Rap 29 Main Motor Assembly - Xerox DocuPrint N2025 Service Manual

RAP 29 Main Motor Assembly

Procedure
Open the Top Cover and remove the Print Cartridge. Cheat the Top Cover Interlock. Enter
Diagnostics and select the Component Test. Scroll to Main Motor and press Enter. The
Motor rotates.
Y N
Switch the printer power off. Remove the Lower Rear Cover (REP 1.7). Switch the printer
power on. Measure the voltages listed in Table 1 on the LVPS.
Table 1 Main Motor Harness
From To
P/J164 - Pin 1 Frame Ground
P/J164 - Pin 2 Frame Ground
P/J164 - Pin 5 Frame Ground
P/J164 - Pin 6 Frame Ground
P/J164 - Pin 7 Frame Ground
This voltage valid
if printer set for
1200 DPI
All voltages are correct.
Y N
The voltages on pin 1 and pin 2 are correct.
Y N
Replace the LVPS (REP 8.6).
The voltage on pin 6 is correct.
Y N
Replace the Print Engine Controller PWB (REP 8.5).
The voltage on pin 5 is correct.
Y N
Check the voltage on P/J161 pin 11. The voltage is 3.3VDC.
Y N
Replace the LVPS (REP 8.6).
Replace the Print Engine Controller PWB (REP 8.5).
Replace the LVPS (REP 8.6).
With the Top Cover Interlock still cheated. Enter Diagnostics and select the Component
Test. Scroll to Main Motor. Measure the voltage between P/J164 pin 6 and frame ground.
Press the Enter key. The voltage drops from 7.0 VDC to 0 VDC.
Y N
Remove the cheater from the Top Cover Interlock, then reinstall the cheater. With
Main Motor still selected, Measure the voltage on the LVPS between P/J161 pin 8
and frame ground. Press the Enter key. The voltage drops from 7.0 VDC to 0 VDC.
Y N
Replace the Print Engine Controller PWB (REP 8.5).
A B C
Initial Issue
DocuPrint N2025/N2825
A
Main Problem solved.
Voltage
24 VDC
24 VDC
3.2 VDC
7.0 VDC
6.3 VDC
02/2000
2-31
B C
Replace the LVPS (REP 8.6).
Replace the Main Motor Assembly (REP 6.2).
Status Indicator Repair Analysis Procedures
RAP 29