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MX-C400P/C380P, MX-B400P/B380P/B382P  ADJUSTMENTS  4 – 4

A

TC1 LOW SPEED CL K

Primary 
transfer bias 
adjustment 
value

Color mode

K

Low speed 

mode

51 - 255

95

2 - 30

A

8

A

B

TC1 MIDDLE SPEED CL K

Middle speed 

mode

51 - 255

131

2 - 30

A

13

A

C

TC1 LOW SPEED CL C

C

Low speed 

mode

51 - 255

95

2 - 30

A

8

A

D

TC1 MIDDLE SPEED CL C

Middle speed 

mode

51 - 255

131

2 - 30

A

13

A

E

TC1 LOW SPEED CL M

M

Low speed 

mode

51 - 255

95

2 - 30

A

8

A

F

TC1 MIDDLE SPEED CL M

Middle speed 

mode

51 - 255

131

2 - 30

A

13

A

G

TC1 LOW SPEED CL Y

Y

Low speed 

mode

51 - 255

95

2 - 30

A

8

A

H

TC1 MIDDLE SPEED CL Y

Middle speed 

mode

51 - 255

131

2 - 30

A

13

A

I

TC1 LOW SPEED BW K

Black/White 

mode

K

Low speed 

mode

51 - 255

95

2 - 30

A

8

A

J

TC1 MIDDLE SPEED BW K

Middle speed 

mode

51 - 255

131

2 - 30

A

13

A

K

TC2 PLAIN CL SPX

Secondary 
transfer bias 
adjustment 
value

Color mode

Standard paper 

mode

Front surface 

mode

51 - 255

111

–2 - –80

A

–25

A

L

TC2 PLAIN CL DPX

Back surface 

mode

51 - 255

124

–2 - –80

A

–30

A

M

TC2 PLAIN BW SPX

Black/White 

mode

Front surface 

mode

51 - 255

111

–2 - –80

A

–25

A

N

TC2 PLAIN BW DPX

Back surface 

mode

51 - 255

111

–2 - –80

A

–25

A

O

TC2 HEAVY CL SPX

Color mode

Heavy paper 

mode

Front surface 

mode

51 - 255

93

–2 - –80

A

–10

A

P

TC2 HEAVY CL DPX 

Back surface 

mode

51 - 255

93

–2 - –80

A

–10

A

Q

TC2 HEAVY BW SPX

Black/White 

mode

Front surface 

mode

51 - 255

93

–2 - –80

A

–10

A

R

TC2 HEAVY BW DPX

Back surface 

mode

51 - 255

93

–2 - –80

A

–10

A

S

TC2 OHP CL

OHP

Color mode

51 - 255

85

–2 - –80

A

–8

A

T

TC2 OHP BW 

Black/White mode

51 - 255

85

–2 - –80

A

–8

A

U

TC2 ENVELOPE CL

Envelope

Color mode

51 - 255

124

–2 - –80

A

–30

A

V

TC2 ENVELOPE BW

Black/White mode

51 - 255

124

–2 - –80

A

–30

A

W

TC2 THIN CL

Thin paper

Color mode

51 - 255

111

–2 - –80

A

–25

A

X

TC2 THIN BW

Black/White mode

51 - 255

111

–2 - –80

A

–25

A

Y

TC2 GLOSSY CL

Gloss paper

Color mode

51 - 255

72

–2 - –80

A

–10

A

Z

TC2 GLOSSY BW

Black/White mode

51 - 255

72

–2 - –80

A

–10

A

AA

TC2 CLEANING

Cleaning mode

51 - 255

67

–2 - -80

A

–8

A

AB

TC2 CLEAN LOW SPD

Secondary 
transfer 
cleaning bias 
adjustment 
value

Low speed print mode

0 - 255

16

–100V - 1500V

0V

AC

TC2 CLEAN MIDDLE SPD

Middle speed print mode

0 - 255

16

–100V - 1500V

0V

AD

TC2 CLEAN CLEANING 

Cleaning mode

0 - 255

143

–100V - 1500V

800V

AE

PTC LOW SPEED CL

PTC current 
output 
adjustment 
value

Color mode

Low speed mode

0 - 255

133

0

A - –700A

–300

A

AF

PTC MIDDLE SPEED CL

Middle speed mode

0 - 255

133

0

A - –700A

–300

A

AG

PTC LOW SPEED BW

Black/White mode

Low speed mode

0 - 255

133

0

A - –700A

–300

A

AH

PTC MIDDLE SPEED BW

Middle speed mode

0 - 255

133

0

A - –700A

–300

A

AI

CASE VOLT LOW CL

PTC case 
voltage 
adjustment 
value

Color mode

Low speed mode

0 - 255

0

0V - –1000V

0V

AJ

CASE VOLT MID CL

Middle speed mode

0 - 255

0

0V - –1000V

0V

AK

