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∗

Attache the developing side seals to the dimensions specified
above.

No.

Name

Work item

Cycle

Remark

AR-250/280/281/
285/286/335/336

AR-405

AR-501/505

1

DV seal

Check

80 K

90 K

125K

For attachment position, refer to
DISASSEMBLY AND ASSEMBLY.

Replace

160 K

180 K

250K

For attachment position, refer to
DISASSEMBLY AND ASSEMBLY.

2

DSD collar

Clean

80 K

90 K

125K

3

DV side seal F

Check

80 K

90 K

125K

Replace

160 K

180 K

250K

For attachment position, refer to
DISASSEMBLY AND ASSEMBLY.

4

DV side seal R

Check

80 K

90 K

125K

Replace

160 K

180 K

250K

For attachment position, refer to
DISASSEMBLY AND ASSEMBLY.

5

MG bearing

Check

—

—

125K

8 – 5

8/6/1999

1

1

2

1

1

1

2

1

4

1

1

3

2

6

5

1

1

2

3

4

5

6

No.

Name

Work item

Cycle

Remark

AR-250/280/281/
285/286/335/336

AR-405

AR-501/505

1

Drum

Check

80 K

90 K

125K

Installed when shipping (Alldestinations)

Replace

160 K

180 K

250K

Execute SIM 24-7 after replacement.

∗

After replacing the OPC drum, execute SIM 24-7 to clear the counter.

∗

When installing the OPC drum, apply starting powder(UKOG-0088CSZZ).

8/6/1999

8 – 6

(The illustrations are the same as those of the AR-335.)

∗

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

(The illustrations are the same as those of the AR-335.)

∗

Do not touch the blade and the rubber section.

∗

When installing, apply starting powder (UKOG-0088CSZZ).

∗

Do not touch the seat section.

1

3

3

3

2

4

4

3

3

1

2

No.

Name

Work item

Cycle

Remark

AR-250/280/281/
285/286/335/336

AR-405

AR-501/

505

1

Cleaner blade

Replace

80 K

90 K

125K

2

Drum mark sensor

Clean

80 K

90 K

125K

After cleaning, perform SIM 44-2.

3

Drum density sensor

Clean

80 K

90 K

125K

After cleaning, perform SIM 44-2.

4

Drum separation pawl unit

Replace

80 K

90 K

125K

Change the installing position at every 80 K

5

Toner reception seal

Replace

80 K

90 K

125K

6

Toner reception auxiliary blade Clean

80 K

90 K

125K

7

Cleaner side seal F/R

Check

—

90K

125K

8 – 7

8/6/1999

*

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.

2

1

3

b

a

Hallmark ±1mm

1

2

No.

Name

Work item

Cycle

Remark

AR-250/280/281/
285/286/335/336

AR-405

AR-501/505

1

Charging plate (Saw tooth)

Replace

80 K

90 K

125K

2

Screen grid

Replace

80 K

90 K

125K

AR-505

8/6/1999

8 – 8