K Document Size Sensor Failure Rap (45-87 Ppm) - Xerox WorkCentre 5687 Series Service Manual

05K Document Size Sensor Failure RAP (45-87 ppm)

Initial Actions
• Make sure that the correct RAP is used. To identify the correct RAP to use, go to the 05B
DADH Document Present Sensor Failure Entry RAP.
• Make sure that a bright light is not above the DADH. If necessary, adjust the position of
the machine.
• Remove all documents from the DADH and input tray.
• Make sure that the sensors and the area around the sensors are clean.
Procedure
WARNING
Switch off the electricity to the machine, GP 14. Disconnect the power cord from the
customer supply while performing tasks that do not need electricity. Electricity can
cause death or injury. Moving parts can cause injury.
NOTE: Perform the DADH Width Guide Adjustment, ADJ 5.3 if the following items are
installed:
• A new DADH input tray assembly.
• A DADH input tray component.
Enter dC330 code 05-315 to check the DADH length sensor 1, Q05-315, Figure 1. Activate
Q05-315. The display changes.
Y N
Go to Flag 1. Check Q05-315.
References:
• GP 11 How to Check a Sensor.
• P/J190, DADH PWB.
• 01D +3.3 Distribution RAP.
• 01B 0V Distribution RAP, refer to the 3.3V return.
Install new components as necessary:
• DADH length sensor 1, PL 5.35 Item 8.
• DADH PWB, PL 5.10 Item 5.
Enter dC330 code 05-320 to check the DADH length sensor 2, Q05-320. Activate Q05-320.
The display changes.
Y N
Go to Flag 2. Check Q05-320.
References:
• GP 11 How to Check a Sensor.
• P/J190, DADH PWB.
• 01D +3.3V Distribution RAP.
• 01B 0V Distribution RAP, refer to the 3.3V return.
Install new components as necessary:
• DADH length sensor 2, PL 5.35 Item 8.
• DADH PWB, PL 5.10 Item 5.
A
Status Indicator RAPs
05K
A
Open the DADH top cover. Enter dC330 code 05-330 to check the DADH feed sensor, Q05-
330. Activate Q05-330. The display changes.
Y N
Go to Flag 3. Check Q05-330.
References:
• GP 11 How to Check a Sensor.
• P/J184, DADH PWB.
• 01D +3.3V Distribution RAP.
• 01B 0V Distribution RAP, refer to the 3.3V return.
Install new components as necessary:
• DADH feed sensor, PL 5.15 Item 2.
• DADH PWB, PL 5.10 Item 5.
Enter dC330 code 05-340 to check the DADH registration sensor, Q05-340. Activate Q05-340.
The display changes.
Y N
Go to Flag 4. Check Q05-340.
References:
• GP 11 How to Check a Sensor.
• P/J184, DADH PWB.
• 01D +3.3V Distribution RAP.
• 01B 0V Distribution RAP, refer to the 3.3V return.
Install new components as necessary:
• DADH registration sensor, PL 5.25 Item 1.
• DADH PWB, PL 5.10 Item 5.
Completely open the DADH width guides. Go to Flag 5. Measure the voltage at P/J190 pin 8.
Completely close the DADH width guides. The voltage changes from 3.3V to 0V.
Y N
Remove the DADH input tray assembly, PL 5.35 Item 1. Make sure the arm of the DADH
width guide sensor is installed correctly, Figure 2. Check the mechanical operation of the
width guides. Install new components as necessary:
• DADH width sensor, PL 5.35 Item 11.
• DADH input tray assembly, PL 5.35 Item 1.
Perform the steps that follow:
• Make sure that the chain 5 NVM parameters for the detection of the size of paper are cor-
rect. Refer to dC131.
• DADH Width Guide Adjustment, ADJ 5.3.
Install new components as necessary:
• DADH PWB, PL 5.10 Item 5.
• DADH input tray assembly, PL 5.35 Item 1.
August 2007
2-138
WorkCentre 5687 Family