CASE VOLT LOW BW

Black/White mode

Low speed mode

0 - 255

0

0V - –1000V

0V

AL

CASE VOLT MID BW

Middle speed mode

0 - 255

0

0V - –1000V

0V

AM

PEEL VOLT LOW CL

Separation 
discharge 
adjustment 
value

Color mode

Low speed mode

51 - 255

200

 –50 - –3000V

–2200V

AN

PEEL VOLT MIDDLE CL

Middle speed mode

51 - 255

200

 –50 - –3000V

–2200V

AO

PEEL VOLT LOW BW

Black/White mode

Low speed mode

51 - 255

200

 –50 - –3000V

–2200V

AP

PEEL VOLT MIDDLE BW

Middle speed mode

51 - 255

200

 –50 - –3000V

–2200V

MX-C400P/C380P, MX-B400P/B380P/B382P  ADJUSTMENTS  4 – 5

: ’11/Mar/15

 

 

This adjustment is needed in the following situations:
* When the MC high voltage power PWB is replaced.
* U2 trouble has occurred.
* The PCU PWB has been replaced.
* The EEPROM of the PCU PWB has been replaced.
1) Enter the SIM 8-2 mode.

2) Select an output mode and an item to be adjusted.
3) Set the adjustment value (specified value) of the middle speed

mode. (Enter the set value, and press [OK] key and OSA
shortcut key.)
When [EXECUTE] button is selected and [OK] key is pressed,
the voltage corresponding to the value entered in procedure 3)
is outputted for 30 sec and the set value is fixed.
With [EXECUTE] button selected, press [OK] key again, and
the simulation is terminated.
Enter the adjustment value of each mode which is specified on
the label attached on the MC high voltage power PWB.

NOTE: Normally when an adjustment value is set, there is no need

to press [EXECUTE] button. If [EXECUTE] button should
be pressed, a high voltage would be outputted with the
OPC drum stopped, affecting an adverse effect on the
OPC drum. Be careful of that.

NOTE: Note that the adjustment value may differ depending on the

MC high voltage power PWB.
Since the adjustment value label is attached on the MC
high voltage PWB, the PWB must be removed in order to
check the adjustment value.
This is a troublesome procedure. Therefore, it is advisable
to put down the adjustment value in advance.

When the adjustment value (specified value) of the middle speed
mode is set, the adjustment values of the other modes are auto-
matically set according to the middle speed mode setting in a cer-
tain relationship.

NOTE: Since the high voltage output cannot be checked with a

digital multi meter in this model, a judgment of the output
must be made by checking the print image quality.

 

This adjustment is needed in the following situations:
* When the MC high voltage power PWB is replaced.
* U2 trouble has occurred.
* The PCU PWB has been replaced.
* The EEPROM of the PCU PWB has been replaced.
1)

Go through the modes specified in Simulation 8-1.

2)

Select an output mode and an item to be adjusted.

3)

Set the adjustment value (specified value) of the middle speed
mode. (Enter the set value, and press [OK] key and OSA
shortcut key.)
When [EXECUTE] button is selected and [OK] key is pressed,
the voltage corresponding to the value entered in procedure 3)
is outputted for 30 sec and the set value is fixed.
With [EXECUTE] button selected, press [OK] key again, and
the simulation is terminated.
Enter the adjustment value of each mode which is specified on
the label attached on the MC high voltage power PWB.

