I think the most important step to write an effective manual, is to know the general characteristic of my audience. This will determine the appropriate vocabulary, structure, tone, and depth of content.
In order to write an effective user manual that explains the installation and operation of a “3-in-1 Color Inkjet Printer” I need to recognize my readers and their level of understanding. When writing this user manual I will be confronted with multiple audiences; people with different level of understanding and different reasons to purchase this product. These readers have divers understanding of the product, some would be high tech, some would be low tech. In order to meet their needs and expectations