Using the PCA LEDs to Troubleshoot. HP Designjet Z6100 42-inch, Designjet Z6100 60-inch
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The HP Designjet Z6100 42-inch and Designjet Z6100 60-inch printers are large format printers designed for high-quality printing of graphics, photos, and technical documents. They offer a wide range of features, including a high-resolution print head, a precise paper advance system, and a robust ink delivery system. These printers are ideal for professional photographers, graphic designers, and engineers who need to produce high-quality prints for a variety of applications.
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1.
When only the Amber LED is On:
• The Printer has been switched Off from the Front Panel (after having pressed the On/Off button).
• The Power Supply Unit only delivers a 5 V “Standby”; power that is needed to restart the Printer after the Front Panel On/Off button is pressed (the Formatter/Main PCA will initiate the Printer to start).
2.
When the Blue LED is On: Deliver standard “ATX” power for the Electronics Module PCAs (+12V,
+5V, -5V, -12V, etc...). All the functions of the Electronics Module are fully operational (EWS, etc...).
3.
When the Green LED is On: Deliver “analog” 24V and 42V to enable printing.
The Printer monitors and reports different signals: PSU fan issues, 24V and 42V delivery failures (specific
System Error reported pointing to PSU failure).
PSU Blue
LED
Status
ON
ON
ON
ON
OFF
ON
PSU
Green
LED
Status
OFF
OFF
ON
ON
ON
ON
Left LED (on Front
Panel) Status
Red (Front Panel Black)
Green (flashing)
Green
Green
Any
Standby (with Embedded Web Server up and running)
Initializing
Ready (but not printing)
Printing or preparing to print
Not possible
Red (Front Panel Black) Not possible
Printer Status
Using the PCA LEDs to Troubleshoot
In certain circumstances, the LEDs located on the Interconnect PCA and PrintMech PCA can help to troubleshoot the Printer. The LEDs can either be ON or Off and using different combinations can indicate different problems.
Interconnect PCA
The following illustration shows the locations of the LEDs on the Interconnect PCA
DS1: 24V
DS4: VPOWER2
DS5: 5V
DS3: 5Vsb
Interconnect PCA
5V - Comes from the PSU after the fuse on Interconnect PCA. Used to power On Front Panel and some
Interconnect Electronics. Should be ON at the same time as Blue Power Switch LED.
5Vsb - Comes from the PSU after the fuse on Interconnect PCA. Used to power On the Printer from the
Front Panel. Should be ON at the same time as Blue or Amber Power Switch LED.
16 Chapter 1 Troubleshooting
24V - Comes from the PSU after a fuse on the PrintMech PCA.
VPOWER2 - Comes from the PSU (42V) after a fuse on the Interconnect PCA. Used to power the Carriage
PCA. Should be ON at the same time as Green Power Switch LED.
PrintMech PCA
The following illustration shows the locations of the LEDs on the PrintMech PCA.
DS7: 5Vsb
DS5: VAUX=12V
PrintMech PCA
DS4: 24V
DS3: VPOWER2
DS2: 5V
DS1: 3V3
5Vsb - Comes from the PSU after the fuse on PrintMech PCA.
3V3 - Comes from the Power Supply Unit.
5V - Comes from the Power Supply Unit.
VPOWER2 - Comes from the PSU (42V) after a fuse on the PrintMech PCA.
VAUX - Comes from the PSU (12V) after a fuse on the PrintMech.
Identifying faults from LED status
Use the following procedure to identify faults from the status of the LEDs.
1.
If the Printer cannot be turned ON:
Signal LED on
Interconnect
PCA
LED on
PrintMech
PCA
Power
Switch
LED
5Vsb
5Vsb
OFF
ON
ON
OFF
Amber
Amber
Corrective Action
•
•
•
•
Check the connection between the PSU and the Interconnect
PCA.
If connection OK, replace the
Interconnect PCA
⇒
Check the connection between the PSU and the PrintMech PCA.
Make sure that ALL cables between the PSU and PrintMech are not damaged and are connected correctly.
Using the PCA LEDs to Troubleshoot 17
Signal LED on
Interconnect
PCA
LED on
PrintMech
PCA
Power
Switch
LED
Corrective Action
5Vsb OFF OFF
Amber or no
LED
•
•
•
Check the connection between the PSU and the PrintMech PCA and Interconnect PCA.
If connection OK, check that power reaches the PSU (check the power outlet).
If power reaches PSU, replace the
PSU
⇒
2.
If the Printer starts (after having pressed the ON button on the Front Panel) but the front Panel remains black:
Signal LED on
Interconnect
PCA
LED on
PrintMech
PCA
Power
Switch
LED
Corrective Action
5V
5V
OFF
ON
ON
ON
Blue
Blue
•
•
•
•
Check the connection between the PSU and the Interconnect
PCA.
If connection OK, replace the
Interconnect PCA
Check the connection between the Front Panel and the Interconnect PCA.
If connection OK, replace the
Interconnect PCA
3.
The Printer is up and running, or may have a System Error at the end of the power-up sequence. For the Carriage PCA connection, perform the Scan-Axis Test
Signal
LED on
Interconnect
PCA
LED on
PrintMech
PCA
Power
Switch
LED
5V
24V
24V
OFF
ON
OFF
ON
ON
OFF
Blue
Blue and
Green
Blue and
Green
Corrective Action
•
•
•
•
•
Check the connection between the PSU and the Interconnect
PCA.
If connection OK, replace the
Interconnect PCA
Check the System Error that is produced and run the corresponding Diagnostic Test (either
Scan-Axis or Media-Axis Test.
Check the connection between the PSU and the PrintMech PCA and Interconnect PCA.
If connection OK, run the Electronics Module Test to further diagnose the problem.
18 Chapter 1 Troubleshooting
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Key Features
- High-resolution print head
- Precise paper advance system
- Robust ink delivery system
- Wide range of media support
- Intuitive user interface
- Advanced color management features
- Networking capabilities