I have many category pages and each category has many products and companies and one guide for users (user guide about category subject).
What microdata should I use for purchase guide for each category page?
If I use article, Problem is logo! I don't want show my logo (Publisher logo) at the end of user guide segment!
If you don't want show the Puplisher logo visible at the end of the article you can use
<span itemprop="logo" itemscope itemtype="https://schema.org/ImageObject">
<meta itemprop="url" content="http://www.domain.com/logo.jpg">
<meta itemprop="width" content="600">
<meta itemprop="height" content="60">
</span>
So you have a valid microdata article. But it will show in the Serps.