Sharp SF-7300 - Page 19

I
SF-73OO
SF-7X0
I
*
(19)
the Intensitv of the Ikht reflected from the or~lnel surface.
The sensor-wtiing a~eais (100)mm wide fromthe front.
Bla& lamp
Consistsof side lamps (SL1, 2) and v+ lamp installedon
the drum unti.In the reductionmode, Ight from the side lamp
is projected over the nomimage area of the drum to dis-
chargethe area so thattoner is notapplied to the non-image
area. The void lamp Ibht is appliedto the tape contactarea
to preventdeposi~ of toner.
Onlythe VW lamp is usedforthe SF-7300.
Void lamp acWation (figurewithinparenthesisis for the inch
series).
I
Magntiicatim ratio
SL1
Su
Xo.so
(XO.75)
ON
OFF
I
.
XO.70(XO.S4)
ON
ON
I
Void kmp dischargedarea
SL2
SL1
Side hmp (SL2) dbcharged area
~ Side famp
(SL1)
dischargedarea
(Frontframe side)
B.
Magnification operation (SF-7350 only)
When the magnificationratio is chosen, the steppingmotorrotates
to shiftthe positionof the lens, mirrors(No.4, No.5), and rotatethe
clutchconnectbngear.
When the slitass~ned to the gtien rnegniffcatfmratio is sensedby
the kns positionsensor (LPS), the steppingmotor st~s. Wth this,
the fens, minors (No.4, No.5), and the clutchspeed shiftgear stop
at theircorrectbcations.
(Silt posklon vs. magnlflatlon ratio)
Inchseries
AB
MhS --–---== ---
-,
i
1
x1.25
x1.0,
I
xO. 8
Xo. ;5 Xo. 7
Jo. 64
Iu
u
u
u
u U1
\
J
Stitpkte
(Lens and mirror moving range)
Enlmdnorrnd II
(Clutch speed shift gear poshion)
X.o.7
k1.0
xo. 64
xl. o
(Selection of speed shift gear)
When the protrusionin the clutch speed shiftwar pushes up the
gear, the &ro@ate gears engage.
D
shiftgear
1
s
*
Protrusion
cluta speedshiftgear
5-5