HP (Hewlett-Packard) CC490A All in One Printer User Manual


 
Table 3-20 Causes and solutions for residual media jams
Cause Solution
The sensor detecting a residual media jam is
not working.
One of the four sensors is reporting a residual jam. Test each sensor using the
manual sensor test. See
Manual sensor test (special-mode test) on page 246
for information. If the sensor does not respond, replace the component
indicated:
TOP sensor (SR20): Replace the registration assembly. See
Registration
assembly on page 128.
Fuser delivery sensor (SR5): Replace the sensor. See callout 3 in
Figure
2-114 Remove the delivery assembly (2 of 7) on page 146 for the sensor
location.
Loop sensor 1 or 2 (SR14 and SR15): Replace the fuser. See
Fuser
on page 85.
Duplex re-pickup sensor (SR22): Replace the registration assembly. See
Registration assembly on page 128.
If service was recently performed on the
product, a sensor connector might be
disconnected.
Run the manual sensor tests to verify which sensor detects the media. See
Manual sensor test (special-mode test) on page 246 for information. Reconnect
the corresponding sensor connector:
TOP sensor: Connector (J74) and (J145) on the DC controller PCA
Fuser delivery sensor: Connector (J48) and connector (J127) on the DC
controller PCA
Loop sensor 1 or 2: Connector (J162) on the DC controller PCA
Duplex re-pickup sensor: Intermediate connector (J74) and connector
(J145) on the DC controller PCA.
Table 3-21 Causes and solutions for pickup delay jams 2
Cause Solution
Poor contact of the pickup motor drive
connector.
Reconnect the connector (J37) of the pickup motor and connector (J260) of the
DC controller PCA .
The pickup motor is defective. Execute the pickup-motor driving test in the actuator-drive mode. If the motor is
defective, replace the pickup motor. See
Pickup motor on page 172.
The pickup roller is worn or deformed. Replace the pickup roller. See Feed and separation rollers (Trays 2-5)
on page 86.
The tray 2 separation roller is worn or
deformed.
Replace the separation roller. See Feed and separation rollers (Trays 2-5)
on page 86.
Poor contact of the TOP sensor connector. Reconnect the intermediate connector (J74) of the TOP sensor and connector
(J145) on the DC controller PCA.
The TOP sensor (SR20) is defective. Run the manual sensor test to verify that the TOP sensor is functioning properly.
See
Manual sensor test (special-mode test) on page 246 for information. If it is
not, replace the registration assembly. See
Registration assembly
on page 128.
Poor contact of the pickup solenoid drive
connector.
Reconnect the connector (J59) of the pickup solenoid and (J115) on the DC
controller PCA.
396 Chapter 3 Solve problems ENWW