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MX-M350/M450 N/U  SIMULATION  9 - 33

1) Open the paper feed tray 2 paper feed guide to the max. width

position.

2) Select MAX POSITION with 10-key.

3) Press [START] key.

The max. width detection level is recognized.

4) Press [SYSTEM SETTINGS] key.

5) Open the paper feed tray 3 paper feed guide to the min. width

position.

6) Select MIN POSITION with 10-key.

7) Press [START] key.

The min. width detection level is recognized.

If the above procedures are not completed normally, "ERROR" is
displayed. If completed normally, "COMPLETE" is displayed.

The operating conditions of sensors and detectors are displayed.

The active sensors and detectors are highlighted.

1) Open the document cover and select NO ORIGINAL with 10-

key without placing any document on the document table.

2) Press [START] key.

The sensor level is set without document on the document
table.

3) Place an A3 document on the document table, and select A3

ORIGINAL with 10-key.

4) Press [START] key.

The sensor level is set when detection the document.

If the above procedures are not completed normally, "ERROR" is
displayed. If completed normally, "COMPLETE" is displayed.

The detection output level (A/D value) of the document sensors
(PD1 - PD7) is displayed in real time.

∗

The value in [ ] on the side of each sensor name indicates the
threshold value.

The light receiving value (A/D value) and the threshold value (A/D
value) of PD1 - PD7 are in the range of 1 - 255. The default of
threshold value is 128.

40-12

Adjustment/Setup

Used to adjust the multi-purpose tray width 
detection level.

Paper feed

Operation

Press [START] key.

Press [SYSTEM SETTINGS] key.

41-1

Operation test/Check

Used to check the operation of the document size 
sensor and the related circuit. (The operation of 
the document size sensor can be monitored with 
the LCD display.)

Other

Operation

OCSW

Document cover 
status

Open: Normal display

Close: Highlighted

PD1 - 7

Document detection 
sensor status

No document: Normal display
Document present: Highlighted

SIMULATION 40-12

MULTI PURPOSE TRAY ADJUSTMENT. SELECT 1-2, AND PRESS

START.

1.MAX. POSITION

2.MIN. POSITION

1

SIMULATION 40-12

MULTI PURPOSE TRAY ADJUSTMENT.

MAX. POSITION ··· COMPLETE (or "ERROR")

Press [SYSTEM SETTINGS] key.

Select 1 and press [START] key. 

SIMULATION 40-12

MULTI PURPOSE TRAY ADJUSTMENT.

MIN. POSITION ··· COMPLETE (or "ERROR")

SIMULATION 41-1

PD SENSOR CHECK..

OCSW  

PD1

  

PD2

  

PD3

  PD4  PD5  PD6  PD7

41-2

Adjustment

Used to adjust the document size sensor sensing 
level.

Other

Operation

Select 2 and press [START] key. 
(Error)

Press [SYSTEM SETTINGS] 
key.

41-3

Operation test/Check

Used to check the operation of the document size 
sensor and the related circuit. (The document size 
sensor output level can be monitored with the LCD 
display.)

Other

Operation

OCSW

Original cover status

Open: Normal display

Close: Highlighted

PD1 - 7

PD sensor detection level The value in [ ] indicates the 
adjustment threshold value (SIM41-2 adjustment 
value).

SIMULATION 41-2

PD SENSOR ADJUSTMENT. SELECT1-2, AND PRESS START.

(PLEASE OPEN THE ORIGINAL COVER.) 

1. NO ORIGINAL

2. A3 ORIGINAL

1

SIMULATION 41-2

Press [SYSTEM SETTINGS] key. 

Select 1 and 
press [START] key. 

PD SENSOR ADJUSTMENT.

NO ORIGINAL ··· COMPLETE (or "ERROR at 

PD1 PD2

...")

A3 ORIGINAL ··· INCOMPLETE

SIMULATION 41-2

PD SENSOR ADJUSTMENT.

NO ORIGINAL ··· COMPLETE

A3 ORIGINAL ··· COMPLETE (or "ERROR at 

PD1 PD2

...")

