SHARP LPE180 Technical Report

Date: Jan. 13, 1994

LASER PRINTER: JX-9400

1. PCU CIRCUIT BOARD PARTS CHANGE TO IMPROVE IMAGE QUALITY.

2. PS GUIDE ASSEMBLY CHANGE IN ACCORDANCE WITH CHANGE IN PS
SHEET C.

3. CHANGE IN PARTS IN ACCORDANCE WITH ELECTROMAGNETIC
INTERFERENCE LEVEL IMPROVEMENTS.

No. : LPE-180

1. PCU circuit board parts change to improve image quality.

1.Model name: JX-9400

2.General: The parts changes and additions described below have been carried out to maximize

black and white distinction in the main scanning direction.

3.Description: The parts changes and additions described below have been carried out.

Parts name (location) Description Remarks

IC2 LS00 HC00

R2 6.2KΩ 2.2KΩ
R6 10Ω 5.6KΩ

R12 4.7KΩ 560Ω

Capacitor (added) 100 pF

<Current> <New>

Change

Change

Change

Change

Added between the No. 2 pin and the No. 4 pin
of integrated circuit 2 on the soldered side of
the circuit board.

4.Action: From 1993 June production.

SHARP CORPORATION Printer and Scanner Division

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Orange

C

2. PS guide assembly change in accordance with change in PS sheet C.

1.Model name: JX-9400 / 9400PS / 9460 / 9460PS / 9600 / 9600PS

2.General: The PS sheet attached to the PS guide has been changed to improve productivity and

product quality.

3.Description: To improve productivity and product quality.

PS guide parts.

Changed PS sheet C.

4.Action: From 1993 September production.

3. Change in parts in accordance with electromagnetic interference level
improvements.

1.Model name: JX-9460 / JX-9460PS

2.General: Parts have been changed in accordance with electromagnetic interference level

improvements.

3.Description: ➀ The shape of the AC grounding plate has been changed to increase the connecting

surface area of the shield plate and the base plate.

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