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<html xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:st1="urn:schemas-microsoft-com:office:smarttags" xmlns="http://www.w3.org/TR/REC-html40"> <head> <META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=us-ascii"> <meta name=Generator content="Microsoft Word 11 (filtered medium)"> <o:SmartTagType namespaceuri="urn:schemas-microsoft-com:office:smarttags" name="place"/> <o:SmartTagType namespaceuri="urn:schemas-microsoft-com:office:smarttags" name="address"/> <o:SmartTagType namespaceuri="urn:schemas-microsoft-com:office:smarttags" name="Street"/> <o:SmartTagType namespaceuri="urn:schemas-microsoft-com:office:smarttags" name="PlaceType"/> <o:SmartTagType namespaceuri="urn:schemas-microsoft-com:office:smarttags" name="PlaceName"/> <![if !supportAnnotations]> <style id="dynCom" type="text/css"></style> <script language="JavaScript"></script> <![endif]> <style>  </style> </head> <body lang=EN-US link=blue vlink=purple> <div class=Section1> <a name="_Toc219619110"></a><a name="_Toc215885881"></a><a name="_Toc194966641"></a><a name="_Toc188408620"></a><a name="_Toc178134861"></a><a name="_Toc177863413"></a><a name="_Toc170621550">All,<o:p></o:p></a> <o:p> </o:p> Bill has provided some Last Call comments on the Scan Service specification.  I have included his comments on section 10 below.  I would like to add a discussion on this to today’s teleconference.  Most of the rest of his comments are straight forward and we can cover them if time permits.  <o:p></o:p> <o:p> </o:p> Pete<o:p></o:p> <o:p> </o:p> 10 Scan Service Theory of Operation<o:p></o:p> The Scan Service operates autonomously through three phases: initialization, online, and offline.<o:p></o:p> <o:p> </o:p> At power-up the Scan Service enters its initialization phase that initializes all its service attributes, connected subunits<a style='mso-comment-reference: W_1;mso-comment-date:20090115T1117'>, may </a><![if !supportAnnotations]><a class=msocomanchor id="_anchor_1" onmouseover="msoCommentShow('_anchor_1','_com_1')" onmouseout="msoCommentHide('_com_1')" href="#_msocom_1" language=JavaScript name="_msoanchor_1">[W1]</a><![endif]> perform a self-testing and may also test its Scan Device(s). After the initialization is successful, the Scan Service enters the “Down” state (an offline state) and performs a start-up operation that brings the service online, authenticates and registers its service with a service directory or announces its service to the network domain in which it resides. The Scan Service then enters the “Idle” state and becomes ready for service discovery and accepting service requests from Scan Clients. <o:p></o:p> <o:p> </o:p> The Scan Service accepts new requests as long as it’s not disabled and is in one of the four states: Idle, <a style='mso-comment-reference: W_2;mso-comment-date:20090115T1117'>Processing,</a><![if !supportAnnotations]><a class=msocomanchor id="_anchor_2" onmouseover="msoCommentShow('_anchor_2','_com_2')" onmouseout="msoCommentHide('_com_2')" href="#_msocom_2" language=JavaScript name="_msoanchor_2">[W2]</a><![endif]>  Stopped, or <a style='mso-comment-reference:W_3;mso-comment-date:20090115T1117'>Testing.  </a><![if !supportAnnotations]><a class=msocomanchor id="_anchor_3" onmouseover="msoCommentShow('_anchor_3','_com_3')" onmouseout="msoCommentHide('_com_3')" href="#_msocom_3" language=JavaScript name="_msoanchor_3">[W3]</a><![endif]> Performing an administrative <a style='mso-comment-reference:W_4;mso-comment-date:20090115T1117'>Disable</a><![if !supportAnnotations]><a class=msocomanchor id="_anchor_4" onmouseover="msoCommentShow('_anchor_4','_com_4')" onmouseout="msoCommentHide('_com_4')" href="#_msocom_4" language=JavaScript name="_msoanchor_4">[W4]</a><![endif]> () operation while in any state will stop the Scan Service from accepting new jobs. Performing an Enable() operation in any state while the Scan Service is disabled will enable new jobs to be accepted again.