SHARP SP1825 Technical Report

Date: Sep. 22, 1994

COPIER : Z-20

1. CHANGE IN PARTS IN THE MAIN CIRCUIT BOARD AND POWER SUPPLY PWB (TO IMPROVE PRODUCTIVITY).

2. CHANGE IN THE LENGTH OF THE HL HARNESS (MARGIN UP).

3. TROUBLE SHOOTING PS SOLENOID MALFUNCTION (MARGIN UP).

1. Change in parts in the main circuit board and power supply PWB (to improve productivity)

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

2.General: Some of the parts in the main circuit board and the power supply PWB have been

changed to improve productivity. The parts list should be consulted for details of the change.

No. : SP-1825

3.Action: From the start of 1994 September production.

2. Change in the length of the HL harness (margin up)

1.Model name: Z-20, 25, 27 (machines bound for areas using the 200 V series).

2.General: As a temporary measure for preventing the HL harness from coming in contact with the

heat sink, the wiring route of the harness was changed, but the length of the harness line has been extended as a permanent measure, and the wiring route has been changed back to the original route.

SHARP CORPORATION Reprography Division

1/3

Green

3.Description:

Current New

Thermostat

HL Harness

Chassis

Chassis HL harness

Heat sink

Chassis HL harness

Heat sink

Edge

4.Action: From the start of 1994 September production.

3. T rouble shooting PS solenoid malfunction (margin up)

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

2.General: As a temporary measure for trouble shooting improper movement of the PS solenoid,

grease had been applied to the plunger. As a permanent measure, however, the finish of the surface of the plunger has been changed.

3.Description: The finishing of the surface of the plunger has been changed. Old New

Nickel plating (silver) Molybdenum coated (black)

PS solenoid 5 -45 Z-23, 25, 27

The parts code has been changed

4.Action: From 1994 mid-August production.

2/3

Grease should not be applied to the plunger after the change has been put in effect.

+ 1 hidden pages