SHARP LPE183 Technical Report

Date: Jan. 13, 1994

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LASER PRINTER : JX-9600

No. : LPE-183

1. TROUBLE SHOOTING PRINTING DISALIGNMENT.

2. TROUBLE SHOOTING GEAR SKIPPING.

3. CHANGING THE BOSS DIAMETER OF THE 36 T
HELICAL GEARS IN THE MAIN FRAME UNIT.

1. Trouble shooting printing disalignment.

1.Model name: JX-9400/PS, JX-9460/PS, JX-9600/PS, JX-9660/PS

2.General: To prevent printing disalignment shield tape had been wrapped around the heat roller to

prevent rattling of the heat roller against the fixed 32 T gear. The inner diameter of the
fixed 32 T gear has been decreased, preventing the rattling of the heat roller.

Old dimensions φ20.13.

+0.2

+0.05

New dimensions φ20.03
(change is within tolerance).

φ19.95

Fixed 32 T gear.

3.Description: The inner diameter of the fixed 32 T gear has been decreased.

4.Action: Running change from 1993 September production.

2. Trouble shooting gear skipping.

1.Model name: JX-9400/PS, JX-9460/PS, JX-9600/PS, JX-9660/PS

2.General: Gear slipping sometimes occurred between the gears on the toner hopper and the 26 T

gear, which drives the toner hopper in the developing tank. To prevent this from
occurring the spring load weight of the toner arm spring has been changed from 1.1 kg
to 1.5 kg.

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Orange

C

SHARP CORPORATION Printer and Scanner Division

3.Description: The spring load weight and parts code have been changed.

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Old. New.

For 30 mm.

Load weight. 1.1 Kg 1.5 Kg

Parts code. MSPRT0075GCZZ MSPRT0075GCZA

4.Action: From 1993 May production.

3. Changing the boss diameter of the 36 T helical gears in the main frame unit.

1.Model name: JX-9400/PS, JX-9460/PS, JX-9600/PS, JX-9660/PS

2.General: A plastic slider had been added to maintain clearance between the main frame walls

and the 36 T helical gear, which drives the drum cartridge. The shape of the 36 T
helical gear has been changed, however, eliminating the need for the plastic slider and
the slider has been eliminated.

3.Description: The diameter of the axis portion of the 36 T helical gear has been changed from φ7 mm
to φ8 mm.

4.Action: From 1993 November production.

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Changed from φ7 mm to φ8 mm.