diff -up cups-1.5b1/backend/usb-unix.c.usb-paperout cups-1.5b1/backend/usb-unix.c

--- cups-1.5b1/backend/usb-unix.c.usb-paperout	2011-05-24 15:51:39.000000000 +0200

+++ cups-1.5b1/backend/usb-unix.c	2011-05-24 15:51:39.000000000 +0200

@@ -30,6 +30,11 @@

 #include <sys/select.h>

+#ifdef __linux

+#include <sys/ioctl.h>

+#include <linux/lp.h>

+#endif /* __linux */

+

 /*

  * Local functions...

@@ -334,7 +339,19 @@ open_device(const char *uri,		/* I - Dev

   if (!strncmp(uri, "usb:/dev/", 9))

 #ifdef __linux

   {

-    return (open(uri + 4, O_RDWR | O_EXCL));

+    fd = open(uri + 4, O_RDWR | O_EXCL);

+

+    if (fd != -1)

+    {

+     /*

+      * Tell the driver to return from write() with errno==ENOSPACE

+      * on paper-out.

+      */

+      unsigned int t = 1;

+      ioctl (fd, LPABORT, &t);

+    }

+

+    return fd;

   }

   else if (!strncmp(uri, "usb://", 6))

   {

@@ -400,7 +417,14 @@ open_device(const char *uri,		/* I - Dev

         if (!strcmp(uri, device_uri))

 	{

 	 /*

-	  * Yes, return this file descriptor...

+	  * Yes, tell the driver to return from write() with

+	  * errno==ENOSPACE on paper-out.

+	  */

+	  unsigned int t = 1;

+	  ioctl (fd, LPABORT, &t);

+

+	 /*

+	  * Return this file descriptor...

 	  */

 	  fprintf(stderr, "DEBUG: Printer using device file \"%s\"...\n",