SHARP SP1689 Technical Report

Page 1
Date: Jan. 20, 1994
COPIER : SF-2035
1. CHANGE IN REVERSE ROLLER LEVER SPRING IN THE PAPER FEEDING UNIT.
2. ADDITION OF REINFORCEMENT MYLAR TO THE OPTICAL BASE PLATE. (TO IMPROVE HARNESS PROCESSING).
3. PERMANENT TROUBLE SHOOTING MEASURES FOR H4 TROUBLE (H4 TROUBLE SHOOTING).
4. ELIMINATION OF THE FREE BUSHING IN THE OPERATION PANEL TO IMPROVE PRODUCTIVITY (IN EXPORT MODELS BOUND FOR SEEG ONLY).
No. : SP-1689
1. Change in reverse roller lever spring in the paper feeding unit.
2.General: The load of the reverse roller lever spring in the paper feeding unit has been changed
to prevent paper miss feeding.
3.Description: The load of the reverse roller spring has been increased from 275 g to 350 g. MSPRC1943FCZZ MSPRC1943 FCZ1
4.Action: (Factory action) SF-2035 / 2027 / 2022: From 1993 Mid-December production. SF-CM 11 / D 19 / D 20 / D 21: From 1994 January production.
2. Addition of reinforcement mylar to the optical base plate.
1.Model name: SF-2035 / 2027 / 2022
2.General: There is a danger of connection between the upper portion of the copy lamp area and
the operation main middle harness (P/G 2 - 35) which is inserted into the two cut-away sections in the upper area of the feeding side of the optical base plate. To alleviate this problem reinforcement mylar has been added.
3.Description: Two sheets of reinforcement mylar have been added to the optical base plate, to
prevent the harness from becoming wedged into the optical base plate.
Added reinforcement mylar: PSHEP3571FCZZ (Quantity: 2).
SHARP CORPORATION Reprography Division
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Green
C
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Front side.
Added reinforcement mylar.
Rear side.
Optical base plate.
4.Action: (Factory action) From 1994 January production.
3. Permanent trouble shooting measures for H4 trouble.
1.Model name: SF-2035. (Information concerning models SF-2022 / 2027 has been reported in T/R
SP-1638.)
2.General: Information concerning H4 trouble shooting was reported in T/R SP-1597, but the main
harness of the lower unit has been changed as a permanent trouble shooting measure.
3.Description: The HL control line of the main harness in the lower unit has been installed with 1KΩ of
resistance. In accordance with this change the relay harness, open connector and binding band have all been eliminated.
Main harness of the lower unit:
DHAI-2120FCZZ DHAI-2282FCZZ
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For field action please use DKIT-0325FCZZ
4.Action: (Factory action) From 1994 February production.
4. Elimination of the free bushing in the operation panel to improve productivity (in export models bound for SEEG only).
1.Model name: SF-2035 (export model bound for SEEG).
2.General: Processing procedure for the harness in the operation panel has been changed and a
free bushing has been eliminated to improve productivity.
3.Description: The processing procedure of the AUD relay harness has been changed and a free bushing has been eliminated. These changes are shown in the figure below.
Liquid crystal display control circuit board.
Operation control stay grounding line.
Liquid crystal display control board.
Operation control circuit board (R).
Operation main harness.
Eliminated free bushing.
AUD relay harness.
Free bushing.
Operation panel.
4.Action:
(Factory action)
From 1994 February production.
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Ref.
Model
No.
SF-2035
1
SF-CM11
SF-D19
SF-2035
2
3 SF-2035
4 SF-2035 SEEG
<Interchange>
1. Interchangeable. 4. Not interchangeable.
2. C urr e nt t y pe c a n be u s ed i n p la ce of new t ype . New ty pe cann ot be us ed i n place of curr ent type .
3. C urre nt ty pe cann ot be used i n place of new ty pe. New t y pe c a n be u sed in p la c e of current ty p e.
Parts m ar ke d wi t h “ ” is i mp ort an t fo r m a inta i ni ng the sa fe ty of the s e t. B e su r e to re pl ac e t he se pa r ts wi t h
specified ones for maintaining the safety and performance of the set.
name
2027 2022
D20 D21
2022 2027
Version P/G No.
26 -36 MSPRC1943FCZZ MSPRC1943FCZ1 AB
40 -36 MSPRC1943FCZZ MSPRC1943FCZ1 AB ’94/1 3
66 -36 MSPRC1943FCZZ MSPRC1943FCZ1 AB ’94/1 3
All
12 PSHEP3571FCZZ AB
9-3
DHAI-2279FCZZ Eliminated Relay harness ’94/2 5 — QCNCM0347FCZZ Eliminated Open connector ’94/2 5 — LBNDJ0013FCZZ Eliminated Binding band. ’94/2 5
2
!
Current parts New parts
Parts code Parts code
DHAI-2120FCZZ DHAI-2282FCZZ BM
LBSHC0295FCZZ Change in quantity Free bushing ’94/2
Price
5. Interchangeable if replaced with same types of relate d parts in use .
6. Others .
Parts name
rank
Reverse roller lever spring
Reinforcement mylar
Lower unit main harness
Effec-
tive
time
Mid-
Dec.
1993.
’94/1 Q’ty: 2
’94/2 5
Inter-
change-
ability
3
Note
*
Q’ty:
2 to 1
* Supply to be continued as maintenance and service parts.
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