Xerox WorkCentre 5687 Series, Service Manual, Page: 423 / 2320

August 2007
2-231
WorkCentre 5687 Family
09-060
Status Indicator RAPs
09-060 HVPS Fault RAP
09-060 The HVPS fault sensor has detected a high voltage fault.
The HVPS fault will occur when:
• The 24 volt supply is momentarily overloaded.
• The charge grid or developer bias or transfer values drop.
• A increase in DT (AC) output current.
The HVPS fault will deactivate within 100 milliseconds after the removal of the fault.
Initial Actions
• Switch off the machine, then switch on the machine, GP 14.
• Clean the charge scorotron, ADJ 9.1.
• Clean the transfer / detack corotron and check the corotron wire, ADJ 9.1.
• Reseat the high voltage connections on the HVPS, (45-87 ppm) Figure 1, (32-38 ppm)
Figure 2.
• Check the registration transport bias contact, PL 8.15 Item 23, Figure 3.
• Check the bias connection, Figure 3.
• Reseat the developer bias connection, Figure 4.
• If the machine is above 750 metres above sea level, check the transfer / detack assembly
for arcing. If necessary go to dC131 NVM Read / Write location 09-098 and select the
appropriate altitude.
• Check for any cause of an overload to the 24V supply. For example, very thick multi-feeds
causing the main drive motor to stall, or a possible short circuit.
Procedure
WARNING
Switch off the electricity to the machine, GP 14. Disconnect the power cord from the
customer supply while performing tasks that do not need electricity. Electricity can
cause death or injury. Moving parts can cause injury.
If you were directed from IQ8 Defect RAP, continue below. If the following checks do not
resolve the image quality problem, return to IQ3 Xerographic RAP.
NOTE: The following are the only values that can be measured from the HVPS.
• Charge scorotron grid, -425V +/- 21V
• The two terminals identified as G are the same output.
• Registration chute bias, -490V +/- 25V
• The two terminals identified as CB are the same output.
• Developer bias, -370V +20V / -50V
NOTE: The charge, transfer and detack corotron have 47k Ohms arc suppression resistors
within their harnesses.
Check that the F1 surface mounted fuse on the IOT PWB is good. Refer to OF7 IOT PWB
Diagnostics RAP, for the location of the F1 surface mounted fuse. The surface mounted
fuse is good.
Y N
Perform the procedures that follow:
• 01G +24V Distribution RAP and refer to the 01G Fused Distribution Check.
• 01H Short Circuit and Overload RAP.
Enter dC330. Select component code 09-060 HVPS fault and press save. Press start. A high
signal indicates a fault or the front door interlock open.
Add Component code 09-061 charge scorotron. Press start. Time out after 3 seconds. The
display for code 09-060 is Low.
Y
N
Go to the Flag 1. Check the charge scorotron harness for open circuit or short circuit to
ground, GP 7. The scorotron harness and connectors are good.
Y
N
Install a new charge scorotron harness, (32-55 ppm) PL 4.17 Item 18, (65-87 ppm)
PL 4.12 Item 20.
Install a new xerographic module, (32-38 ppm) PL 9.22 Item 2, (45-87 ppm) PL 9.20 Item
2.
If the fault continues, install a new HVPS, PL 1.10 Item 5.
Add component code 09-062 charge grid. Press start. Time out after 3 seconds. The display
for code 09-060 is Low.
Y
N
Go to the Flag 1. Check the charge grid harness for open circuit or short circuit to ground,
GP 7. The grid harness and connectors are good.
Y
N
Install a new charge grid harness, (32-55 ppm) PL 4.17 Item 19, (65-87 ppm) PL
4.12 Item 21.
Install a new xerographic module, (32-38 ppm) PL 9.22 Item 2, (45-87 ppm) PL 9.20 Item
2.
If the fault continues, install a new HVPS, PL 1.10 Item 5.
Add component code 09-063 transfer corotron. Press start. Time out after 3 seconds. The
display for code 09-060 is Low.
Y
N
Go to the Flag 2. Check the transfer corotron harness for short circuit to ground, GP 7.
The transfer corotron harness and connectors are good.
Y
N
Install a new transfer / detack harness, (32-38 ppm) PL 9.22 Item 9, (45-87 ppm) PL
9.20 Item 9.
Install a new transfer / detack corotron, (32-38 ppm) PL 9.22 Item 8, (45-87 ppm) PL 9.20
Item 8.
If the fault continues, install a new HVPS PL 1.10 Item 5.
Add component code 09-064 detack corotron. Press start. Time out after 3 seconds. The dis-
play for code 09-060 is low.
Y
N
Go to Flag 2. Check the detack corotron harness for short circuit to ground, GP 7. The
detack corotron harness and connectors are good.
A