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2 - 21 AR-651/810  ERROR CODES AND SELF-DIAGNOSIS

[0] [5]

[POWER]

[Digital key]

(Code)

[START]

[POWER]

OFF/ON

(Exit)

Automatic

adjustment

Procedure 6

[0] [5]

[POWER]

[Digital key]

(Code)

[START]

[POWER]

OFF/ON

(Exit)

Automatic

adjustment

Procedure 15

[CLEAR]

[SET]

or

 [INTERRUPT]

(Stores value in

RAM)

[0] [5]

[POWER]

[Digital key]

(Code)

[CANCEL]

[START]

[START]

[Digital key]

* [JOB STATUS] key

Enter a

value

[POWER]

OFF/ON

(Exit)

[ENERGY

SAVER]

Test

copy

(Stores value in

RAM)

[CLEAR]

(Corrects value)

[SET]

or

 [INTERRUPT]

* Press [JOB STATUS] to enter “–”.

[CLEAR]

(Corrects value)

[Digital key]

(Sub code)

Procedure 13

Note: The fuser roller temperature control at the adjustment mode is different from that at the normal

state. Therefore, the problem of fusing efficiency may be occured in the test copy at the adjustment

mode.

In that case, turn ON the power normally, leave the copier for approx. 3 minuites after it has become

ready state and then start up the adjustment mode again.

AR-651/810  ERROR CODES AND SELF-DIAGNOSIS 2 - 22

Adjustment mode (05)

Accept-

Code

Items to adjust

Function Default

able

Contents

value

200

201

205

206

210

211

221

242

268

269

290

291

Automatic adjustment of auto-toner
sensor (Fuser heater ON)

Correction of auto-toner sensor
(Fuser heater ON)
Developer bias DC output adjustment

Developer bias actual value

Main charger grid bias output adjust-
ment

Main charger grid bias actual value

Transfer transformer DC output ad-
justment/center value

Control status of the drum surface
potential sensor
Image quality control
Display of the exposure corrected value
Image quality control
Display of limiter flag
Enforced performing of Image quality
control
Image quality control
Control status display

ALL

 –

–

ALL

–

0~255

ALL

141

0~255

ALL

–

0~255

ALL

112

0~255

ALL

–

0~255

ALL

175

0~255

ALL

0

0~255

ALL

0

-255

~255

ALL

0

0~255

ALL

–

–

ALL

0

0~255

- As the value increases, the

sensor output increases
correspondingly.

- The value starts changing

approx. 2 minutes after this
adjustment was started and is
automatically set in the range of
2.45 to 2.55V.

( 

 Chapter 3.2.)

As the value increases by “1”,
output from the transformer
increases correspondingly.
( 

 Chapter 3.5.)

The developer bias value at the
latest printing is displayed.

As the value increases by “1”,
output from the transformer
increases correspondingly.
( 

 Chapter 3.5.)

The main charger grid bias value
at the latest printing is displayed.

The voltage for the transfer belt
power supply roller can be
adjusted but cannot be meas-
ured.
* When carrying out an adjustment,

close the front cover and be
careful not to touch the high-
voltage section.

6

3

3

2

3

2

3

2

2

2

6

2

Operation

procedure

2 - 23 AR-651/810  ERROR CODES AND SELF-DIAGNOSIS

Adjustment mode (05)

Accept-

Code

Items to adjust

Function Default

able

Contents

value

292

293

296

305

306

308

340

354

355

356

357

358

Display of the output Sensor light
value of the image source  OFF
quality sensor

Drum surface

Display of the light amount adjustment
result of the image quality sensor

Adjustment of scanner secondary
scanning start position deviation

Adjustment of scanner primary scan-
ning start position deviation

Distortion mode

Adjustment of scanner secondary
scanning reproduction ratio

Adjustment of

for single-sided

RADF paper

original

alignment

for two-sided
original

Automatic adjustment of RADF sen-
sor and EEPROM initialization

Fine adjustment of RADF transport
speed

RADF sideways deviation adjustment

ALL

–

0~1023

ALL

–

0~1023

ALL

–

0~255

ALL

137

0~255

ALL

128

0~255

ALL

–

–

PPC

128

0~255

ALL

10

0~20

ALL

10

0~20

ALL

–

–

ALL

50

0~100

ALL

128

0~255

The output value of the image
quality sensor is displayed when
the sensor light source is OFF.

