From: Marcel Holtmann <marcel@holtmann.org>
To: Jon Valvatne <jon@valvatne.com>
Cc: BlueZ Mailing List <bluez-devel@lists.sourceforge.net>
Subject: Re: [Bluez-devel] Extremely slow printing?
Date: Thu, 17 Jun 2004 13:59:30 +0200 [thread overview]
Message-ID: <1087473569.23809.7.camel@localhost> (raw)
In-Reply-To: <1087440365.2624.75.camel@localhost.localdomain>
Hi Jon,
> Oops... please disregard the last part of my previous message. It turns
> out, of course, that the data being sent to the printer is *much* larger
> than the original 250K of the postscript file. I haven't dealt much with
> non-postscript printers before, so this is all a bit new to me. The size
> of the raw data being sent to the printer is over 7 megabytes, which
> means a speed of 30 seconds over bluetooth just won't be possible.
>
> And I suppose the difference between the Windows and Linux results could
> be explained by a difference in data size; maybe the Windows printer
> driver generates a smaller raw data file. I'll have to investigate this
> further.
>
> So now my only question is: Is it expected/normal for the BlueZ CUPS
> backend to only manage about 400kbps when transferring data to the
> printer? Is there anything that can be done to speed this up?
actually this depends on the hardware in your printer. The max transfer
rate should be something about 700kbps, but this is not a must. Mostly
the reasons for this are differnt link manager implementations or an
UART that isn't running with full speed. Check your Bluetooth devices
with "hciconfig -a" and "hcitool info <printer-bdaddr>".
Regards
Marcel
-------------------------------------------------------
This SF.Net email is sponsored by The 2004 JavaOne(SM) Conference
Learn from the experts at JavaOne(SM), Sun's Worldwide Java Developer
Conference, June 28 - July 1 at the Moscone Center in San Francisco, CA
REGISTER AND SAVE! http://java.sun.com/javaone/sf Priority Code NWMGYKND
_______________________________________________
Bluez-devel mailing list
Bluez-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/bluez-devel
next prev parent reply other threads:[~2004-06-17 11:59 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-06-17 0:11 [Bluez-devel] Extremely slow printing? Jon Valvatne
2004-06-17 0:26 ` Marcel Holtmann
2004-06-17 2:14 ` Jon Valvatne
2004-06-17 2:46 ` Jon Valvatne
2004-06-17 11:59 ` Marcel Holtmann [this message]
2004-06-18 13:20 ` David Woodhouse
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1087473569.23809.7.camel@localhost \
--to=marcel@holtmann.org \
--cc=bluez-devel@lists.sourceforge.net \
--cc=jon@valvatne.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox