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AR-C170 (serv.man26)
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72
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Service Manual
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Device
Copying Equipment / Simulation
File
ar-c170-sm26.pdf
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Sharp AR-C170 (serv.man26) Service Manual ▷ View online

AR-C170M  SIMULATION  9 - 41
• After replacement of a toner cartridge
• At every 8000 copies (total of print and copy)
(When, however, 8000 copies is reached during a job, the 
operation is stopped after completion of the job.)
(Display items)
If the adjustment is not completed normally, "ERROR" is 
displayed.
In case of an error, the contents of the adjustment are not revised.
(Display items)
44
-2
Purpose
Adjustment
Function 
(Purpose)
Black image density sensor adjustment
Section
Process (Transfer)
Item
Operation
Operation/
Procedure
1. Press the [EXECUTE] key.
The amplifier gain adjustment of the black image 
density sensor is automatically performed.
After completion of the adjustment, the result is 
displayed and the [EXECUTE] key display returns to 
the original state.
Display
Content
Min 
Value
Max 
Value
Default 
value
A PCS_C 
LED ADJ
Color image density 
sensor current 
adjustment value
1
255
51
B PCS K LED 
ADJ
Black image density 
sensor LED current 
adjustment value
1
255
51
C PCS_K 
GAIN
Black image density 
sensor output gain 
(AMP) adjustment value
0
15
0
D PCS_K 
DARK
Black image density 
sensor dark voltage 
level
0
255
0
E PCS_K 
GRND
Black image density 
sensor transfer belt 
surface detection level 
0
255
0
F BELTMAX
Transfer belt surface 
max. detection level 
(Black image sensor)
0
255
0
G BELTMIN
Transfer belt surface 
min. detection level 
(Black image sensor)
0
255
0
H BELTDIF
Difference between 
max. and min. of the 
transfer belt surface 
detection level 
(BELTmax-BELTMIN)
0
255
0
44
-4
Purpose
Setting
Function 
(Purpose)
Image forming section correction, image density 
sensor adjustment conditions setup
Section
Process (Photoconductor, development, transfer)
Item
Picture quality
Operation/
Procedure
1. Select the item to beg set by the scroll key.
2. Enter the set value with the 10-key, and press 
the [OK] key. (The entered value is set.)
Set all to the default values.
Display
Content
Min 
Value
Max 
Value
Default 
value
A
PCS_C TARGET
Color image density 
sensor adjustment target 
value
1
255
108
B
PCS_K TARGET
Black image density 
sensor adjustment target 
value
1
255
201
C
LED_C OUTPUT
Initial current level in 
color image density 
sensor adjustment
1
255
51
D
LED_K OUTPUT
Initial current level in 
black image density 
sensor adjustment
1
255
51
E
PCS ADJSTMENT 
LIMIT
Allowable error level in 
adjustments
1
255
2
F
BELT GROUND 
DIF
Error judgment level for 
the belt surface detection 
level difference
1
255
255
G
BIAS_CL 
STANDARD DIF
Set value (color) of the 
developing basis 
correction start voltage 
difference in high density 
image correction
0
255
50
H
BIAS_BK 
STANDARD DIF
Set value (black) of the 
developing basis 
correction start voltage 
difference in high density 
image correction
0
255
75
I
BIAS PATCH 
INTERVAL
Patch forming developing 
bias voltage interval 
(voltage difference) in 
high density image 
correction
1
255
50
J
Y_PAT TARGET 
ID
Base target density level 
(Y) in high density image 
correction
1
255
108
K
M_PAT TARGET 
ID
Base target density level 
(M) in high density image 
correction
1
255
125
L
C_PAT TARGET 
ID
Base target density level 
(C) in high density image 
correction
1
255
109
M
K_PAT TARGET 
ID
Base target density level 
(K) in high density image 
correction
1
255
22
N
HV BK_GROUND 
LIMIT
Error judgment level for 
belt surface detection 
level difference 
(Allowable range of 
transfer belt surface 
detection level difference 
(mix. - min.) of black 
toner image patch 
position)
1
255
29
O
PCS_C MARKET 
TARGET
Adjustment target value 
(Color image density 
sensor) when adjusting 
the primary LED current 
value by using the 
calibration plate in 
SIM44-36.
