Rap 40 Tray 1 Feed Solenoid; Rap 41 Mbf Feed Solenoid; Status Indicator Repair Analysis Procedures - Xerox DocuPrint N2025 Service Manual

RAP 40 Tray 1 Feed Solenoid

Procedure
Enter Diagnostics and select Component Test. Scroll to Tray 1 Feed Sol and press Enter. You
can hear the solenoid 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 12 and 13 on the disconnected plug. The
tance is approximately 90 ohms.
Y N
Remove the MBF Assembly. On the MBF assembly, measure the resistance
between P121 pin 9 and pin 10. The resistance is approximately 90 ohms.
Y N
Remove the MBF Gear Cover. Disconnect the Tray 1 Feed Solenoid inline con-
nector (P/J123). Measure the resistance of the solenoid. The
approximately 90 ohms.
Y N
Replace the Tray 1 Feed Solenoid (REP 2.9).
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 12 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 Tray 1 Feed Sol. Measure the voltage between P/J12 pin 13 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).
Check for mechanical binding of the solenoid or a defective spring. If the problem persists,
replace the Tray 1 Feed Solenoid (REP 2.9).
Scroll to Main Motor and press Enter. The Tray 1 Feed Rolls will rotate one revolution and feed
a sheet of paper to the Tray 1 Turn Rolls. Open and close the Top Cover to stop the Main Motor.
Open Tray 1 and remove the sheet of paper. Scroll to Main Motor and press Enter. Scroll to
Turn Roll Clutch and press Enter. Scroll to Tray 1 Feed Sol and press Enter. A sheet of paper
is fed from Tray 1 to the Registration Rolls.
Y N
Replace the Tray 1 Feed Solenoid (REP 2.9).
Problem solved.
Initial Issue
DocuPrint N2025/N2825

RAP 41 MBF Feed Solenoid

Procedure
Enter Diagnostics and select Component Test. Scroll to MBF Feed Sol and press Enter. You
can hear the solenoid 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.
resis- Measure the resistance between pins 14 and 15 on the disconnected plug. The
tance is approximately 90 ohms.
Y N
Remove the MBF Assembly. On the MBF assembly, measure the resistance
between P121 pin 9 and pin 10. The resistance is approximately 90 ohms.
Y N
Remove the MBF Gear Cover. Disconnect the MBF Feed Solenoid inline con-
resistance is nector (P/J122). Measure the resistance of the solenoid. The
approximately 90 ohms.
Y
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 14 on the Print
Engine Controller PWB and frame ground. The voltage is +24VDC.
Y N
voltage is 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 MBF Feed Sol. Measure the voltage between P/J12 pin 15 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).
Check for mechanical binding of the solenoid or a defective spring. If the problem persists,
replace the MBF Feed Solenoid (REP 2.9).
Open the Top Cover and cheat the Top Cover Interlock. Remove the Print Cartridge. Add paper
to the MBF. Scroll to Main Motor and press Enter. The MBF Feed Rolls will rotate one revolu-
tion and feed a sheet of paper to the Registration Rolls. Open and close the Top Cover to stop
the Main Motor. A sheet of paper is fed from the MBF to the Registration Rolls.
Y N
Replace the MBF Feed Solenoid (REP 2.8).
Problem solved.
02/2000
2-41
N
Replace the MBF Feed Solenoid (REP 2.8).

Status Indicator Repair Analysis Procedures

resis-
resistance is
voltage is
RAP 40, RAP 41