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HP M750 series

HP M750 series
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Table 3-51 Causes and solutions for pickup delay jams Tray 2
Cause Solution
Poor contact of the pickup motor drive
connector.
Reconnect the connector J91on the DC controller PCA .
The pickup motor is defective. Execute the Tray 2 pickup motor test in the component test (see Component tests).
If the motor is defective, replace the paper pickup assembly.
The pickup roller is worn or deformed. Replace the pickup roller.
The tray 2 separation roller is worn or
deformed.
Replace the separation roller.
Poor contact of the TOP sensor connector. Reconnect the connector J122 on the DC controller PCA.
The TOP sensor (PS5) is defective. Run the manual sensor test to verify that the TOP sensor is functioning properly.
See TOP (top-of-page) sensor (PS5) for information. If it is not, replace the
registration sensor assembly.
Poor contact of the Tray 2 pickup solenoid
drive connector.
Reconnect the connector J1003 on the DC controller PCA.
The Tray 2 pickup solenoid is defective. Run the Tray 2 pickup solenoid test in the component test See Component test
(special-mode test) to verify that the Tray 2 pickup solenoid is functioning properly.
If it is not, replace the paper pickup assembly.
Table 3-52 Causes and solutions for pickup stationary jams
Cause Solution
Multiple feed of media Replace any worn or deformed parts (tray separation pad, tray feed roller, MP tray
pickup roller or MP tray separation pad).
Check the separation pad and MP tray separation pad to see if they are firmly
seated and coupled with the torque limiter.
Replace the separation pad and feed roller for the associated tray.
If the MP tray pickup roller if defective, replace the roller. If the MP tray separation
pad is defective, replace the separation pad assembly.
The secondary transfer roller is not set
correctly.
Place the secondary-transfer-roller unit in the correct position.
The secondary-transfer roller is worn or
deformed.
Replace the secondary-transfer-roller assembly.
Poor contact of the drum drive connector Reconnect the connectors of the ITB motor (J517) and the DC controller PCA (J81).
The drum motor is defective. Execute the drum motor driving test in the component test (see Component tests).
If the motor is defective, replace the motor.
The ITB does not rotate smoothly. Replace the ITB.
The TOP sensor lever is incorrectly positioned or
damaged
Check the sensor lever to make sure it is correctly positioned . If it is damaged,
replace the registration sensor assembly.
Poor contact of the TOP sensor connector Reconnect the connector J122 on the DC controller PCA.
The TOP sensor is defective. Run the manual sensor test to verify that the TOP sensor (PS5) is functioning
properly. See TOP (top-of-page) sensor (PS5) for information. If it is not, replace
the registration sensor assembly.
506 Chapter 3 Solve problems ENWW

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