Scattering Toner; Black Page; Example of Regular- Page 221

Brother 7550MC User Manual

2014 Dodge Charger SRT Owner Manual

Table of Contents

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TROUBLESHOOTING PROCEDURES

16-16

MFC 4550/6550MC/7550MC
OP-US-5.0

Maintenance

Recommendation

If 

toner 

scattered 

over 

the 

whole 

printing 

surface, 

adjust 

the

print 

density 

dial 

inside 

the 

printer 

counterclockwise. 

See 

“The

Print 

is 

too 

Light 

or 

too 

Dark”on 

page 

16-6.

Clean 

the 

machine 

interior. 

See 

“Regular 

Maintenance” 

and

“Cleaning 

the 

Drum 

Unit” 

on 

page 

14-2.

Make 

sure 

that 

you 

use 

paper 

that 

meets 

specifications 

See 

page

10-1.

If 

you 

still 

have 

the 

same 

problem 

and 

the 

display 

shows

CHANGE 

DRUM, 

replace 

the 

drum 

unit 

with 

new 

one.

Wipe 

the 

electric 

terminals 

referring 

to 

page 

14-2. 

Also, 

do 

not

use 

heat-sensitive 

paper 

as 

it 

will 

cause 

this 

problem.

If 

the 

same 

problem 

occurs 

and 

the 

display 

shows 

CHANGE

DRUM, 

on 

after 

cleaning, 

replace 

the 

drum 

unit 

with 

new 

one.

• Make 

sure 

that 

the 

toner 

cartridge 

is 

not 

empty.

• Wipe 

the 

electric 

terminals 

referring 

to 

“Regular 

Maintenance”

and 

“Cleaning 

the 

Drum 

Unit” 

on 

page 

14-1~3.

• Make 

sure 

that 

torn 

piece 

of 

paper 

does 

not 

remain 

on 

the

scanner 

window.

The 

problem 

may 

disappear 

by 

itself. 

Try 

copying 

multiple

pages 

to 

clear 

this 

problem. 

This 

may 

occur 

if 

the 

machine 

has

not 

been 

used 

for 

long 

time.

This 

also 

may 

occur 

if 

the 

surface 

of 

the 

drum 

is 

scratched. 

You

must 

then 

replace 

the 

drum 

unit 

with 

new 

one.

If 

the 

problem 

does 

not 

disappear, 

it 

may 

be 

that 

the 

drum 

was

marked 

or 

damaged 

by 

excessive 

exposure 

to 

light. 

In 

this 

case,

replace 

the 

drum 

unit 

with 

new 

one.

The whole page is

printed 

in 

black.

Toner 

scatters 

and 

stains

the 

printed 

page.

Question

Nothing 

is 

printed 

on 

the

page.

Printed pages are

marked at regular

intervals.

Example of Regular
Marking

Scattering Toner

Black Page

White page

Detailed Information for Brother 7550MC User Manual

Lists of information found in Brother 7550MC User Manual - Page 221

  • 5.0 Maintenance Recommendation If toner scattered over the whole printing surface, adjust the print density dial inside the printer counterclockwise.
  • 6. Clean the machine interior.
  • 2. Make sure that you use paper that meets specifications See page 10-1.
  • 2. Also, do not use heat-sensitive paper as it will cause this problem.
  • 3. • Make sure that a torn piece of paper does not remain on the scanner window.
  • Make sure that the toner cartridge is not empty.
  • Wipe the electric terminals referring to “Regular Maintenance” and “Cleaning the Drum Unit” on page 14-1~3.
  • Make sure that a torn piece of paper does not remain on the scanner window.

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