Understanding these dcdiag results

Hi Experts,

Can anyone shed light on these dcdiag results?
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Domain Controller Diagnosis

Performing initial setup:
   Done gathering initial info.

Doing initial required tests

   Testing server: FTC\RPMDC00
      Starting test: Connectivity
         ......................... RPMDC00 passed test Connectivity

Doing primary tests

   Testing server: FTC\RPMDC00
      Starting test: Replications
         ......................... RPMDC00 passed test Replications
      Starting test: NCSecDesc
         ......................... RPMDC00 passed test NCSecDesc
      Starting test: NetLogons
         ......................... RPMDC00 passed test NetLogons
      Starting test: Advertising
         ......................... RPMDC00 passed test Advertising
      Starting test: KnowsOfRoleHolders
         ......................... RPMDC00 passed test KnowsOfRoleHolders
      Starting test: RidManager
         ......................... RPMDC00 passed test RidManager
      Starting test: MachineAccount
         ......................... RPMDC00 passed test MachineAccount
      Starting test: Services
         ......................... RPMDC00 passed test Services
      Starting test: ObjectsReplicated
         ......................... RPMDC00 passed test ObjectsReplicated
      Starting test: frssysvol
         ......................... RPMDC00 passed test frssysvol
      Starting test: kccevent
         ......................... RPMDC00 passed test kccevent
      Starting test: systemlog
         An Error Event occured.  EventID: 0x00000457
            Time Generated: 08/27/2004   16:15:50
            Event String: Driver ActiveTouch Document Loader required for
         An Error Event occured.  EventID: 0x00000452
            Time Generated: 08/27/2004   16:15:50
            Event String: The printer could not be installed.
         An Error Event occured.  EventID: 0x00000457
            Time Generated: 08/27/2004   16:15:50
            Event String: Driver HP Color LaserJet 4500 PCL 6 required for
         An Error Event occured.  EventID: 0x00000452
            Time Generated: 08/27/2004   16:15:50
            Event String: The printer could not be installed.
         An Error Event occured.  EventID: 0x00000457
            Time Generated: 08/27/2004   16:15:50
            Event String: Driver HP LaserJet 4100 PCL 6 required for
         An Error Event occured.  EventID: 0x00000452
            Time Generated: 08/27/2004   16:15:50
            Event String: The printer could not be installed.
         ......................... RPMDC00 failed test systemlog               <--- should I be concerned? How to correct this?

   Running enterprise tests on : rpmtechnology.net
      Starting test: Intersite
         ......................... rpmtechnology.net passed test Intersite
      Starting test: FsmoCheck
         ......................... rpmtechnology.net passed test FsmoCheck
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Thanks