Service manual

ManualsBrandsMinolta ManualsAll in One PrinterEP1085

FrameMaker Ver.5.5(PC) EP1054/EP1085/EP2030 TROUBLESHOOTING

98.05.15

T- 6 9

(5) Black Streaks or Bands

Cause

Step

Check Item

Result

Action

Uneven charging

1

Are the PC Drum Charge

Corona wire and grid mesh

dirty?

YES

Clean or replace the PC

Drum Charge Corona.

Check the operation of the

toner charging mechanism.

Cleaning failure

2

Is the Cleaning Blade dirty

with foreign matter, paper

dust, etc., or is it scratched?

YES

Replace the Cleaning

Blade.

3

Does the Cleaning Blade

make a correct lateral motion?

NO

Check the operation of the

Cleaning Blade.

PC Drum failure

4

Is the PC Drum surface

dirty or scratched? YES

Replace the PC Drum. If

necessary, replace the

Cleaning Blade.

PC Drum Paper

Separator Fingers 5

Are the PC Drum Paper Sepa-

rator Fingers dirty, deformed or

faulty in operation?

YES

Clean or replace the PC

Drum Paper Separator Fin-

gers.

Fusing failure

6

Is the Upper Fusing Roller

dirty or scratched?

YES

Clean or replace the Upper

Fusing Roller.

7

Are the Upper Paper Separa-

tor Fingers dirty or deformed?

YES

Clean or replace the Upper

Paper Separator Fingers.

Optical failure

8

Is the mirror or lens dirty

with foreign matter?

YES

Clean the mirror or lens.

(6) Black Spots

Cause

Step

Check Item

Result

Action

PC Drum failure

1

Is the PC Drum surface

scratched or dirty with for-

eign matter?

YES

Clean or replace the PC

Drum. If necessary, replace

the Cleaning Blade.

Fusing failure

2

Is the Upper Fusing Roller

dirty or scratched? YES

Check the Fusing Ther-

mistors. Clean or replace

the Upper Fusing Roller.

Developing failure

3

Is the amount of toner on

the Sleeve Roller proper?

YES

To step 7.

4

Is the toner-to-carrier ratio

relatively high?

YES

Change the toner-to-car-

rier ratio.

5 Is the Db value normal? NO Make Db adjustment.

6

Is the Developer Scattering

Prevention Seal deformed

or dirty?

YES

Clean or replace the Devel-

oper Scattering Prevention

Seal.

Dirty PC Drum

Paper Separator

Fingers

7

Are the PC Drum Paper

Separator Fingers dirty or

deformed?

YES

Clean or replace the PC

Drum Paper Separator Fin-

gers.