Tray 1 - Movable Guides?

Can someone explain the different Paper Feed options for my HP LaserJet 6MP? 
  Here's the list:

Auto Select
Standard
Manual
Tray 1 - Movable Guides
Tray 1
Tray 2 - Movable Guides
Tray 2
Tray 3 - Movable Guides
Tray 3
Tray 4 - Movable Guides
Tray 4

1) What's the difference between "Auto Select" and "Standard"?
2) What's the difference between "Movable Guides" and the non-Movable Guides 
options?
3) My printer only has two trays.  What are the other two?

--

-- 
Timur Tabi

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Re: Tray 1 - Movable Guides?

   Date: Sat, 16 May 2009 17:37:17 -0500
   From: Timur Tabi <timur <at> tabi.org>

   Can someone explain the different Paper Feed options for my HP LaserJet 6=
   MP?=20
     Here's the list:

   Auto Select
   Standard
   Manual
   Tray 1 - Movable Guides
   Tray 1
   Tray 2 - Movable Guides
   Tray 2
   Tray 3 - Movable Guides
   Tray 3
   Tray 4 - Movable Guides
   Tray 4

   1) What's the difference between "Auto Select" and "Standard"?
   2) What's the difference between "Movable Guides" and the non-Movable Gui=
   des=20
   options?
   3) My printer only has two trays.  What are the other two?

Different printers have different trays.  On some printers, both paper
guides (left and right) move, so that smaller paper is always
centered; on some, only the left guide moves.

The drivers for the LaserJet printers are generic, and support a lot

Some changes

I've finally had some time to do a little bit of work today.

I've checked in the following changes:

1) Speed up cups-genppdupdate by allowing a single cups-genppd process
   to generate multiple PPD files.  This won't be an issue to many
   people, but if someone has a huge number of printers connected
   (perhaps by means of a lot of network printers) it will save some
   time (on my system, it's about 40-50% faster).

   The mechanism is a pair of new commands that cups-genppdupdate
   accepts: "dog" and "BREED".  The "dog" command reads URI's on its
   stdin and outputs the ppd file on stdout.  At the end of the PPD
   file it outputs a line

   *%*%EOFEOF

   and waits for the next URI.

   The BREED command simply exits with a success status.  Versions of
   gutenprint (that is, the CUPS "driver") that don't support this
   command return a non-zero exit status (i. e. gutenprint already
   returns non-zero status for commands it doesn't recognize).

   This may not be the best way to do this.  Perhaps a better method
   would be to implement a command CMDS or the like to list what
   commands are accepted?

2) I've added the following generalized stp_split and stp_unpack to
   bit-ops.c.  Unpack now supports up to 16-way (powers of 2); split

Status of Canon MP980 support + help proposal

Hi,

Internet ressources seems to indicate that the only current option to 
print on MP980 with Linux is turboprint driver. I would like to support 
with work (not money...) an open source driver.

Is there someone from the gutenprint devel team working on MP980?
I'm willing to buy the printer, and would happy to help developing the 
driver. But before, I would like to know the following:
- what would be the expected and/or possible difficulties to develop 
such a driver?
- what are the kind of tasks necessary to develop the driver?

I'm a quite experienced C/C++ developer. But I have only a Linux box 
(with a qemu-virtual Windows XP). And as long as the communication 
protocol of the printer is not encryped, I would tend to think that 
developing the driver is a matter of understanding the communication 
protocol (but I'm a layman in matter of printing protocols etc.).

Thanks,

Melvin

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Re: Status of Canon MP980 support + help proposal

   Date: Mon, 18 May 2009 13:32:47 +0200
   From: Melvin Hadasht <melvin.hadasht <at> free.fr>

   Internet ressources seems to indicate that the only current option to 
   print on MP980 with Linux is turboprint driver. I would like to support 
   with work (not money...) an open source driver.

   Is there someone from the gutenprint devel team working on MP980?
   I'm willing to buy the printer, and would happy to help developing the 
   driver. But before, I would like to know the following:
   - what would be the expected and/or possible difficulties to develop 
   such a driver?
   - what are the kind of tasks necessary to develop the driver?

   I'm a quite experienced C/C++ developer. But I have only a Linux
   box (with a qemu-virtual Windows XP). And as long as the
   communication protocol of the printer is not encryped, I would tend
   to think that developing the driver is a matter of understanding
   the communication protocol (but I'm a layman in matter of printing
   protocols etc.).

Sascha Sommer (our Canon driver developer) can speak more to that
driver specifically, but usually it's not the communication protocol
per se that's the issue; it's figuring out the printer instruction set
and how the data has to be layed out.

