Toshiba e-studio3511, e-studio4511 Manual page 257

(12) 2nd transfer roller contact clutch
This clutch is an electromagnetic clutch which contacts or releases the 2nd transfer roller to the
transfer belt. The 2nd transfer roller contacts when this clutch turns ON and releases when it
turns OFF. Since the transport motor is its drive source, the clutch needs to be ON as long as
they are contacting.
It also controls the clutch not to turn more than 180 degrees by the spring and stopper.
(13) 2nd transfer roller cleaning brush
When the toner is remaining on the 2nd transfer roller, it may stain the rear side of the paper.
This brush cleanses the 2nd transfer roller to prevent stain. In addition, the 2nd transfer section
needs a periodical cleaning since this section has no mechanism discharging scraped toner.
(14) 2nd transfer roller position detection sensor
This sensor is a photointerrupter detecting whether the 2nd transfer roller is at its contacting
position or releasing position.
(15) Paper clinging detection sensor
When the thin paper which is out of specification passes through, the thin paper may cling to the
transfer belt surface. In this case, the paper clinging to the belt cannot be removed in a usual jam
processing and thus a service call occurs. To prevent this, the sensor detects whether the thin
paper is clinging to the transfer belt or not, and processes this case as a paper jam.
November 2003 © TOSHIBA TEC 14 - 3 e-STUDIO3511/4511 TRANSFER UNIT
04/05
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