SHARP SP1892 Technical Report

Date: Jul. 25, 1995
COPIER : SF-2014
1.CHANGE IN THE VFM AND DISCONTINUANCE OF THE VFM PWB.
2.MEASURES FOR PREVENTING THE CRIM PING OF THE HEATER LAMP LEAD WIRE IN THE FUSING UNIT.
3.TROUBLE SHOOTING DETEC TI ON MALF UNCTIONS IN THE OPERATION PANEL KEYS.
4.MEASURES TO PREVENT VOLTAGE CHANGES IN THE COPY LAMP DUE TO VOLTAGE FLUCTUATION IN THE POWER SUPPLY.
5.MEASURES FOR PREVENTION OF H2 TROUBLE.
No. : SP-1892
1. Change in the VFM and disc ontinuance of the VFM PWB.
1.Model name: SF-2014/21 14/2214 SF-2014/21 14/2214 (SEEG, UK only)
2.General: The VFM (exhaust fan) installed in the upper frame is a one-speed model. By using a VFM PWB, this fan had been converted to two-speed capacity, but to improve productivity the VFM itself has been changed to a two-speed model and the VFM PWB has been discontinued. This change does not affect the functionability of the unit in any way. (The change in VFM and t he addition of the VFM PWB was reported in Technical Reports no. S-154.)
3.Action: From the start of 1995 May production.
2. Measures for preventing the crimping of the heater lamp lead wire in the fusing unit.
1.Model name: SF-2014/21 14/2214 Z-800, SN-1420/1430(USA only)
2.General: There is a danger of the heater lamp lead wire in the fusing unit becoming crimped when the fusing cover is attached to the fusing unit during the assembly stage of the production process. To alleviate this danger, the rib on the inside surface of t he fusing cover has been cut away.
3.Description: The ribs designated by nos. through in the figure below have been cut away.
Inside surface of the fusing cover
SHARP CORPORATION Reprography Division
1/4
Green
C
4.Action: Japanese production: Running change from 1995 mid-May production. Chinese(SOCC) production: Running change from the start of 1995 May production. French(SFM) production: Running change from the start of 1995 J uly production.
3. Trouble shooting detection malfunctions in the operation panel keys.
1.Model name: SF-2014/21 14/2214 Z-800, SN-1420/1430(USA only)
2.General: Problems have arisen in the production process when the edge of the panel keys (3, 4, 7, 8, 9) are depressed causing the key to tilt to a diagonal position. This causes it to come in contact with the edge of the switch and makes it difficult for the switch to register. To alleviate this problem, a rib has been added to the section of the panel key which depresses the switch.
(Old) (New)
3.Description:
Added rib
Contact is made here
The change described above has already been carried out on all keys other than the panel keys.
4.Action: Japanese production: Running change from 1995 mid-May production. Chinese(SOCC) production: Running change from 1995 mid-June production. French(SFM) production: Running change from 1995 mid-July production.
4. Measures to prevent voltage c hanges in the copy lamp due to voltage fluctuation in the power supply.
1.Model name: SF-2014/21 14/2214 (only for models bound for countries using the 120V series) Z-800, SN-1420/1430 (USA only)
2.General: Problems of voltage changes occurr ing in the copy lamps during voltage fluctuations in the power supply have arisen in the models listed above bound for countries using the 120V line. To alleviate this problem, the 2 measures described below have been carried
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out.
3.Description: 2 Types of resistors used in the main P WB have been changed to make the unit less susceptible to adverse effects of voltage fluctuations. In accordance with t his change the main PWB of each of the models in the 120V series have been redesigned.
• Change in resistance:
Old New [R167] 24KΩ→ 15K [R170] 120 KΩ→ 82 K
• Change in the main PW B: SF-2014/21 14/2214 (only for models bound for countries using the 120V series):
CPWBF1051FC51 CPWBF1051FC60.
Z-800, SN-1420/1430 :
No changes have been carried out in the parts codes for the main PWB for these models.
4.Action: Japanese prduction: F rom 1995 mid-February production. Chinese(SOCC) production: From the start of 1995 May production.
5. Measures for prevention of H2 trouble.
1.Model name: SF-2014/21 14/2214 Z-800, SN-1420/1430(USA only)
2.General: The balance in the temperature detection circuits changes during drops in temperature, and cases of thermostat open detection (H2) even when the thermostat is in contact have occurred in machines in locations of cold weather. To alleviate this problem, the measures described below have been carried out.
3.Description: The resistance of the resistor (R148) in the main PWB has been changed, to establish a proper balance.
Old New
[R148] 56KΩ→200K
4.Action: Japanese production: From 1995 mid-April production. Chinese(SOCC) production: From the start of 1995 June production.
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Ref.
Model
No.
name
1 SF-2014
SF-2114 SF-2214
Version P/G No.
UK
All
5 -15
5
11 -3
SEEG
only
Current parts New parts
Parts code Parts code
RMOTE0762FCZZ
(Q’ty: 2)
CPWBF1078FC51 Discontinuance VFM PWB
RMOTE0762FCZ1
(Q’ty: 2)
Price
Parts name
rank
AZ VFM
Effec-
tive
time
1 st lot
’95/5
Inter-
change-
ability
5
Note
Z-800
2
SN-1420 SN-1430
SF-2014 All
Z-800
3
SF-2114 SF-2214
SN-1420 SN-1430
SF-2014 SF-2114 SF-2214
Z-800
SN-1420 SN-1430
SF-2014
4
SF-2114 SF-2214
Z-800
SN-1420 SN-1430
SF-2014 SF-2114 SF-2214
USA only
USA only
All
USA only
120 V
series
only
USA only
120 V
series
only
USA only
120 V
series
only
10 -3
11 -3
4-5
3-5
4-5
4-5
20 -64
18 -64
19 -64
20 -82
18 -82
19 -82
5 -62
20 -901
PCOVQ1231FCZZ PCOVQ1231FCZ1 AW Fusing cover
CBTN-0192FC01 CBTN-0192FC02 AR
CBTN-0184FC01 CBTN-0184FC02 AR
VRS-TS2AD243F VRS-TS2AD153F AA Resistance [167]
VRS-TS2AD124F VRS-TS2AD823F AA Resistor [R170]
CPWBF1051FC51 CPWBF1051FC60 BV Main PWB
Operation panel key
Operation panel key
1
See
text
3
4/4
SF-2014 SF-2114 SF-2214
5
Z-800
SN-1420 SN-1430
<Interchange>
1. Interchangea bl e. 4. Not i nt erc h an ge ab l 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
speci fied on es fo r m ai n ta in ing the sa fe ty an d pe r fo r ma nce o f the set .
All
USA only
20 -78
18 -78
19 -78
!
VRS-TS2AD563J VRS-TS2AD204F AA Resistor [R148]
5. Interchangeable if replaced with same types of relate d parts in use .
6. Other s .
.
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