Xerox Phaser 7760 Service Manual page 101

Figure 1 007-105 Tray 2 Feed Out Sensor
Figure 2 007-105 Tray 2 Feed/Lift Motor
Revised
Phaser 7760 Color Laser Printer
007-110 Tray 3 Misfeed
The Takeaway Sensor does not detect paper after feeding from Tray 3.
Initial Actions
• Remove Tray 2 (REP 7.8). Ensure P/J840 is securely connected (below the left paper tray
rail, near the rear side of the machine) (refer to section 7, 3T Module (Tray 3, 4, 5 feeder)
Plug/Jack Locations - Figure
• Check condition and specification of paper in Tray 3.
• Check for intermittent misfeeds ensure paper type selection is correct (open tray, select
Change Description).
• Check the paper path for obstructions.
• Check for wear and clean the Tray 3 Feeder Roll, Takeaway Roll and the Pinch Roll.
Procedure
Open the Left Cover and cheat the Left Cover Interlock Switch
3TM). Enter Service Diagnostics
Printer Status Page > hold the Up and Down buttons simultaneously > Run Service Diag-
nostics > OK. Block and unblock the Takeaway Sensor
The display changes.
Y N
Check the circuit of the Takeaway Sensor
Sensor Procedure for troubleshooting procedure.
Perform the Paper Feed Motors test. Both Takeaway Rolls
3TM) rotate.
Y N
Takeaway Motor 1 energizes.
Y N
+24 VDC is measured between P/J542-10 and GND on the Tray Module PWB
(refer to section 7, TT Module (rear) Plug/Jack Locations -
Module (rear) Plug/Jack Locations -
Y N
+24 VDC is measured at P/J668-3 on the Tray Module PWB (refer to sec-
tion 7, TT Module (rear) Plug/Jack Locations -
Y N
Refer to the +24 VDC Wirenets
Module PWB.
Replace the Tray Module PWB
+24 VDC is measured at each of the following pins on P/J542: Pins 1, 2, 5, and
6.
Y N
Refer to Figure
Motor 1 for an open circuit. If the wires are good, replace the Takeaway Motor 1
(PL 15.9)
A B C
January 2010
2-65
21).
(PL 16.13
Menu: Printer Menu > Troubleshooting > Service Tools >
(PL 16.6- TTM or
(Figure 1). Refer to Section 6,
(PL 16.6
Figure 26).
Figure
(Figure 4). Check the +24 VDC to the Tray
(PL 16.15 - TTM or PL 15.9
3. Check the wires from the Tray Module PWB to the Takeaway
Status Indicator RAP's
007-105, 007-110
- TTM or PL 15.10 -
PL 15.10 - 3TM).
Transmissive
- TTM or PL 15.10 -
Figure 25, or 3T
25).
- 3TM).