Plotter Repair Service History — Bryan, TX

Problem: HP DesignJet Z5600 would not read files from a USB drive and would not print. PDF files hung in processing; a firmware load via USB was also rejected, including in preboot service mode. Multiple 08:04 errors were present.

Solution: Technician ran full diagnostics with no failures detected, then performed an EEROM reset, which restored USB printing functionality. Carriage rod was lubricated. Hard drive remains a suspect if the fault recurs; replacement will be recommended at that time.

Problem: HP DesignJet 800ps wide-format plotter lost network connectivity, preventing print jobs from reaching the device.

Solution: Diagnosed the connectivity failure as an ISP-side router fault — all router indicator lights were red and internet service was intermittent onsite. Configured static IP addresses on both DesignJet 800ps units to stabilize network assignment. AT&T confirmed the router was faulty and replaced it; both

Problem: HP DesignJet T120 24" (CQ891C) reported paper roll not feeding and cutter assembly hanging up during operation.

Solution: Technician verified roll feed was functional, cleaned feed sensors as a precautionary measure, confirmed belt condition, and replaced the cutter assembly (CQ890-67108) due to confirmed hang-up. Unit tested and returned to service.

Problem: HP DesignJet 2500 wide-format plotter reported a printhead error, causing print output failures at a College Station, TX location.

Solution: Technician cleaned the printhead and surrounding carriage area, reseated the data cables, verified firmware version, and tested print output to confirm normal operation.

Problem: HP DesignJet T830 36" (Model F9A30A) required new installation and network setup at a Huntsville, TX location.

Solution: Technician unboxed and assembled the HP DesignJet T830 36". Unit was connected to the network; customer's IT department was advised to complete network configuration. Functionality was verified using letter-size media in the absence of a roll supply.

Problem: HP DesignJet L26500 60" (CQ869A) presented with a color sensor error and line sensor fault, compounded by incompatible aftermarket printheads and ink cartridges.

Solution: Technician performed a preventive maintenance visit and diagnostics on the HP Latex L26500. Color sensor (CH955-67101), line sensor (CQ869-67062), and cutter assembly (CH955-67007) were identified as requiring replacement. Customer did not approve the repair quote; call closed with unit operational

Problem: HP DesignJet 500 42" plotter in Huntsville reported degraded output quality and required new printheads and a cutter assembly replacement.

Solution: Technicians replaced the cutter assembly and all four printheads. Repeated cyan and magenta printhead compatibility failures — across multiple new units from HP and third-party suppliers — pointed to a faulty carriage assembly (C7769-60376) and trailing cable (C7770-60274), which were subsequently r

Problem: Customer reported the HP DesignJet T1100 plotter came to a sudden halt after the carriage belt tore apart mid-operation.

Solution: Technician found the carriage belt assembly and tensioner failed. Belt tear damage extended to the carriage unit, requiring replacement of all three components. Full print operation restored after parts installation.

Problem: HP DesignJet T2530 would not print. One of two ink sets was unrecognized; the unresponsive cartridge was traced to the yellow channel, where a remanufactured ink cartridge was installed.

Solution: Replaced the yellow ink cartridge with an OEM HP B3P21A and cleared the recognition error. Removed two media jams, ran a scan-axis test, and confirmed belt and encoder in good condition. Customer was advised to replace remaining remanufactured cartridges with OEM ink to prevent recurrence.

Problem: Customer required installation and network setup of a newly purchased HP DesignJet T830 36" MFP wide-format plotter, replacing an existing Canon unit.

Solution: Installed HP DesignJet T830 36" MFP, configured IP and hostname, tested internal print and copy functions, and coordinated with the customer's IT department for full network integration. A formatter sourced from spare parts inventory was set aside for the customer's use.

Problem: HP DesignJet T930 36" plotter (L2Y21A) repeatedly threw error 39.12.01 'Roll Not Loaded' after each print job, preventing output.

Solution: Technician cleaned the unit and seated the media hub, but error 39.12.01 recurred. Diagnosed a failed spindle assembly and top rewinder support. Replaced 36" spindle assembly (CR357-67093) and top rewinder support A (CR357-67037). Unit printed full queue and test prints; confirmed fully operational

Problem: HP DesignJet Z2100 24" plotter presented with a shredded carriage belt, preventing normal print head movement.

Solution: Replaced the carriage belt. A stripped screw required drill extraction; a stud was hammered in to secure the left arm swivel. Oiled the carriage rod, vacuumed the interior, and cleared heavy ink buildup from the service station and left-side spittoon. Advised the customer that the photo black print

Problem: HP DesignJet T1600 in Bryan reported repeated media jams and carriage hesitation during print jobs.

Solution: Technician diagnosed worn carriage assembly and carriage belt assembly with tensioner. Both components were replaced, resolving the jamming and hesitation.

Problem: HP DesignJet Z6200 60" plotter presented for scheduled PM3 bi-annual cleaning. A pre-existing circuit board fault preventing large-format print jobs had been previously identified and quoted.

Solution: Technician performed bi-annual cleaning on the HP DesignJet Z6200 60" with no new issues found. The known circuit board fault limiting output to small jobs remains unresolved pending quote approval. Unit is on a bi-annual maintenance schedule with service intervals in December and June.