Make this my favourite Retro-Printer v4 Module (capture and convert centronics port data)

Listing type:
Fixed Price Multiple Items
Item Condition:
Seller location:
Stoke-on-Trent, Staffordshire, United Kingdom
Ending in:
This listing is closed (06/02/2019)

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Latest buyer:
m***3 (3)
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Shipping Costs:
From only £10.20
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Number Sold:
22 (View history)
Buyer Value Date and hour Quantity bought
m***3 (3) £75.00 31/01/2019  15:12:49 1
k***r (3) £75.00 21/01/2019  21:48:16 1
m***i (2) £75.00 21/01/2019  15:09:00 1
Z***5 (2) £75.00 19/01/2019  11:30:38 1
g***a (2) £75.00 18/01/2019  07:26:40 1
t***a (6) £75.00 12/01/2019  09:13:30 1
M***e (2) £75.00 01/01/2019  10:26:06 1
o***k (16) £75.00 17/11/2018  11:23:02 1
J***s (2) £75.00 15/11/2018  22:31:51 1
A***e (3) £75.00 15/11/2018  12:53:53 1
h***9 (7) £75.00 27/10/2018  21:47:49 1
D***V (3) £75.00 24/10/2018  10:35:28 1
m***o (2) £75.00 24/10/2018  00:25:52 1
j***c (2) £75.00 22/10/2018  10:39:31 1
d***m (7) £75.00 21/10/2018  11:47:45 1
t***s (2) £150.00 21/10/2018  10:40:24 2
A***n (13) £75.00 20/10/2018  17:56:06 1
v***t (4) £150.00 20/10/2018  15:54:15 2
l***n (7) £75.00 19/10/2018  19:30:06 1
p***n (43) £75.00 18/10/2018  20:48:44 1
Feedback on this Item
PositivePositive t***a (6) great deal, fast shipping, good seller, highly recommended 24/01/2019  12:39:01
PositivePositive A***n (13) Item received many thanks 19/01/2019  14:43:33

Item Number : 32773

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Retro-Printer v4 Module

This is the Retro-Printer Module from RWAP Software.

Although the v4 Module has not yet been released - we currently supply the Retro-Printer v3 Module at a reduced price


The Retro-Printer module is a direct replacement for an old dot-matrix or inkjet printer.  The Retro-Printer connects to a standard centronics cable and captures plain text, Epson ESC/P2 and HP PCL printer data sent to the centronics port by a wide range of industrial equipment and vintage computers.

The captured data can be stored electronically, or used to connect a modern USB or network printer with these retro computers and vintage machines.

Our custom software runs on a Raspberry Pi (not supplied) which converts the captured data as required.  The Retro-Printer Module connects as a HAT to the GPIO port on the Raspberry Pi.  You can then connect modern printers to the Raspberry Pi for further printing, or access the captured data by connecting to the Raspberry Pi over ethernet or WiFi for further processing, or simple e-document storage.

Various configuration options currently allow you to:

  • Simply spool captured data to a file on the SD card or a USB memory stick (for example, this is ideal for logging systems)
  • Strip ESC/P and ESC/P2 codes (including graphics) from the captured data to extract the plain text
  • Create a PDF version of the original printer output (HP PCL, plain text, ESC/P and ESC/P2 printers) to create an electronic version of printed output
  • Print the PDF to a modern printer connected via USB or network*
  • Write your own software to control the three LEDs (currently used to show power, busy and online status).

* For printing the PDF you need a printer which is recognised by Linux CUPS.

The software is supplied as one of several 8GB or 16GB SD card image downloads for use with the Single Board Computers, with all that you need.  We also offer a pre-programmed 16GB SanDisk micro-SD card with SD card convertor for an extra charge if you prefer.  The latest version of the software (for various single board computes) and the latest manual can be accessed here.

More details appear on the Retro-Printer Module website. We would also recommend that you join in the discussions on the Retro-Printer Forums.

What You Need

  1. A Single Board Computer - ideally a Raspberry Pi quad core version (Raspberry Pi 2, Raspberry Pi 3 and Raspberry Pi 3 Model B), as these will fit in the case we have designed and offer separately.  You can (however) also use an Orange Pi PC, a Banana Pi M2 or an Odroid C1 (or Odroid C1+), plus power supply.  Currently the HAT does not work with the Raspberry Pi 3 Model B+.

  2. A centronics cable - the Retro-Printer connects via an industry standard centronics connector.

Optional Extras

To add one or more optional extras, use Buy Now on each item but DO NOT pay.  Instead go to Items I've Won and request an invoice so we can combine shipping on these and any other bits you might want at the same time.

We welcome feedback and ideas for improvement of the software; and can work with customers to provide new conversion filters as required, dependent on your application and demand.

Will it Work With My Equipment?

Unfortunately, not all equipment adheres to the centronics protocol.  During development, we found various machines and computers which needed 5V on pin 13 (ERROR) and pin 32 (SELECT) in order to recognise that a working printer was connected. 

However, since selling the production model, we have found some equipment connects one or both of these lines to GND.  This drains the power from the Raspberry Pi.  If you experience this, then you need to disconnect pin 32 in the centronics cable.

I Only have an RS232 Port

We are developing a version of the Retro-Printer Module which will connect directly to an RS232 port.  In the meantime, you will need an RS232 to Centronics convertor in order to connect to the Retro-Printer.  These can sometimes be found second hand; although we are hoping to be able to supply a low cost RS232 to Centronice convertor in the future.


NOTE: Pictures currently show the released version of the Retro-Printer Module, in situ attached to a Raspberry Pi 3 Model B (not included) and inside the Retro-Printer Case (available separately)

Picture gallery

  • Retro-Printer v4 Module (capture and convert centronics port data)
  • Retro-Printer v4 Module (capture and convert centronics port data)
  • Retro-Printer v4 Module (capture and convert centronics port data)

Questions and Answers

Shipping and Payment

Item Location:
Stoke-on-Trent, Staffordshire, United Kingdom
Shipping conditions:
Buyer pays shipping expenses
Shipment fee:
  • To United Kingdom :
  • Special Delivery : £10.20
  • To EU :
  • Intl Signed For : £15.00
  • To Europe (Non EU) :
  • Intl Signed For : £15.00
  • To Americas (Non USA) :
  • Intl Signed For : £17.40
  • To Rest of World :
  • Intl Signed For : £19.80
  • To USA :
  • Intl Signed For : £17.40
Shipment terms:
Not specified
Payment methods:

Seller: Rich Mellor t/as RWAP Software 3 Dale View Court Fulford, Stoke-on-Trent, Staffordshire, ST11 9BA, United Kingdom
All prices and shipping include VAT at 20.00% where applicable
VAT Number: GB326034531

The seller accepts all responsibility for this listing

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