ADJ 2
Developing bias voltage adjustment
∗
Adjustment value
Range (MIN)
–305 V
Range (MAX)
–315 V
Standard value
–310 V
Default
–310 V
∗
Program used
Test command (Simulation)
MODE
Normal
MAIN CODE
8
SUB CODE
2
∗
Execution condition (time)
Enforcement
time
JOB No
Content
S 009/Ua 004
When replacing the high
voltage/motor drive PWB unit
Cycle
—
Condition
1) Print (copy) density is too
dark or too light.
Though copy density
adjustment is executed with
the Test command
(simulation) 46-1,
satisfactory denstiy cannot
be obtained.
2) Ghost is generated.
∗
Work content
1) Connect between the power PWB and the MCU PWB, the high
voltage/motor drive PWB unit and the operation unit with har-
nesses.
2) Manually turn on the cover switch and turn on the power.
3) Execute SIM 8-2. (The developing bias voltage is outputted.)
4) Measure the developing bias voltage with the digital multi-meter
(effective value meter).
Adjust VR802 so that the output voltage is –310
±
5V.
∗
Troubles caused by improper work
1) Copy (print) defective
(Insufficient density, background copy, dirt, etc.)
(Ghost)
2) The copy density cannot be adjusted with SIM 46-1.
3) Photoconductor damage
∗
After-work
JOB No.
Content
ADJ M1
Copy density adjustment
∗
Necessary tools
Name
Digital multi-meter/High voltage probe
Parts code/Price rank
—
Note
Internal impedance of 1000M
Ω
or
above, effective value measurement
(Recommendable unit: FLUKE
87/FLUKE 80K-40)
∗
Note
1) Use a digital multi-meter (effective value meter, internal im-
pedance of 1000M
Ω
or above).
Connect the capacitor and the diode to the tip of the digital multi-
meter for measurement. If the above condition are not satisfied,
the proper measurement of voltage cannot be made.
2) Since a high voltage is outputted, be careful of electric shock.
CHI M1
Image process (high votlage) power
check
∗
Specified values
Range (MIN)
+3200V
Range (MAX)
+3700V
Standard value
+3500V
Default
+3500V
∗
Progarm used
Test command (Simulation)
MODE
Normal
MAIN CODE
8
SUB CODE
2
FO-3800M
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Содержание FO-3800M
Страница 115: ...S001 P001 S001 P007 CLN S001 P003 S001 P005 S001 P002 S001 P006 S001 P004 CLN FO 3800M 9 4 ...
Страница 142: ...S009 Ua002 S009 Ua003 S009 Ua004 S009 Ua005 S009 Ua006 S009 Ua001 S009 Ua001 002 S009 Ua001 001 FO 3800M 9 31 ...
Страница 174: ...SMP1 SMP2 FO 3800M 10 25 ...
Страница 175: ...SMP3 SMP4 FO 3800M 10 26 ...
Страница 176: ...SMP5 SMP6 a b D FO 3800M 10 27 ...
Страница 177: ...SMP7 SMP8 FO 3800M 10 28 ...
Страница 178: ...SMP9 SMP10 SMP11 Streaks and dots in the pitch of about 78mm Streaks and dots in the pitch of about 45mm FO 3800M 10 29 ...