May 2013
2-267
Xerox® WorkCentre® 5790 Family
09-365
Status Indicator RAPs
09-365 Relative Humidity Sensor Failure RAP
09-365 Average humidity reading is out of limits.
Also use this RAP if the relative humidity sensor is suspected of working incorrectly. A faulty
relative humidity sensor can cause image quality problems.
Initial Actions
WARNING
Ensure that the electricity to the machine is switched off while performing tasks that do
not need electricity. Refer to
GP 14
. Disconnect the power cord. Electricity can cause
death or injury. Moving parts can cause injury.
Switch off the machine, then switch on the machine,
GP 14
.
Procedure
Enter
dC330
code 09-365, relative humidity sensor, Q09-365. Press start. Observe the dis-
played state of Q09-365.
Figure 1
. Open the bypass tray, gently blow on the relative humidity
sensor PWB. Observe again the displayed state of Q09-365. The displayed state has
changed.
Y
N
Go to
Flag 1
. Check for +5V at
P/J7
pin 3 on the
IOT PWB
. +5V is present.
Y
N
Go to:
•
01E
+5V Distribution RAP.
•
01B
0V Distribution RAP.
Go to
Flag 1
. Check for +5V at
P/J46
pin 1. +5V is present.
Y
N
Check the wiring between
P/J7
on the IOT PWB and
P/J46
,
GP 7
. Repair wiring as
necessary,
REP 1.2
.
Install a new relative humidity sensor / ambient temperature sensor, (35 ppm)
PL 9.22
Item 4
, (40-90 ppm)
PL 9.20 Item 4
.
If the fault continues, perform
OF7
IOT PWB Diagnostics RAP before a new IOT PWB is
installed,
PL 1.10 Item 2
.
If possible, check the relative humidity of the external environment using a hygrometer. Com-
pare with a reading from the sensor Q09-365. Refer to the NOTE above
Table 1
. If a hygrome-
ter is not available refer to
Table 1
for the approximate expected humidity value. Compare the
expected values with Q09-365. If the value of Q09-365 is very different from the expected
reading.
Install a new relative humidity sensor / ambient temperature sensor, (35 ppm)
PL 9.22 Item 4
,
(40-90 ppm)
PL 9.20 Item 4
.
If the fault continues, perform
OF7
IOT PWB Diagnostics RAP before a new IOT PWB is
installed,
PL 1.10 Item 2
.
If the fault is intermittent, perform the steps that follow:
•
Check the wiring,
GP 7
. Repair if necessary,
REP 1.2
.
•
Make sure that the P/Js are correctly and securely connected.
NOTE: The actual value is not critical. If the reading from Q09-365 is approximately within the
range indicated in column 4,
Table 1
, the sensor is good.
Figure 1 Component location
Table 1 Relative humidity values
External
environment
Average relative
humidity
Cold machine relative
humidity
Warm machine relative
humidity
Wet
80%
80%
40% to 50%
Ambient
50%
50%
15% to 30%
Dry
10%
10%
1% to 7%
Relative humidity
sensor Q09-365 /
ambient temperature
sensor Q09-375
P/J46
Summary of Contents for WorkCentre 5790 Series
Page 1: ...Xerox WorkCentre 5790 Family Service Manual 708P90298 May 2013 ...
Page 4: ...May 2013 ii Xerox WorkCentre 5790 Family Introduction ...
Page 20: ...May 2013 xviii Xerox WorkCentre 5790 Family Translation of Warnings Introduction ...
Page 22: ...May 2013 1 2 Xerox WorkCentre 5790 Family Service Call Procedures ...
Page 32: ...May 2013 1 12 Xerox WorkCentre 5790 Family SCP 7 Service Call Procedures ...
Page 53: ...May 2013 2 21 Xerox WorkCentre 5790 Family 01B Status Indicator RAPs Figure 1 3 3V Return ...
Page 54: ...May 2013 2 22 Xerox WorkCentre 5790 Family 01B Status Indicator RAPs Figure 2 3 3V Return ...
Page 56: ...May 2013 2 24 Xerox WorkCentre 5790 Family 01B Status Indicator RAPs Figure 3 5V Return ...
Page 57: ...May 2013 2 25 Xerox WorkCentre 5790 Family 01B Status Indicator RAPs Figure 4 5V Return ...
Page 59: ...May 2013 2 27 Xerox WorkCentre 5790 Family 01B Status Indicator RAPs Figure 5 12V Return ...
Page 61: ...May 2013 2 29 Xerox WorkCentre 5790 Family 01B Status Indicator RAPs Figure 6 24V Return ...
Page 62: ...May 2013 2 30 Xerox WorkCentre 5790 Family 01B Status Indicator RAPs Figure 7 24V Return ...
Page 63: ...May 2013 2 31 Xerox WorkCentre 5790 Family 01B Status Indicator RAPs Figure 8 24V Return ...
Page 95: ...May 2013 2 63 Xerox WorkCentre 5790 Family 01K Status Indicator RAPs Figure 2 Circuit diagram ...
Page 96: ...May 2013 2 64 Xerox WorkCentre 5790 Family 01K Status Indicator RAPs ...
Page 178: ...May 2013 2 146 Xerox WorkCentre 5790 Family 06 350 Status Indicator RAPs ...
Page 592: ...May 2013 2 560 Xerox WorkCentre 5790 Family 16B 16C Status Indicator RAPs ...
Page 596: ...May 2013 2 564 Xerox WorkCentre 5790 Family 19 409 Status Indicator RAPs ...
Page 698: ...May 2013 3 2 Xerox WorkCentre 5790 Family Image Quality ...
Page 736: ...May 2013 3 40 Xerox WorkCentre 5790 Family IQS 8 Image Quality ...
Page 742: ...May 2013 4 6 Xerox WorkCentre 5790 Family Repairs Adjustments ...
Page 772: ...May 2013 4 34 Xerox WorkCentre 5790 Family REP 3 4 Repairs Adjustments ...
Page 938: ...May 2013 4 200 Xerox WorkCentre 5790 Family REP 9 10 Repairs Adjustments ...
Page 994: ...May 2013 4 256 Xerox WorkCentre 5790 Family REP 11 17 110 Repairs Adjustments ...
Page 1014: ...May 2013 4 276 Xerox WorkCentre 5790 Family REP 11 15 120 Repairs Adjustments ...
Page 1166: ...May 2013 4 428 Xerox WorkCentre 5790 Family REP 14 20 Repairs Adjustments ...
Page 1168: ...May 2013 4 430 Xerox WorkCentre 5790 Family ADJ 3 1 ADJ 3 2 Repairs Adjustments ...
Page 1174: ...May 2013 4 436 Xerox WorkCentre 5790 Family ADJ 4 1 Repairs Adjustments ...
Page 1242: ...May 2013 4 504 Xerox WorkCentre 5790 Family ADJ 14 1 ADJ 14 2 Repairs Adjustments ...
Page 1386: ...May 2013 6 2 Xerox WorkCentre 5790 Family General Procedures Information ...
Page 1524: ...May 2013 6 140 Xerox WorkCentre 5790 Family Fax Tags General Procedures Information ...
Page 1526: ...May 2013 7 2 Xerox WorkCentre 5790 Family Wiring Data ...
Page 1554: ...May 2013 7 30 Xerox WorkCentre 5790 Family PJ Locations Wiring Data ...
Page 1604: ...May 2013 8 2 Xerox WorkCentre 5790 Family Accessories ...
Page 1606: ...May 2013 8 4 Xerox WorkCentre 5790 Family ACC 1 Accessories ...
Page 1610: ...XEROX EUROPE ...