1
255
110
AR-C170M  SIMULATION  9 - 42
2. If the operation is normally completed, COMPLETE is 
displayed and the correction result becomes valid.
If the operation is not normally completed, ERROPR is highlighted 
and the detail of the trouble is displayed.
The detail of correction can be checked with SIM 44-9 and SIM 
44-12.
(Result/Detail messages list)
2. [CPY/PRN] key selected: Process control mode is displayed.
[CAD] key selected: Drawing mode is displayed. (Printer, etc.)
[OTHER] key selected: The environment area and the number 
of execution of process control are displayed.
(Displayed items)
P
PCS_C MARKET 
LED-REV
In SIM44-36, the toner 
patch density is read by 
three kinds of LED 
currents with the primary 
LED current adjustment 
value as the center value 
in order to obtain PCS C 
LED ADJ value. This is 
the deflection range of 
the current value in the 
above case. (Color image 
density sensor)
1
255
10
44
-6
Purpose
Operation test/check
Function 
(Purpose)
Used to forcibly execute the image forming section 
correction (high density process correction) (process 
correction).
Section
Process (Photoconductor, developing, transfer, 
cleaning)
Item
Operation
Operation/
Procedure
1. Press the [EXECUTE] key, and the image 
forming section correction is started.
Result display
Content
COMPLETE
Correction is normally completed.
ERROR
An error occurred during correction. 
(The previous correction result is 
maintained.)
COMPULSORY 
INTERRUPTION
Compulsory interruption
Error display
Content
COLOR_SENSOR_
ADJUSTMENT_ERROR
Color image density sensor 
adjustment error
BLACK_GAIN_
ADJUSTMENT_ERROR
Black image density sensor 
gain adjustment error
BLACK_SENSOR_
ADJUSTMENT_ERROR
Black image density sensor 
adjustment error
BLACK_PROCON_ERROR
High-density image density 
correction (process 
correction) error (K)
CYAN_PROCON_ERROR
High-density image density 
correction (process 
correction) error (C)
MAGENTA_PROCON_ERROR
High-density image density 
correction (process 
correction) error (M)
YELLOW_PROCON_ERROR
High-density image density 
correction (process 
correction) error (Y)
CONNECTION_ERROR
Sensor-PCU PWB 
communication trouble
Display
Content
Min 
Value
Max 
Value
Default 
value
44
-9
Purpose
Adjustment/Setting/Operation data output, check 
(display, print)
Function 
(Purpose)
Used to check the data related to the image forming 
section correction (the corrected main charger grid 
voltage in each print mode, the developing bias 
voltage, etc.). (Used to check that correction is 
performed normally or not.)
Section
Process (Photoconductor, developing, transfer, 
cleaning)
Item
Data
Operation data (Machine conditions)
Operation/
Procedure
1. By scrolling with the scroll key, each data of the 
image forming section correction result. can be 
checked.
Display
Content
P (PROCON 
MODE)
Main charger grid voltage/developing bias 
voltage by high density image correction 
(Y, M, C, K)
N (NORMAL MODE 
(MIDDLE)
Actual main charger grid voltage/
developing bias voltage (Normal, medium 
speed mode) (Y, M, C, K)
N (NORMAL MODE 
(LOW)
Actual main charger grid voltage/
developing bias voltage (Normal, low 
speed mode) (Y, M, C, K)
N (NORMAL MODE 
(HIGH)
Actual main charger grid voltage/
developing bias voltage (Normal, high-
speed mode) (Y, M, C, K)
TS (TONER SAVE 
MODE)
Actual main charger grid voltage /
Developing bias voltage (toner save high/
medium/low speed mode) (K)
D (DRAWING 
MODE (MIDDLE)
Actual main charger grid voltage/
developing bias voltage (Drawing, medium 
speed mode) (Y, M, C, K)
D (DRAWING 
MODE (LOW)
Actual main charger grid voltage /
Developing bias voltage (drawing, low 
speed mode) (YMCK)
TEMP AREA
Temperature area
TEMP
Temperature (HEX value)
HUMIDITY AREA
Humidity
HUMIDITY
Humidity (HEX value)
MD X STEP 
(M/L/H)
Photoconductor drum membrane decrease 
correction step (Max. 4 steps) /Correction 
voltage
CONVERSION
Discrimination of Sharp version and other 
company version of toner cartridge 
(0: SHARP, 1: Other company)
DESTINATION
Destination of toner cartridge stored in the 
machine memory
MODEL TYPE
Toner cartridge application model (DM/AR)
CRUM 
DESTINATION (X)
Toner cartridge destination
DV X STEP (X)
Developing bias voltage correction step 
(corretion voltage) for toner cartridge life
AR-C170M  SIMULATION  9 - 43
(Display items)
3. With the front cover of the machine open (cover open/close 
switch OFF), turn on the power.
