
Date: Feb. 25, 1993
COPIER : SF-7370
[Parts changes]
1. OPERATION BOARD PARTS CHANGES
2. IMPROVING THE DEVELOPING UNIT MAGNETIC SHEET SEPARATION
3. ADDING A WASHER TO THE CLUTCH UNIT AREA
4. USE OF A NEW AC POWER SUPPLY CABLE
1.Operation board parts changes
1.Model name: SF-7320/7370
No. : SP-1541
2.General: Note the following changes to the parts in the operation board.
3.Description: 1. Change in the print switch phototransistor (LD313) (to eliminate missing
display area)
2. Change in the diodes (D307-D311) (to provide more tolerance against
surge current)
3. Change in the operation panel screws
1. LD313 change
VHPSLR-320MC/ VHPSLR-40MC// Q’ty: 1
2. D307-D311 changes
VHDDSS133HV-1 VHDDSS131HV-1 Q’ty: 5
3. Screw changes
1) C03XCPSD30P06000 XEPSD30P06000 Q’ty: 6
2) C04XCPSD30P08000 XEPSD30P08000 Q’ty: 3
4.Action: (Factory action)
1. Since July 1992.
2. Running change since October 1992.
3. Running change since October 1992.
2. Improving the developing unit magnetic sheet separation
1.Model name: SF-7320/7370/7300/7350
SHARP CORPORATION Reprography Division
1/3
Green
C

2.General: Owing to variance in the cemented strength, the magnetic sheet might possibly become
separated after years. To avoid this, the material of the magnetic sheet is now changed.
3.Phenomenon: Toner dusting owing separation of the magnetic sheet.
4.Description: Material of the magnetic sheet is changed from rubber magnet to PET. From the
mid-May to November 1992, a glue was applied to avoid it from separating.
Magnetic sheet material change
(rubber magnet to PET)
5.Action: (Factory action)
Since December 1992. Since January 1993 for the SMF production.
3. Adding a washer to the clutch unit area
1.Model name: SF-7350
2.General: As the protuberance behind the upper frame hits the clutch unit when installing the
clutch, it might be installed askew. To avoid this, a washer is employed.
3.Description: Two 0.5 thick washers that comprise 1.0 thick are inserted into the clutch unit holding
screw behind the upper frame to avoid the problem.
Two 0.5 thick flat washers
Screw, M4x10
4.Action: (Factory action)
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Behind the upper frame
Since August, 1992.
Clutch unit

4. Use of a new AC power supply cable
1.Model name: SF-7320/7370
2.General: Owing to the following reason. the AC power supply cable is procured from another
vendor.
3.Reason: Due to parts supply situation.
4.Description: After this change, a change is also involved in its parts code.
QACCV6420QCZZ QACCV6420QCN2
5.Action: (Factory action)
Since October 1992.
Ref.
Model
No.
SF-7320
1
SF-7370
2
3 SF-7350
SF-7370
4
<Interchange>
1. Inte r c ha ng ea bl e. 4. Not in terchang ea bl 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
specified on es fo r m ai n ta ini ng t he s a fe ty an d pe r fo rmance of the set .
name
7370
7320
7350
7300
7320
7350
7300
Version P/G No.
24 -5
24
24 -2
24
All
2 -C03
2 -C04
12 -47
6
21 -21
SEEG
!
Current parts New parts
Parts code Parts code
VHPSLR-320MC/ Quantity change AB
— VHPSLR-40MC// AB
VHDDSS133HV-1 Quantity change AA
— VHDDSS131HV-1 AA
XCPSD30P06000 XEPSD30P06000 AA
XCPSD30P08000 XEPSD30P08000 AA
PSHEZ2094FCZZ PSHEP3282FCZZ AC
— LX-WZ0144FCZZ AA
QACCV6420QCZZ QACCV6420QCN2 AU
Price
rank
5. Interchangeable if replaced with same types of
related parts in use.
6. Othe r s.
Parts name
Phototransistor
(LD313)
Phototransistor
(LD313)
Diode
(DSS133HV)
Diode
(DSS131HV)
Screw, M3x6
Screw, M3x8
Magnetic sheet
Washer
(05 thick x 2)
AC power supply
cable
Effective
time
’92/7 –
’92/7 – Q’ty: 1
’92/10 –
’92/10 –
’92/10 3 Q’ty: 6
’92/10 3 Q’ty: 3
’92/12 3
’92/8 – Q’ty: 6
92/10 1
Inter-
change-
ability
Note
Q’ty:
4 to 3
Q’ty:
12 to 7
Q’ty: 5
(D307~
D311)
3/3