Sharp SF-2414 Service Manual download pdf (Page 90)

5. Details of simulations

Contents

Purpose/kind Section Main

code

Sub

code

Description

Ref. page

Adjustment Paper feed

section

51 2 Used to adjust contact pressure between paper and the main body resist roller

or the SPF resist roller. (Amount of paper buckle at the resist roller)

Change the set value when the shift between the paper and the image varies.

(Operation/procedure)

When the simulation key operation is performed, the currently set value is

displayed on the COPIES SELECTED display.

Enter the set value with the numeral key and press the print button, and the

entered set value will be stored in the main PWB RAM.

The standard set value is 25. (Main body) 25 (SPF)

Tray paper feed mode: Tray (upper) paper feed lamp ON

Manual paper feed mode: Manual paper feed lamp ON

SPF mode: Upper and lower cassette paper feed lamps ON

The set value corresponds to the time interval between when the paper detec-

tor (PPD/SPPD) in front of the main body resist roller detects paper and when

the transport roller (TRC/SPFC) turns off.

The greater this time interval is, the greater the contact pressure between the

paper and the resist roller is.

@ The time interval can be set. The

greater the time interval is, the

greater the contact pressure be-

tween the paper and the resist

roller is. If the contact pressure is

too great, a paper jam may occur.

If the contact pressure is too

small, variations of image position

for the copy paper becomes

greater. This must be adjusted ac-

cording to the paper quality.

Optical unit 26 8 Used to adjust the copy magnification ratio in zoom copy.

The lens shift amount in zoom copy is changed to provide suitable magnifica-

tion ratio.

There is a slight variation in each lens focal distance. If the lenses are shifted

in a same amount in zoom copy, suitable magnification ratio may not be

obtained. To correct this, therefore, each lens is shifted according to its focal

distance.

The lens must be shifted in accordance with its focal distance in zoom copy,

7-16

(Operation/Procedure)

When the simulation key operation is performed, the currently set lens number

is displayed.

Enter the lens number with the ready lamp ON and press the print button, and

the entered number will be stored in the main PWB RAM. The lens number is

in proportion to the lens focal distance.

45 1 Used to adjust the copy paper lead edge void and the rear edge void amount.

(Operation/procedure)

When the simulation key operation is performed, warming-up operation is

performed. After completion of warming up, the currently set void amount is

displayed on the COPIES MADE display.

Use the tray select key to select between the lead edge void amount adjust-

ment and the rear edge void amount adjustment mode. The upper tray lamp

will change as shown in the table below.

7-19

Mode

Paper cassette

lamp

Manual Paper

feed lamp

Lead edge void amount adjustment

mode

Light —

Read edge void amount adjustment

mode (Paper cassette)

Blink —

Read edge void amount adjustment

mode (Manual Paper feed)

— Blink

Enter the set value with the numeral keys and press the PRINT button, and

the set value will be stored.

The standard set value is 50. The void area increases 0.123mm for an in-

crease of the set value by 1.

PPD

( SPPD)

TRC

(SPFC)

8 – 3

1 2 ... 85 86 87 88 89 90 91 92 93 94 95 ... 130 131

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Sharp SF-2414 Service Manual Page 90

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