Sometimes it is required to print draft receipt before validating POS Order and that is what we have improved in our new development in OpenERP V7.
Here in below screen, we can see that we have selected customer, and few products.
Now once we click on payment option, we will have two more options for Draft Receipt. We can see the Draft Receipt directly on screen like this, or we can print draft receipt also.
And here is the normal receipt which we can see after validation which is same as draft receipt.