diff -Naur hplip-3.12.9_old/data/rules/hplip_cron hplip-3.12.9/data/rules/hplip_cron
--- hplip-3.12.9_old/data/rules/hplip_cron	2012-09-22 15:29:11.026025004 +0200
+++ hplip-3.12.9/data/rules/hplip_cron	2012-09-22 15:29:56.113580760 +0200
@@ -1,5 +1,8 @@
 #!/bin/sh
 
+LC_ALL=C
+LANG=C
+
 LOG_DIR=/var/log/hp/tmp
 
 # Default for number of days to keep old log files in /var/log/hp/tmp