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2.7.8 After Replacing the
Pick Up Motor/Pick Up
Unit
CLC5100 / CLC4000
1) Place three or more A4 or LTR sheets of paper in
the cassette (upper, lower).
2) Select 'FUNC > P UP TMG' in service mode.
3) Execute 'PK ADJ U' three times.
A value near '186' will be indicated under 'DATA
A' and 'PUDT U'.
4) Press 'D SEND U' to write the adjustment data in
RAM.
5) Execute 'PK ADJ L' three times.
A value near '104' will be indicated under 'DATA
L' and 'PUDT L'.
6) Press 'D SEND L' to write the adjustment data in
RAM.
7) Write the value of 'PUDT U/L' on the service label.
8) End service mode.
2.7.9
Checking
Environment
Measurement PCB
CLC5100 / CLC4000
The condition of the environment measurement PCB
and the environment sensor is checked using the
environment measurement checking tool (TKN 0457)
and the sensor for the environment checking sensor
(TKN 0456).
a. Checking the Environment Measurement PCB
1) Turn off the power switch.
2) Remove the multitray covers 1 and 2.
3) Remove the environment sensor from the
environment measurement PCB, and insert the
sensor for the environment measurement checking
sensor (TKN 0457) in its place.
0002-0460
the
0002-0463
4) Turn on the power switch.
5) Set the meter to the 30 VDC range, and check to
make sure that the voltage of J1 1 (+) and J1 2 ( )
on the environment measurement PCB is 24 V
±2.4V. If not, check the DC power supply PCB
(DCP1).
6) Start service mode, and select 'DISPLAY'.
7) Check the temperature and humidity on the
ANALOG screen.
BODY ºC ...... 25±5
BODY % ....... 40±10
8) Check to make sure that the reading is within
specification.
If not, go to step 9).
If the reading is as indicated, go to step 14).
9) Press the Reset key, and turn off the power switch.
10) Disconnect J1 of the environment measurement
PCB.
11) Turn on the power switch; start service mode, and
select 'DISPLAY'.
12) Check the temperature and humidity on the
ANALOG screen.
BODY ºC...... 25±5
BODY %....... 36±10
13) Check to make sure that the reading is as
indicated.
Reference
If the reading is not as indicated, suspect a fault in the
DC controller.
14) Press the Reset key.
15) Turn off the power switch.
16) Connect J1 of the environment measurement
PCB.
17) Remove the environment measurement sensor
from the environment measurement PCB, and
insert the environment sensor.
18) Install all covers.
b. Checking the Environment Sensor
1) Check the environment PCB.
2) Turn on the power switch, and leave it on for 5 min.
3) Start service mode, and select 'DISPLAY'.
4) Check the temperature and humidity on the
Chapter 2
2-29
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