MX-M350/M450 N/U  SIMULATION  9 - 34

1) Select the number corresponding to the setting mode with 10-

key.

2) Press [START] key.

3) Enter the set value.

4) Press [START] key.

When bit =1, correction is made.

1) Select the number corresponding to the setting mode with 10-

key.

2) Press [START] key.

3) Enter the set value.

4) Press [START] key.

*1: Only when this value is 0, control is made with the actual mea-

surement value of the process thermistor (temperature/humid-
ity). When it is not 0, control is made with the forcible setting
value.

43-1

Setting

Used to set the fusing temperature in each 
operation mode.

Fixing (Fusing)

Operation

Item

Default

1

INSIDE NORMAL

Heater inside/normal

190

2

OUTSIDE NORMAL

Heater outside/normal

190

3

INSIDE PREHEAT

Heater inside/preheat

150

4

OUTSIDE PREHEAT

Heater outside/preheat

150

Press [START] key.

Press [SYSTEM SETTINGS] key.

44-1

Setting

Used to set enable/disable of correction 
operations in the image forming (process) section.

Image process 
(Photoconductor/Developing/Transfer/Cleaning)

Operation

Bit

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

0

0

0

0

0

0

0

0

0

Vg4
Vb4
Ld4

Vbr

Vg3
Vb3
Ld3

Vb1
Vb2

Ld2

Vg2

Ld1

Vg1

SIMULATION 41-3

PD SENSOR DATA DISPLAY.

OCSW

PD1[128]: 200     PD2[128]: 200

PD3[128]:  50     PD4[128]:  52

PD5[128]:  51     PD6[128]:  50

PD7[128]:  52

SIMULATION 43-1

1

FUSER TEMPERATURE SET. SELECT 1-4, AND PRESS START.

1. INSIDE NORMAL 

190

2. OUTSIDE NORMAL 

190

3. INSIDE PREHEAT 

150

4. OUTSIDE PREHEAT 

150

SIMULATION 43-1

FUSER TEMPERATURE SET. INPUT VALUE, AND PRESS START.

1. INSIDE NORMAL

190

44-4

Setup

Used to set the target image (reference) density 
level in the developing bias voltage correction.

Process 
(Photoconductor/Developing/Transfer/Cleaning)

Data

Item

1

TEMP. AREA *1

Process environment temperature 
forcible setting value 
(0 - 13 /normal: 0)

2

HUMIDITY AREA *1

Process environment humidity 
forcible setting value 
(0 - 14 /normal: 0)

3

S_WT

Vb rising correction standby time
(0 - 180 sec/default: 90)

4

Vb1

Vb correction amount (first rotation) 
(0 - 150V/default: 50)

5

Vb2

Vb correction amount (second 
rotation) (0-50V/default: 15)

Press [START] key.

Press [SYSTEM SETTINGS] key.

SIMULATION 44-1

PROCESS CORRECTION VALUE SETTING. INPUT VALUE 0-255
AND PRESS START.
BIT0:Vg1, BIT1:Ld1, BIT2:Vg2,  BIT3:Ld2
BIT4:Vb1, Vb2
BIT5:Vg3, Vb3, Ld3
BIT6:Vbr   
BIT7:Vg4, Vb4, Ld4

111

SIMULATION 44-4

3

PROCESS CONTROL VALUE SETTING. SELECT 1-5 AND PRESS
START.
1.TEMP. AREA     

0

2.HUMIDITY AREA  

0

3.S_WT   

90

4.Vb1    

50

5.Vb2    

15

SIMULATION 44-4

PROCESS CONTROL VALUE SETTING. INPUT VALUE, AND PRESS
START.
3.S_WT

 90

MX-M350/M450 N/U  SIMULATION  9 - 35

The output levels of the temperature thermistor and the humidity
thermistor in the developing unit are displayed.

1) Select the number corresponding to the copy mode to be

adjusted with 10-key. (Select one of 3 - 6.)

2) Press [START] key.

3) Enter the copy density level with 10-key.

4) Press P key or [START] key.

The adjustment value is set.

When [START] key is pressed, copying is performed and the
adjustment value is simultaneously set.

