Provides an advisory locking mechanism for hosts to coordinate exclusive access to a copier device. Setting the object to a unique id will only succeed if the token is currently set to 0. The token is unlocked when it is set to 0. If the token is set to a any value other than 0, then token is locked. If the token was set to a unique id (locked), then an attempt to set (lock) the token will fail. If the token was set to 0 (unlocked), then an attempt to set (lock) the token will succeed in locking the token. A get operation on COPIER-TOKEN will return its current setting. The device does not prevent access to any objects. It is assumed that hosts will be well behaved; respecting this advisory locking mechanism by: 1) acquiring the lock before changing copier objects, and 2) releasing the lock when done changing copier objects. Additional information: Provides an advisory locking mechanism for hosts to coordinate exclusive access. Setting the object to a unique id will only succeed if the token is currently set to 0. The token is unlocked when it is set to 0. If the token is set to a any value other than 0, then token is locked. If the token was set to a unique id (locked), then an attempt to set (lock) the token will fail. If the token was set to 0 (unlocked), then an attempt to set (lock) the token will succeed in locking the token. A get operation on COPY-TOKEN will return its current setting. The device does not prevent access to any objects. It is assumed that hosts will be well behaved; respecting this advisory locking mechanism by: 1) acquiring the lock before changing copy objects, and 2) releasing the lock when done changing copy objects.