NOTE: Normally when an adjustment value is set, there is no need

to press [EXECUTE] button. If [EXECUTE] button should
be pressed, a high voltage would be outputted with the
OPC drum stopped, affecting an adverse effect on the
OPC drum. Be careful of that.

NOTE: Note that the adjustment value may differ depending on the

MC high voltage power PWB.
Since the adjustment value label is attached on the MC
high voltage PWB, the PWB must be removed in order to
check the adjustment value.
This is a troublesome procedure. Therefore, it is advisable
to put down the adjustment value in advance.

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MIDDLE

A

MIDDLE 
SPEED GB_K

K charging/grid bias set 
value at middle speed

150 - 850

LOW

A

LOW SPEED 
GB_K

K charging/grid bias set 
value at low speed

150 - 850

MIDDLE

A

MIDDLE SPEED 
DVB_K

K developing bias set 
value at middle speed

0-600

LOW

A

LOW SPEED 
DVB_K

K developing bias set 
value at low speed

0-600

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MX-C400P/C380P, MX-B400P/B380P/B382P  ADJUSTMENTS  4 – 6

: ’11/Mar/15

When the adjustment value (specified value) of the middle speed
mode is set, the adjustment values of the other modes are auto-
matically set according to the middle speed mode setting in a cer-
tain relationship.

NOTE: Since the high voltage output cannot be checked with a

digital multi meter in this model, a judgment of the output
must be made by checking the print image quality.

 

This adjustment is needed in the following situations:
* When the TC high voltage PWB is replaced.
* U2 trouble has occurred.
* The PCU PWB has been replaced.
* The EEPROM of the PCU PWB has been replaced.
1) Go through the modes specified in Simulation 8-6.

2)

Select an item to be adjusted.

3)

Set the adjustment value (specified value) of the middle speed
mode. (Enter the set value, and press [OK] key and OSA
shortcut key.)
When [EXECUTE] button is selected and [OK] key is pressed,
the voltage corresponding to the value entered in procedure 3)
is outputted for 30 sec and the set value is fixed.
With [EXECUTE] button selected, press [OK] key again, and
the simulation is terminated.
By setting the default value (specified value), the specified out-
put is provided.

NOTE: Normally when an adjustment value is set, there is no need

to press [EXECUTE] button. If [EXECUTE] button should
be pressed, a high voltage would be outputted with the
OPC drum stopped, affecting an adverse effect on the
OPC drum and the transfer belt. Be careful of that.

