Constraints between a Custom Pagesize and Manual Envelope Paper feed

[ronaly]

This is about constraints between a custom pagesize and a manual envelope  in the paper feed.

The behavior is different in leopard and pre-leopard OSes.

In pre-leopard OSes (like Tiger):
 * Selecting a custom pagesize will disable a manual envelope in the paper feed.

In Leopard:
 * Selecting a custom pagesize does not disable nor pops up a constraint message when choosing a manual envelope in the paper feed.


Disabling the manual envelope in the paper feed has no special implementation in the PPD constraints. As long as you set any papersize except envelope size constrained against Inputslot manual envelope, any custom size you set does disable the manual envelope.

But in Leopard it does not do like Tiger behaves.
Is there a way to constraint a custom pagesize against manual envelope in Leopard?
Is this a bug in Leopard?