Canon imagePRESS 1135 Series Service Manual page 1127

■ HV-PRI
COPIER> ADJUST> HV-PRI
PRIMARY Current adj of primary charging assy
Lv.1 Details To adjust the primary current of the primary charging assembly
manually.
As the value is increased by 1, the current is decreased by 200 uA.
Use case • To adjust the primary current of the primary charging assembly
manually.
• As the value is increased by 1, the current is decreased by 200
uA.
Display/adj/set range 0 to 4
0: 1600 uA, 1: 1400 uA, 2: 1200 uA, 3: 1000 uA, 4: 800 uA
Unit 200 uA
Default value 0
GRID Grid voltage seting at non-potential con
Lv.1 Details To set the grid voltage Vgrid of the primary charging assembly at
D-max control and potential control OFF.
As the value is increased, image gets darker but fogging occurs.
As the value is increased by 1, the voltage is increased by 1 V (entry
should be by 50 unit).
Use case When adjusting the developing condition manually to check the high-
voltage output at the failure of potential sensor.
Caution Do not use this at normal service.
This is effective when the following is set to "0" (potential control
OFF); COPIER> OPTION> FNC-SW> PO-CNT.
When fogging occurs, increase the laser power at POWER (Potential
VL at bright area is decreased.)
Display/adj/set range 500 to 900
Unit 1 V
Default value 750
Related service mode COPIER> OPTION> FNC-SW> PO-CNT
COPIER> ADJUST> DEVELOP> DVDCOUTK
COPIER> ADJUST> LASER> POWER
8
Service Mode > COPIER > ADJUST (Adjustment Mode) > HV-TR
T-8-41
8 Service Mode > COPIER > ADJUST (Adjustment Mode) > HV-TR
■ HV-TR
COPIER> ADJUST> HV-TR
PRE-TR Set pre-pri-trns charg current adj value
Lv.1 Details To set the output adjustment value of pre-primary transfer charge
current.
As the value is incremented by 1, the current changes by 1 micro A.
+: Decrease
-: Increase
Actually, the current (setting value x (-1) - 150 micro A) flows.
When changing the setting value to -100, 0, or 100, the current value
becomes -50 micro A, -150 micro A, or -250 micro A respectively.
When the rear image toner splash occurs, decrease the value.
Use case When the DC controller PCB is replaced or RAM is cleared.
When the image failure occurs (rear image toner splash)
Adj/set/operate method Enter the setting value and press OK key.
Caution Do not use this at the normal service. If the value is decreased for
the purpose of foggy adjustment, fixing splash gets worse.
Display/adj/set range -300 to 300
Unit uA
Appropriate target value 0 to 150
Default value 0
2TR-TGT1 Sec transfer current adj value (Ev 0)
Lv.2 Details To set the target current that is applied to the secondary transfer
inner roller under the condition of absolute moisture ratio 0.63 g/m
or less.
When low-voltage mottled image or toner splash on solid image
occurs, increase the current.
When high-voltage mottled image or density loss due to excessive
transfer occurs, decrease the current.
As the value is changed by 1, current is increased/decreased by
5 uA.
+: Increase
-: Decrease
Use case When image failures occur on all the paper types (mottled image/
density loss due to excessive transfer/toner splash on solid image)
Adj/set/operate method Enter the setting value and press OK key.
Caution Increase/decrease the value 1 by 1 and check the symptom each
time.
Display/adj/set range -10 to 10
Unit 5 uA
Default value 0
8-184
3
8-184