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A

TC1 LOW SPEED BW K

Primary transfer bias 
reference value

Low speed mode

51 - 255

95

2 - 30

A

8

A

B

TC1 MIDDLE SPEED BW K

Middle speed mode

51 - 255

131

2 - 30

A

13

A

C

TC2 PLAIN BW SPX

Secondary transfer 
bias reference value

Standard 

paper mode

Front surface mode

51 - 255

111

–2 - –80

A

–25

A

D

TC2 PLAIN BW DPX

Back surface mode

51 - 255

111

–2 - –80

A

–25

A

E

TC2 HEAVY BW SPX

Heavy paper 

mode

Front surface mode

51 - 255

93

–2 - –80

A

–10

A

F

TC2 HEAVY BW DPX

Back surface mode

51 - 255

93

–2 - –80

A

–10

A

G

TC2 OHP BW 

OHP

51 - 255

85

–2 - –80

A

–8

A

H

TC2 ENVELOPE BW

Envelope

51 - 255

124

–2 - –80

A

–30

A

I

TC2 THIN BW

Thin paper

51 - 255

111

–2 - –80

A

–25

A

J

TC2 GLOSSY BW

Gloss paper

51 - 255

72

–2 - –80

A

–10

A

K

TC2 CLEANING

Cleaning mode

51 - 255

67

–2 - -80

A

–8

A

L

TC2 CLEAN LOW SPD

Secondary transfer 
cleaning bias 
reference value

Low speed print mode

0 - 255

16

–100V - 1500V

0V

M

TC2 CLEAN MIDDLE SPD

Middle speed print mode

0 - 255

16

–100V - 1500V

0V

N

TC2 CLEAN CLEANING 

Cleaning mode

0 - 255

143

–100V - 1500V

800V

O

PTC LOW SPEED BW

PTC current output 
reference value

Low speed mode

0 - 255

133

0

A - –700A

–300

A

P

PTC MIDDLE SPEED BW

Middle speed mode

0 - 255

133

0

A - –700A

–300

A

Q

CASE VOLT LOW BW

PTC case voltage 
reference value

Low speed mode

0 - 255

0

0V - –1000V

0V

R

CASE VOLT MID BW

Middle speed mode

0 - 255

0

0V - –1000V

0V

S

PEEL VOLT LOW BW

Separation discharge 
reference value

Low speed mode

51 - 255

200

 –50 - –3000V

–2200V

T

PEEL VOLT MIDDLE BW

Middle speed mode

51 - 255

200

 –50 - –3000V

–2200V

MX-C400P/C380P, MX-B400P/B380P/B382P  ADJUSTMENTS  4 – 7

 

There are some parts variations in the image density sensor sec-
tion. Therefore, the absolute detection level differs in each
machine. To correct this, calibration is executed.
This adjustment is needed in the following situations:
* When the color image density sensor (image registration sensor

F) is replaced.

* When the image registration sensor unit is replace.
* U2 trouble has occurred.
* The PCU PWB has been replaced.
* The EEPROM of the PCU PWB has been replaced.
The targets of the adjustment are the color image density sensor
(image registration sensor F) and the black image density sensor
(image registration sensor R). There are following adjustment
methods.
* Color image density sensor (image registration sensor F) calibra-

tion SIM44-13

* Color image density sensor (Image registration sensor F) calibra-

tion value setting (SIM44-61)

* Black image density sensor (image registration sensor R) cali-

bration SIM44-2

NOTE: The color image density sensor detects color image density

and image registration on front frame side, the black image
density sensor detects black image density and image reg-
istration on rear frame side. That is, two functions is
assigned to each one sensor.
Before executing this adjustment, check to confirm the fol-
lowing items.

* Check to confirm that the color image density sensor (image reg-

istration sensor F) and the black image density sensor (image
registration sensor R) are clean.

* Check to confirm that the image density sensor calibration plate

is clean.

* Check to confirm that the transfer belt is clean and free from

scratches.

 

Perform the color image density sensor (image registration sensor
F) calibration in one of the following methods.
* Color image density sensor (Image registration sensor F) calibra-

tion value setting (Method by SIM44-61)
When the registration sensor unit is replaced, the calibration
value is set manually with this method. The calibration jig is not
required.
When, however, the color image density senor itself is replaced,
use the calibration jig and execute SIM44-13 to perform calibra-
tion.

* Color image density sensor (Image registration sensor F) calibra-

tion value setting (Method by SIM44-13)
When the color image density sensor itself is replaced, use the
calibration jig and perform calibration with this method.

(Color image density sensor (Image registration sensor F) cal-
ibration value setting (Method by SIM44-61))
1)

Enter the SIM44-61 mode.

2)

Select an item to be set.

3)

Set the set value. (Enter the set value, and press [OK] key and
OSA shortcut key.)
The set value is the specified on the label attached to the reg-
istration sensor unit.

(Color image density sensor (Image registration sensor F) cal-
ibration (Method by SIM44-13))
1)

Enter the SIM44-13 mode.

2)

With [EXECUTE] button selected, press [OK] key.
The shutter plate of the color image density sensor (Image
registration sensor F) is opened, and the message that the pri-
mary transfer unit is removed is displayed.

A

PCS_CL CARB OUT

Calibration plate sensor 
value

1 - 255

108

B

PCS_CL LED ADJ

Color sensor light 
emitting quantity 
adjustment value

1 - 255

21

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