COPIER : SF-2116 etc.
Date
:
Jun. 24, 1998
No. : SP-2289
ACTION TO ALLEVIATE PROBLEMS OF WASTE TONER FULL
DETECTION ERRORS (MAINTENANCE LAMP: FLASHING).
1.Model Name: SF-2116/0016/2118/1018/2020/1020/2120/1120
2.General: A change that was carried out as a permanent measure in the shape of the waste toner
bearing 2 was reported in Technical Report No. SP-2218, but a claim from a portion of
the market was received to the effect that the information presented in the report
concerning the problems of the process and the change history was unclear. To
accommodate these claims, a detailed report of the content is hereby reported.
<Description>
The maintenance lamp was flashing even though the inside of the waste toner bottle
(P/G No. [14]-21) was not full of toner.
<Cause>
The temperature of the waste toner bottle of the SF-2116 series rises to around 60°C
during continuous copy operations. Furthermore, pressure is normally applied to the
waste toner bottle by the waste toner spring (P/G No. [14]-25). When a temperature of
around 60°C is continued for a long period of time, the dimensions of the waste toner
bottle gradually become smaller due to the pressure applied to the waste toner bottle by
the waste toner spring, and the size of the waste toner bottle can decrease by as much
as 2 mm. With the decrease in size of the waste toner bottle, the ribs of the drive gear
87T (P/G No. [14]-24) come in contact with the ribs of the waste toner bearing 2 (P/G
No. [14]-23), causing a waste toner full detection to take place.
SHARP CORPORATION Reprography Division
1/4
Green
C
<Temporary Action 1>
As described in the figure shown below, the addition of a size correction sheet has been
carried out to the drive gear 87T in 4 locations.
Size correction sheet
Direction of revolution
Drive gear 87T
Attached to the left
side of the rib in four
locations, towards the
outer perimeter of the
gear.
Attachment standard for
the size correction sheets.
Gear 87T
<Part name> <Part code> <Quantity>
Size correction sheet PSHEG4473FCZZ 4
Action:
Japanese domestic production: From 1996 mid-October production.
Chinese (SOCC) production: From 1996 mid-October production.
French (SMF) production: From 1996 mid-October production.
<Temporary Action 2>
The size correction sheets (Qty: 4) which were attached in Temporary Action 1 described
above have all been discontinued, and the addition of washers has been carried out to
the drum frame unit as described in the figure shown below.
2/4
XWHSD30-10080
XWUSD30-04065
<Part name> <Part code> <Quantity>
M3 frat washer XWHSD30-10080 2
M3 rose washer XWUSD30-04065 1
∗ With the addition of the washers as described above, the same result has been
achieved as with Temporary Action 1. It is therefore not necessary to carry out
the addition of size correction sheets in machines in which the addition of the
washers described above has been carried out.
Action:
Japanese domestic production: From 1997 mid-March production.
Chinese (SOCC) production: No action has been carried out
(Temporary Action 1 is being continued.)
French (SMF) production: From 1997 mid-March production.
<Permanent Action>
The M3 flat washers (Qty: 2) and the M3 rose washer (Qty: 1) which were added in
Temporary Action 2 described above have been discontinued, and the total length of the
waste toner bearing 2 has been increased by 2 mm. In accordance with this action, a
change has been carried out in the color of the parts to help make it easier to distinguish
between the old and new units. The white color of the old parts has been changed to
black for the new parts.
<Part name> <Old> <New>
Waste toner bearing 2 NBRGP0534FCZZ → NBRGP0534FCZ1
(White) (Black)
Action:
Japanese domestic production: From the 1st lot of 1997 October production.
Chinese (SOCC) production: From the 1st lot of 1997 November production.
French (SMF) production: From the 1st lot of 1997 December production.
3.Field Action: When the problem described above occurred in machines produced before 1996
October, one of the three actions described above, Temporary Action 1, Temporary Action
2, or Permanent Action, was carried out. Furthermore, When replacing the waste toner
bearing 2 with a part that was produced in accordance with the Permanent Action (black)
in machines with either Temporary Action 1 or Temporary Action 2 carried out, all
temporary action parts should be removed from the machines.
3/4
Ref.
Model
No.
SF-2116
SF-1016
SF-2118
SF-1018
SF-2020
SF-1020
SF-2120
SF-1120
SF-2116
SF-1016
SF-2118
SF-1018
SF-2020
SF-1020
SF-2120
SF-1120
SF-2116
SF-1016
SF-2118
SF-1018
SF-2020
SF-1020
SF-2120
SF-1120
SF-2116
SF-1016
SF-2118
SF-1018
SF-2020
SF-1020
SF-2120
SF-1120
<Interchange>
1. Interchangeable. 4. Not interchangeable.
2. Current type can be used in place of new type.
3. Current type cannot be used in place of new type.
Parts marked with " " is important for maintaining the safety of the set. Be sure to replace these parts with
specified ones for maintaining the safety and performance of the set.
Version P/G No.
name
14
15
14
15
All
14
15
14 -23
15 -23
New type cannot be used in place of current type.
New type can be used in place of current type.
Current parts New parts
Parts code Parts code
PSHEG4473FCZZ AC Size correction sheet
---XWHSD30-10080
XWUSD30-04065 M3 rose washer
NBRGP0534FCZZ NBRGP0534FCZ1 AD Waste toner bearing 2 ∗ ∗3
Price
rank
AA
5. Interchangeable if replaced with same types of
related parts in use.
6. Others.
Parts name
M3 frat washer
Effec-
tive
time
See
text
Inter-
change-
ability
6
Note
∗1
∗2
4/4
∗ 1: Temporary action 1
∗ 2: Temporary action 2
∗ 3: Permanent action
∗ When carrying out replacement operations of new parts for the waste toner bearing 2
on machines in which temporary action 1 or temporary action 2 has already been
carried out, all parts related to the temporary action should be removed.
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