SHARP SP1573 Technical Report

Date: Apr. 27, 1993

COPIER : SF-2022

1. PREVENTING DAMAGE IN THE PAPER LEADING EDGE BY CHANGING
THE STRUCTURE OF THE FUSER ROLLER HOLDING PLATE

2. CHANGE IN THE MAIN DRIVE FRAME A AND THE UPPER DR FRAME,
TO ERMIT SHARED USE

1. Preventing damage in the paper leading edge by changing the structure of the fuser
roller holding plate

1.Model name: SF-2022/2027/2035

No. : SP-1573

2.General: To avoid possible scratching on the paper as the paper leading edge hits the
fuser roller holding plate installed on the fuser unit upper pawl mounting
bracket, change is made to the structure of the fuser roller holding plate.

3.Reason: To prevent damage on the paper leading edge.

4.Description: Change is made to the fuser roller holding plate as illustrated below.

Upper pawl holding bracket

Fuser roller holding plate:
structural change

CPLTM4204FC51
CPLTM4204FC52

5.Action: (Factory action)

Running change since mid-Februar y 1993 for S F-2022 and S F-2027.
Since the first production for S F-2035.

SHARP CORPORATION Reprography Division

Shadowed area cut

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Green

C

2. Change in the main drive frame A and the upper DR frame, to permit shared use

1.Model name: SF-2022/2027/2035

2.General: The main drive frame A, the DR drive shaft , and the paper feed drive shaft

used in SF-2035 are changed to allow shared use.

3.Reason: To allow shared use of components because the thickness of frame chassis is
changed to increase its strength to av ert overload on the m ain drive block that
observed to increase the speed of SF-2035.

4.Description: Change in the main drive frame A thickness from 1.2 to 1.6 (SF-2022 and
SF-2027).
Change is made to the structure of t he DR dr ive shaft and the paper feed drive
shaft (SF-2022 and SF-2027).
Plastic washer added to us e (SF-2022 and SF-2027).
Thickness of the DR frame upper connector is increased 0.4mm more owing to
the change in the main drive frame A (SF-2022, SF-2027, and SF-2035).
Discontinued use of the DR frame connector spacer owing to the change in the
upper drive frame (SF-2022, S F-2027, and SF-2035).

Change in the upper DR frame (SF-2022, SF-2027, and S F-2035) will begin
from May 1993.
Owing to the change in the plate thickness of the drive frame A (1.2 to 1.6), the
connector of the upper DR frame relocates 0.4mm more f rom the connector
fitted to the drive f rame A. W hereas, the plat e thick ness is inc reased.

Upper DR frame

Connector

Shadowed area increased of its
thickness by 0.4mm.

2/5

However, the April production of SF-2022 and SF-2027 has the DR frame
connector spacer (PSHEP3369FCZZ) attached on the DR connector area,
similar as SF-2035.
Owing to the change in the press mold to increase the thickness, the use of the
DR frame connector space will be discontinued from May 1993 for SF-2022,
SF-2027, and SF-2035).

Described next are notes in replacing the main drive frame A and the upper DR
frame.

Old type upper DR frame

(LFRM-0733FCZZ)

New type upper DR frame

(LFRM-0733FCZ1)

Considering the field s erviceability, the DR connector spacer
(PSHEP3369FCZZ) will remain available.

5.Action: (Factory action)

From mid-April 1993 for t he main drive frame of SF-2022 and SF-2027.
From May 1993 for the upper DR fram e of SF-2022, SF-2027, and S F-2035.

Old type main drive frame A

(CFRM-0737FC01)

O

OO

New type main drive frame A

(CFRM-0737FC02)

(Can be used if the DR
connector spacer is added to
the upper DR frame.)

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Change in the main drive unit (SF-2022 and SF-2027 only) From April 1993.
* It had been changed from the f irst producti on for SF-2035.

Change in the shaft length (DR drive shaft)

Current

New

4.1

NSFTZ1743FCZZ

To cover the change in

0.4

the thickness of 0.4mm

NSFTZ1986FCZZ

Plastic washer: New
LX-WZ0094FCZZ

(Drive frame A)
Thickness changed
from 1.2 to 1.6.
CFRM-0737FC07

CFRM-0737FC02

Change in the shaft length (paper feed shaft) To cover
the change of 0.9 (thickness and plastic washer)

Current

New

4.5

NSFTZ1745FCZZ
Current To cover the change of

0.9

0.9 (thickness and plastic washer)
NSFTZ1987FCZZ

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Ref.

No.

1

2

Model

name

SF-2022

2027

SF-2035

SF-2022

2027

SF-2022

2027
SF-2035
SF-2022

2027

Version P/G No.

17
18 -70
20 -27
20 -21
20 -23

All

20 -901
16 -11
16

16 -12

16 -501

Current parts New parts

Parts code Parts code

Price
rank

CPLTM4204FC51 CPLTM4204FC52 AE

CFRM-0737FC01 CFRM-0737FC02 AV

Parts name

Fuser roller
mounting bracket

Main drive frame
A 60

NSFTZ1743FCZZ NSFTZ1986FCZZ AH DR drive shaft 60
NSFTZ1745FCZZ NSFTZ1987FCZZ AH

Paper feed shaft
60

DUNTM6560FCZZ DUNTM6560FC11 BQ Main drive unit 3

LFRM-0733FCZZ LFRM-0733FCZ1 AV Upper DR frame

PSHEP3369FCZZ Discontinued —

CFRM-0733FC51 CFRM-0733FC52 BS

DR frame
connector spacer

Upper DR frame
unit

Effec­tive
time

See
descrip­tion.

From
mid­April
1993

From
May
1993

<Inter c h an g e>

1. Interchangeable. 4. Not interchangeable.

2. C urr e nt t y pe c a n be u s ed i n place of n ew type.
New ty pe cann ot be us ed in place of curr ent type .

3. C urr e nt type ca nn ot b e us e d in p l ac e o f ne w ty p e.
New t y pe c a n be u s ed i n pl a ce of curren t type.

Parts m ar ke d wi th “ ” is im p ort an t fo r m ain ta in i ng t he sa fe ty of t he s e t. B e sur e t o rep l ace these pa rts wi th

!

5. Interchang ea bl e i f rep l ac e d wi th sa m e ty p es of
relate d pa r ts in use.

6. Others.

specified ones for maintaining the safety and performance of the set.

Inter­change­ability

1 Q’ty: 2

5

5

3

Note

Still
available
as a
service
parts.

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