4. Enter the SIM44-13 mode.
5. Close the front cover of the machine.
6. Press the [EXECUTE] key.
Adjustment is performed automatically. After completion of 
adjustment, the result is displayed and the [EXECUTE] key 
display returns to the original state.
7. Remove the color image density sensor adjustment jig.
(Set items)
If the adjustment is not completed normally, "ERROR" is 
displayed.
In case of an error, the contents of the adjustment are not revised.
(Display items)
When the value exceeds the detection range, "-" is displayed. 
HV
Number of corrections of high density 
image density
HT
Number of corrections of half-tone image 
density
44
-12
Purpose
Adjustment/Setting/Operation data output, check 
(display, print)
Function 
(Purpose)
Used to check the sampling toner image patch 
density data in the image forming section correction 
(high-density correction) (process correction). This 
simulation allows to check if the correction operation 
is performed normally.)
Section
Process (Photoconductor, developing, transfer, 
cleaning)
Item
Data
Operation data (Machine conditions)
Operation/
Procedure
The [TARGET] key and the [PATCH] key are used 
to select the display of the correction target level of 
each color and the toner image patch density 
sampling data.
Display
Content
CARB DATA
Color image density sensor output level when 
the calibration plate is detected by the basis of 
the color image density sensor LED current 
adjustment value.
ID (YMC)
Actual target density level in high density image 
correction
ID (K)
Actual target density level in high density image 
correction
n-1
Toner patch density (previous patch of nth patch 
data) in high density image correction (Center 
voltage - 50v) (n = 1 to 10))
n-2
Toner patch density (Medium patch of nth patch 
data) in high density image correction (Center 
voltage) (n = 1 to 10))
n-3
Toner patch density (following patch of nth patch 
data) in high density image correction (Center 
voltage + 50v) (n = 1 to 10))
44
-13
Purpose
Adjustment
Function 
(Purpose)
Color image density sensor adjustment (Adjustment 
by the adjustment jig)
Section
Process (Transfer)
Operation/
Procedure
1. Open the front cover of the machine.
2. Install the color image density sensor adjustment 
jig to the transfer unit frame, and close the left 
cabinet.
Display
Content
Display
Content
Min 
Value
Max 
Value
Default 
value
A
PCS_C 
CARB ADJ
Color image density 
sensor LED current 
adjustment target 
value
1
255
108
B
PCS_C 
DARK
Color image density 
sensor dark voltage 
level
0
255
0
C
PCS_C LED 
ADJ
Color image density 
sensor current 
adjustment value
1
255
51
44
-14
Purpose
Adjustment/Setting/Operation data output, check 
(display, print)
Function 
(Purpose)
Used to monitor the output level of the fusing 
temperature sensor, the machine temperature 
sensor, and the humidity sensor.
Section
Others
Operation/
Procedure
The fusing temperature, the fusing thermistor 
temperature, and the machine temperature and 
humidity are displayed.
