SHARP SF-7700
Service Manual

SF-nOo SF-n50
@ Remove the two sensor PWB holding screws from the paper ent~ side and remove the PWB as shown in the figure. ~ Move the paper stop roller shaft towardsthe rear frame side (amwhaad A) and move the shaft throughthe hole on the front frame side. Remove tie shaft from the paper exit side. (arrow head B�to C).

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Remove thePWBholdiWWrews andIifftherearframesidePWB to remove fromtheframe k

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~R�ear frameside)

>Jgmoving the lower cassettepaper size detect .7 Remove the rear panel and right side panel R, �in reference to
A~-@. Remove the optical unit supporterand close the optical unit. Push UDthe clam shell oDen lever and open the frames. Remove the paper feed ;oller L, in referencefo D@-@. Cut the lower cassette paper empty switchlead smring wiring tie at two locationsand remove another wiringtie on the paper feed reinforcingplate. Unfasten the lead wire connector. /

@ Remove the f~r screws that ~re her paper guide and remove it.

K. Removingthe lower paperstop roller @Push up the clam shell open lever and open the frames.
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the paper stopper front,

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PS front, ier papergutie t

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Wringtie ~nng

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@ Turn aver the paper stop front, lower paper guide and remove the two paper stop lower springs.Removethe paper stop roller shaft. PS fowar ~ng s

<; Remove the WO sensor PWB holding ~rews from the paper entrysideand removethe pWB inthe me manneras re~Ving the uppercassefiepaper Size dete~ p~ as showninthefigure. J. Removing the upper paperstop roller �.Remove the rear panei and right side panel R, in referenCeto A.�Q-~ .-,.RemovEthe optical unit s�up~tier and close the opticalUnit.. ~ push up the clam shell own. lever and open the frameS. I Removethe Paner Stw roller E-rina on the rear frame side and removethe paper stop clutch. �*OrE: ne paperstopclutchis held by a pin, it has to be replaced when re-assembling. �� aemove two E-rings on the rear frame side of the ps roller, �~shlng.frontframe side E-ring, and the bushing.

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NOTE: The D~ut portion of the shaft must face in the direction shown in the figure, when insating the lower paper stop roller. 0-0

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