HP Scitex FB10000 Industrial Printer Geffen TS Error 66050
Summary
This comprehensive technical guide provides critical troubleshooting steps for error ID 66050: Cyan cross valve front failed to close on pneumatic printing equipment. It details the root causes and diagnostic procedures for failure, including issues with 24V supply, air pressure loss, mechanical sticking, or faulty sensors/B&R modules. Designed for highly skilled technicians, particularly HP certified electricians, this manual walks users through complex system checks, ensuring safe repair of high-voltage pneumatic systems.
Page 1 Text Content
Error ID: 66050: Cyan cross valve front failed to close FB10000 Error Messages Troubleshooting
FB10000 Error Messages Troubleshooting Error ID: 66050: Cyan cross valve front failed to close Error Severity: Critical Possible Causes
Cross valves sensors do not receive 24V supply Feeding valve in Bridge Pneumatic panel does not supply air pressure to cross valves Main Valve in Main Pneumatic panel does not supply air pressure to feeding valve in bridge pneumatic panel One or more cross valve(s) are mechanically stuck One or more cross valve sensor(s) is faulty B&R module 1DO2 in LEC is faulty One of the B&R modules 6DI1, 6DI2, 6DI3 on the bridge is faulty
Troubleshooting Flowchart
Page Summary Contents For HP Scitex FB10000 Industrial Printer Geffen TS Error 66050
Manual Details
| Brand | HP |
|---|---|
| Pages | 7 |
| File Size | 917.49 KB |
| Published | May 22, 2026 |
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Frequently Asked Questions
What should I check if all cross valves fail to switch state?
Check if there is a central 24V supply path from the LEC, verifying wiring and connections. Also confirm if both 24V and pressurized air (7 Bar) are supplied.
How do I diagnose if a specific cross valve sensor is faulty?
If the valve flag moves when changing state, but the optical sensor does not change states even with voltage applied, the sensor itself is likely faulty and needs replacing.
What resources are needed to fix the pressurized air supply to the cross valves (Cross Valves do not receive pressurized air)?
Check connecting tubes from the Feeding Valve in the Bridge pneumatic panel and the Main Valve in the Main pneumatic panel. Repair any air tubing leaks as required, and confirm pressure at these points.