Mocha TN3812 for Windows gives your AS/400 Server access to a local Printer on a Windows PC.
Operating Systems: Windows 7/10/11, 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).
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.
What's new in 1.6.1
- Makes the app ready for iAccess Printer Host-Based Security. When a session is made, tn3812 will send user and password encrypted with SHA1 : https://ibm-power-systems.ideas.ibm.com/ideas/IBMI-I-4808 If the User ID/password is not valid an error message window will pop up. Older AS/400 OS versions will just ignore the request, and work normally.
Mocha TN3812 is proprietary software from MochaSoft. Check the publisher's license terms for pricing and usage rights.
What is the latest version of Mocha TN3812?
The latest version is 1.6.1, released on Oct 22, 2026.
Is it safe to download Mocha TN3812?
The download button links to the official installer published on mochasoft.dk, the same file Windows Package Manager installs. You can verify the downloaded file by comparing its SHA-256 checksum with a3e51c7dff64f72992282ad288ec371ff6339f4a6d7cb797aef126f92ec3a7f6.
Which Windows versions does Mocha TN3812 support?
Mocha TN3812 runs on Windows and is available for 32-bit (x86) systems.
How do I install Mocha TN3812 silently?
Run the offline installer with msiexec /i "tn3812.msi" /quiet /norestart, or install it with Windows Package Manager: winget install --id=MochaSoft.MochaTN3812 -e --silent.
How do I uninstall Mocha TN3812?
Open Settings › Apps › Installed apps, find Mocha TN3812 and select Uninstall. From the command line, run winget uninstall --id=MochaSoft.MochaTN3812 -e.
Alternatives to Mocha TN3812
Other Document Management programs for Windows from different developers.
The Client part of TSPrint is installed on the PC which is used to connect to your remote application or Server. In most cases it is your PC at home or in the office.
