Rap 39 Turn Roll Clutch Assembly - Xerox DocuPrint N2025 Service Manual

RAP 39 Turn Roll Clutch Assembly

Procedure
Enter Diagnostics and select Component Test. Scroll to Turn Roll Clutch Assembly and press
Enter. You can hear the Turn Roll Clutch Assembly energize.
Y N
Switch the printer power off. Remove the Left Side Cover (REP 1.1) and the Print Engine
Controller PWB Cover (REP 8.5). Disconnect P/J12 on the Print Engine Controller PWB.
Measure the resistance between pins 10 and 11 on the disconnected plug. The
tance is approximately 170 to 185 ohms.
Y N
Remove the MBF Assembly. On the MBF assembly measure the resistance between
P121 pin 7 and pin 8. The resistance is approximately 170 to 185 ohms.
Y N
Remove the MBF Gear Cover. Disconnect the Turn Roll Clutch Assembly inline
connector (P/J124). Measure the resistance of the clutch. The resistance is
approximately 170 to 185 ohms.
Y N
Replace the Turn Roll Clutch Assembly (REP 2.3).
Repair or replace the MBF Combo Harness (PL 4.2).
Repair or replace the MBF Harness (P/J12 to P/J121) (PL 9.1).
Switch the printer power on. Measure the voltage between P/J12 pin 10 on the Print
Engine Controller PWB and frame ground. The voltage is +24VDC.
Y N
Measure the voltage between P/J16 pin 9 and frame ground. The
+24VDC.
Y N
Replace the LVPS (REP 8.6).
Replace the Print Engine Controller PWB (REP 8.5).
Switch the printer power off. Reconnect P/J12. Enter Diagnostics and select Component
Test. Scroll to Turn Roll Clutch Assembly. Measure the voltage between P/J12 pin 11 and
frame ground. Press the Enter key. The voltage drops from +24VDC to 0.0VDC.
Y N
Replace the Print Engine Controller PWB (REP 8.5).
Switch the printer power off. Open the Top Cover and remove the Print Cartridge. With the
Top Cover open, cheat the Top Cover Interlock. Enter Diagnostics and select Component
Test. Scroll to Main Motor and press Enter. Scroll to Turn Roll Clutch Assembly and press
Enter. The Turn Rolls rotate smoothly without stalling or jerking.
Y N
Replace the Registration Clutch (REP 4.3) or Turn Roll Assembly (REP 2.4) as nec-
essary.
Problem Solved.
A
Status Indicator Repair Analysis Procedures
RAP 39
A
Switch the printer power off. Open the Top Cover and remove the Print Cartridge. With the Top
Cover open, cheat the Top Cover Interlock. Enter Diagnostics and select Component Test.
Scroll to Main Motor and press Enter. Scroll to Turn Roll Clutch Assembly and press Enter.
The Turn Rolls rotate smoothly without stalling or jerking.
Y N
Replace the Turn Roll Clutch Assembly (REP 2.3) or Turn Roll Assembly (REP 2.4) as
necessary.
resis- Problem Solved.
voltage is
02/2000
2-40
Initial Issue
DocuPrint N2025/N2825