Sharp AR-M208 서비스 매뉴얼 - 페이지 14

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[7] ADJUSTMENTS, SETTING

2. Copier adjustment

B. Mechanism section

(16) SPF scan position auto adjustment

[Function]

Used to adjust the SPF scan position automatically.

[Operation]

1) With the SPF or the OC cover open, place a chart of black back-

ground on the OC glass. (In the SPF standard model, the SPF

glass surface is included.)

Use a black chart (UKOG-0011QSZZ) or prepare a chart as shown

below.

Chart size: 310 x 470, prepared with cutting sheet No. 791 (Black) or

an equivalent one.

Reason: To prevent erroneous detection by disturbing light of a fluo-

rescent lamp, etc.

2) Enter SIM53-08, and press [START] button.

Outline of SIM: The optical unit is shifted to recognize the bound-

ary between the OC glass and the SPF glass cover.

With the same position as the reference, the SPF scan position is

automatically adjusted.

<Note>

• After completion of the SPF scan position auto adjustment, the SPF

lead edge adjustment must be executed. (Both surfaces)

• There must be no other sheet than the black chart on the glass sur-

face.

• Especially when in SPF scan, the center area is scanned in the main

scan direction. Be careful to prevent external light from entering the

scan area.

3) Check that the lead edge is not shifted. (Both surfaces)

(If the original lead edge adjustment has been made properly, even

when the scan position is shifted, it is followed automatically.)

For the SPF standard-provision

Place only the black

machine, check that the black

chart on the OC glass.

chart covers the SPF glass.

4) Change the adjustment value of the SPF scan end position.

(Change the adjustment value of SIM50-6-3 from 50 to 36.)

Change the number of steps for Pin off – scan end position from

1,014 to 986.

Be sure to execute this adjustment because an image may be cut

off during FAX transmission though copying is normally performed.

5) Change the initial value of the SPF exposure adjustment (SIM46-

20) from 50 to 53.

(For the CCD exposure adjustment with SPF, use the value of the

OC adjustment value +3.)

There are suffixes of –1 SPF and –2 SPF. Change each of them.

Placing the black chart

The black chart must cover

this area.

AR-M208 ADJUSTMENTS 7 - 1