Reference Guide

6. A dispatcher mechanism creates virtual queues for each file belonging to this group, allowing
serialization of jobs per printer, so the Windows spooler doesn’t potentially address the same printer
more than once at a time. For each printer, each file will queue, then un-queue and render (from plain
content to PCL/PS), and send for printing through the Windows spooler. If a job stays queued for too
long, it will be re-queued according to a retry policy (configurable). If after all retries the job still can’t
print, the job is considered failed. Only after the job is finished printing, will the next one be un-queued
and processed.
7. Once the printer is available, and the print request is un-queued, the rendering starts. The system will
activate a proprietary driver installed on the HP ePrint Enterprise server which is capable of rendering in
PCL 3, 5/6 and PS, and each job will be sent to the printer through port 9100 or to a Windows server
queue or to a Secure Pull Print queue.
8. During this process, the driver monitors the status of the job. If bits are successfully sent to printer
buffer, job will be considered printed. If something happens to prevent this (either because of printer
conditions, or connection problems), the job is cancelled. Either way, the system is notified of the
status, and the user receives a consolidated message after a few seconds.
9. Once the original stored file reaches a final state, the file is deleted.
2.2.2 Enterprise mobility
Enterprise mobility typically includes over-the-air distribution of applications, data, and configuration
settings for all types of mobile devices, including mobile phones, smartphones, tablet computers, ruggedized
mobile computers, mobile printers, mobile POS devices, etc. This applies to both company-owned and
employee-owned (BYOD) devices across the enterprise, or mobile devices owned by consumers.
2.2.2.1 Blackberry Enterprise Server
Mobile Data Service (MDS) is one of the earliest ways to provide the necessary channel for HP ePrint
Enterprise. BlackBerry provides this secure channel through the BlackBerry Enterprise Server (BES), so
BlackBerry users have direct access to enterprise network resources as if they were directly connected to the
local network – similar to a VPN connection.
6 Chapter 2 Printing to HP ePrint Enterprise