Summary

You need ThinPro 7.1 at minimum in order for this process to work as described.

HP Device Manager (HPDM) has a remote reimage task template, but my experience has been that it is riddled with problems. Here are some examples:

HP will not support reimage operations over wireless networks
The process sometimes hangs indefinitely
HPDM agent will abruptly stop talking to HPDM
HPDM will step on subtasks, causing the entire sequence to fail
HPDM forces sections of the registry tree back down post-reimage, causing things like wireless network connectivity to break because the registry is looking for network keys and certificates that no longer exist
There is a Retain HP ThinPro Configuration checkbox that has no impact on whether or not HPDM tries to reconfigure the device post-image

The last two items really illustrate my biggest problem with how HPDM deploys images, and that is that it makes a lot of assumptions that are counterproductive to deploying a clean image.

You can create PXE Deploy Image tasks, but they do not work over wireless networks.

To address the aforementioned shortcomings, we're going to engineer a solution that sidesteps HPDM almost entirely. This solution will take the form of a sort of recovery partition.

First, we'll create a reimage utility to run from the recovery partition. Next, we'll write a script that handles the creation of the recovery partition and installation of the reimage utility. Finally, we'll create some scripts for HPDM to deploy this system.