2500_Users_Manual- - 第178页

Preventive Maintenance Corrective Adjustments Changing Dot Matrix Printer Ribbon Cassette Refer to the procedure on page 5-57. Changing Thermal Printer Ribbon Refer to the procedure on page 5-59. Adjusting Dot Matrix Pri…

Preventive

Maintenance

Chuck

Is

Handling

Devices

Incorrectly

The

chuck

does

not

work

correctly

with

the

devices

you

are

using.

Ensure

that

you

are

using

the

correct

chuck

size

for

the

devices

you

are

processing.

Refer

to

the

chuck

selection

chart

on

page

4-16.

Replace

the

rubber

chuck

tip.

Confirm

that

high

and

low

air

pressure

gauges

are

set

to

the

correct

levels.

Make

sure

there

are

no

air

leaks.

Continuity

Failures

Try

a

device-related

operation

(program

or

verify)

using

a

device

from

another

manufacturer

to

make

sure

the

problem

is

associated

with

the

hardware

rather

than

the

device

or

device

algorithm.

Carefully

check

the

beam's

alignment

to

the

device

and

the

device's

alignment

to

the

programming

module

to

verify

that

the

chuck

tip

is

centered

on

the

device

(refer

to

the

device

alignment

procedure,

beginning

on

page

4-27).

Run

the

PE's

self

test.

Clean

the

contacts

on

the

programming

module.

CAUTION:

This

procedure

should

be

performed

only

by

a

qualified

service

technician.

The

contacts

may

need

to

be

replaced

by

a

service

technician.

Devices

Are

Not

Being

Picked

Up

Correctly

Carefully

check

the

beam's

alignment

to

the

device

and

the

device's

alignment

to

the

programming

module

to

verify

that

the

chuck

tip

is

centered

on

the

device

(refer

to

the

device

alignment

procedure,

beginning

on

page

4-27).

2500

Is

Not

Operating

and

Nothing

Is

Displayed

The

fuse

is

blown,

there

is

no

power,

or

the

power

supply

is

bad.

Check

the

main

fuse

(see

page

7-2),

AC

power,

power

cord

connection,

and

controller

board

LEDs.

Contact

Data

I/O

Support

(phone

numbers

listed

in

the

Preface)

for

specific

assistance.

Receiving

Tube

Overflows

The

number

of

parts

per

tube

is

incorrect

or

the

“Device

at

output

tube”

optic

is

bad.

Check

optic

diagnostic

tests

12

and

14.

Tube

was

removed

and

reinstalled

with

devices

in

it.

Insert

only

empty

tubes

in

output

tube

holders

while

a

Task

is

running.

The

number

of

parts-per-tube

parameter

on

the

TaskLink

screen

is

incorrect.

Check

the

2500's

display

for

the

number

of

parts

per

tube.

If

it

is

incorrect,

press

STOP

and

LOWER

CASE

+

T

on

the

2500's

keyboard.

Change

the

part

count

on

the

keyboard

if

it

is

incorrect.

Press

ENTER

and

then

START

to

continue

running

the

Task.

ProMaster

2500

User

Manual

5-23

Preventive

Maintenance

Corrective

Adjustments

Changing

Dot

Matrix

Printer

Ribbon

Cassette

Refer

to

the

procedure

on

page

5-57.

Changing

Thermal

Printer

Ribbon

Refer

to

the

procedure

on

page

5-59.

Adjusting

Dot

Matrix

Print

Head

Gap

The

print

head

gap

is

set

at

the

factory

and

will

not

usually

need

to

be

changed.

If

there

are

substantial

changes

in

the

thickness

of

the

label

or

label

backing,

however,

you

may

need

to

make

an

adjustment.

If

the

gap

between

the

platen

and

the

print

head

is

too

wide,

it

may

result

in

slanted

or

fuzzy

printing.

If

the

gap

is

too

narrow,

the

print

ribbon

may

rub

against

the

labels,

smudging

them

and

making

the

background

gray.

CAUTION:

Dangerous

high

voltages

are

present.

Do

not

perform

this

procedure

while

power

is

on

to

the

2500.

This

procedure

should

be

performed

only

by

a

qualified

service

technician.

To

adjust

the

print

head

height,

follow

these

steps:

1.

Turn

off

and

unplug

the

2500.

2.

Remove

the

ribbon

cartridge

and

labels.

3.

Locate

the

two

corner

screws

on

the

main

plate

that

hold

the

plate

in

position.

Loosen

these

screws

so

the

plate

is

free.

4.

Lift

the

main

plate

so

you

can

see

inside

the

2500's

base.

5.

Locate

the

four

hex

screws

on

the

back

side

of

the

print

head

that

hold

it

in

position.

Loosen

the

screws,

but

do

not

remove

them.

6.

When

the

print

head

is

free

to

move,

move

it

as

far

to

the

right

as

possible,

then

adjust

the

gap

between

the

print

head

and

the

underside

of

the

platen

to

approximately

0.018

inches.

7.

Hold

the

print

head

in

this

position

and

tighten

the

four

hex

screws.

5-24

ProMaster

2500

User

Manual

ENTER LABEL CALIBRATION VALUE (X):

ENTER LABEL ADJUST VALUE (X):

1944-1

NORMAL

HIGHER VALUE

Preventive

Maintenance

Adjusting

Position

of

Print

on

Label

(Dot

Matrix

Printer)

The

left-to-right

position

of

characters

on

the

label

is

determined

by

label

calibration.

Figure

5-6

Adjusting

Label

Calibration

You

can

change

the

label

calibration

setting

during

a

Task

run

by

pressing

STOP

and

then

LOWER

CASE

+

C.

The

2500

displays:

The

X

represents

the

current

setting.

The

default

setting

places

the

first

column

of

print

within

0.040

inches

of

the

leading

edge

of

the

label.

Increasing

the

value

one

unit

moves

the

print

location

approximately

0.005

inches

to

the

right;

decreasing

the

value

moves

it

0.005

inches

to

the

left.

Enter

a

number

from

0

to

255,

and

press

ENTER.

If

you

change

label

calibration,

press

CAL

to

calibrate

the

label

(see

page

4-19).

Adjusting

Position

of

Label

on

Device

(Dot

Matrix

Printer)

The

position

of

the

label

on

the

device

is

determined

by

the

label

placement

value.

This

is

set

in

the

system

defaults

to

“Auto

center,”

which

instructs

the

2500

to

place

the

label

on

the

true

center

of

the

device.

You

can

change

label

placement

using

a

local

mode

command

described

in

Appendix

F.

You

can

use

the

Label

Adjust

parameter

to

flne-tune

label

placement

and

thereby

adjust

its

centering

while

a

Task

is

running.

Press

STOP

and

then

LOWER

CASE

+

A.

The

2500

displays:

Enter

a

number

from

0

to

255;

each

unit

moves

the

label

0.01

inch

closer

to

the

trailing

edge.

Press

ENTER

to

accept

the

selection.

Note:

This

works

only

w

加避

"Aut。

center”

is

selected

in

the

2500

Setup/Labeler

menu.

ProMaster

2500

User

Manual

5-25