HP designjet l65500 Manuale Di Servizio
Tr
ou
bles
hooting
174
Troubleshooting
J.
Trailing cable failure
Corrective action
An object in the carriage path/rods oiling
1.
Check for possible media jams or objects in the platen area.
2.
Check there is sufficient oil on the rods
Scan Axis cables disconnected
3.
Check the data cable (Main Interconnect >motor) and the power cables (e-cabinet>motor) and
ensure they are all correctly connected at both ends.
Scan Axis motor failure.
4.
Check the supply and arrival of the 42v to the Scan Axis motor after the printer is armed (start diag-
nostics 2.3 and arm the printer.
Error displayed while performing the 5.1 impelling system diagnostic test
5.
When performing the test in open loop, if the motor does not move:
•
Check the 24v supply to the motor electronics (check the LED next to the data connector in the
Main interconnect), ensure the cable is connected correctly.
•
If the power is not on with 24v active (diagnostics 2.3), disconnect the data cable if it turns on,
replace the Man Interconnect board page 520. Note: check before reconnecting as the
fault may come from the motor, if it does replace the Scan axis motor page 620.
•
If the system still fails, replace the motor cables, Main interconnect and retest
6.
When performing the test in open loop, the encoder units are not detected:
•
Check all the Scan Axis encoder path, ensure everything is correctly connected:
- Encoder>Carriage Interconnect>Flat Data Cable.
- Printhead Interconnect>Trailing Cable>Upper Engine PCI board.
- If all the connections are ok, replace the Carriage Encoder sensor page 655.
- Encoder>Carriage Interconnect>Flat Data Cable.
- Printhead Interconnect>Trailing Cable>Upper Engine PCI board.
- If all the connections are ok, replace the Carriage Encoder sensor page 655.
7.
When performing the test in open loop, there is high friction in the Carriage movement:
•
Ensure the rods are well lubricated and there is no mechanical obstruction to the carriage path
(uncap carriage and move the carriage along the scan axis, repair if required).
Faulty Scan Axis Encoder Strip
8.
If the failure is always in a particular place of the Scan Axis, check for possible damage in the
metallic scan axis encoder strip and replace if there is damage page 631.
Faulty Carriage Interconnect PCA
9.
Replace the Carriage Interconnect PCA page 657.
Faulty Flat data cables
10.
Replace the Flat data cables.
Printhead Interconnect board failure
11.
Swap the Printhead Interconnect 1 and 3 and recheck the error, if the error has moved to the new
location, replace the board page 658.
Upper Engine PCI board failure
12.
Replace the Upper Engine PCI board page 515.
Trailing cable failure
13.
Replace the complete TRS system with tubes and trailing cable page 598.