What is a "composite device"?

Posted on 2004-04-01
Last Modified: 2008-01-09
I am having trouble installing my Epson RX500 all-in-one (printer/scanner/copier) under Windows 2000 via USB 2.0 adapter. Adapter's vendor's website says that "composite" devices require a driver update. Is my printer considered to be a "composite device"?
Question by:alicia1234
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
  • 2
  • 2
LVL 69

Expert Comment

ID: 10733757
Here's the definition of what a composite device is:

Your printer probably is a composite device.  Here are some troubleshooting tips for USB devices:

Expert Comment

ID: 10734410
You probably need to update your USB 2.0 Drivers or download the newest drivers for you Epson

Printer Drivers Located Here


Author Comment

ID: 10734470
To NWCS: alreadyn downloaded and tried latest Epson driver (see initial post) w/ same problem. Am about to try new USB drivers.
To Callandor: went to the links you provided but still am not sure that my printer is indeed a "composite device"; did not really understand the definition ... too techy for me. ;-(
With this post, all I'm really trying to find out for certain is: "Is my printer considered a 'Composite Device' ?"
Industry Leaders: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!


Expert Comment

ID: 10734630
Your composite device is probably one of the card readers that is on the printer. When ever i have installed a photo printer with card readers built onto it, they always detect as composit devices. You will have to manually update the driver through device manager and point the hardware wizard to the correct cd location of the card reader drivers or the location of the printer drivers on the.
LVL 69

Accepted Solution

Callandor earned 250 total points
ID: 10735014
Here's an easier to understand "picture" of composite devices:

Since you have a printer and a scanner together, that would qualify as a composite device: two or more functions in one.  The example in the link is a webcam and a microphone.

Author Comment

ID: 10735037
Callandor: Thanks.

Featured Post

Free Tool: Port Scanner

Check which ports are open to the outside world. Helps make sure that your firewall rules are working as intended.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Does your iMac really need a hardware upgrade? Will upgrading RAM speed-up your computer? If yes, then how can you proceed? Upgrading RAM in your iMac is not as simple as it may seem. This article will help you in getting and installing right RA…
This paper addresses the security of Sennheiser DECT Contact Center and Office (CC&O) headsets. It describes the DECT security chain comprised of “Pairing”, “Per Call Authentication” and “Encryption”, which are all part of the standard DECT protocol.
In this video, viewers will be given step by step instructions on adjusting mouse, pointer and cursor visibility in Microsoft Windows 10. The video seeks to educate those who are struggling with the new Windows 10 Graphical User Interface. Change Cu…
Monitoring a network: how to monitor network services and why? Michael Kulchisky, MCSE, MCSA, MCP, VTSP, VSP, CCSP outlines the philosophy behind service monitoring and why a handshake validation is critical in network monitoring. Software utilized …

707 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question