DOWNLOAD Sharp AR-285 (serv.man14) Service Manual ↓ Size: 1.99 MB | Pages: 20 in PDF or view online for FREE

Unit

Parts

Developing unit

A. Toner hopper

B. Developing side seal (F/R)

Drum unit

A. OPC drum

B. Drum separation pawl

C. Cleaner blade

D. Toner reception seal

E. Main charger 

F. Transfer/separation charger

Discharge lamp

A. Discharge lamp

Scanner unit

A. Table glass

B. White reference glass (SPF scanning glass)

C. Copy lamp

D. CCD unit

ICU peripheral

A. HD unit

B. ICU PWB

Laser scan unit

A. Laser scan unit

Manual paper
feed unit

A. Manual paper feed sensor

B. Rollers/torque limiters 

500 tray paper
feed unit

A. Tray unit

B. Tray paper feed unit

Transport unit

A. Transport roller

Suction unit

A. Suction unit

Fusing unit

A. Thermistor

B. Upper fusing separation pawl

C. Lower fusing separation pawl

D. Lower heat roller

E. Upper heat roller

F. Upper heat roller gear

2 Tray paper exit
unit

A. Paper exit/transport roller

B. Paper exit roller

PCU/AC power/
High voltage
power/Main motor

A. PCU/AC power/High voltage power/
  Main motor

Major drive unit

A. Major drive unit

Lift-up unit

A. Lift-up unit

SPF unit

A. Upper cover

B. Pick-up roller/paper feed roller

C. Transport roller

RADF unit

A. RADF unit

B. Document transport belt

C. Paper feed unit

D. Semi-circular roller/paper feed roller

E. Separation roller

F. Paper exit unit

ADU

A. ADU

B. Upper transfer section

C. Transfer roller

D. Reverse, transfer roller

After replacing developer, execute SIM 24-5 to clear the developer
counter.

Attache the developing side seals to the dimensions specified
above.

1)

2)

10 – 1

After replacing the OPC drum, execute SIM 24-7 to clear the
counter. When installing the OPC drum, apply starting powder
(UKOG-0088CSZZ).

Be careful to scratch the pawl lead edge (the contact section with
the drum) and keep it from foreign materials.

Do not touch the blade and the rubber section. When installing,
apply starting powder (UKOG-0088CSZZ).

1)

1)

2)

1)

4)

1)

1)

3)

2)

6)

5)

1)

3)

3)

3)

2)

4)

10 – 2

Do not touch the seat section.

Adjust the screen grid tension so that the marking on the screen
holder and the marking on the MC holder come on a same line.
Tighten screw a, then tighten screw b.

1)

2)

1)

1)

3)

3)

4)

2)

1)

3)

b

a

Hallmark ±1mm

1)

2)

1)

1)

2)

1)

10 – 3

When replacing the charger wire:

•

Be careful not to twist or bend the wire.

•

Stretch the wire so that the tension spring length is as shown
above.

•

Securely put the charger wire in the groove.

Table glass installing direction 

•

Install the table glass so that the white marking on the glass is
in the paper feed direction rear side.

The shape of the glass holder differs depending on the model.

Attach the glass along the guide so that the white pain section of
the white reference glass faces downward as shown above.

When handling the white reference glass, be careful not to scratch
the white pain section and keep it from dirt or dust.

3)

2)

1)

4)

1)

2)

3)

1)

1)

2)

3)

Upper side

Guide

White paint section

Paper exit
side

10 – 4