Toshiba 4511 사용자 설명서

e-STUDIO3511/4511 TROUBLESHOOTING

5 - 100

November 2003 © TOSHIBA TEC

Step

1
2

3

4

5

Main

Classification

Drum rotation

Main motor
rotation speed
Drum coupling

Transfer belt

Transfer belt
home position
sensor
Drive roller

Large driving
load
Grounding
(transfer belt
unit)
Reflection
mirror warp
f

θ lens charac-

teristic defect
High-voltage
supply terminal
(1st/2nd
transfer rollers)

Section

Drum drive system

Transfer belt
system

Laser optical unit

High-voltage
transformer

Check Item

Output the built-in pattern on A3/LD.
Check main motor operation in the
Test Mode (03).
Check main motor operation in the
Test Mode (03).
Recheck values set for main motor
rotation speed.
Check the grid pattern.

Check the grid pattern.

Check the condition of transfer belt
edge.

Check the grid pattern.

Check the condition of roller surface.

Check the installing of the transfer belt
unit.

Check the grid pattern.

Check the grid pattern.

Check the connection of the terminal.

Phenomena

Color

deviation

White void

Color

deviation

Original mode

All modes

Text Mode
Text/Photo Mode
Photo Mode
Map Mode

Location

Color blurred in outline of
white text or illustration
on a colored background
Outline in black text on a
colored background
Color blurred in outline of
line or text

Specific

Classification

Motor abnormal

Control circuit
abnormal
Adjustment
error

Stain
Damage

Stain

Peeling

Sub

Classification

Unstable

Inadequate

Loose coupling
Damage
Deformation
Deformation or
damage

Reflection tape

Stain

Slipping

Cleaning blade

(1)

Color deviation

<Symptoms>

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Cause