Discover printers on demand

Scan up to 10 printer IP addresses or hostnames straight away with Discover on Demand, instead of waiting for the Device Scout's next scheduled discovery. Use it when you add a new printer and want to secure it now, or to check that a printer can be found after a network change.

Discover on Demand isn't for scanning ranges or whole subnets. Use scheduled discovery for those.

If you want to Use
Add 1 to 10 new printers and use them straight away Discover on Demand
Check that a specific printer can be reached and discovered Discover on Demand
Find all the printers on a subnet, such as a new office or floor Scheduled discovery
Keep your printer list up to date Scheduled discovery

Before you begin

  • A Device Scout version 1.25.4.103 or later is enabled and online. Older versions don't appear in the Source Device list, and no message says why. See Update Device Scout.
  • You have the IP addresses or hostnames of the printers.

Run a scan

1

Open Discover on Demand

Go to Discover > Device Scout, select the Device Scout to scan with, and select Discover on Demand. Check that the Device Scout you want is shown in Select the Source Device.

2

Add the addresses

In Specify Printer IP/Hostname, enter an IP address or hostname, such as 10.0.1.204 or printer.example.com, and select + to add it. Add up to 10. The list starts empty each time. Ranges and CIDR notation aren't accepted: the scan won't start until you remove them. An approximate scan time, such as Approximate scan time is 11 seconds, appears below the field and updates as you add addresses.

3

Start the scan

Select Start. The button is unavailable while the scan runs, and progress updates as printers are found, without refreshing the page. It takes about as long as the approximate scan time shown before you started.

4

Review the results

When the scan finishes, a message summarizes how many addresses were scanned, how many printers were found, and any errors. The printers found are listed below it, so you can check them against the printers you expected. Addresses that couldn't be reached or aren't printers are marked as not found.

Result

The printers found are added to HP Insights and appear on the Secure Printers page, where you can secure them straight away. The addresses you entered aren't saved.

Things to know

  • Only one Discover on Demand scan can run at a time. It can run at the same time as scheduled discovery, and printers found by both aren't duplicated.
  • If you enter a hostname and an IP address for the same printer, it can appear twice in the results.
  • Other administrators with the Device Scout page open see the scan too. They may need to refresh or select See Result to see that it's finished.
  • A scan that doesn't finish within an hour stops and is reported as timed out, usually because the Device Scout went offline. No partial results are shown. That Device Scout is left out of the Source Device list until it's back online. Check that it's online, then try again.