diff --git a/hplip-hpcups-sigpipe.patch b/hplip-hpcups-sigpipe.patch
new file mode 100644
index 0000000..3dbe0b0
--- /dev/null
+++ b/hplip-hpcups-sigpipe.patch
@@ -0,0 +1,29 @@
+diff -up hplip-3.9.8/prnt/hpijs/services.cpp.hpcups-sigpipe hplip-3.9.8/prnt/hpijs/services.cpp
+--- hplip-3.9.8/prnt/hpijs/services.cpp.hpcups-sigpipe	2009-08-04 22:35:41.000000000 +0100
++++ hplip-3.9.8/prnt/hpijs/services.cpp	2009-10-29 11:56:23.015022337 +0000
+@@ -29,6 +29,7 @@
+     POSSIBILITY OF SUCH DAMAGE.
+ \*****************************************************************************/
+ 
++#include <errno.h>
+ #include <sys/stat.h>
+ #include <stdio.h>
+ #include <stdlib.h>
+@@ -382,8 +383,16 @@ DRIVER_ERROR UXServices::ToDevice(const 
+    if (write(OutputPath, pBuffer, *Count) != (ssize_t)*Count) 
+    {
+       static int cnt=0;
+-      if (cnt++ < 5)
++      if (cnt < 5)
++      {
++	 cnt++;
+          BUG("unable to write to output, fd=%d, count=%d: %m\n", OutputPath, *Count);
++      }
++
++      if (errno == EPIPE)
++	 /* The backend has exited.  There's no recovering from that. */
++	 exit (1);
++
+       return IO_ERROR;
+    }
+ 
diff --git a/hplip-retry-open.patch b/hplip-retry-open.patch
new file mode 100644
index 0000000..75723e7
--- /dev/null
+++ b/hplip-retry-open.patch
@@ -0,0 +1,30 @@
+diff -up hplip-3.9.8/prnt/backend/hp.c.retry-open hplip-3.9.8/prnt/backend/hp.c
+--- hplip-3.9.8/prnt/backend/hp.c.retry-open	2009-10-27 11:46:00.181457688 +0000
++++ hplip-3.9.8/prnt/backend/hp.c	2009-10-27 11:57:51.527583553 +0000
+@@ -724,11 +724,21 @@ int main(int argc, char *argv[])
+                /* Open hp device. */
+                while ((stat = hpmud_open_device(argv[0], ma.prt_mode, &hd)) != HPMUD_R_OK)
+                {
+-                  if (stat != HPMUD_R_DEVICE_BUSY)
+-                  {
+-                     BUG("ERROR: cannot open device stat=%d: %s\n", stat, argv[0]);
+-                     goto bugout;
+-                  }
++		  if (getenv ("CLASS") != NULL)
++		  {
++		     /* If the CLASS environment variable is set we
++		      * need to give other class members a chance in
++		      * case their devices are ready to go.
++		      */
++
++		     BUG("INFO: cannot open device stat=%d: %s\n", stat, argv[0]);
++		     BUG("INFO: queuing on next printer in class...\n");
++
++		     /* Prevent job requeuing too quickly. */
++		     sleep (5);
++
++		     goto bugout;
++		  }
+ 
+                   /* Display user error. */
+                   device_event(argv[0], printer, 5000+stat, argv[2], argv[1], argv[3]);
diff --git a/hplip.spec b/hplip.spec
index bc43bd9..c5e530d 100644
--- a/hplip.spec
+++ b/hplip.spec
@@ -1,7 +1,7 @@
 Summary: HP Linux Imaging and Printing Project
 Name: hplip
 Version: 3.9.8
-Release: 18%{?dist}
+Release: 19%{?dist}
 License: GPLv2+ and MIT
 Group: System Environment/Daemons
 Conflicts: system-config-printer < 0.6.132
@@ -24,7 +24,9 @@ Patch8: hplip-non-scripts.patch
 Patch9: hplip-requirespageregion.patch
 Patch10: hplip-discovery-method.patch
 Patch11: hplip-device-reconnected.patch
-Patch12: hplip-plugin-error.patch
+Patch12: hplip-retry-open.patch
+Patch13: hplip-plugin-error.patch
+Patch14: hplip-hpcups-sigpipe.patch
 BuildRoot:	%{_tmppath}/%{name}-%{version}-%{release}-root-%(%{__id_u} -n)
 
 Requires(pre): /sbin/service
@@ -147,9 +149,15 @@ rm -rf $RPM_BUILD_DIR/%{name}-%{version}
 # Give up trying to print a job to a reconnected device (bug #515481).
 %patch11 -p1 -b .device-reconnected
 
+# Retry when connecting to device fails (bug #528483).
+%patch12 -p1 -b .retry-open
+
 # Set a printer-state-reason when there's a missing required plugin
 # (bug #531330).
-%patch12 -p1 -b .plugin-error
+%patch13 -p1 -b .plugin-error
+
+# Avoid busy loop in hpcups when backend has exited (bug #525944).
+%patch14 -p1 -b .hpcups-sigpipe
 
 %build
 aclocal
@@ -354,6 +362,10 @@ fi
 /usr/bin/update-desktop-database &>/dev/null ||:
 
 %changelog
+* Thu Oct 29 2009 Tim Waugh <twaugh@redhat.com> 3.9.8-19
+- Retry when connecting to device fails (bug #528483).
+- Avoid busy loop in hpcups when backend has exited (bug #525944).
+
 * Wed Oct 28 2009 Tim Waugh <twaugh@redhat.com> 3.9.8-18
 - Set a printer-state-reason when there's a missing required plugin
   (bug #531330).