Case Study: HP DesignJet T950 MFP Carriage Jam Resolution
The Challenge: Carriage Jam Emergency
Dxx Consult Sdn Bhd, an engineering consultancy firm at Tadisma Business Park in Shah Alam, encountered a critical carriage jam issue with their HP DesignJet T950 MFP 36-inch multifunction plotter. The carriage system had completely seized, preventing any printing or scanning operations.
For consultancy firms handling technical documentation and project drawings, a jammed carriage means complete system downtime—no printing, no scanning, no document processing. The client contacted DPI Technology support and our technical team dispatched technician to their facility in Seksyen 13, Shah Alam.
The Diagnosis: Belt Pulley Failure
Upon arrival in the evening, technician performed an emergency diagnostic inspection of the carriage mechanism. The root cause was quickly identified:
🔍 The Issue:
The Belt Pulley (CQ890-60230) had broken, causing the carriage belt system to fail completely. This critical component is responsible for transferring motor drive force to move the carriage assembly smoothly along the printer's axis.
⚠️ The Symptom:
A broken belt pulley results in immediate carriage jam. The carriage cannot move to its home position or traverse across the media, rendering the entire printer inoperable. The MFP's scanning function is also affected as it relies on the same carriage mechanism.
📋 Technical Impact:
Belt pulley failures typically occur due to mechanical wear, excessive tension, or foreign object interference. When the pulley breaks, the belt loses proper tension and tracking, causing the carriage to jam and preventing all printer operations.
The Solution: Swift Pulley Replacement
Since this HP DesignJet T950 MFP was under "In Warranty Service", the belt pulley replacement was covered at no cost to the client.
DPI Technology's emergency repair process:
- Emergency Diagnostic: Quickly identified the broken belt pulley as the cause of carriage jam.
- Carriage System Access: Safely accessed the internal carriage mechanism and belt drive system.
- Pulley Replacement: Removed the broken pulley and installed a new genuine HP belt pulley (CQ890-60230).
- Belt Tension Adjustment: Properly tensioned the carriage belt to ensure smooth, reliable movement.
- System Testing: Performed comprehensive tests including paper loading, carriage movement, and print quality verification.
The complete emergency repair was finished within the same evening visit, restoring full functionality to both printing and scanning operations.
Why Choose DPI Technology?
Emergency breakdowns demand immediate expertise and rapid response. Our team understands that when your equipment fails, every minute counts. Our technician ability to quickly diagnose the belt pulley failure and complete the repair in a single visit demonstrates our commitment to minimizing your operational disruption.
With genuine HP parts always on hand and certified engineers ready to deploy, we turn equipment emergencies into minor interruptions. Your business continuity is our priority, and our same-day resolution capability ensures you're back to full productivity without extended downtime.
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