Links in help section

I'm not sure i did understand very well the need to put the print link in the hook_help, reading the drupal api doc :

(hook_help) [...]Description

Provide online user help.

By implementing hook_help(), a module can make documentation available to the engine or to other modules. All user help should be returned using this hook; developer help should be provided with Doxygen/api.module comments.

For a detailed usage example, see page_example.module.

hook_link will be the right place, api doc says :

(hook_link) [...]Description

Define internal Drupal links.

This hook enables modules to add links to many parts of Drupal. Links may be added in nodes or in the navigation block, for example.

Hope it helps
David