I'm working on porting HPLIP to Mac OS X, installed via DarwinPorts
(http://darwinports.opendarwin.org). I have had some success; my
device is recognized, I can get some status information, and I can
print to it. However, accessing other functions, such as fax and
scanning, does not work yet. My device is an HP OfficeJet 5510. When
I run hp-info -g, I get the following error, which indicates a PML
channel problem:
[DEBUG]: Opening HP-MESSAGE channel...
[DEBUG]: (xmit) Sending data on channel (6)
[DEBUG]: 'msg=channelopen\ndevice-id=1\nservice-name=HP-MESSAGE\n'
[DEBUG]: (xmit) Reading data on channel (6)
[DEBUG]: 'msg=ChannelOpenResult\nresult-code=12\n'
[DEBUG]: Exception: 99 (Unknown internal error)
I have determined that no data is sent back from the device (via
Device::Read) when MlcChannel::MlcInit calls MlcReverseReply (line
322 in io/hpiod/mlc.cpp). So it seems no reply is being sent in
response to the MLCInit command. I found the following information in
the HPOJ documentation, which I believe may be the cause of the
problem (http://hpoj.sourceforge.net/hpoj-0.91/doc/info-protocols.html):
"FF/CC/00 -- Composite scan interface. Not used by the hpoj software.
On some models, accessing this interface, which occurs when you
connect the device to a Windows system (even if no scanning actually
occurs), disables MLC/1284.4 scanning through the hpoj software until
you power-cycle the device."
My device has this interface, so I'm thinking this may be what's
causing the problem. However, I don't have any of the device details
needed to work with the composite scan interface. I'm hoping someone
could provide me with some detailed documentation about this device
interface so I can resolve this issue. I'm guessing this interface is
used for the Scan button on the device and setting up the options
(destinations) for it.
Any help would be appreciated. Thank you for your attention.
--
Adam Schenker
[EMAIL PROTECTED]
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