SHARP SP2015 Technical Report

Date: May. 14, 1996

COPIER : SF-A55

No. : SP-2015

(Service Information)

ABOUT HANDLING THE DIP SW

1.Model Name: SF-A54/SF-A55

2.General: We are adding instructions on making adjustments to the above models, and also

changing the handling procedures for the DIP SW of the RADF control PWB as indicated below.

SF-A54

General view of the control PWB General view of the DIP switch

ROM

CPU

SF-A55

General view of the control PWB General view of the DIP switch

DRIVER FOR MOTOR

DIP SW

CPU

DRIVER FOR MOTOR

PUSH SW

EEPROM



DIP SW

PUSH SW

G/A

OFF

ON SW No.1 2345

OFF

ON SW No.1 2345

SHARP CORPORATION Reprography Division

1/3

Green

SF-A54

Adjust ments to the ADF

Please carry out the following three adjustments whenever changing any of the RADF/ADF sensors.

No. Adjustment Part adjusted

1 Initializing the E2PROM Adjustment in ADF unit mode 2 Adjusting each sensor Adjustment in ADF unit mode 3 Original halt position adjustment Adjustment using Sim. 53 of the copier unit

ADF unit mode (E2PROM/sensor) adjustment procedure

Before making adjustments...... Open the ADF back side maintenance cover.

Turn the copier off

DIP SW settings

While pressing on the switch (Push SW) above the ADF PWB, turn the copier on. (Keep the switch on for at least one second.)

Set the DIP SW See the DIP SW setting

chart to the right.

Open and close the paper supply or paper discharge cover. (Opening and closing the ADF also works.)

Push SW ON

SF-A55

Adjustment DIP SW setting

E2PROM initialization

Resist sensor adjustment

Timing sensor adjustment

Reverse sensor adjustment

Adjustment DIP SW setting

E2 PROM initialization

Sensor adjustment

ON OFF

2345

Model name

SF-A55

Model name

SF-A54

2/3

No No

The LED above the PWB flashes

Yes

Make any other necessary adjustments

Turn off all the push SWs. Turn the copier off.

That completes the procedure

The ADF's LEDs, both red and green, go on after flashing

Yes

All sensor adjustments for the SF-A54 should follow the

above chart.

SF-A55

Note 1:

When there are no problems, the ADF display's original transport (green LED) and original remaining (red LED) lights both turn on after flashing. When there is a problem with the sensor, an error is indicated and the red LED flashes. If this occurs, check each sensor for trouble.

SF-A54

Note 2:

When there are no problems, LED 1 on the PWB flashes. When there is a problem with the sensor, LEDs 3 or 4 flash. If this occurs, check each sensor for trouble.

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