Mocha TN3812 for Windows 10/11

Mocha TN3812 for Windows gives your AS/400 Server access to a local Printer on a Windows PC.

  • Operating Systems: Windows 7/8/8.1/10/11, 32/64 bit. Version 1.2 or older versions can be used with XP if .NET Framework 4.0 is installed. Version 1.3 and later requires .NET 4.5
  • Easy to configure. Define AS/400 IP address and a device name. Connect to the AS/400 and your device name is now the printer queue.
  • Uses the standard TN5250 protocol (AS/400 must use OS V4R1 or better).
  • Supports SSL/TLS 1.0 - 1.2 (Secure Socket Layer Protocol).
  • Can handle SCS/EBCDIC print jobs from an AS/400 Mainframe Computer system.
  • TN3812 can accept print jobs to any printer. Both local and network printers.
  • Possible to queue print jobs local on the PC, and pre-view data before printing.
  • Support for landscape mode.
  • Can run as an icon in the tray.
  • Lifetime free upgrades to new versions of the product
  • Low cost : Single User license 19.85 USD or 199 USD for a Company License.


  • Can only accept simple SCS print data. The Print queue on the AS/400 must use TRANSFORM(*NO)
  • Cannot accept IPDS jobs from an AS/400 system
  • Will ignore SCS font handling commands as : Set Line Density
  • The main purpose for Mocha TN3812 is to run on each local PC workstation and handle the local attached printers.
    It is not designed to be used as a general print server for many users.

Try it free for 30 days, download a full copy using a PC Web browser. If using XP, see the download page.

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What is a company license ?

With a company license it is possible to install the product on an unlimited number of work-stations. A company license can be used by a single company. If there are branch offices or home workstations, a single company license will be valid. For a multi-national company, we must ask for a company license for each country.
A subsidiary company, or sister company, cannot use a license issued for the main company.

What is a single user license ?

With a single user license it is possible to install the product on one PC.

Lifetime free upgrades

When you buy one of our software products you will also get all updated versions for free. You can always download the latest version of the product from our web site.