Printing in Primefaces - html

Question

so I am using the printer from Primefaces, but it can not find the id of the datatable im trying to print. Anyone know why? I have removed some code for clarity. I also got the printer working on a different site but its not working here
<p:outputPanel id="topPanel" style=" display:block; height: 24%; float: top">
<h:form>
<p:growl id="messages" showDetail="true" />
<p:toolbar style="width: 100%">
<f:facet name="right">
<div style="float: right">
<p:commandButton actionListener="#{s.save}" value="Bearbeiten">
<f:param name="Bearbeiten" value="10" />
</p:commandButton>
<p:commandButton value="Drucken" type="button" icon="ui-icon-print">
<p:printer target="datatable"/>
</p:commandButton>
</div>
</f:facet>
</p:toolbar>
</h:form>
</p:outputPanel>
<p:outputPanel id="datatable" style="height: 50%">
<ui:insert name="datatable" />
<p:dataTable var="item" value="" paginator="true" rows="10" selection="" id="Datatable">
<p:column style="width:16px;text-align:center"/>
<p:column headerText="ID">
<h:outputText value="" />
</p:column>
<p:column headerText="Nachname">
<h:outputText value="" />
</p:column>
<p:column headerText="Vorname">
<h:outputText value="" />
</p:column>
</p:dataTable>
</p:outputPanel>