SHARP SP1853 Technical Report

Date: Feb. 7, 1995

COPIER : SF-2014

1. IMPROVEMENT TO LED LIGHT VOLUME IN COPY NUMBERS DISPLAYING SECTION

2. PREVENTION OF IRREGULAR NOISE IN U-TURN GUIDE SECTION

3. CHANGE OF PS UPPER ROLLER

4. PROTECTION OF HALL FOR COUNTER IN LEFT CABINET

5. ADDITION OF SHEET INSIDE HINGE GUIDE.

1. Improvement to LED light volume in copy numbers displaying section

1.Model name: SF-2014, 2114, 2214
SN-1420, 1430 Z-800, for USA only

No. : SP-1853

2.General: When displaying the copy numbers section in the operation panel unit in the zoom
mode, the darker display was shown on rare occasion because the operational circuit of
hundreds digit display is different from others.

3.Description: We have changed a resistance and added a resistance in the operation PWB as follows
to make the movement circuit same as other LED.

Current New
Changed R426 VRD-HT3EY151J (150ΩM) → VRD-HT2EY201J (200ΩJ)
Added R430 VRD-HT2EY201J (200ΩJ)

4.Action: From the first unit of mass production

2. Prevention of irregular noise from U-turn guide section

1.Model name: SF-2014, 2114, 2214 SF-MF14
SN-1420, 1430 Z-800, for USA only

2.General: We have taken following two measures to prevent irregular noise from the PF upper
roller shaft of the manual U-turn guide section.
We have changed the surface processing of the PF upper roller shaft.
We have applied grease to around of the PF upper roller shaft.

SHARP CORPORATION Reprography Division

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Green

C

PF roller shaft

3.Action: From mid-October 1994 production (running change)

3. Change of PS upper roller

1.Model name: SF-2014, 2114, 2214
SN-1420, 1430 Z-800, for USA only

2.General: We have changed the manufacturer of the PS upper roller used in the upper frame to
improve productivity. In addition, we have also changed its parts’ code.
Current New
NROLM1022FCZZ (Brown finishing) → NROLM1022FCZ1 (White finishing)
Interchangeably used

3.Action: From the first unit of December 1994 production

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