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Date: Apr. 20, 1993
COPIER : SF-2022
RELEASE OF A NEW VERSION PROGRAM ROM (VER. 5.00 TO 5.01)
1. A NEW TEST COMMAND 25-03 ADDED TO ELIMINATE APPEARANCE OF A
BACKGROUND AT AN EARLIER STAGE DEPENDING ON OPERATING CONDITION
2. ADF COUNTER READING DOES NOT MATCH WITH THE DUPLEX COUNTER READING
No. : SP-1565
1.Model name: SF-2022/2027
2.General 1. A timer incorporated to ex tend t he preliminary dr um rotation t ime during
warmup
2. Correcting discrepancy of t he ADF and duplex counter contents
3.Reason: 1. To get toner control operation stabilized during power on
2. To correct the disc repancy of the A DF counter c ontents agai nst duplex
counter contents
4.Description: 1. Test command 25-03 is newly employed to allow extending the preliminary
drum rotation time during the warmup cycle. To avoid appearance of
background in field depending on the operating condition(i.e. not so many
copies produced in a day), a test command parameter “30" should be entered.
It had been factory set to ”0", in which case the preliminary drum rotation will
be two seconds as is now.
Setup method: Do the test command 25-03 and enter 30.
(Enter “30" to extend the pre-rotation by 30 seconds.)
=
C0=2 5 PSW 3 0 PSW3PSW
2-➀ Number of document pages l oaded in A DF do not match with t he number
of pages of the ADF/ RADF counter.
2-➂ The bug that counter counts double pages when using the duplex.
These two bugs are corrected.
With these software rev isions, there are changes in the part s codes of the
ROM and the main PWB.
Current New
ROM VHI27C01007FC VHI27C01009FC
Version numbe Ver 5.00 Ver 5. 01
Main PWB CPWBN0928FC52 CPWBN0928FC54
SHARP CORPORATION Reprography Division
1/2
Green
C
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5.Action: (Factory action)
Since mid-February 1993.
Ref.
Model
No.
SF-2022
<Interchange>
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 c a 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 cur ren t ty p e.
Parts m ar ke d wi th “ ” is im p ort an t fo r m ain ta in ing the sa fe ty of the s e t. B e sur e t o rep l ace these pa rts wi th
specified ones for maintaining the safety and performance of the set.
name
2027
Version P/G No.
32 -67
All
9-4
32 -901
!
Current parts New parts
Parts code Parts code
VHI27C01007FC VHI27C01009FC BB
CPWBN0928FC52 CPWBN0928FC54 CC Main PWB 6
Price
rank
5. Interc ha ng ea ble i f r ep l ace d wi th s a m e typ es of
relate d pa r ts in us e.
6. Others. (The existing main PWB can be used,if its
Parts name
EP-ROM
(Ver 5.01)
ROM is replaced with the new version ROM.)
Effective
time
Mid-Feb.
1993
Interchangability
3
Note
SP-1552
SP-1558
2/2