<o:p></o:p> <o:p> </o:p> A user submits a Scan Job through a local (via MFD UI) or remote (via local network or Internet) Scan Client to a selected target Scan Service that has the desired scan capabilities. While the service is enabled, a Scan Client can request any Scan Service operations specified in Sections 11.1 and 11.1.8.1. A Scan Client uses the CreateScanJob operation to submit a Scan Job on behalf of a user. A Scan Client needs to use the <a style='mso-comment-reference:W_5; mso-comment-date:20090115T1117'>CloseJob() </a><![if !supportAnnotations]><a class=msocomanchor id="_anchor_5" onmouseover="msoCommentShow('_anchor_5','_com_5')" onmouseout="msoCommentHide('_com_5')" href="#_msocom_5" language=JavaScript name="_msoanchor_5">[W5]</a><![endif]> operation to signal the last set of Hardcopy Scan Document input when the scanner’s input capacity is limited  and continuous sets of hardcopies need to be fed into the platen or ADF for a large Scan Job. The Scan Service places all submitted jobs in the ActiveJobs queue and schedules jobs for processing immediately or when a StartJob event is signaled based on job priority. A user may specify a <a style='mso-comment-reference:W_6;mso-comment-date:20090115T1117'>JobHoldUntilTime </a><![if !supportAnnotations]><a class=msocomanchor id="_anchor_6" onmouseover="msoCommentShow('_anchor_6','_com_6')" onmouseout="msoCommentHide('_com_6')" href="#_msocom_6" language=JavaScript name="_msoanchor_6">[W6]</a><![endif]> for a remotely submitted job to allow ample time for user to walk up to the scanner for placing his/her Hardcopy originals on the scanner. An administrator can also put a job in the ActiveJobs queue on hold via a HoldScanJob() operation preventing it being scheduled and a ReleaseJob() operation will release the job for scheduling again.<o:p></o:p> <o:p> </o:p> <a style='mso-comment-reference:W_7;mso-comment-date:20090115T1117'>When a Scan Job is released for scheduling and reached the top of ActiveJobs queue, the Scan Service immediately enters its Processing state</a><![if !supportAnnotations]><a class=msocomanchor id="_anchor_7" onmouseover="msoCommentShow('_anchor_7','_com_7')" onmouseout="msoCommentHide('_com_7')" href="#_msocom_7" language=JavaScript name="_msoanchor_7">[W7]</a><![endif]> . During job processing, the Scan Service can be interrupted by a “PauseScanService()” operation to enter the “Stopped” state. This allows a user to submit and process an urgent Scan Job or a job for another service, and a Resume() operation resumes previous Scan Job processing afterwards.<o:p></o:p> <o:p> </o:p> When there are critical conditions impacting Scan Serviceability during “Idle” or “Processing” state, either a C.Critical event is generated or an Administrative PauseScanService() is performed to bring the service to the Stopped state. From there the condition can be fixed by user’s intervention. Then either the Scan Service generates a ~C.Critical event or an administrator performs a Resume() operation to bring the Scan Service back to “Idle” or “Processing” state. Otherwise, if the Scan Service needs a ShutdownScanService() operation followed by a restart or ShutdownScanService() for testing, both will require a StartupScanService() operation to bring the service back to “Idle” state and then restart job processing again.<o:p></o:p> <o:p> </o:p> At any time all jobs in the ActiveJobs queue, whether being held, pending for scheduling, in processing, or being temporarily stopped from processing, can be canceled via a CancelScanJob() operation by an authorized user. A canceled job, completed job, or an aborted job due to processing errors can be placed back into ActiveJobs queue and restarted via the administrative <a style='mso-comment-reference:W_8;mso-comment-date:20090115T1117'>RestartJob</a><![if !supportAnnotations]><a class=msocomanchor id="_anchor_8" onmouseover="msoCommentShow('_anchor_8','_com_8')" onmouseout="msoCommentHide('_com_8')" href="#_msocom_8" language=JavaScript name="_msoanchor_8">[W8]</a><![endif]> () operation and be processed along with its Scan Documents again.<o:p></o:p> <o:p> </o:p> <o:p> </o:p> Peter Zehler <st1:place w:st="on"><st1:PlaceName w:st="on">Xerox</st1:PlaceName> <st1:PlaceName w:st="on">Research</st1:PlaceName> <st1:PlaceType w:st="on">Center</st1:PlaceType></st1:place> Webster Email: Peter.Zehler@Xerox.com Voice: (585) 265-8755 FAX: (585) 265-7441 US Mail: Peter Zehler Xerox Corp. <st1:Street w:st="on"><st1:address w:st="on">800 Phillips Rd.