. . . . .
SF–77Ort .
.
.SF–7750
G. Removing the
switch
(
—
Pm guti
(Rearfrme side)
@ Close the clam shell.
@ Open the opticalunit and sup~ it withthe’supporter.
@ Inseti the screwdriverthroughthe hole in the paper feed upper
frame guideand removethe krew that holdsthe uppercassette
paper emp~ switch.
Paperfeedupper
M
Uppera-tte paper
frameguide
A emDW*msnr
@ Remove the optical unit supporter,close the opticalunit, and
open the clam shell mechanism.
@ Cut the uppercassettepaper emp~ switchlead wiringtie at two
locationsand removethe wiringtie onthe paperfeed reinforcing
plate. Unfasten the lead wire connectorand remove the paper
emp~ switch.
/L..
.-
Cutwin~ ties
/
0 -?
\\
Uppermwtie paper
emp~*rrsor
a -..’\ \R\ \
!— ———.
Iower mssette
paper emp~
@ Remove the rear panel and right side panel R, in reference to
A-.
‘8
@
@
@
Retive the opticalunitsupporterand closethe opticalunit.
Push up the clam shell open lever and open the frames.
Removethepaper feed rollerU, in referenceto C@-@.
f
Removethe lowercassette p-r emp~ switchholdingscrew,
Cut the i~er cassettepaperemp~ switchlead wiringtie at two
locationsand removethewiringtie onthe paperfeed reinforcing
plate. Unfastenthe lead wire connectorand remove the paper
emp~ stich.
paper
hsen snap~ ‘
paper~- rollerU
H. Removingthe uppr ~ssette papersizedetect
PWB
@ Remove the rear panel and rightside panel R, in referenceto
A@-@.
@ Remove the opticalunitsupporterand closethe optid unit.
@ Pushup the clam shellopen lever and open the frames,
@ Remove the pa~r feed rollerU, in referen~ to C@-@.
@ Cut the uppercassettepaperemp~ switch’leadwiringtie at two
locationsand remove the wiringtie on the kck of the paper
4
feed reinforcingplate. Unfastenthe lead wire connector.
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