Sharp AL-1651CS Wartungshandbuch PDF herunterladen (Seite 69)

AL-1651CS ADJUSTMENTS 9 - 7

5. SPF (RSPF) scan position automatic

adjustment

Place a black chart so that it covers the SPF scan glass and the OC

glass together, and close the OC cover.

When test command 53-08 is executed, the current adjustment value

is displayed as the initial display.

* Default is 1. Adjustment range is 1 – 99. Adjustment unit 1 = about

0.127mm

* If the values are kept as the default values, SPF scan is not per-

formed properly. The front area of the proper scan position may be

scanned.

In case of AUTO, press [START] key, and the mirror unit scans from

the home position to the SPF scan position with the adjustment value

displayed. The SPF glass cover edge position is calculated from the

difference between the SPFG glass cover edge and the OC side

document glass CCD output level. If the adjustment is normal, the

adjusted value is displayed. If abnormal, the error LED lights up with

the current set value displayed.

During the error LED is lighted, when [START] key is pressed again,

execution is performed again.

Operation

The operation is similar to test command 46-01. (In MANUAL)

OK/ERR display in AUTO

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

below.

Chart size: 300 x 100, prepared with cutting sheet No. 791 (Black) or

an equivalent one.

6. RSPF (SPF) mode sub scanning direction

magnification ratio adjustment

Note: Before performing this adjustment, be sure to check that the OC

mode adjustment in copying has been completed.

1) Put a scale on the original table as shown below, and make a

normal copy (100%) on the front and the back surfaces to make a

test chart.

Note: Since the printed copy is used as a test chart, put the scale in

paralled with the edge lines.

2) Set the test chart on the RSPF and make a duplex copy (D-D or D-

S) in the normal ratio (100%).

3) Compare the scale image and the actual image.

If necessary, perform the following adjustment procedures.

4) Execute TC 48-05.

5) The current front surface sub scanning direction magnification ratio

correction value is displayed in two digits on the display section.

To select SIDE1 and SIDE2, use [←/→] keys.

6) Enter the set value and press the start key.

When adjusting the RSPF, use [2-SIDED COPY] key to select

single/duplex after entering the one page print mode, performing 2-

page single copy.

* When there is no document in SPF, copy is inhibited.

Mode

Display

item

Default LED

SPF scan position auto

adjustment

AUTO 1 COPY mode lamp

SPF scan position manual

adjustment

MANU 1 PRINT mode lamp

Reason: To prevent erroneous detection by disturbing light of a

fluorescent lamp, etc.

53-08 SPF AUTO

AUTO 100% ** OK

53-08 SPF AUTO

AUTO 100% ** ERR

6cm or more is required.

The size of the black chart (UKOG-0011QSZZ) is 297 x 420. Divide it

into four for use.

Mode

Display

item

Default LED

Sub scan magnification ratio

adjustment on the surface of SPF/

RSPF document

SIDE1 50 COPY

mode lamp

Sub scan magnification ratio

adjustment on the surface of

RSPF document

SIDE2 50 PRINT

mode lamp

Adjustment

mode

Spec value TC Set value

Setting

range

Sub scanning

direction

magnification

ratio (SPF/RSPF

mode)

At normal:

±1.0%

48-5 Add 1:

0.1% increase

Reduce 1: 0.1%

decrease

1 – 99

1 2 ... 64 65 66 67 68 69 70 71 72 73 74 ... 159 160

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