Manga pages that are uploaded to Zerochan should have minimal text (better using raw scans than translated ones), no excessive panels or speech bubbles and be quality scans.
Images from manga reading/hosting sites are not allowed.
As a step to preventing any further misuse, the minimum height should be 1200px.
Do no enlarge the image yourself for getting around it!
Do not spam (posting entire chapters etc.), zerochan isn't a place to read Manga