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Date: Jul. 31, 1995
COPIER : SF-2116
No. : SP-1916
1.PRECAUTIONS TO BE TAKEN DURING
MAINTENANCE TO THE OPTICAL UNIT
2.REGARDING PROBLEMS WITH THE L4-01
1.Precautions to be taken during maintenance to the optical unit.
1.Model Name: SF-2116/ 21 18/1016/1018
2.General: In order to help prevent problems during market use, please take note of the following.
3.Description: Do not handle the zoom mechanism for models with only one cam and one motor in the
same way as has been done for past models (SF-2022/2027, which have two motors).
If you move the lens of the one motor models by hand, (as was the procedure for the
two motor models), the lens drive wire is likely to get caught in the lens carriage. (see
Fig. 1).
Fig. 1
Lens drive wire
Lens carriage
SHARP CORPORATION Reprography Division
1/4
Green
C
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If you must move the lens by hand, do it by rotating the step gear which is connected to
the mirror motor. (See Fig. 2)
Fig. 2
4/5 Mirror UN
Step gear
(rotating this gear moves
the lens)
Lens
Base sticker
If the lens wire has come off of the teeth of its guide, please carry out the following
procedure.
(1) Remove the lens wire (see the Service Manual)
(2) When reattaching the wire, place a pin
or screwdriver (as a temporary fixing
measure) in the opening which you will
find slightly closer to the other end than
the home position and then proceed to
attach the wire. (See Fig. 3)
The original home position
Fig. 3 - the lens carriage in its temporarily fixed position
(3) While the pin or screwdriver of (2) is still
attached, use φ4 pins or M4 screws to fix
the openings in the scaling cam drive
gear to the openings in the zoom base
temporarily. Then attach the scaling
drive gear. (See Fig. 4)
There is a sticker here
φ4 pins (or longer M4 screws) used
as a temporary f i xing measure
The scaling cam drive gear
2/4
Fig. 4 - Attaching the scaling cam drive gear
Note: this opening