AR-235 (serv.man143). External auditor functionality for AR235 275 - Sharp Copying Equipment Technical Bulletin (repair manual). Page 2

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Sharp Electronics (UK) Ltd., Technical Services Group

During duplex copy mode, the interface will issue 2 billing pulses for each duplex copy,
irrespective of the size of the paper used (e.g. an A4 duplex copy will generate 2 billing
pulses, and an A3 duplex copy will also generate 2 billing pulses). In order for the external
auditing device to detect the selected paper size, the paper size outputs on pins 1 to 4
must also be used. The size detection matrix is as follows:

SIZE3 (PIN 1)

SIZE2 (PIN2)

SIZE1 (PIN3)

SIZE0 (PIN4)

PAPER SIZE

0

0

0

0

NIL

0

0

0

1

A3

0

0

1

0

A4

0

0

1

1

LT (8.5” X 11”)

0

1

0

0

B4

0

1

0

1

LG (8.5” X 14”)

0

1

1

0

WLT (11” X 17”)

0

1

1

1

INV (5.5” X 8.5”)

1

0

0

0

B5

1

0

0

1

EXTRA

1

0

1

0

A5

1

0

1

1

NOT  USED

1

1

0

0

A4-R

1

1

0

1

B5-R

1

1

1

0

LT-R

1

1

1

1

NOT  USED

Third party auditing devices should conform to the following:

1.  The auditor interface should be optically isolated from the copier.
2.  The external auditing device should be “Power Supply Unit” independent.
3.  The external auditing device’s Power Supply Unit should be a plug-top adapter, not an

internal supply.

4.  The external auditing device’s plug-top adapter should have a reinforced insulation

barrier.

5.  The external auditing device must ‘hold’ a CE Mark.

.