SHARP CX205 Technical Report

Date: Apr. 4, 1996

COLOR IMAGE SCANNER: JX-AF3

[A change in parts]

No. : CX-205

CONCERNING THE ADDITION OF A
PROTECTION NETWORK TO THE ADF
RELAY PWB.

1.Model Name: JX-AF3

2.General: If the ADF’s connector is accidentally attached to the JX-330’s FSU connector, the

ADF’s solenoid goes on permanently. The heat which results may melt the cabinet.
Therefore, we have decided to add a protection network to the ADF relay PWB.
As a result of this change, the metal cable holding ring is no longer necessary and will
be discontinued.

3.Description: 1. Changes to the ADF relay PWB unit as a result of the addition of a protection network.

Before the change After the change Notes

➀ ADF relay PWB unit CPWBN1068XC02 CPWBS1082XC01
➁ IC (TC74HC123P) IC2 — VHITC74HC123P Added
➂ IC (TC74HC08P) IC3 — VHITC74HC08PN Added
➃ Diode (IS1588) D4 — VHDDS1588L2-1 Q’ty: 2 → 3
➄ Resistor (1/4 W, 33KΩ±5%)R20 — VRD-RC2EY333J Added
➅ Capacitor (0.1µF) C11,12 — RC-K1E104HCZZ Q’ty: 2 → 4
➆ Capacitor (50WV, 1000pF) C9 — VCKYPU1HB102K Added
➇ Capacitor (6.3WV, 100µF) C10 — VCEAJU0JW107M Added
➈ Core (LFW7B-M3R2A0) L3,4 — RCORF5013BCZZ Q’ty: 2 → 4
➉ Core (2943-C66663) L5 — RCJLZ7020SCZZ Added

See also the attached circuit diagram and layout plan in regards to ➀ to ➉ above.

SHARP CORPORATION Printer and Scanner Division

1/4

Orange

C

2/4