A clear, well structured Operator Handbook makes using a product pleasurable and efficient. Consequently, your customers will be encouraged to buy more from you, and recommend friends and colleagues to do likewise.
Unclear, badly designed or inaccurate documentation will damage your company's image, and cause unwanted, time consuming, after-sales costs.
Easily followed maintenance documents will help you to sell more spares and consumables.
Badly maintained equipment will be discarded prematurely and is unlikely to be replaced with new equipment from the same manufacturer.