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AR-C330  SETTING AND ADJUSTMENTS  7 - 38

This adjustment is the CCD gamma adjustment (CCD calibration)
for the copy document copy mode, and is different from the CCD
gamma adjustment (CCD calibration) in the normal document
copy mode (ADJ M17/ADJ 1). There are above two kinds of the
CCD gamma adjustment (CCD calibration), and both adjustments
are required.

This adjustment is required in the following cases:

• After completion of the CCD gamma adjustment (CCD calibra-

tion) (Normal original copy mode) (ADJ M17/ADJ 1)

∗

Check that the table glass, No. 1/2/3 mirrors, and the lens sur-
face are free from dirt and dust.
(If dirt or dust is found, clean with alcohol.)

∗

Check that the patches of BK1 and BK2 of the SIT chart
(UKOG-0280 FCZZ are free from dirt or dust.
If dirt or dust is found, clean with alcohol.
If any damage is found, replace with a new one.

∗

Since this adjustment is based on the normal document copy
mode CCD gamma adjustment (CCD calibration) (ADJ M17/
ADJ 1), the said adjustment must have been completed before
execution of this adjustment.
The copy color balance must also have been adjusted properly.

1) Place the SIT chart (UKOG-0280FCZZ) on the left edge of the

document table, and fit the center of the SIT chart with the
center of the glass holder.

NOTE: Check that the SIT chart (UKOG-0280FCZZ) is in close

contact with the document table.

2) Close the document cover without shifting the SIT chart

(UKOG-0280FCZZ).

3) Make a copy in the Text/Printed Photo mode. (Be sure to use

the specified copy paper.)

4) Set the copy made in procedure 3) on the document table so

that the center of the copy paper comes to the center of the
left edge of the document table.

5) Enter the SIM 63-09 mode and press the [EXECUTE] key.

The automatic adjustment is performed. During the adjustment,
the [EXECUTE] key is highlighted. When the adjustment is com-
pleted, the [EXECUTE] key returns to the normal display.

6) Cancel the simulation mode.

NOTE: The SIT chart (UKOG-0280FCZZ) is affected by lights

(especially ultra-violet rays) and temperature and humid-
ity. Store it in a clear file (nylon file) in a dark place.

The gamma of black toner component images is changed to
adjust the reproduction of the profile of the black character and
line optionally. Especially the thickness of fine black character and
line is changed.

Since the black toner component image quantity differs depending
on the copy mode, be careful of the copy mode selection to check
the adjustment result. Check in the Text/Printed Photo mode.

This adjustment is valid only in the following copy modes:

• Text copy mode

• Text Printed Photo copy mode

• Text Photo copy mode

The black toner component ratio is greatest in the Text copy
mode, and smallest in the Text Photo copy mode.

This adjustment is required in the following cases when the default
was changed:

• When U2 trouble occurs.

• When the ICU MAIN PWB is replaced.

• When the EEPROM of the ICU MAIN PWB is replaced.

1) Enter the SIM 46-27 mode.

2) Enter the adjustment value with the 10-key.

The greater the adjustment value is, the greater the density is,
and vice versa.

Normally set to the default (50).

3) Press the [OK] key.

4) Cancel the simulation, and make a copy in the Text/Printed

Photo mode to check the reproduction of fine black character
and line.

Use a document with black characters and lines on it for
checking.

AR-C330  SETTING AND ADJUSTMENTS  7 - 39

This adjustment is used to adjust color balance and the density
according to the user's demand.

The adjustment is made by setting the max. density level of Y, M
and C in each color.

This adjustment is required in the following cases when the default
was changed:

• When a consumable part (developer, photoconductor drum,

transfer belt) is replaced.

• When the CCD unit is replaced.

• When the scanner (reading) section is cleaned.

• When U2 trouble occurs.

• When the ICU MAIN PWB is replaced.

• When the EEPROM of the ICU MAIN PWB is replaced.

• This adjustment is not required in the normal state, but executed

only when the user requests for.

1) Enter the SIM 46-25 mode.

2) Select the color to be adjusted with the scroll key.

3) Select the color with the color key.

4) Enter the adjustment value of each toner color with the 10-key.

(Default)

5) Cancel the simulation mode and make a copy in the single

color copy mode to check.

This setup is used to set the priority order between brightness and
gradation in the color copy mode. The setup affects the gamma
characteristic in the high-density area.

1) Enter the SIM 26-55 mode.

2) Press ENABLE or DISABLE key.

The user can perform the copy color balance and auto density
adjustment in the user program mode.
SIIM 26-53 is used to Enable or Disable this operation.

NOTE: This setup is performed only when the user understands

the copy color balance and the auto density adjustment
and is capable of performing the operation.

Full explanations on the operating procedure, notes, and
operations must be given to the user.

• When a U2 trouble occurs.

