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KONICA MINOLTA 8050/CF5001/C500/8150 Field Service Ver.3.0 Dec. 2004
I
ADJUSTMENT
1. HOW TO USE THE
ADJUSTMENT SECTION
1.1
Composition
This part "Adjustment" describes items to be
adjusted and their method of adjustment that are
required by this machine and gives detailed expla-
nations.
A. Checking before starting work
When conducting claims in the field, it is necessary
to check in advance the following:
1. Are the power source and voltage secured in
accordance with the specifications?
2. Is the power source properly grounded?
3. Is any equipment that consumes repeatedly a
lot of electricity connected to the same power
source? (e.g.: Electric noise sources such as
elevator and air conditioner)
4. Are environmental conditions suitable for the
machine?
• High temperature and high humidity, direct sun-
light, ventilation, etc.
• Levelness of the location on which the machine
is installed.
5. Does the cause of poor images lie in the original
itself?
6. Is density selected properly?
7. Is the original glass stained?
8. Is proper paper used for copy?
9. Are copy materials replaced with new ones at
their life? (e.g.: Developer, drum, cleaning
blade, etc.)
10. Is toner filled?
B. Checkpoints when conducting on-site ser-
vice
Due attention should be paid to the following when
repairing the machine.
1. In this machine, when the main power switch
(SW1) is turned off, only one side of the AC line
HOW TO USE THE ADJUSTMENT SECTION
is shut off. So, be sure to unplug the power cord
from the power outlet. Also, when operating the
machine with the power supplied, be careful of
the scan of the exposure unit and be sure not to
get caught by the gear.
2. The fixing section may be very hot. Be careful
not to get burnt when handling it.
3. The developing unit is strongly magnetized. Be
careful not to bring a watch and instrument near
to the unit.
4. Be careful not to damage the drum with a tool.
5. Be careful not to touch IC directly with bare
hands.
2. ADJUSTMENTS WHEN
REPLACING PARTS
Adjustments and setting are required when there
occurs a claim for poor image quality. However,
these adjustments (including checking) and setting
are also required when a part is replaced with a new
one.
[How to use the tables]
Each item represents the following:
1. Mode
Shows which mode is used for adjustments.
"25": 25 mode
"36": 36 mode
"47": 47 mode
2. A circle " " in the table
,
................. :
(Empty circle)
1-1
Shows that the order of
priority has been speci-
fied
for
adjustments
(including checking) and
setting.
:
Shows that adjustments
(including checking) and
setting can be done
independently.
1
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