• Code: 51.04.00:92
• Description: Emergency stops and/or safety relay activated. Check that emergency stops are not activated. If the problem persists, run diagnostic to identify problem.
• Causes: a. Emergency stop is really activated. b. Emergency stop is not connected or wiring is damaged. c. Emergency stop is broken.
• Remedy: 1. Run diagnostic to check which emergency stop is raising the problem. 2. Check the wiring. 3. Replace the emergency stop.

• Code: 52.00.00:01
• Description: Drop detector all-sensors problem. Run subsystem diagnostic. Call support if diagnostic fails or print quality is affected.
• Causes: a. Service-station interconnect board or cable failed. b. Main interconnect board failed.
• Remedy: 1. Check the service-station interconnect board cable connections at both ends (service station and main interconnect board). Make sure that the cable is well connected and check cable integrity, replace parts if required. 2. Ensure that power (12 V and 5 V) is reaching the board (Power LEDs on). Check the LEDs in the dropdetector interconnect. 3. Replace the service-station interconnect board and cable. 4. Replace the main interconnect board after finding the root cause of the failure, such as drop detector or faulty cable.

• Code: 52.00.00:83
• Description: Drop detector all-sensors problem. Run subsystem diagnostic. Call your support representative if the diagnostic fails or print quality is affected.
• Causes: Due to NVM change, because of a reset or hard disk replacement.
• Remedy: Repeat the calibration.

• Code: 52.00.00:91
• Description: Drop-detector bump switch not activated. Reboot in diagnostic mode and run subsystem diagnostic. If the problem persists, call your support representative and store printheads in their orange caps.
• Causes: a. Bump is detected but bump switch is not activated. b. Drop-detector shutter friction is too high at some point, detecting a bump before reaching the bump switch. c. Bump switch is broken or disconnected.
• Remedy: 1. Check that the drop-detector worm and sliders are clean and greased, and there is no high friction zone along its displacement. 2. If the drop-detector shutter reaches the switch but is not detected, check the cable and /or replace the bump switch.

• Code: 52.01.01:01 ... 52.01.07:01
• Description: Drop-detector sensor 0X issue detected, sensor disabled. Run subsystem diagnostic. Call your support representative if diagnostic fails, or print quality is affected. The drop detectors’ basic operation consists of receiving power to feed an LED transmitter and a receiver situated at both sides of the drop-detector window. In standby with no drops or interference in the drop detector window, the transmitter is permanently powered and the receiver receives a signal of medium range (total range from 0 to 255, medium range signal around 127). The system error is displayed when the drop detector is 0 in standby (12 V supplied to the drop detectors, but there is no drop detection activity).
• Causes: a. Drop detector disconnected b. Drop detector failed c. Service station interconnect board or cable failed d. Main interconnect board failed
• Remedy: 1. Make sure that the drop detector is correctly connected to the service station interconnect board. Use diagnostics to check whether the drop detector is disconnected or faulty. 2. Swap the problematical drop detector connection with another drop detector to check whether the problem is with the actual drop detector. If so, replace the drop detector. 3. Check the service station interconnect board cable connections at both ends. Make sure the cable is well connected and check cable integrity, replace parts if required. 4. Ensure power (12 V and 5 V) arrives to the board (Power LEDs on). Check the LEDs in the drop detector interconnect. 5. Replace service station interconnect board and cable. 6. Replace the OMAS PCA.

• Code: 52.01.01:83 ... 52.01.07:83
• Description: Drop-detector sensor X not calibrated, sensor disabled. Run subsystem diagnostic. Call your support representative if diagnostic fails, or print quality is affected.. The drop detector is unable to detect its exact position to perform the drop detection. When performing a drop detection, the printer performs a synchronization with the linear encoder and the tail encoder located in the service station motor in order to establish its position with respect to the drop detector windows before performing the actual drop detection action. This error indicates that this synchronization cannot be achieved as the readings from the two encoders do not match according to the movements performed.
• Causes: a. Intermittent failure mostly seen when previously used printheads are installed b. Drop detector linear encoder strip not correctly installed or connected c. Drop detector linear encoder sensor dirty, disconnected, or failed d. Incorrect calibration of drop detector system e. Power not arriving to the service station PCA f. Service station interconnect board or cable failure g. Main interconnect board failure
• Remedy: 1. Check the functionality of the drop detector. 2. Check the linear encoder strip in the service station. Make sure that the encoder strip is correctly installed in the sensor and well placed in its holders at each end. 3. Check the linear encoder sensor connection. Perform the drop detector diagnostic test to check the linear encoder. If the test fails, replace the encoder system. 4. Perform a drop detector calibration. 5. Ensure power (12 V and 5 V) is reaching the service station interconnect board (power LEDs on). 6. If power is getting through (LEDs on), replace the service station interconnect board and cable. 7. If there is no power (LEDs off), replace the main interconnect board. 8. Check the cable connections of the service station system. If no failure is found, replace the service station interconnect board. 9. Replace the main interconnect board. a. Print the nozzle check by following the directions in the service menu. b. Cancel the drying time to save 10–15 minutes. c. If no failure is detected, there no need to go further, the drop detector is working correctly and the intermittent system error is due to the high usage of the printheads.

• Code: 52.02.00:83
• Description: Calibration LS2K missing. Automatic substrate load and alignment disabled, only manual options available. Contact your support representative.
• Causes: a. Calibration value missing b. Unable to perform calibration
• Remedy: 1. Repeat the calibration. 2. Replace the sensor.

• Code: 52.02.01:11 ... 52.02.04:11
• Description: Drop-detector electronics X, 5 V power issue. Run subsystem diagnostic. Call support if the diagnostic fails, or print quality is affected.
• Causes: a. Cabling connector problem b. Drop-detector PCA problem c. PSU problem (check whether this error happens to all drop-detector sensors)
• Remedy: 1. Run the drop-detector diagnostics. 2. Check drop-detector PCA LEDs for troubleshooting. See Board name: Drop-detector PCA. 3. Replace the faulty part.