SHARP SP1558 Technical Report

Date: Mar. 2, 1993

COPIER : SF-2022

No. : SP-1558

[Service Information]

INFORMING MAIN PROGRAM ROM UPDATE EVENTS

1.Model name: SF-2022/2027

2.General: Th e ma i n p r o gr a m RO M ha s been updated since the launch of the volum e production. For we inform you the history of the ROM upgrade events up to the version 5.00 in this Service Information, it must be ordered under the parts code of VHI27C01007FC (version 5.00).

3.Description:

ROM

version

First lot to mid-August 1992

Ver. 3.02

Mid-August 1992 to mid-August 1992.

Ver. 3.03

Updated period Description of change Note

• Eliminated the bug that the resist of ADU is overwritten by the resist of the cassette, when the test command is canceled using the CA key when the resist of the cassette is display while conducting the test command 51-02 (resist adjustment).

• Initial setting for the resist in the manual feed mode is changed from 36 to 40.

• Eliminated the bug that a paper misfeed is caused when a paper empty occurred when a pause is reserved.

• Eliminated the bug that the last page is counted double, when a paper is fed from the manual bypass or from the special size cassette with the sorter in use.

• Eliminated the bug that the machine stops when the cassette is changed for the last single/multiple paper.

• Eliminated the bug that the top of an image shrinks when an A3 paper is fed from the bottom cassette.

• Eliminated the bug that the level of original sensor is obstructed to change using the keypad, when conducting the test command 41-03 (original sensor light receive level, programmed setup level).

• Standard factory setting

• With SF-S14, SF-S15, or SF-S52

• When the main bottom cassette is A3.

• When checking the light receive level of the original sensor, and programmed setup level.

SHARP CORPORATION Reprography Division

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