Brother International FAX 275 Service Manual - Page 79

3.2

Printout

of

Scanning

Compensation

Data

■

Function

The

equipment

prints

out

the

white

and

black

level

data

for

scanning

compensation.

■

Operating

Procedure

Do

not

start

this

function

merely

after

powering

on

the

equipment

but

start

it

after

carrying

out

a

sequence

of

scanning

operation.

Unless

the

equipment

has

carried

out

any

scanning

operation,

this

function

cannot

print

out

correct

scanning

compensation

data.

This

is

because

at

the

start

of

scanning

operation,

the

equipment

initializes

white

and

black

level

data

and

takes

in

the

scanning

compensation

reference

data.

(1)

Press

the

0

and

5

keys

in

this

order

in

the

initial

stage

of

the

maintenance

mode.

The

"WHITE

LEVEL

1"

will

appear

on

the

LCD.

(2)

The

equipment

prints

out

the

scanning

compensation

data

list

containing

the

following:

a)

White

level

data

(208

bytes)

b)

Black

level

data

(1

byte)

c)

Initial

clamp

PWM

value

(1

byte)

d)

Clamp

PWM

value

(1

byte)

e)

Compensation

data

for

background

color

(1

byte)

f)

Limitation

value

for

compensation

data

(1

byte)

g)

Initial

LED

light

intensity

value

(1

byte)

h)

LED

light

intensity

value

(1

byte)

i)

LED

light

intensity

value

on

the

platen

and

documents

(2

bytes)

j)

Threshold

value

on

the

platen

(1

byte)

k)

Document

rear

sensor

adjustment

value

(1

byte)

(3)

Upon

completion

of

recording

of

the

compensation

data

list,

the

equipment

returns

to

the

initial

stage

of

the

maintenance

mode.

NOTE:

If

any

data

is

abnormal,

its

code

will

be

printed

in

inline

style,

as

shown

on

the

next

page.

V

-

5

Brother International FAX 275 Service Manual - Page 79

Printout, Scanning, Compensation

Page 79 highlights