Xerox WorkCentre 5020 Service Documentation

July, 2007
2-32
WorkCentre 5020
U8-1, U9-0
Initial Issue
Status Indicator RAPS
U8-1 Billing Counter Defect
BSD-Reference: CH3.2 (Figure 2)
Explanation
• An illegal Billing Counter value was detected.
• Or, the AIOC PWB failed to read the Billing Counter.
Procedure
TBD
U9-0 HVPS Fail
BSD-Reference: CH9.1 (Figure 1)
Explanation
A 500 ms cycle of HVPS#ERR=High was detected twice in a row.
Procedure
Close the Left Hand Cover and the Front Cover. Make sure that the Drum Cartridge and the
Transfer Corotron are properly seated. Measure the voltages between P406-2 ( P/J406) (+)/
P406-4(+)/P406-5(+) on the AIOC PWB and ground (-).
The voltages are approximately
+5VDC.
YN
Replace the AIOC PWB (PL 8.1) (REP 8.1.1) and the HVPS (PL 8.2) (REP 8.2.1) in that
order.
Execute diagnostics [09-04 HVPS ON (Low Voltage)]. (How to Enter the Diagnostic Mode)
The voltages at P406-2 ( P/J406) (+)/P406-4 (+)/P406-5 (+) become 0.
YN
Replace the AIOC PWB (PL 8.1) (REP 8.1.1).
Replace the HVPS (PL 8.2) (REP 8.2.1). The problem is solved.
YN
Measure the voltage between P406-1 ( P/J406) (+) on the AIOC PWB and ground (-).
The voltage is approximately +5VDC.
YN
Check between J520-1 ( P/J520) and J406-1 ( P/J406) on the HVPS PWB for a
short circuit.
If there is no short, replace the HVPS (PL 8.2) (REP 8.2.1).
Replace the AIOC PWB (PL 8.1) (REP 8.1.1).
Completed

Xerox WorkCentre 5020 Specifications

General

Print Technology	Laser
Print Speed	Up to 20 ppm
Print Resolution	Up to 600 x 600 dpi
Max Paper Size	A3
Standard Paper Capacity	250 sheets
Bypass Tray Capacity	100 sheets
Duplex Printing	Manual
Copy Speed	Up to 20 cpm
First Page Out Time (Copying)	Less than 10 seconds
Scan Resolution	Up to 600 x 600 dpi
Operating System Compatibility	Windows, Mac OS
Automatic Document Feeder	50 sheets
Connectivity	USB 2.0
Functions	Print, Copy
Reduction / Enlargement	25% - 400%
Scan Destinations	USB, Email
Fax Transmission Speed	33.6 kbps
First Page Out Time (Printing)	Less than 8 seconds