Xerox DocuColor 2240, Service Manual

Page: 1217 / 1489

09/03
6-126
DC 3535/2240/1632, WC M24
GP 4, GP 5
Initial issue General Procedures and Information
• wires chafing against components of the machine, especially against moving com-
ponents
• misaligned, misadjusted, or incorrectly installed components
• slow or slipping clutches; slow or binding solenoids
• damaged components
• excessive heat, or symptoms of excessive heat, such as the discoloration of a com-
ponent
• loose cables or wires
9. Perform the adjustments for the components that are not in the RAP, but are associated
with the function that is failing. Refer to the BSDs. Check to ensure that the adjustment
CAN BE MADE and that there is an adequate range of adjustment, and that it can be set
to or near the nominal value. Any abnormality that is observed may be an indication of the
cause of the problem. For example, a component can be adjusted to the nominal value,
but it is at the limit of the adjustment range. This is not normal and may be an indication of
the cause of the problem
10. Operate all of the components that are not in the RAP, but are associated with the func-
tion that is failing with dC330 Component Control. Refer to the BSDs. Observe the com-
ponents for any symptoms of abnormal operation, such as a hesitation, or an unusual
sound.
11. Replace any components or consumables that are known to be a frequent cause of the
problem. When doing this, consider the cost and time required. If the suspected item is
inexpensive, can be installed quickly, and has a high probability of resolving the problem,
then it is reasonable to replace it.
12. Leave an accurate and detailed record of your actions in the service log. Describe what
you have observed, what actions you took, and the recommended next steps.
GP 5 Fax Diagnostics
Purpose
This procedure describes the process for running fax diagnostic tests found in UI Diagnostic
Mode .
Procedure
To Access Fax Diagnostics:
1. Enter UI Diagnostic Mode .
2. Press the Access button on the Control Panel
3. On the display, select System Settings , then Common Settings , then Diagnostics .
4. Select Fax Diagnostics .
There are two tests for Fax Diagnostics; the Signal Sending Test and the Relay Test
Signal Sending Test
This test checks the ability of the Fax system to generate and transmit a specific signal.
To run this test:
1. From the Fax Diagnostics screen, select Signal Sending Test .
2. Select the line number you wish to test (standard line is 1 . Lines 3 and 5 are for optional
additional lines, 0 , 2 , and 4 are for FX use only).
3. Enter the Signal No . you wish to test and select Send Signals . Refer to Table 1 for the
list of signal numbers.
4. An audio tone or tones corresponding to the selected signal should be heard. This verifies
communication from the UI to the ESS PWB, from the ESS to the Fax I/F PWB, from the
Fax I/F to the Fax PWB, and demonstrates the ability of the system to generate the spe-
cific signal being tested.
If an error occurs, a Fault Code will be displayed.
5. To stop the test, select Cancel Sending .
Relay On/Off Test
This test turns on/off various relays that are used in the NCU.
To run this test:
1. From the Fax Diagnostics screen, select Relay On/Off .
2. Select the line No. and select Relay On .
If an error occurs, a Fault Code will be displayed. Listen for the Relay to pick up the line.
3. To stop the test, select Relay Off .
Table 1 Fax Diagnostic signal numbers
Signal No. Output Description
011 Tonal Signal Output 462Hz
012 Tonal Signal Output 1080Hz
013 Tonal Signal Output 1100Hz
014 Tonal Signal Output 1300Hz
015 Tonal Signal Output 1650Hz