Dell 5110cn Color Laser Printer - Manual (Page 368)

Up to 12 single-byte characters from 0x20 to 0x7E, except 0x20 " " (blank) and 0x3A":"
(colon).
Secure Print
-y hld= store:UserID:Password:DocumentName
-y hld=store:UserID:Password:
Store Print
-y hld=store:UserID::DocumentName
-y hld=store:UserID::
Proof Print
-y hld=proof:UserID::DocumentName
-y hld=proof:UserID::
-y jown = jobownername: password
Authentication Setting
Specifies job owner name and password for authentication.
When only job owner name is specified (-Jown=jobownername:) (no password specified),
authentication password is treated as not specified.
When only password is specified (-Jown=:password) (no job owner name specified), login user
name is used as job owner name. Entered password is used as authentication password.
When neither of job owner name nor password is specified (-Jown=:), login user name is used as
job owner name, and authentication password is treated as not specified.
When a job owner name exceeds allowable character length, the extra characters are ignored.
When an unacceptable character is specified for job owner name, "Unknown User" is used as job
owner name.
* Characters acceptable for job owner name are alphanumeric characters and symbols, except
for space and colon.
* Up to 32 characters are acceptable for job owner name.
When an unacceptable character is specified for password, or when a specified password is not
within the range of the allowable character length, the authentication password is treated as not
specified.
* Only numbers are acceptable for password.
* Acceptable password length is between 4 and 12 characters.
Incomplete form of -Jown option is treated as no authentication setting being made. In such
case, if authentication setting is made with the environmental variable, it is used as setting
information.