SHARP SP1621 Technical Report
Date: Sep. 10, 1993
COPIER : SF-2035
1. PERMANENT SOLUTION TO PREVENT A PAPER MISFEED OWING
TO A RETURN FAILURE OF THE PPD1 ACTUATOR
2. PREVENTION OF APPEARANCE OF WHITE STREAKS WITH
CHANGE IN THE MS2 ACTUATOR MATERIAL
No. : SP-1621
1. Prevention of a paper misfeed owing to a return failure of the PPD1 actuator
1.Model name: SF-2022 / 2027 / 2035
2.General: To avoid the paper misfeed caused by improper PPD1 return, change is made to the
axial distance of the PPD1 actuator.
3.Reason: To provide the thrust play against the PPD1 actuator movement.
4.Description: Change is made to the longitudinal distance as shown in the illustration to improve the
action of the PPD1 actuator.
Extended 0.7mm.
PPD1 actuator
This end (shadowed area) is cut 0.5mm.
The new item
has “A” printed.
Extended
0.5mm.
5.Action: (Factory action)
Running change Since July 1993.
SHARP CORPORATION Reprography Division
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Green
C
2. Prevention of appearance of white streaks with change in the MS2 actuator material
1.Model name: SF-2035 / 2027 / 2022
2.General: It is possible under a low humidity to static electricity charged as paper rubs against the
MS2 actuator, causing to produce white streaks. To avoid this to occur, change is made
to the material.This problem might occur in the halftone copy with the machine having a
large total copy count, though it depends on surrounding and paper kind.
3.Reason: This is to prevent appearance of white streaks under a low humidity producing a
halftone copy.
4.Description: A new material is used for the MS2 actuator to avoid static electricity charge against
paper.
MS2 actuator: Changed
MLEVP0583FCZ2
MLEVP0583FCZ3
Beginning from mid-January 1993 production of SF-2022 and SF-2027, a roundness
was provided at the top end of the actuator and it must be noted that its parts code was
reassigned from MLEVP0583FCZ1 to MLEVP0583FCZ2. With regard to SF-2035, the
new item (MLEVP0583FCZ2) had been used since its start of production.
5.Action: (Factory action)
From October 1993.
An “A” mark is printed on the new item.
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