SHARP SP1863 Technical Report

Date: Feb. 20, 1995

COPIER : Z-20

1. CHANGE IN FORMS OF SAW- TOOTH FOR FLAKING (TO IMPROVE PRODUCTIVITY)

2. P ARTS CHANGES I N MAIN PWB AND POWER SUPPLY PWB (TO IMPROVE PRODUCTIVITY)

No. : SP-1863

1. Change in forms of saw-tooth for flaking (to improve productivity)

1.Model name: Z-20, 23, 25, 27

2.General: We have changed the saw-tooth form used in the discharge holder unit (P/G no. 2 -5)

to improve productivity. Current and new parts are interchangeably used. Therefore we have not changed the parts’ code. (There is no difference in function.)

3.Description:

(Current) (New)

1mm UP

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

2. Parts changes in main PWB and power supply PWB (to improve productivity)

1.Model name: Z-20, 25, 27

2.General: We have changed a test pin in CPU (IC) of the main PWB to a resistor to prevent the

static electricity destruction. (If CPU is destroyed by static electricity, the ready lamp goes on and off instead of lighting up after the main switch turning on.) Moreover, some parts in the main PWB and the power supply PWB have been changed to improve productivity. (There is no change in function.)

3.Description: Improved part against the static electricity destruction (Current) (New)

Test pin (TP211) → Resistor (TP21 1) VRD-ST2EY102J

Please refer to the parts list about other changed parts.

SHARP CORPORATION Reprography Division

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