• When the PCU main PWB is replaced.

• When the EEPROM on the PCU main PWB is replaced.

1) Enter the SIM 26-53 mode.

2) Select Enable/Disable with the 10-key.

Disabling = 0: YES
Enabling = 1: NO

3) Press the OK key.

When "0: YES" (Disabling) is selected, the user auto color calibra-
tion (copy color balance, auto density adjustment) menu is not dis-
played in the user program mode.

This adjustment must be performed in the following cases:

• When the original size sensor section is disassembled.

• When the original size sensor section is replaced.

• When a U2 trouble occurs.

• When the PCU main PWB is replaced.

• When the EEPROM of the PCU main PWB is replaced.

1) Enter the SIM 41-1 mode.

Gradually tilt the original detection arm unit. Loosen the origi-
nal cover switch actuator adjustment screw so that the high-
light display of OCSW is turned to the normal display when the
height of the arm unit top from the table glass is 32 ± 0.5mm.

Slide the actuator to adjust. (If the ON timing of the original
cover switch is shifted, the original detection function may mal-
function.)

Default

C

M

Y

RED

0

255

255

GREEN

255

0

255

BLUE

255

255

0

PURPLE

148

238

105

ORANGE

38

140

255

BROWN

131

255

229

ENABLE:

The contrast in the high-density area is increasing,
and the gradation is slightly decreased. (Priority is
given to brightness.)

DISABLE:

Normal picture quality (Priority is given to gradation.)

AR-C330  SETTING AND ADJUSTMENTS  7 - 40

1) Enter the SIM 41-2 mode.

2) Make the sensor adjustment without an original.

With the original cover open and without an original on the
original table, press the [EXECUTE] key.

3) Place A3 (11 x 17) document on the document table and press

the [EXECUTE] key.

Install the adjustment plate so that the projection of the plate
comes to the center of the scribe line.

This adjustment must be performed in the following cases:

• When the operation panel is replaced.

• When a U2 trouble occurs.

• When the PCU main PWB is replaced.

• When the EEPROM of the PCU main PWB is replaced.

1) Enter the SIM 65-1 mode.

2) Touch the four cross marks on the display.

When the crosses are touched correctly, they turn gray. When
all the four crosses are touched, the touch panel adjustment is
completed and the display shows the simulation sub code
entering screen.

If there is any abnormality, the first display is shown again.

∗

When touching the crosses, never use a needle or a pin with a
sharp point.

This adjustment must be performed in the following cases:

When the transfer belt section is disassembled. 

1) Make a copy of gray half tone on the whole surface, and check

for a color balance difference between the front and the rear
sides. Check that there is no difference in the color balance of
the front side and the rear side.

2) If there is a color balance difference between the front and the

rear sides, change the height of the level adjustment angle to
adjust.

It is fixed at the center normally.

32 ± 0.5mm

Original detection arm unit

Table glass

Original cover switch actuator

Actuator adjustment screw

Weight detection of ON 
becomes heavier.

Adjustment plate

Weight detection of ON
becomes lighter

AR-C330  SETTING AND ADJUSTMENTS  7 - 41

This adjustment must be performed in the following cases:

• When the fusing section is disassembled. 

• When a fusing trouble occurs.

• When wrinkles are generated on paper in the fusing section.

1) Select A4 (8.5 x 11) paper.

2) With the document cover open, press the start key of mono-

chrome copy.

3) A copy of black background is made.

4) Pull out the transfer section.

5) Insert paper into the pre-transfer paper guide, and turn the fus-

ing roller knob.

6) With the paper squeezed in the pre-transfer paper guide, wait

for about 10sec.

7) Turn the fusing roller knob to remove the paper from the fusing

section.

8) Measure the dimension (L) of the center section of the glitter-

ing line made by the fusing roller. Check that the dimension is
in the specified range.

Check that the pressure balance between the front and the
rear frame sides is proper.

If the above condition is not satisfied, perform the following proce-
dure.

9) Turn the pressure adjustment screw on the front and the rear

frame sides of the fusing unit to adjust the fusing pressure.

Repeat procedures 2) – 9) until the condition of procedure 8) is
satisfied.

This adjustment must be performed in the following cases:

• When a part in the DC power unit is replaced. 

1) Put the multi-meter on the 3.4V line of the DC main PWB and

GND.

2) Turn VR704 on the DC main PWB to adjust so that the voltage

is 3.4V.

1) Put the multi-meter on the 5.0V line of the DC main PWB and

GND.

2) Turn VR703 on the DC main PWB to adjust so that the voltage

is 5.0V.

1) Put the multi-meter on the 24V line of the DC main PWB and

GND.

2) Turn VR702 on the DC main PWB to adjust so that the voltage

is 24.0V.

Value L

6.5 – 7.5 mm

LR

L (Center)

LF

LR = LF