</st1:address></st1:Street> M/S 128-25E Webster NY, 14580-9701 <o:p></o:p> <o:p> </o:p> </div> <div style='mso-element:comment-list'><![if !supportAnnotations]> <hr class=msocomoff align=left size=1 width="33%"> <![endif]> <div style='mso-element:comment'><![if !supportAnnotations]> <div id="_com_1" class=msocomtxt language=JavaScript onmouseover="msoCommentShow('_anchor_1','_com_1')" onmouseout="msoCommentHide('_com_1')"><![endif]><![if !supportAnnotations]><a name="_msocom_1"></a><![endif]>  <![if !supportAnnotations]><a href="#_msoanchor_1" class=msocomoff>[W1]</a><![endif]>a.Unclear. <o:p></o:p> b. Do we power-up (a device concept) a service? <o:p></o:p> c. Scan Devices (also used elsewhere sould probably be  Scanner(s) or Scanner Subunits(s)<o:p></o:p> <![if !supportAnnotations]></div> <![endif]></div> <div style='mso-element:comment'><![if !supportAnnotations]> <div id="_com_2" class=msocomtxt language=JavaScript onmouseover="msoCommentShow('_anchor_2','_com_2')" onmouseout="msoCommentHide('_com_2')"><![endif]><![if !supportAnnotations]><a name="_msocom_2"></a><![endif]>  <![if !supportAnnotations]><a href="#_msoanchor_2" class=msocomoff>[W2]</a><![endif]>Processing as a service state must be distinguished from processing as a job state.<o:p></o:p> <![if !supportAnnotations]></div> <![endif]></div> <div style='mso-element:comment'><![if !supportAnnotations]> <div id="_com_3" class=msocomtxt language=JavaScript onmouseover="msoCommentShow('_anchor_3','_com_3')" onmouseout="msoCommentHide('_com_3')"><![endif]><![if !supportAnnotations]><a name="_msocom_3"></a><![endif]>  <![if !supportAnnotations]><a href="#_msoanchor_3" class=msocomoff>[W3]</a><![endif]>Testing is defined as an Off_Line state in 7.1.5.10.1.<o:p></o:p> <![if !supportAnnotations]></div> <![endif]></div> <div style='mso-element:comment'><![if !supportAnnotations]> <div id="_com_4" class=msocomtxt language=JavaScript onmouseover="msoCommentShow('_anchor_4','_com_4')" onmouseout="msoCommentHide('_com_4')"><![endif]><![if !supportAnnotations]><a name="_msocom_4"></a><![endif]>  <![if !supportAnnotations]><a href="#_msoanchor_4" class=msocomoff>[W4]</a><![endif]>Observation: Disable does not  change service state, as state is defined.<o:p></o:p> <![if !supportAnnotations]></div> <![endif]></div> <div style='mso-element:comment'><![if !supportAnnotations]> <div id="_com_5" class=msocomtxt language=JavaScript onmouseover="msoCommentShow('_anchor_5','_com_5')" onmouseout="msoCommentHide('_com_5')"><![endif]><![if !supportAnnotations]><a name="_msocom_5"></a><![endif]>  <![if !supportAnnotations]><a href="#_msoanchor_5" class=msocomoff>[W5]</a><![endif]>CloseJob is not a defined operation.<o:p></o:p> <![if !supportAnnotations]></div> <![endif]></div> <div style='mso-element:comment'><![if !supportAnnotations]> <div id="_com_6" class=msocomtxt language=JavaScript onmouseover="msoCommentShow('_anchor_6','_com_6')" onmouseout="msoCommentHide('_com_6')"><![endif]><![if !supportAnnotations]><a name="_msocom_6"></a><![endif]>  <![if !supportAnnotations]><a href="#_msoanchor_6" class=msocomoff>[W6]</a><![endif]>This appears to be in an administrator operarion, not for a user.  Further, that does nto appear to be the purpose of JobHoldUntilTime.<o:p></o:p> <![if !supportAnnotations]></div> <![endif]></div> <div style='mso-element:comment'><![if !supportAnnotations]> <div id="_com_7" class=msocomtxt language=JavaScript onmouseover="msoCommentShow('_anchor_7','_com_7')" onmouseout="msoCommentHide('_com_7')"><![endif]><![if !supportAnnotations]><a name="_msocom_7"></a><![endif]>  <![if !supportAnnotations]><a href="#_msoanchor_7" class=msocomoff>[W7]</a><![endif]>Job in Processing state vs Service in processing state.  Presumably, if there were a previous job being processed, the Servuce would already be in a processing state?<o:p></o:p> <![if !supportAnnotations]></div> <![endif]></div> <div style='mso-element:comment'><![if !supportAnnotations]> <div id="_com_8" class=msocomtxt language=JavaScript onmouseover="msoCommentShow('_anchor_8','_com_8')" onmouseout="msoCommentHide('_com_8')"><![endif]><![if !supportAnnotations]><a name="_msocom_8"></a><![endif]>  <![if !supportAnnotations]><a href="#_msoanchor_8" class=msocomoff>[W8]</a><![endif]>RestartJob appears elsewhere but is not a defined operation.<o:p></o:p> <![if !supportAnnotations]></div> <![endif]></div> </div> </body> </html>