Check the density of the printed copy image.

NOTE: When the copy image density is adjusted with this simula-

tion, the copy image densities of all the copy modes are
changed to the copy image density level set with this simu-
lation.

That is, the copy image density of each copy mode set with
SIM 46-9, 10, 11 is changed to the copy image density
level adjusted with this simulation.

To select paper (paper feed tray), perform the following proce-
dures.

1) Enter 0 with 10-key.

2) Press [START] key. (The mode is changed to the paper feed

tray selection mode.)

44-9

Adjustment/Setup/Operation data output/Check 
(Display/Print)

Used to check the data related to the image 
forming section correction (process correction) 
result (corrected main charger grid voltage, the 
developing bias voltage, and the laser power 
voltage in each print mode). (This simulation 
allows to check that correction is performed 
normally or not.)

Image process (Photoconductor/Developing/
Transfer/Cleaning)

Data

Operation data (Machine condition)

DRUM ROTATION TIME

Drum rotation time (sec)

DEVE ROTATION TIME

Developer rotation time (sec)

Vg1 - Vg4

Grid voltage correction value

Vb1 - Vb4

Developing bias correction value

Ld1 - Ld4

Laser power correction value

DESTINATION 1

Machine CRUM destination (1-9)

DESTINATION 2

CRUM destination (1-9)

44-14

Adjustment/Setup/Operation data output/Check 
(Display)

Used to check the output level of the temperature 
sensor and the humidity sensor.

Image process (Photoconductor/Developing)

Operation

TH-DV

Developing temperature thermistor

0 - 255

HUS-DV

Developing humidity thermistor

0 - 255

44-16

Adjustment/Setup/Operation data output/Check 
(Display)

Used to check the toner concentration control 
data.

Image process (Developing)

Operation

HUMIDITY AREA

Humidity area

INT HUMIDITY AREA

Humidity area in development 
adjustment

TEMPERATURE AREA

Temperature area

INT TEMPERATURE AREA

Temperature area in 
development adjustment

TARGET LEVEL

Toner control reference value

SIMULATION 44-9

PROCESS CONTROL DATA DISPLAY.
DRUM ROTATION TIME:

01234567

(sec)

DEVE ROTATION TIME:

01234567

(sec)

Vg1:

30

(V) Vg2:

30

(V) Vg3:

30

(V) Vg4:

30

(V)

Vb1:

30

(V) Vb2:

10

(V) Vb3:

30

(V) Vb4:

10

(V)

Ld1: 

0

    Ld2: 

0

    Ld3: 

0

    Ld4: 

0

DESTINATION1:

1

DESTINATION2:

1

SIMULATION 44-14

SENSOR DATA DISPLAY MONITOR.
TH-DV:      

255

HUS-DV:     

255

DEV REF

Development adjustment 
registration value

HUM

Humidity correction value

(TARGET)

Target value of humidity 
correction

TMP

Temperature correction value

(TARGET)

Target value of temperature 
correction

LIFE

Environment correction value

(TARGET)

Target value of environment 
correction

46-2

Adjustment

Used to adjust the copy density in all the copy 
modes (Auto, Text, Text/Photo, and Photo mode).

Picture quality

Density

Item

Set 

range

Default

0

TRAY SELECT

Paper feed tray 
selection

1

COPY START

Copy START (Default)

2

EXP LEVEL

Exposure level selection

3

AE 3.0

AE mode

0 - 99

50

4

CH 3.0

Text mode 3.0

5

MIX 3.0

Text/Photo mode 3.0

6

PHOTO 3.0

Photo mode 3.0

Normal display

NOW COPYING.

ERROR display

Door open

DOOR OPEN.

Jam

JAM

Paper empty

PAPER EMPTY.

SIMULATION 44-16

TONER CONTROL STANDARD LEVEL DISPLAY.
HUMIDITY AREA: 

11

INT HUMIDITY AREA: 

7

TEMPERATURE AREA: 

6

INT TEMPERATURE AREA: 

6

TARGET LEVEL=DEV REF+HUM(TARGET)+TMP(TARGET)+LIFE(TARGET)
        

133

 = 

118

   + 

10

(

10

)    +  

0

(

0

)     +   

5

(

5

)

MX-M350/M450 N/U  SIMULATION  9 - 36

3) Enter the number corresponding to the paper feed tray to be

used with 10-key.

