[IPP] IPP Scan - Is Push scanning mandatory?

[IPP] IPP Scan - Is Push scanning mandatory?

[IPP] IPP Scan - Is Push scanning mandatory?

Michael Sweet msweet at apple.com
Tue Feb 11 17:37:30 UTC 2014


On Feb 11, 2014, at 11:57 AM, Ira McDonald <blueroofmusic at gmail.com> wrote:
> Hi Mike,
> I also want to hear Pete's definition of constrained network clients.
> In TCG work on mobile devices, we are careful to accomodate very low-end
> "feature phones" (under $100 street price) that dominate the emerging countries
> markets.  These devices definitely do *not* have 8GB, high-speed CPUs, or
> large batteries.

But are you going to initiate a scan from a low-end feature phone?  Would you want to?

*If* that class of device is really important to support (which I question), then we should make push scan unconditionally required.  However, if we decide to set the bar high enough that the client is capable of viewing web pages and images, sending emails, etc., then I don't think push scan is necessary.

In either case, I don't think the answer is to add another TXT record key for a capability that can be implemented by a client.

> Radio usage controls battery life.  Acting as a pull and forward agent for large
> files is a seriously poor idea for very low-end phones.

Do some scans and check the sizes.  I recently scanned 65 pages worth of reports to have a digital copy, and it fit in 8MB. That doesn't take a long time to send even over bad Wi-Fi/cellular links.

Michael Sweet, Senior Printing System Engineer, PWG Chair

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