pos/pos_ticket_logo/views/pos_ticket_logo_report_receipt_report.xml

<?xml version="1.0" encoding="utf-8"?>
<openerp>
<data>
<template id="pos_ticket_logo_report_receipt_report"
          inherit_id="point_of_sale.report_receipt">

    <xpath expr="//div[@class='col-xs-12 text-center']/h2" position="after">
            <img src="/web/binary/company_logo" /><br />
    </xpath>

    <xpath expr="//div[@class='col-xs-12 text-center']/h2" position="attributes">
        <attribute name="style">display:none;</attribute>
    </xpath>

</template>
</data>
</openerp>