MX3500N ADJUSTMENTS 6 – 4
ADJ 3 Toner density reference control
level setting
This adjustment must be executed in the following cases:
* When developer is replaced.
NOTE: Be sure to execute this adjustment only when developer is
replaced. Never execute it in the other cases.
1) With the front cabinet open, enter SIM25-2.
2) Close the front cabinet.
3) Select a developing unit to be adjusted.
4) When [EXECUTE] key it pressed, it is highlighted. The devel-
oping roller rotates, and the toner sensor detects toner density,
and the output value is displayed.
The above operation is executed for 3 minutes, and the aver-
age value of the toner density sensor detection level is set
(saved) as the reference toner density control value.
When the reference toner density control adjustment operation
is completed, [EXECUTE] key display return, to normal from
highlight. This makes you know whether the adjustment opera-
tion is completed or not.
The above operation is executed each of the lower speed
mode and the middle speed mode, and the reference toner
density control value is set for each of them.
NOTE: If the operation is interrupted within 3 minutes, the
adjustment result is not reflected (enabled).
When [EXECUTE] key is pressed during rotation, the opera-
tion is stopped and [EXECUTE] key returns to the normal dis-
play.
If [EE-EU], [EE-EL], or [EE-EG] is displayed, setting of the ref-
erence toner density control value is not completed normally.
5) Use SIM24-5 to clear the developer counter.
6) Use SIM44-27 to clear the half-tone correction data.
NOTE:
1) When replacing developer, always replace all the three colors
of Yellow, Magenta, and Cyan.
If only one color is replaced, color balance may be adversely
affected. Black developer can be replaced individually.
2) After replacement of developer or the photoconductor, be sure
to execute SIM44-27 to clear the half-tone correction data.
If the above procedure is neglected, the half-tone correction
may not be performed correctly.
ADJ 4 High voltage adjustments
4-A Main charger grid voltage adjustment
This adjustment must be executed in the following cases:
* When the MC/DV high voltage power PWB is replaced.
* When U2 trouble occurs.
* When the PCU PWB is replaced.
* When EEPROM on the PCU PWB is replaced.
1) Enter SIM8-2 mode.
2) Select an output mode to be adjusted with the mode key and
the scroll key.
3) Enter the adjustment value (specified value) of the middle
speed mode and press [OK] key.
EXECUTE
M
K
0
SIMULA TION N O.25-02
TEST
AUTOMATIC DEVELOPER ADJUSTMENT
EXECUTE
TCD_K
xx
:
TCV_K
xx
:
TCD_C
xx
:
TCV_C
xx
:
TCD_M
xx
:
TCV_M
xx
:
TCD_Y
xx
:
TCV_Y
xx
:
1/1
K
C
M
Y
CLOSE
EXECUTE
0
SIMULATION NO.25-02
TEST
AUTOMATIC DEVELOPER ADJUSTMENT
EXECUTE
AT DEVE ADJ_L_K
xxx
:
AT DEVE VO_L_K
xxx
:
AT DEVE ADJ_L_C
xxx
:
AT DEVE VO_L_C
xxx
:
AT DEVE ADJ_L_M
xxx
:
AT DEVE VO_L_M
xxx
:
AT DEVE ADJ_L_Y
xxx
:
xxx
:
1/2
CLOSE
AT DEVE VO_L_Y
K
C
M
Y
0
SIMULATION NO.25-02
TEST
AUTOMATIC DEVELOPER ADJUSTMENT
EXECUTE
AT DEVE ADJ_L_K
xxx
: AT DEVE VO_L_K
xxx
:
AT DEVE ADJ_L_C
xxx
: AT DEVE VO_L_C
xxx
:
AT DEVE ADJ_L_M
xxx
: AT DEVE VO_L_M
xxx
:
AT DEVE ADJ_L_Y
xxx
:
xxx
:
1/2
CLOSE
AT DEVE VO_L_Y
YK C M
0
SIMULA TION NO.25-02
TEST
AUTOMATIC DEVELOPER ADJUSTMENT
TCD_K
EE-EL
:
TCV_K
:
TCD_C
xx
:
TCV_C
:
TCD_M
EE-EL
:
TCV_M
:
TCD_Y
xx
:
TCV_Y
:
1/1
K
C
M
Y
CLOSE
EXECUTE
or process interrupt
Adjustment completed
Abnormal
end
Error
display
Error name Detail of error
EE-EL EL abnormality Sensor output level, 1.5V or below; control
voltage, 8.0V or above
EE-EU EU abnormality Sensor output level, 3.45V or above;
control voltage, 2.0V or below
EE-EC EC abnormality Sensor output level, other than 2.5V ± 0.2V
EXECUTE
EXECUTE
0
A:
A : xxx
B: xxx
C: xxx
;MIDDLESPEEDGB_K
;MIDDLESPEEDGB_C
;MIDDLESPEEDGB_M
SIMULA TION
MHV/GRID SETTING AND OUTPUT
xxx
230 850
OK
TEST
CLOSE
EXECUTE
D: xxx
; MIDDLE SPEED GB_Y
LOWMIDDLE
0
A:
A: xxx
B:
xxx
C:
xxx
; MIDDLE SPEED GB_K
; MIDDLE SPEED GB_C
; MIDDLE SPEED GB_M
SIMULATION NO.08-02
MHV/GRID SETTING AND OUTPUT
xxx
230 850
OK
TEST
CLOSE
EXECUTE
D:
xxx
;MIDDLESPEEDGB_Y
LOWMIDDLE
10-key
or after 30 sec.
NO.
08-02
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