MX-5001N ADJUSTMENTS 5 – 10
ADJ 5 Image density sensor (image
registration sensor) adjustment
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 image density sensor (image registration sensor) is
replaced.
* 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
* 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. Therefore, two functions are
assigned to each sensor array
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.
K TC2 PLAIN CL SPX Secondary
transport bias
reference value
Color Standard
paper
Front surface 51 - 255 130 151 2µA - 100µA40µA
L TC2 PLAIN CL DPX Back surface 120 35µA
M TC2 PLAIN BW SPX Black/
White
Front surface 109
130 30µA
N TC2 PLAIN BW DPX Back surface 99
109 25µA
O TC2 HEAVY CL SPX Color Heavy
paper
Front surface 88 20µA
P TC2 HEAVY CL DPX Back surface 78 15µA
Q TC2 HEAVY BW SPX Black/
White
Front surface 78 15µA
R TC2 HEAVY BW DPX Back surface 68 10µA
S TC2 HEAVY2 CL Color Heavy paper 2 88 20µA
T TC2 HEAVY2 BW Black/
White
78 15µA
U TC2 GLOSSY CL Color Gloss paper 88 20µA
V TC2 GLOSSY BW Black/
White
78 15µA
W TC2 OHP CL Color OHP 72
88 12µA
X TC2 OHP BW Black/
White
72
78 12µA
Y TC2 ENVELOPE CL Color Envelope 78 15µA
Z TC2 ENVELOPE BW Black/
White
78 15µA
AA TC2 CLEANING Cleaning process 63 8µA
AB TC2 CLEAN LOW SPD Secondary
transport
cleaning bias
reference value
In low speed print 0 - 255 0 0V - –1500V 0V
AC TC2 CLEAN MIDDLE SPD In middle speed print 0 0V
AD TC2 CLEAN CLEANING Cleaning 85 –500V
AE VPTC LOW SPEED CL PTC applied
voltage control
(AC constant
voltage setting)
Color Low speed 0 - 255 100 0 - (1.94) - 4.01KV 2.47KV
AF VPTC MIDDLE SPEED CL Middle speed 100 2.47KV
AG VPTC LOW SPEED BK Black/
White
Low speed 100 2.47KV
AH VPTC MIDDLE SPEED BK Middle speed 100 2.47KV
AI FPTC LOW SPEED CL PTC applied
voltage control
(frequency
setting value)
Color Low speed 1 - 255 192 0.5KHz - 1.5KHz 0.5KHz
AJ FPTC MIDDLE SPEED CL Middle speed 192 0.5KHz
AK FPTC LOW SPEED BK Black/
White
Low speed 192 0.5KHz
AL FPTC MIDDLE SPEED BK Middle speed 136 0.7KHz
AM DCPTC LOW SPEED CL PTC applied
voltage control
(DC constant
voltage setting
value)
Color Low speed 0 - 255 93 0 - (0.68) - 2.14KV –1.0KV
AN DCPTC MIDDLE SPEED CL Middle speed 149 –1.4KV
AO DCPTC LOW SPEED BK Black/
White
Low speed 149 –1.4KV
AP DCPTC MIDDLE SPEED BK Middle speed 149 –1.4KV
AQ PTC_HT PTC heater
operating
environment
setting
0: OFF
1-6: Environment conditions
(TC environment table 6 steps)
0 - 6 1 Always ON
AR HT_DUTY Setting of the
supply power in
PTC heater
constant
operation (Duty
ratio setting)
0: OFF
10: Lighting-up fully
(10 steps)
0 - 10 5 0% - 100% 50%
Item/Display Content
Setting
range
Default value
Actual output
setting range
Default
value of
actual
output
value
41-sheet
machine
50-sheet
machine
1
1
1
: Oct. 24 2008
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