Xerox Phaser 7760 Service Manual page 42

001-301 Left Lower Cover (Door B) Open
Left Lower Cover (Door B) is open
Procedure
Enter Service Diagnostics Menu: Printer Menu > Troubleshooting > Service Tools > Printer
Status Page > hold the Up and Down buttons simultaneously > Run Service Diagnostics >
OK. Open the Left Lower Cover. Actuate the Left Lower Cover Interlock Switch
screwdriver. The display changes.
Y N
Go to Section 6, Transmissive Sensor Procedure
Switch (PL 2.3).
Check the Sensor, Actuator, and Left Lower Cover installation
Figure 1 001-301 LH Lower Cover Interlock Sensor
Status Indicator RAP's
001-301 Left Lower Cover (Door B) Open, 001-302
(PL 2.3) with a
and repair the LH Lower Cover Interlock
(PL 2.3).
January 2010
001-302 Front Cover Door Open
Front Cover Door is open.
Initial Actions
Check the operation of the Actuator and the switch for Front Cover and Right Side Cover.
Procedure
Open the Front Cover. Cheat the Front Interlock Switch
Y N
+24 VDC is measured between the I/F PWB P/J531-1 (+) and GND (-) (Section 7, I/F
PWB, MAIN Motor, LVPS Plug/Jack Locations -
Y N
+24 VDC is measured between the Front Interlock Switch P/J171-B1 (+) and
GND (-) (Section 7, Xerographic, Plug/Jack Locations -
Y N
+24 VDC is measured between the Front Interlock Switch P/J171-A1 (+)
and GND (-) (refer to Section 7, Xerographic - Plug/Jack Locations -
1).
Y N
Repair the open circuit between the Left Cover Interlock Switch P/J172-B1
(Section 7, Exit Transport Assembly - Plug/Jack Locations -
the Front Interlock Switch P/J171-A1.
Replace the Front Interlock Switch
+24 VDC is measured between the RH Cover Interlock Switch P/J173-B1 (+)
and GND (-) (Section 7, Outlet Panel Assembly - Plug/Jack Locations -
13).
Y N
+24 VDC is measured between the RH Cover Interlock Switch P/J173-A1
(+) and GND (-).
Y N
Repair the open circuit between the Front Interlock Switch P/J171-B1 and
the RH Cover Interlock Switch P/J173-A1.
Replace the RH Cover Interlock Switch
Check the wire for an open circuit between the RH Cover Interlock Switch P/J173-B1
and P/J531-1 on the I/F PWB
Replace the I/F PWB (PL 9.1).
If the problem continues, replace the Engine Control Board (MCU PWB)
Check installation of the Cover/Actuator
2-6
(PL 10.1). 01-510 is cleared.
Figure 16).
Figure 1).
(PL 10.1).
(PL 10.1).
(Figure 12 - HVPS, +24V LVPS - Plug/Jack Locations)
(PL
(PL 10.1).
Phaser 7760 Color Laser Printer
Figure
Figure 7) and
Figure
13.1).
Revised