maintenance Menu</kbd> → <kbd>Device Configuration</kbd> → <kbd>Scanner Configuration</kbd>

Select RubyReady or 2D Scanner, depending on the model.\
Reboot the register after saving the setting.
{% endstep %}

{% step %}

#### Check port assignment and baud rate

Confirm the scanner is assigned to the correct port and the communication settings (baud rate) match the scanner model.
{% endstep %}
{% endstepper %}

### Still not working? Contact the Helpdesk

If you’ve tried all the steps above and the issue isn’t fixed, contact the Helpdesk.

{% hint style="info" %}
N**eed assistance? Contact Verifone Helpdesk at anytime.**

* Use our **Chat** platform
* Or call **1.800.VERIFONE (837.4366)**

Tell us the troubleshooting steps you’ve already tried. This saves time and gets you the right support faster.
{% endhint %}

### FAQ

<details>

<summary>How do I know which scanner model I have?</summary>

Check the label on the scanner itself. RubyReady and 2D Scanner are the two common types. If you’re unsure, try both options in Scanner Configuration.

</details>

<details>

<summary>What is the MSC splitter?</summary>

The MSC splitter is a small box that connects the scanner cable to the POS. Make sure both ends are firmly plugged in.

</details>

<details>

<summary>What is the baud rate and why does it matter?</summary>

The baud rate is the speed at which the scanner talks to the POS. If it’s set wrong, the POS won’t understand the scanner’s signal.

</details>

### Related issues

* [Scanner has power, but doesn't scan](/scanner-help/scanner-help/scanner-has-power-but-wont-beep-or-scan.md)&#x20;


---

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