SHARP SP1570 Technical Report

Date: Apr. 27, 1993

COPIER : SF-2022

1. PREVENTING A 75MM PITCH BLUR WITH A NEW PIN IN USE

2. CHANGING IN THE FABRIC SHEATH FOR PRODUCTIVITY
ENHANCEMENT

3. AVOIDING A LEEWAY IN THE DV DRIVE SHAFT

1. Preventing a 75mm pitch blur with a new pin in use

1.Model name: SF-2022/2027

No. : SP-1570

2.General: Owing to a play in the pin and the gearwheel at the drum drive block of the
main drive unit, it m ay probably c ause an occurrence of a 75mm pitc h blur
toward the paper moving direction. To avoid this, a change is made to the stop
pin.

3.Phenomenon: A 75mm pitch blur m ay occur towards the paper m oving direct ion. This would
not occur when copying normal characters, but may occur when making a copy
of an original that has grid on it.

4.Description: Change is made to the pin as described next to get rid of the play.

• φ3-10 stop pin φ3-11 waved split spr ing pin

(LPINS0155FCZZ) (LPINS0278FCZZ)

• φ3-9.5 st raight split spring pin φ3-9.5 waved s plit spring pin

(LPINS0262FCZZ) (LPINS0264FCZZ)

SHARP CORPORATION Reprography Division

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Green

C

Changed: LPINS0262FCZZ

↓
LPINS0264FCZZ

Changed: LPINS0155FCZZ

↓

LPINS0278FCZZ

5.Action: (Factory action)

This pin stays the same as is now.This pin stays the same as is now.

Since February 1993.

2. Changing in the fabric sheath for productivity enhancement

1.Model name: SF-2022/2027/2035/CM11/D19/D20/D21

2.General: Change is made to the structure of t he fabric sheath due t o the followi ng

reason.

3.Reason: To achieve productivity enhancement.

4.Description: Change is made to the fabric sheath of the paper feed unit as described next.

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