• Code: 50.01.01:01
• Description: OMAS opti-electronics error (cable or mini-PCA at sensor). OMAS disabled. But the printer can still print. Run diagnostics and/or call your support representative. Critical error detected on the OMAS controller board. This failure occurs only during the OMAS controller selftest (when the printer starts).
• Causes: a. Sporadic failure b. Failure in OMAS controller
• Remedy: 1. Restart the printer. This may be sufficient in some cases. 2. If the error is persistent, you can continue printing by turning off the OMAS. 3. Check the OMAS controller board to make sure that everything is correctly connected and undamaged. 4. Replace the OMAS and vacuum control box.

• Code: 50.01.01:77
• Description: OMAS window dirty. OMAS disabled, but the printer can still print. Run diagnostics and/or call support.
• Causes: a. OMAS is dirty. b. OMAS is not properly connected. c. OMAS is faulty. d. OMAS PCA is faulty.
• Remedy: 1. Check and clean the OMAS window. 2. Run subsystem diagnostics. 3. Check connections. 4. Replace OMAS and/or OMAS PCA.

• Code: 50.03.01:01
• Description: OMAS controller operational failure. Substrate advance closed loop lost. Run diagnostic and call support if the problem persists.. The OMAS is disabled, and the printer tries to continue printing. The OMAS will be re-enabled at the next start-up.
• Causes: 1. Sporadic failure 2. Internal firmware error in OMAS controller 3. OMAS controller failure
• Remedy: 1. Restart the printer. This may be sufficient in some cases. 2. If the error is persistent, it is possible to continue printing by turning off the OMAS. However, we recommend solving the system error to obtain the full range of printer features. 3. Replace the OMAS and vacuum control box. 4. Replace the OMAS cable

• Code: 50.03.01:03
• Description: OMAS firmware version mismatch. OMAS disabled, but the printer can still print. Check that your firmware is up to date.. The system automatically updates the internal firmware when a mismatch occurs; therefore this error is displayed only if the internal system has been corrupted and an update is not possible.
• Causes: Failure in OMAS controller
• Remedy: Replace the OMAS and vacuum control box.

• Code: 50.07.01:04
• Description: OMAS controller CAN communication error. Substrate advance closed loop lost. Run diagnostic, and call your support representative if the problem persists.. Failure in communication with the OMAS controller board via CAN from the main interconnect board.
• Causes: a. OMAS controller power failure b. CAN cable line failure œ From main interconnect board to OMAS controller (cable disconnected or failed) œ From upper engine PCA to main interconnect board c. Vacuum controller PCA CAN line failure d. OMAS controller failure
• Remedy: 1. Perform the power diagnostics procedure to supply 24 V power. Check power LEDs on the vacuum controller. If the LEDs are off, check power arrival in the power connector (GND, 5 V and 24 V). 2. If power does not arrive, check cable connections in the main interconnect board and ensure voltages are coming from the main interconnect board connector. 3. If power does not leave the main interconnect board, remove the main interconnect board cover and ensure all power LEDs are on. 4. If all the main interconnect board power LEDs are not on, check power arrival to the main interconnect board, check cable integrity and connectors. 5. If no problem with the cables or connectors is found, replace the main power supply. See E-box PSU. 6. If power arrives to the main interconnect board, replace the main interconnect board. 7. Check data cable connections. 8. Any LAN cable with the necessary length can be used to perform troubleshooting. Replace the cable and restart the printer. If the problem is the LAN cable, HP recommends that you replace it with the appropriate HP service part. 9. Disassemble the OMAS and vacuum PCA box and ensure all connections are correct. 10. Replace the OMAS and vacuum control box.

• Code: 51.01.00:92
• Description: Main window is open. Close the windows to continue printing. If the problem persists, run diagnostic to identify problem.
• Causes: a. Main window is open or switch finger is missing or damaged. b. Switch is not connected or wiring is damaged. c. Switch is faulty.
• Remedy: 1. Check that, when the window is closed, the switch is mechanically activated. 2. Check the wiring and plugs. 3. Replace the switch.

• Code: 51.02.00:92
• Description: Front cover is open. Close the front cover to continue printing. If the problem persists, run diagnostic to identify problem.
• Causes: a. Front cover is open or safety interlock finger is missing or damaged. b. Safety interlock is not connected or wiring is damaged. c. Safety interlock malfunction.
• Remedy: 1. Check that, when the front cover is closed, the switch is mechanically activated (run diagnostic). 2. Check wiring and plugs. 3. Replace the safety interlock.

• Code: 51.03.00:92
• Description: Loading table is not closed. Close loading table to continue printing. If the problem persists, run diagnostic to identify problem.
• Causes: a. Loading table is open or safety interlock finger is missing or damaged. b. Safety interlock is not connected or wiring is damaged. c. Safety interlock malfunction.
• Remedy: 1. Check that, when the loading table is closed, the switch is mechanically activated (run diagnostic). 2. Check the wiring and plugs. 3. Replace the safety interlock.