COPIER : SF-2050
1. MEASURE TO IMPROVE PROBLEMS OF SCATTERING OF THE TONER IN THE
DEVELOPING UNIT.
2. MEASURE TO ESTABLISH INTERCHANGEABILITY OF PARTS IN THE
DEVELOPING UNIT.
3. MEASURE TO ESTABLISH INTERCHANGEABILITY OF THE DEVELOPING UNIT.
No. : SP-2208
1. Measure to improve problems of scattering of the toner in the developing unit.
1.Model Name: SF-2050
2.General: There was a possibility of scattering of the toner in the developing unit caused by
damage which can occur to the drum in the developing unit when the DV side seal F
comes in contact with the drum. As a measure to alleviate this problem, a change has
been carried out in the DV side seal F, making it thinner to avoid contact with the drum.
[Old] [New]
PSEL-0648FCZ1 → PSEL-0767FCZZ
3.Action: From the 1st lot of 1997 October production.
2. Measure to establish interchangeability of parts in the developing unit.
1.Model Name: SF-2050
2.General: Aiming for part interchangeability, we have changed and added to the developer unit’s
internal parts. Part interchangeability is as follows.
[Old] [New]
PSEL-0647FCZ1 PSEL-0768FCZZ
(Joint seal) (Joint seal HP)
NSFTZ2173FCZZ
(Stir shaft)
LPINS0155FCZZ CSFTZ2495FC51
(Straight pin) (Stir shaft HP UN)
NHAN-0009FCZZ
(Stir fin)
SHARP CORPORATION Reprography Division
1/3
Green
C
[Old] [New]
NSFTZ2174FCZZ
(Stir roller shaft)
NHAN-0018FCZZ
(Stir fin A)
NHAN-0019FCZZ CSFTZ2496C51
(Stir fin B) (Stir roller shaft HP UN)
NHAN-0007FCZZ
(Stir fin C)
LPINS2172FCZZ
(Straight pin)
NSFTZ2172FCZZ NSFTZ2494FCZZ
(Stir joint shaft) (Stir joint shaft HP)
PRNGP0005GCZZ PRNGP0097FCZZ
(V ring V-5) (NOK V-8)
Location of the added O-ring HZ
PRNGP0098FCZZ
(O ring HZ)
B-CL gear 20T
4E
ø2-10 Straight pin
3.Action: From the 1st lot of 1997 October production.
Waste toner bushing
Added
4E
4E
4E
38T gear
ø2-12 Straight pin
Waste toner bushing
DVBOXAs
Stir shaft HP As
Stir roller shaft HP As
2/3