# BluPrints Printer -- ViruKiosk USB Testing & Troubleshooting Guide

# Overview

This document covers the USB connection, printer detection, printing, test cases, and troubleshooting procedure for the **BluPrints printer** connected to a VirtuKiosk Android device.

The purpose of this guide is to:

- Verify that the printer is detected correctly.
- Identify USB connection problems.
- Reproduce the intermittent printer-disconnection issue.
- Provide a simple recovery procedure.
- Help anyone troubleshoot and resolve the printer connection issue.

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# Printer Information

| Item | Value |
|---|---|
| Printer | **BluPrints** |
| Manufacturer | **AMSPL** |
| USB VID | **0416** |
| USB PID | **5011** |
| USB Type | USB Printer |

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# Test Cases

| Test Case ID | Test Case | Steps / Scenario | Expected Result | Actual Result | Status |
|---|---|---|---|---|---|
| **T01** | Normal Printer Connection | Turn ON Kiosk → Turn ON Printer → Connect USB cable | BluPrints should be detected | BluPrints detected successfully | **PASS** |
| **T02** | Printer Power Cycle | Keep USB connected → Turn Printer OFF → Wait → Turn Printer ON | Printer should reconnect automatically | Printer re-enumerated successfully | **PASS** |
| **T03** | Kiosk Reboot With Printer Connected | Keep Printer ON + USB connected → Reboot Kiosk | Printer should be detected after Android boots | BluPrints detected successfully | **PASS** |
| **T04** | USB Disconnect/Reconnect While Printer Remains ON | Disconnect USB → Reconnect USB without turning OFF printer | Printer should be detected again | USB enumeration failed with `error -71` | **FAIL** |
| **T05** | Printer-Side USB Disconnect/Reconnect | Disconnect USB from printer side → Reconnect while printer remains ON | Printer should be detected | USB enumeration failed with `error -71` | **FAIL** |
| **T06** | Printer Power Reset + USB Reconnect | Printer OFF → Remove USB → Printer ON → Reconnect USB | Printer should be detected | BluPrints detected successfully | **PASS** |
| **T07** | Printer Startup Wait – 15 Seconds | Printer OFF → Remove USB → Printer ON → Wait 15 sec → Connect USB | Printer should be detected | BluPrints detected successfully | **PASS** |
| **T08** | Printer Fully ON Before USB Connection | Printer ON → Wait 30 sec → Connect USB | Printer should be detected | BluPrints detected successfully | **PASS** |
| **T09** | Kiosk Cold Power Cycle | Printer ON + USB connected → Turn Kiosk OFF → Turn Kiosk ON | Printer should be detected after boot | BluPrints detected successfully | **PASS** |
| **T10** | VirtuKiosk Application Restart | Printer connected → Close VirtuKiosk → Reopen VirtuKiosk | Application should detect already-connected printer | BluPrints detected successfully | **PASS** |
| **T11** | Actual Printing | Connect printer → Open VirtuKiosk → Click printer button → Print test value | Printer should print successfully | Test value printed successfully | **PASS** |
| **T12** | USB Disconnect/Reconnect While VirtuKiosk Is Running | Keep VirtuKiosk open → Disconnect USB → Reconnect USB | Printer should reconnect | USB enumeration failed with `error -71` | **FAIL** |
| **T13** | Replacement USB Data Cable | Replace USB data cable → Repeat printer connection test | Printer should connect if original cable is faulty | Same failure pattern occurred | **FAIL** |
| **T14** | Printer Disconnect Recovery Procedure | Remove USB cable from both sides → Printer OFF → Printer ON → Wait 10 sec → Reconnect USB | Printer should reconnect | BluPrints connected successfully | **PASS** |

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# Normal Printer Connection

Follow these steps when connecting the printer normally.

### Steps

1. Turn **ON the Kiosk**.
2. Turn **ON the printer**.
3. Wait until the printer is fully powered.
4. Connect the USB/data cable to the **printer**.
5. Connect the other end of the USB/data cable to the **Kiosk**.
6. Wait approximately **5–10 seconds**.
7. Open/check **VirtuKiosk**.
8. Verify that **BluPrints / Printer Connected** is displayed.
9. Perform a test print.

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# Main Failure

The main failure observed during testing occurs when the printer is **powered ON** and the USB/data cable is disconnected and reconnected while the Kiosk remains powered ON.

## Failure Scenario

1. Kiosk ON.
2. Printer ON.
3. VirtuKiosk Running.
4. USB Connected.
5. Disconnect USB Cable.
6. Reconnect USB Cable.
7. Printer is not Connectd.

## How to Fix 

1. Remove USB Cable (connection between Kiosk and Printer) .
2. Turn Off Printer (wait 5-10 second).
3. Turn On printer (wait 5-10 second).
4. Reconnect USB (wait untill kiosk connect with USB printer).
5. Now check VirtuKiosk.
6. Perform Test print.

#### Notes
 - In case of any failure, follow the guidelines above to reconnect the printer.