The output value of the image
quality sensor on the drum
surface (without a test pattern) is
displayed.
LED light amount adjustment of
the sensor, which makes the light
amount reflected from the drum a
standard velue is displayed.
When the value increases by “1”,
the image shifts toward the
leading edge of paper by approx.
0.1213mm.
When the value increases by “1”,
image shifts toward the rear side
of paper by approx. 0.0423mm.
Moves the carriages to the
adjustment position.
(

 Chapter 2.3.4.)

When the value increases by “1”,
the reproduction ratio of the
secondary scanning direction
decreases by approx. 0.025%.
When the value increases by “1”,
the aligning amount increases by
approx. 0.5mm.

Perform the adjustment and
initialization when the ADF board
or sensor of the RADF is re-
placed.
When the value increases by “1”,
the reproduction ratio of the
secondary scanning direction on
original fed from the RADF
increases by approx. 0.1%.
When the value increases by “1”,
the image of original fed from the
RADF shifts toward the rear side
of paper by approx. 0.0423mm.

2

2

2

1

1

6

1

1

1

6

1

1

Operation

procedure

AR-651/810  ERROR CODES AND SELF-DIAGNOSIS 2 - 24

Adjustment mode (05)

Accept-

Code

Items to adjust

Function Default

able

Contents

value

RADF leading

for single-sided

edge position

original

adjustment

f o r   t w o - s i d e d
original

RADF original tray Minimum
width sensor

Maximum

adjustment
Fine adjustment of polygonal motor
rotation speed (Reproduction ratio
adjustment of primary scanning direc-
tion)

Adjustment of primary scanning laser
writing start position

Adjustment of the

Normal speed

exit motor speed

Increased speed

Normal speed
Increased speed

Adjustment of the

Normal speed

reverse motor speed

Increased speed

Normal speed
Increased speed

Top margin adjustment (blank area
at the leading edge of the paper)
Left margin adjustment (blank area
at the left of the paper along the pa-
per feeding direction)
Right margin adjustment (blank area
at the right of the paper along the pa-
per feeding direction)
Bottom margin adjustment (blank
area at trailing edge of paper)

When the value increases by “1”,
the copied image of original fed
from the RADF shifts toward the
trailing edge of paper by approx.
0.1mm.

When the value increases by “1”,
the reproduction ratio of the
primary scanning direction
increases by approx. 0.07%.
(approx.0.5mm/5steps)
When the value increases by “1”,
the writing start position shifts to
the front side by approx.
0.0423mm.
When the value increases by “1”,
the rotation speed increases by
approx. 0.24%.
When the value increases by “1”,
the rotation speed increases by
approx. 0.32%, 0.37% (AR-651)
or 0.43% (AR-810).

Same as 424-0.
Same as 424-1.
When the value increases by “1”,
the rotation speed increases by
approx. 0.195%.
When the value increases by “1”,
the rotation speed increases by
approx. 0.28%, 0.32% (AR-651)
or 0.37% (AR-810).

Same as 426-0.
Same as 426-1.
When the value increases by “1”,
the blank area becomes wider by
approx. 0.0423mm.

365

366

367
368

401

405

410

411

424-0

424-1

425-0
425-1
426-0

426-1

427-0
427-1

430

431

432

433

1

1

6
6

1

1

1

1

13

13

13
13
13

13

13
13

1

1

1

1

ALL

50

0~100

ALL

50

0~100

ALL

–

–

ALL

–

–

PRT

133

0~255

PPC

129

0~255

PPC

128

0~255

PRT

128

0~255

PPC

128

0~255

PPC

128

0~255

PRT

128

0~255

PRT

128

0~255

PPC

128

0~255

PPC

128

0~255

PRT

128

0~255

PRT

128

0~255

PPC

0

0~255

PPC

0

0~255

PPC

0

0~255

PPC

0

0~255

Operation

procedure