--

-- 
Robert Krawitz                                     <rlk <at> alum.mit.edu>

Tall Clubs International  --  http://www.tall.org/ or 1-888-IM-TALL-2

Re: Status of Canon MP980 support + help proposal

Selon Robert Krawitz <rlk <at> alum.mit.edu>:

> Sascha Sommer (our Canon driver developer) can speak more to that
> driver specifically, but usually it's not the communication protocol
> per se that's the issue; it's figuring out the printer instruction set
> and how the data has to be layed out.

OK.

Then it's a matter of analysing the real data.  I imagine, that "Print to file"
of the Windows Driver will be used a lot.

I'll start to read the source code for the currently supported Canon printers,
while waiting from more info from Sascha.

Thanks.

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Epson Stylus DX-4400 escputil not working

Hi folks!

I have bought an Epson Stylus DX-4400 printer and ran out of ink.
Now i want to determine what ink i miss, but when i try "escputil -s -r
/dev/usblp0"
i get this:

Escputil version 5.1.98.2, Copyright (C) 2000-2006 Robert Krawitz
Escputil comes with ABSOLUTELY NO WARRANTY; for details type 'escputil -l'
This is free software, and you are welcome to redistribute it
under certain conditions; type 'escputil -l' for details.

Cannot open /dev/usblp0 read/write: Device or resource busy

I have no jobs in printer queue...

What can i do?

Best Regards
Gryffus

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Re: Epson Stylus DX-4400 escputil not working

   Date: Mon, 18 May 2009 16:21:17 +0200 (CEST)
   From: gryffus <at> hkfree.org

   Hi folks!

   I have bought an Epson Stylus DX-4400 printer and ran out of ink.
   Now i want to determine what ink i miss, but when i try "escputil -s -r
   /dev/usblp0"
   i get this:

   Escputil version 5.1.98.2, Copyright (C) 2000-2006 Robert Krawitz
   Escputil comes with ABSOLUTELY NO WARRANTY; for details type 'escputil -l'
   This is free software, and you are welcome to redistribute it
   under certain conditions; type 'escputil -l' for details.

   Cannot open /dev/usblp0 read/write: Device or resource busy

   I have no jobs in printer queue...

   What can i do?

Even though it's not the problem here, I would advise upgrading to the
latest version of Gutenprint (5.2.3).  5.1.98.2 was a beta release of
5.2.

You might try killing your CUPS daemon; it might have something that
has a channel to the printer.  You might also try using a tool like
fuser to find the offending process.

--

-- 

Re: Epson Stylus DX-4400 escputil not working

>    Date: Mon, 18 May 2009 16:21:17 +0200 (CEST)
>    From: gryffus <at> hkfree.org
>
>    Hi folks!
>
>    I have bought an Epson Stylus DX-4400 printer and ran out of ink.
>    Now i want to determine what ink i miss, but when i try "escputil -s -r
>    /dev/usblp0"
>    i get this:
>
>    Escputil version 5.1.98.2, Copyright (C) 2000-2006 Robert Krawitz
>    Escputil comes with ABSOLUTELY NO WARRANTY; for details type 'escputil
> -l'
>    This is free software, and you are welcome to redistribute it
>    under certain conditions; type 'escputil -l' for details.
>
>    Cannot open /dev/usblp0 read/write: Device or resource busy
>
>    I have no jobs in printer queue...
>
>    What can i do?
>
> Even though it's not the problem here, I would advise upgrading to the
> latest version of Gutenprint (5.2.3).  5.1.98.2 was a beta release of
> 5.2.
>
> You might try killing your CUPS daemon; it might have something that
> has a channel to the printer.  You might also try using a tool like
> fuser to find the offending process.
>

Re: Epson Stylus DX-4400 escputil not working

Hi,

gryffus <at> hkfree.org wrote:

> I had a conversation with a developer of libinklevel and he told me that
> printers go to some "sleep" state when run out of ink. Could this be my
> case? The printer is blinking red and wont print anything... If yes, how
> can i awake my printer to get ink levels?
> fuser and lsof gave me no informations 

I don't know for sure whether this applies to the DX4400 - but many of 
the displayless Epson models have a little plastic arrow moulded into 
the casework.  If you go through the motions of replacing the ink 
cartridges, the first time you push the ink button it should move the 
carriage so this plastic arrow "points" to the first empty cartridge - 
further presses will advance through any more empty cartridges, and at 
some point pressing the button will make the carriage will move so you 
can replace the carts.  If you push the button yet again without 
changing cartridges, it'll just park the head.  You won't do any harm 
going through the motions like this as long as you don't leave the head 
in the cartridge-change position for hours on end.

Hope this helps

All the best,
--
Alastair M. Robinson

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