I tested the fax on your fiile CTS.pdf both with cups vesion 1.4.3 and 1.4.5 and encoding set to MMR with our latest 3.11.7 release The ouput is fine and same for both cups version i.e. we have not been able to reproduce the defect. HPLIP 3.11.7 will be avaliable for download shortly and you can try sending fax using the latest release. If still problem persists you can get back to us.
Further if you want u can try installing cups 1.4.3 instead of 1.4.5 on current 3.11.5 hplip version. You don't have to remove other packages it will remain intact. We will tell you steps for that.
Ray
I tested the fax on your fiile CTS.pdf both with cups vesion 1.4.3 and 1.4.5 and encoding set to MMR with our latest 3.11.7 release The ouput is fine and same for both cups version i.e. we have not been able to reproduce the defect. HPLIP 3.11.7 will be avaliable for download shortly and you can try sending fax using the latest release. If still problem persists you can get back to us.
Further if you want u can try installing cups 1.4.3 instead of 1.4.5 on current 3.11.5 hplip version. You don't have to remove other packages it will remain intact. We will tell you steps for that.
Gaurav