Problem statement : Digital Printers ...drums ...roller


                    further to as published , envisaged by this individual in projects.pdf and elsewhere on
                    this url or uri

                    eg: printers bundled or usable with  PC or computer peripherals.....usually used with or for 
                        desktop computing.


Opportunity a:   life-span of the roller-drum.

                existing mechanism's of picking-up the paper from the paper tray.

                ability to use news print-roll kind of packaging or bundling of paper ...along with a paper-cutter,

                thus ability to do away with the limitation's of printer's and paper tray to use fixed or standard dimension's,
    
                thus ability to virtually print on any dimension of choice ...given the scope and context of ability to
                [virtually] calibrate the printable area (a4 ...a6 ...scalable to any length)


                thus a new's-print-roll spinnable using standard mechanical-means viz. a motor or a free-wheel suspension
                based roller that can spin or rotate ...by controlling or using a air-blower over the free-wheel.


                potential design of such printer could be derived from printers used in ...CAD and GIS plotting or imaging

Opportunity b: in the existing standard desktop printers (variable print paper sizes of either a4 ...a6) etc
               eg hp desk jet series, laser series ...canon series used in desktop environments.

               the mechanism's used for picking up the paper from the paper tray ...can be modified for
               deriving superior ...technology.

               the roller or drum ...that use's a wet-surface....or kind of ability to create vaccum or low-pressure on
               the side of the roller such that a paper can be drawn.

               as also a blower of air to aid ...freeing up of the paper-sheet's while being picked-up or such that loose-sheets
               can be seperated ....kind of illustratable methodology ...of the hand based drawing and simulating animation using
               frame's  or counting currency-notes.

               thus a innovative material-surface[derivable out of polymer] , ability to use or exploit viscocity that aids in 
               picking up paper from paper tray can be exploited.
                            
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Note: The above problem statement having been encountered in various scenarios
      and detailed in various 'Proof of concepts' as mentioned in 
      
       http://uk.geocities.com/ravivenkatus/projects.pdf
       http://ravishankarkv.tripod.com/projects.pdf
        ....apply appropriate
      'use-case' modeling, rationalize and arrive at a workable and feasible 
       solution both commercially and techinically viable.