Display
Content
FUSER TEMPERATURE 
CHECK HL1
Fusing temperature display Upper 
(Temperature/AD value)
FUSER TEMPERATURE 
CHECK HL2
Fusing temperature display Lower 
(Temperature/AD value)
PROCESS 
TEMPERATURE
Image process correction 
temperature sensor temperature 
display (Temperature/AD value)
PROCESS HUMIDITY
Image process correction humidity 
sensor humidity display (Relative 
humidity/AD value)
Developing temperature:
-20.0 to 40.0
Humidity:
0.0 to 99.9
Board temperature:
-20.0 to 80.0
AR-C170M  SIMULATION  9 - 44
(Display items)
3. When [NEXT] key is pressed repeatedly, the display changes 
from Coefficient to Reference Value then to Correction Value in 
this sequence.
• When the displayed item is not yet executed, "-" is displayed. In 
case of an error, "ERR" is displayed.
• For the reference value and the correction value, an error 
display is not made, but the previous value is displayed.
3. Enter the set value with the 10-key and press the [OK] key to 
store the set value.
Note: Do not set to other value than the default.
(Items to be set)
44
-21
Purpose
Setting
Function 
(Purpose)
Used to store color balance adjustment data. (Half 
tone image correction initial setting) (After execution 
of color balance adjustment with SIM 46-21, this 
simulation must be executed.)
Section
Picture quality
Operation/
Procedure
1. Press the [EXECUTE] key, and it is highlighted 
and the operation of color balance adjustment 
data (half-tone correction initial data) storing is 
started.
After completion of the execution, the 
[EXECUTE] key returns to the normal display
In case of an error in the above operation, 
"ERROR" is displayed and the color balance 
adjustment data (half-tone initial data) are not 
stored.
44
-22
Purpose
Adjustment/Setting/Operation data output, check 
(display, print)
Function 
(Purpose)
Used to check each color toner patch image density 
UITU in half tone image forming section correction 
(process correction). (This simulation allows to 
check if correction operation is performed normally.)
Section
Process (Photoconductor, developing, transfer, 
cleaning)
Item
Data
Operation data (Machine conditions)
Operation/
Procedure
The toner image patch density data in half-tone 
correction are displayed. 
[1ST STEP]: The toner image patch density 
sampling data in the 1ST STEP are displayed. 
[2ND STEP]: The toner image patch density 
sampling data in the 2ND STEP are displayed.
Display
Content
1ST STEP
Correction operation 1ST STEP toner image 
patch density detection level (n=1 – 5)
2ND STEP
Correction operation 2ND STEP toner image 
patch density detection level (n=1 – 16)
ID-n
PTK/GND
PTC
PTM
PTY
Black image patch 
density detection 
level/Transfer belt 
element detection 
level
Cyan image 
patch 
density 
detection 
level
Magenta 
image patch 
density 
detection 
level
Yellow 
image patch 
density 
detection 
level 
44
-24
Purpose
Adjustment/Setting/Operation data output, check 
(display, print)
Function 
(Purpose)
Used to check the half tone correction result. (This 
simulation allows to check if correction is executed 
properly or not.)
Section
Process (Photoconductor, developing, transfer, 
cleaning)
Item
Data
Operation data (Machine conditions)
Operation/
Procedure
1. Select a page with the scroll key. 
2. Select the color mode with [K], [C], [M], and [Y] 
keys.
44
-25
Purpose
Adjustment/Setting/Operation data output, check 
(display, print)
Function 
(Purpose)
Setting the half tone correction conditions.
Section
Process (Photoconductor, developing, transfer, 
cleaning)
Item
Data
Operation data (Machine conditions)
Operation/
Procedure
1. Select the color mode with [K], [C], [M], and [Y] 
keys.
2. Select the set item with the scroll key.
Item
Default 
setting value
Set 
range
Content
A 1ST  PATCH
31
0  – 255 Half-tone process 
control 1st step 1st 
patch print gradation
B 2ND PATCH
47
0 – 255 Half-tone process 
control 1st step 2nd 
patch print gradation
C 3RD PATCH
63
0 – 255 Half-tone process 
control 1st step 3rd 
patch print gradation
D 4TH PATCH
79
0 – 255 Half-tone process 
control 1st step 4th 
patch print gradation
E 5TH PATCH
255
0 – 255 Half-tone process 
control 1st step 5th 
patch print gradation
Page of 72
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