4) Press [START] key. (The paper feed tray is selected.)

NOTE: When [P] key is pressed after entering an adjustment value

in this simulation, the adjustment value is set. When
START key is pressed, the adjustment value is set and
copying is performed.

1) Select the number corresponding to the copy density adjust-

ment level with 10-key. (Select one of 3 - 11.) 

2) Press [START] key. 

3) Enter the copy density level with 10-key.

4) Press [P] key or [START] key. 

The adjustment value is set. 

When [START] key is pressed, copying is perfumed and the
adjustment value is set simultaneously.

Check the density of printed copy image.

To select paper (paper feed tray), perform the following proce-
dures.

1) Enter 0 with 10-key.

2) Press [START] key. (The mode is changed to the paper feed

tray selection mode.)

3) Enter the number corresponding to the paper feed tray to be

used with 10-key.

4) Press [START] key. (The paper feed tray is selected.)

NOTE: When [P] key is pressed after entering an adjustment value

in this simulation, the adjustment value is set. When
START key is pressed, the adjustment value is set and
copying is performed.

1

TRAY1

TRAY1

2

TRAY2

TRAY2

3

TRAY3

TRAY3

4

TRAY4

TRAY4

5

BPT

Manual feed

Select 2, and press [START] key.

Press [START] key, or 
press [SYSTEM SETTINGS] key.

SIMULATION 46-2

Select other then 0 - 2, and 
press [START] key.

Press [SYSTEM SETTINGS] key. 

SIMULATION 46-2

EXP. LEVEL SETUP (2). INPUT VALUE 0-99, AND PRESS START.

3. AE 3.0

Press [START] key.

SIMULATION 46-2

EXP. LEVEL SETUP (2). NOW COPYING.

50

Press [SYSTEM SETTINGS] key, 
or terminate copying.

SIMULATION 46-2

EXP. LEVEL SETUP (2). SELECT 1-5, AND PRESS START.

(FEED TRAY)

  1. TRAY1  2. TRAY2  3. TRAY3  4. TRAY4

  5. BPT

Press [START] key, or 
press [SYSTEM SETTINGS] key.

1

Select 0, and 
press [START] key.

1

Select 1, 
and press 
[START] key. 

EXP. LEVEL SETUP (2). SELECT 0-6, AND PRESS START.

0. TRAY SELECT 

1

  1. COPY START

2. EXP LEVEL 

1

3. AE 3.0 

50

  4. CH 3.0 

50

5. MIX 3.0 

50

  6. PHOTO 3.0 

50

SIMULATION 46-2

EXP. LEVEL SETUP (2). SELECT 3-6, AND PRESS START.

(EXP. LEVEL SELECT)

  3. AE 3.0    4. CH 3.0

  5. MIX 3.0   6. PHOTO 3.0

1

46-9

Adjustment

Used to adjust the print density for each density
level (display value) in the copy mode (binary -
Text mode). An optional print density can be set
for each density level (display value).

Picture quality

Density

Item

Set 

range

Default

0

TRAY SELECT

Paper feed tray selection

1

COPY START

Copy START (Default)

2

EXP LEVEL

Exposure level selection

3

1.0

Exposure level 1.0

0 - 99

50

4

1.5

Exposure level 1.5

5

2.0

Exposure level 2.0

6

2.5

Exposure level 2.5

7

3.0

Exposure level 3.0

8

3.5

Exposure level 3.5

9

4.0

Exposure level 4.0

10 4.5

Exposure level 4.5

11 5.0

Exposure level 5.0

Normal display

NOW COPYING.

ERROR display

Door open

DOOR OPEN.

Jam

JAM

Paper empty

PAPER EMPTY.

1

TRAY1

TRAY1

2

TRAY2

TRAY2

3

TRAY3

TRAY3

4

TRAY4

TRAY4

5

BPT

Manual feed