RPTR STATES ACFT X WAS GIVEN ZOB FREQ BEFORE HDOF WAS COMPLETED. FOR WHATEVER REASON; IT APPEARS ZOB NEVER TOOK THE HDOF. RPTR TRIED CONTACTING ZOB CTLR; BUT THEN OBSERVED ACFT X WAS CLBING. RPTR RECALLED HDOF. DATA TAG ON ZOB'S RADAR CHANGED TO LIMITED TAG. ZOB CTLR FORGOT ABOUT ACFT X; AND ACFT VENTURED INTO ANOTHER SECTOR WITHOUT COORD. RESULTED IN AN OPDEV.

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ACR ABC DEPARTED LAN FOR CLE. I WAS WORKING THE S/N RADAR POS COMBINED. I CLBED THE ACFT TO 10000 FT; GAVE HIM DIRECT PSI VOR; AND INITIATED AN AUTOMATED HDOF TO ZOB. CLBING OUT OF 6000 FT; I SWITCHED THE ACFT TO LAN SECTOR OF ZOB; ALTHOUGH THE HDOF HAD NOT YET BEEN ACCEPTED. I CALLED ZOB SEVERAL TIMES TO GET THE ACFT BACK OR VERIFY THE HDOF. ZOB DID NOT ANSWER ANY OF THE LANDLINE CALLS. THE ACFT CONTINUED CLBING; AND EXITED MY AIRSPACE VERTLY. SINCE I HAD ONLY ISSUED 10000 FT; I KNEW THAT THE ACFT WAS BEING CTLED BY ZOB. AFTER 5 MINS; I GAVE UP TRYING TO CALL ZOB. THE ACFT WAS STILL FLASHING ON MY SCOPE; SO I RECALLED THE HDOF; AND DROPPED DATA ON THE ACFT. (THE ACFT WAS OUT OF 14000 FT AND OUTSIDE THE HORIZ LIMITS OF MY AIRSPACE.) HERE'S THE PROB: WHEN I RECALLED THE HDOF; THE FULL DATA TAG ON THE ZOB CTLR'S SCOPE DISAPPEARED AND WAS REPLACED WITH ONLY A LIMITED DATA BLOCK. THE ZOB CTLR FORGOT ABOUT THE ACFT AND LET HIM ENTER ANOTHER CTLR'S AIRSPACE WITHOUT APPROVAL; AN OPDEV. I FOUND OUT ABOUT THE DEV A WK LATER. IN THE COURSE OF THE INVESTIGATION; IT WAS DISCOVERED THAT ZOB DOES NOT HAVE DATA ON DEP UNTIL A HDOF IS INITIATED. CALLING BACK THE HDOF REMOVES THE DATA DISPLAYED ON THE ZOB SCOPE. NO ONE AT LAN KNEW THIS; AS OUR ARTS ALWAYS DISPLAYS FULL DATA ON ANY ACFT PROJECTED TO ENTER OUR AIRSPACE. I HAVE SPOKEN WITH CTLRS AT APCH CTLS ALL OVER THE COUNTRY - NOT ONE WAS AWARE OF THIS DIFFERENCE IN THE WAY THAT OUR RADAR DISPLAYS WORK. WHY WOULD ANY OF US ASSUME THAT DROPPING A TAG FROM OUR SCOPE WOULD AFFECT THE DISPLAY AT THE CTR? ON THE FLIP SIDE; THE CTR CTLRS WERE UNAWARE THAT WE ALWAYS HAD FULL DATA TAGS (UNLESS WE MANUALLY DROP DATA). AS A SOLUTION TO THIS PROB; THE QUALITY ASSURANCE DEPT AT LAN HAS DECIDED TO RETRAIN ME ON PROPER HDOFS -- EVEN THOUGH IT IS CLR FROM THE RECORDING THAT I WAS AWARE OF MY MISTAKE AND ATTEMPTED TO CORRECT IT (NO ANSWER FROM THE RECEIVING CTLR). THIS ACCOMPLISHED NOTHING. I SUBMITTED AN EMPLOYEE SUGGESTION THAT ALL APCH CTLRS NEED TO BE AWARE OF THE DIFFERENCES IN HOW THE RADAR DISPLAYS INFO. I REQUESTED THAT WE BE TRAINED IN THIS AND THAT SOP'S BE CHANGED TO ENSURE THAT THIS DOES NOT HAPPEN IN THE FUTURE. MY SUGGESTION WAS DENIED. I FEEL THAT THIS IS AN UNSAFE SIT. THIS TYPE OF PROB COULD HAPPEN AT ANY ARPT IN THE NAS; AND NEXT TIME IT MIGHT NOT JUST BE AIRSPACE THAT IS HIT.