Xerox 5400N - Phaser B/W Laser Printer, Service Quick Reference Manual

Page: 176 / 503

Phaser 5400 Laser Printer Service Guide 147
RAP 56 Tray 1 Feed Solenoid
.
Table 86 Tray 1 Feed Solenoid Troubleshooting Procedure
Step Actions and Questions Yes No
1
PROCEDURE
1. Enter Diagnostics mode.
2. From the Main Menu, select Component Test / Tray 1
Feed Sol / press [4], [0] to stop.
Can you hear the solenoid energize?
Go to
Step 8. Go to
Step 2.
2 “NO” FROM STEP 1 ABOVE
1. Switch printer power OFF.
2. Remove the Left Side Cover [RRP 1.1, page 250 ] and
the Print Engine Controller Board Cover [RRP 8.5,
page 310 ].
3. Disconnect P/J12 on the Print Engine Controller
Board.
4. Measure the resistance between pins 12 and 13 on
the disconnected plug.
Is the resistance approximately 90 ohms?
Go to
Step 5. Go to
Step 3.
3 “NO” FROM STEP 2 ABOVE
1. Remove the MBF Assembly.
2. On the MBF Assembly, measure the resistance
between P121-9 and P121-10.
Is the resistance approximately 90 ohms?
Repair or
replace the
MBF
Harness
[PL 9.1,
page 404 ].
Go to
Step 4.
4 “NO” FROM STEP 3 ABOVE
1. Remove the MBF Gear Cover.
2. Disconnect the Tray 1 Feed Solenoid in-line
connector (P/J123).
3. Measure the resistance of the solenoid.
Is the resistance approximately 90 ohms?
Repair or
replace the
MBF Combo
Harness
[PL 4.2,
page 394 ].
Replace the
Tray 1 Feed
Solenoid
[RRP 2.9,
page 270 ].
5 “YES” FROM STEP 2 ABOVE
1. Switch printer power ON.
2. Measure the voltage between P/J12-12 on the Print
Engine Controller Board and frame ground.
Is the v24 VDC?
Go to
Step 7. Go to
Step 6.
6 “NO” FROM STEP 5 ABOVE
Measure the voltage between P/J16-9 and frame
ground.
Is the v24 VDC?
Replace the
Print Engine
Controller
Board
[RRP 8.5,
page 310 ].
Replace the
LVPS
[RRP 8.6,
page 312 ].