HP UPD - System Administrator's Guide HP UPD 5.6.5

HP UPD Null Scan driver
Introduction
The scan driver cannot be used for HP MFP products that are supported by the HP UPD when HP UPD v5.2.x or
earlier is installed.
This appendix chapter contains the following sections:
●
Install a Scan driver with and without HP UPD pre-installed
●
Replace the HP PNP Scan Null driver with a product-specific Scan driver
Install a Scan driver with and without HP UPD pre-installed
If you want to install a scan driver for an HP MFP product which is supported by the HP UPD using a plug an
play event, you need to make sure that your system is pre-configured correctly before connecting to the
printer using a USB. The following approaches are possible:
●
No HP UPD driver is installed on your Windows PC and the device specific scan driver is pre-installed on
the Windows PC.
●
HP UPD v5.3.1 or later is installed and the product-specific scan driver is pre-installed.
After connecting to the product using USB, the Scan driver is installed.
In order to be able to install a product-specific Scan driver after a plug and play event which did not install a
scan driver, HP UPD v5.3.1 and later installs an HP PNP Scan Null driver if one or more of the of the following
is true:
●
There is no other scan driver installed on the system that provides a hardware ID match. This might
happen if the driver is on the product CD and the device is connected before the driver is installed from
the product CD.
●
The driver(s) installed on the system that provide a hardware ID match are unsigned.
●
The driver(s) installed on the system provide a compatible ID match and are older than the HP UPD.
●
An earlier version (v5.2.x or earlier) is installed on the system.
How to identify if the HP PNP Scan Null driver has been installed:
1. Click Start.
2. Right-click Computer and select Properties.
3. Click Device Manager.
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