Update VERSION to v6.2.10

New features
Revision of the documentation
Fix bug

README.md

@@ -61,6 +61,10 @@ The software also includes a configurable printer dictionary, which can be easil
 
     - Import and export printer configuration datasets in various formats: epson_print_conf pickle, Reinkpy XML, Reinkpy TOML.
 
+    - Interactive Console (API Playground).
+    
+      The application includes an integrated Interactive Console. It allows Python developers to interact with the application's runtime environment, evaluate expressions, test APIs, and inspect variables. This console acts as a live API Playground, ideal for debugging, printer configuration testing and rapid prototyping.
+
     - Access various administrative and debugging options.
 
 - __Available Interfaces__:
@@ -80,6 +84,8 @@ cd epson_print_conf
 pip install -r requirements.txt
 ```
 
+On Linux, you might also install the tkinter module: `sudo apt install python3-tk`.
+
 This program exploits [pysnmp v7+](https://github.com/lextudio/pysnmp) and [pysnmp-sync-adapter](https://github.com/Ircama/pysnmp-sync-adapter).
 
 It is tested with Ubuntu / Windows Subsystem for Linux, Windows.
@@ -673,7 +679,7 @@ To return the value of the OID query: `self.fetch_oid_values(oid)[0][1]`.
 
 Open the *epson_print_conf* application, set printer model and IP address, test printer connection. Then: Settings > Debug Shell.
 
-The following are examples of instructions to test the END4 commands:
+The following are examples of instructions to test the EPSON-CTRL commands:
 
 ```python
 # cs
@@ -734,7 +740,47 @@ for i in ec_sequences:
 
 Comprehensive, unified documentation for Epson’s Remote Mode commands does not exist: support varies by model, and command references are scattered across service manuals, programming guides and third-party sources (for example, the [Developer's Guide to Gutenprint](https://gimp-print.sourceforge.io/reference-html/x952.html) or [GIMP-Print - ESC/P2 Remote Mode Commands](http://osr507doc.xinuos.com/en/OSAdminG/OSAdminG_gimp/manual-html/gimpprint_37.html)).
 
-Check `self.printer.check_nozzles()` and `self.printer.clean_nozzles(0)` for examples of usage of remote commands.
+The `EpsonLpr` class is used for sending Epson LPR commands over a RAW, unidirectional TCP connection on port 9100. This channel does not support receiving responses from the printer.
+
+| **Method**              | **Description**                                                                                                                  |
+| ----------------------- | -------------------------------------------------------------------------------------------------------------------------------- |
+| `connect`               | Opens a TCP socket connection to the printer at the specified host and port, with timeout.                                       |
+| `disconnect`            | Gracefully shuts down and closes the socket connection if open.                                                                  |
+| `send(data)`            | Sends raw `bytes` directly to the printer over the socket connection.                                                            |
+| `remote_cmd(cmd, args)` | Constructs a Remote Mode command: 2-byte ASCII command + 2-byte little-endian length + arguments.                                |
+
+Predefined remote mode commands in this class:
+
+| **Command**           | **Description**                                         |
+| --------------------- | ------------------------------------------------------- |
+| `LF`                  | Line Feed (new line).                                   |
+| `FF`                  | Form Feed; flushes the buffer / ejects the page.        |
+| `EXIT_PACKET_MODE`    | Exits IEEE 1284.4 (D4) packet mode.                     |
+| `INITIALIZE_PRINTER`  | Resets printer to default state (ESC @).                |
+| `REMOTE_MODE`         | Enter Epson Remote Command mode.                        |
+| `ENTER_REMOTE_MODE`   | Initialize printer and enter Epson Remote Command mode. |
+| `EXIT_REMOTE_MODE`    | Exits Remote Mode.                                      |
+| `JOB_START`           | Begins a print job (JS).                                |
+| `JOB_END`             | Ends a print job (JE).                                  |
+| `PRINT_NOZZLE_CHECK`  | Triggers a nozzle check print pattern (NC).             |
+| `VERSION_INFORMATION` | Requests firmware or printer version info (VI).         |
+| `LD`                  | (unknown).  |
+
+Check `self.printer.check_nozzles()` and `self.printer.clean_nozzles(0)` for examples of usage. The following code prints the nozzle-check print pattern (copy and paste the code to the Interactive Console after selecting a printer and related host address):
+
+```python
+from epson_print_conf import EpsonLpr
+lpr = EpsonLpr(self.printer.hostname)
+data = (
+    lpr.EXIT_PACKET_MODE +    # Exit packet mode
+    lpr.ENTER_REMOTE_MODE +   # Engage remote mode commands
+    lpr.PRINT_NOZZLE_CHECK +  # Issue nozzle-check print pattern
+    lpr.EXIT_REMOTE_MODE +    # Disengage remote control
+    lpr.JOB_END               # Mark maintenance job complete
+)
+print(f"\nDump of data:\n{self.printer.hexdump(data)}\n")
+lpr.connect().send(data).disconnect()
+```
 
 ## ST2 Status Reply Codes
 

epson_print_conf.py

@@ -76,6 +76,7 @@ class EpsonLpr:
         self.sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
         self.sock.settimeout(self.timeout)
         self.sock.connect((self.hostname, self.port))
+        return self
 
     def disconnect(self) -> None:
         """Shutdown and close the socket."""
@@ -86,12 +87,14 @@ class EpsonLpr:
                 pass
             self.sock.close()
             self.sock = None
+        return self
 
     def send(self, data: bytes) -> None:
         """Send raw bytes to the printer."""
         if not self.sock:
             raise RuntimeError("Not connected to printer")
         self.sock.sendall(data)
+        return self
 
     def remote_cmd(self, cmd, args):
         "Generate a Remote Mode command."
@@ -1137,6 +1140,46 @@ class EpsonPrinter:
         """
         return(filter(lambda x: x.startswith("get_"), dir(self)))
 
