SHARP SP1951 Technical Report

Page 1
Date: Nov. 7, 1995
COPIER : SF-2116
1. IMPROVEMENT MEASURE FOR THE LOWER PAPER FEEDING UNIT.
2. CHANGE IN WORM SCREWS IN THE CLUTCH TO PREVENT WARPING.
3. ADDITION OF PLASTIC BAGS FOR THE PAPER DELIVERY TRAY GUIDE.
4. IMPROVEMENT MEASURE FOR F/R TRANSFER CURRENT BALANCE.
5. IMPROVEMENT MEASURE TO PREVENT THE EXHAUST OZONE FILTER FROM TEARING.
No. : SP-1951
1. Improvement measure for the lower paper feeding unit.
1.Model name: SF-2018/1018, SF-CM15.
2.General: The following changes and additions of parts in the lower paper feeding unit have been
3.Description: (1) In order to maintain the spatial distance with the clutch, the distance on the side of the W-base plate delivery roller shaft clutch has been shortened by 0.5 mm.
(2) One of the fixing screws of the base plate paper delivery plate has been
discontinued to improve the return movement of the paper delivery bearing holder
23
(P/G -21).
(3) A guide sheet has been added to the vertical delivery guide unit to improve the
detection performance of the open/closed detection switch.
P/G NO.
23 21
Discontinued
P/G NO.
Transport guide sheet no. 1
P/G NO.
Transport guide sheet no. 3
38
Transport guide sheet no. 2
Transport guide sheet no. 3
Transport guide sheet no. 2
SHARP CORPORATION Reprography Division
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Green
C
Page 2
4.Action: (1) → From the start of 1995 August production.
(2) → From 1995 mid-April production. (3) → From the start of 1955 mass production.
2. Change in worm screws in the clutch to prevent warping.
1.Model name: SF-2116/ 2118/1016/1018, SF-CM15.
2.General: The W-point worm screws have been changed and the assembly process is now to be
carried out in-house instead of at the makers. These changes have been carried out in order to stabilize the binding torque of the worm screws used in the clutches listed below.
PS Roller clutch. (P/G NO. -12) W-Base plate electro-magnetic clutch. (P/G NO. -11) 30 T Electro-magnetic SP clutch. (P/G NO. -14)
19 23 17
3.Description: With the changes carried out as described above, the supply of the clutch and the worm
screws as service parts has been changed, and the parts are now offered separately.
4.Action: From the start of 1995 October production.
3. Addition of plastic bags for the paper delivery tray guide.
1.Model name: SF-2116/ 2118/1016/1018.
2.General: There was a possibility of the grease, etc. of the paper delivery tray guide soiling other
parts which have been packaged in the same boxes, and to alleviate this problem packaging method of the paper delivery tray guides has been changed. The paper delivery tray guides are now put in plastic bags before being packaged in the shipping boxes.
3.Action: From 1995 mid-August production.
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Plastic bag
Paper delivery guide tray
Page 3
4. Improvement measure for F/R transfer current balance.
1.Model name: SF-2116/ 2118/1016/1018.
2.General: The load of the TC pressure spring on the F side has been increased in order to
improve the balance of the F/R transfer current. (The transfer current of the F side has a tendency to be relatively lower than the transfer current on the R side.
3.Description: The load of the TC pressure spring has been changed from 500 g to 620 g. The color of
the sprig has been changed to black to distinguish it from the spring on the R side. (The change has been carried out on only the spring on the F side.)
4.Action: Japanese production: From the start of 1995 July production.
French (SMF) production: From the start of 1995 August production.
5. Improvement measure to prevent the exhaust ozone filter from tearing.
1.Model name: SF-2116/ 2118/1016/1018.
2.General: There was a danger of the exhaust ozone filter tearing, and the tab coming in contact
with the VFM, causing abnormal noise, caused by factors such as vibrations and handling during shipping. To alleviate this problem, the following improvement measure has been carried out.
3.Description: The shape of the tab has been changed as an improvement measure to prevent the
ozone filter from tearing.
Old
New
Note :No changes have been carried out on the ozone filter itself. Further more, once the ozone filter has been installed and set, there is no danger of the filter tearing. The original filters are therefore being used as service parts.
4.Action: From the start of 1995 September production.
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Page 4
Ref.
No.
1
(1)
1
(2)
Model
name
SF-2118
Version P/G No.
23 -4 NROLR1080FCZ1 NROLR1080FCZ2 AR
23 -1
Current parts New parts
Parts code Parts code
XEBSD40P12000
(Q’ty:8)
(Q’ty:7) AA Screw(M4X12)
Price
rank
Parts name
W base transport roller
Effec-
tive
time
1st lot
’95/8
Mid-
’95/4
Inter-
change-
ability
3
Note
1
(3)
SF-CM15
SF-2116
2
SF-2118 SF-1016 SF-1018
4
<Interchange>
1. Intercha ng ea ble. 4. N ot i nt er ch an ge ab l e.
2. Current type can be used in place of new type. New type cannot be used in place of current type.
3. Current type cannot be used in place of new type. New type can be used in place of current type.
Parts marked with “ ” is important for maintaining the safety of the set. Be sure to replace these parts with
specifie d on es fo r m ai n ta in i ng t he s a fe ty and perfo r ma nc e o f th e s et .
21
38
19 -12 PCLC-0250FCZZ PCLC-0250FCZ1
All
23 -11 PCLC-0241FCZZ PCLC-0241FCZ1 W base clutch
17 -14
19
23
17
19 -35
!
PCLC-0237FCZZ PCLC-0237FCZ1
LX-BZ0193FCZZ AB Screw 6
MSPRC2280FCZZ MSPRC2417FCZZ AD
PSHEP4055FCZZ
PSHEP4056FCZZ Guide sheet 2 PSHEP4057FCZZ Guide sheet 3
5. Interchangeable if replaced with same types of relate d parts in use .
6. Others.
Guide sheet 1
AE
PS roller clutch
AX
30T electro magnetic spring clutch
TC pressure spring F
1st lot
1st lot ’95/10
3 1
1 Change on the F side only.
6
1
4/4
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