KIP 7170K, Руководство по обслуживанию

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K134sm7e2 7-22
7. 2. 2. 2 Halftone and solid black are too light
Check the following matters with the Pattern Print, pattern: #01_00 and pattern: #03_00.
If necessary use other Test Patterns.
Cause Checking
order
Checking Result Treatment
1 Try to readjust each image creation
component according to [7.2.1 Basic
Image Adjustment].
Is the problem fixed?
Yes OK
2 Turn off the machine in the middle of
printing, and then check the toner
image on the Drum.
Is the toner image looks normal?
Yes Go on to the step 3.
No Go on to the step 7.
Transfer Corona 3 Is the Transfer/Separation Corona
installed to the machine correctly?
No Install it correctly.
Is the high voltage of Transfer Corona
leaking?
Yes Clean the Transfer Corona.
Paper 4 Can you fix the problem if you use a
newly unpacked paper?
Yes 1. If the paper was
humidified, instruct the
customer of the way store
the paper.
2. If the paper was not the
specified one, explain the
customer that some
image problem may
occur in that case.
Lead Wire 5 Is the resistance of Lead Wire about 10
kilo ohm, which connects the HV Power
Supply and the Transfer Corona?
No Replace the Lead Wire.
Input voltage to the
Transfer Corona
6 Is a correct voltage supplied from the
HV Power Supply to the Transfer
Corona?
No Readjust the input voltage
making reference to
[4. 3. 3 Check &
Adjustment of Analog
Voltage to the Transfer
Corona].
Or replace the HV Power
Supply PCB.
Dirt of the LED
Head
7 Is the LED Head dirty? Yes Clean it.
Developer Unit 8 Is the Developer Roller evenly covered
with the toner?
No Check the whole Developer
Unit to find the cause.
9 Is the Developer Unit firmly pressed
toward the Drum? (Do Counter Rollers
at both sides of the Developer Roller
touch the Drum Unit?)
No Remove the Developer Unit,
and then install it to the
machine correctly.
Check the Developer Press
Unit.
Installation of
Developer Unit
10 Is the driving gear on the left of the
Developer Unit surely fitted to the
driving mechanism on machine side?
No Check whether or not the
Cam of Developer Press
Unit surely presses the
Developer Unit.
Check the concerning gears.
Toner Sensor 11 Is there enough toner in the Developer
Unit?
No 1. Check the wire or the
connector connected to
the Toner Sensor.
2. Check the Toner Sensor.
Yes Replace the
Photoconductive Drum.