+    def hexdump(self, data: Union[bytes, bytearray], width: int = 16) -> str:
+        """
+        Produce a hex + ASCII dump of the given data.
+
+        Each line shows:
+          - 8-digit hex offset
+          - hex bytes (grouped by width, with extra space every 8 bytes)
+          - printable ASCII (non-printables as '.')
+
+        :param data: Bytes to dump.
+        :param width: Number of bytes per line (default: 16).
+        :return: The formatted hexdump.
+        """
+        lines = []
+        for offset in range(0, len(data), width):
+            chunk = data[offset : offset + width]
+
+            # Hex part, with a space every byte and extra gap at half‑width
+            hex_bytes = ' '.join(f"{b:02X}" for b in chunk)
+            half = width // 2
+            if len(chunk) > half:
+                # insert extra space between halves
+                parts = hex_bytes.split(' ')
+                hex_bytes = (
+                    ' '.join(parts[:half]) + '  ' + ' '.join(parts[half:])
+                )
+
+            # Pad hex part so ASCII column aligns
+            expected_len = width * 2 + (width - 1) + 2  # bytes*2 hex + spaces + extra half‑split
+            hex_part = hex_bytes.ljust(expected_len)
+
+            # ASCII part: printable or '.'
+            ascii_part = (
+                ''.join(chr(b) if 32 <= b < 127 else '.' for b in chunk)
+            )
+
+            lines.append(f"{offset:08X}  {hex_part}  {ascii_part}")
+
+        return "\n".join(lines)
+
     def expand_printer_conf(self, conf):
         """
         Expand "alias" and "same-as" of a printer database for all printers

requirements.txt

@@ -1,8 +1,8 @@
 pyyaml
 pysnmp>=7.1.20
-pysnmp_sync_adapter>=1.0.6
+pysnmp_sync_adapter>=1.0.8
 tkcalendar
 pyperclip
 black
 tomli
-text-console>=2.0.0
+text-console>=2.0.2

ui.py

@@ -37,7 +37,7 @@ from find_printers import PrinterScanner
 from text_console import TextConsole
 
 
-VERSION = "6.2.0"
+VERSION = "6.2.10"
 
 NO_CONF_ERROR = (
     " Please select a printer model and a valid IP address,"
@@ -55,7 +55,9 @@ CONFIRM_MESSAGE = (
 
 class EpcTextConsole(TextConsole):
 
-    show_about_message = "epson_print_conf Debug Console."
+    show_about_message = (
+        "Epson Printer Configuration Interactive Console (API Playground)."
+    )
 
     def show_help(self):
         """Open a separate window with help text."""
@@ -67,13 +69,15 @@ class EpcTextConsole(TextConsole):
         scrollbar = tk.Scrollbar(help_window)
         scrollbar.pack(side="right", fill="y")
 
-        help_text = tk.Text(help_window, wrap="word", yscrollcommand=scrollbar.set)
+        help_text = tk.Text(
+            help_window, wrap="word", yscrollcommand=scrollbar.set
+        )
         help_text.tag_configure("title", foreground="purple")
         help_text.tag_configure("section", foreground="blue")
 
         help_text.insert(
             tk.END,
-            'Welcome to the epson_print_conf Debug Console\n\n',
+            f'Welcome to the {self.show_about_message}\n\n',
             "title"
         )
         help_text.insert(
@@ -98,7 +102,7 @@ class EpcTextConsole(TextConsole):
         help_text.insert(
             tk.END,
             (
-                "- F7: Open the debug console.\n\n"
+                "- F7: Open the Interactive Console (API Playground).\n\n"
             )
         )
         help_text.insert(
@@ -370,8 +374,8 @@ class EpsonPrinterUI(tk.Tk):
         help_menu.add_command(label="Clear printer list", command=self.clear_printer_list)
         help_menu.entryconfig("Clear printer list", accelerator="F6")
 
-        help_menu.add_command(label="Debug shell", command=self.tk_console)
+        help_menu.add_command(label="Interactive Console (API Playground)", command=self.tk_console)
-        help_menu.entryconfig("Debug shell", accelerator="F7")
+        help_menu.entryconfig("Interactive Console (API Playground)", accelerator="F7")
 
         help_menu.add_command(label="Remove selected printer configuration", command=self.remove_printer_conf)
         help_menu.entryconfig("Remove selected printer configuration", accelerator="F8")
@@ -1186,7 +1190,9 @@ class EpsonPrinterUI(tk.Tk):
             return
 
         self._console_window = tk.Toplevel(self)
-        self._console_window.title("Debug Console")
+        self._console_window.title(
+            "Epson Printer Configuration Interactive Console (API Playground)"
+        )
         self._console_window.geometry("800x400")
 
         console = EpcTextConsole(self, self._console_window)
@@ -3596,7 +3602,7 @@ def main():
     import pickle
 
     parser = argparse.ArgumentParser(
-        epilog='epson_print_conf GUI'
+        epilog='Epson Printer Configuration GUI'
     )
     parser.add_argument(
         '-m',