Plotter Repair Service History — Corpus Christi, TX

Problem: HP DesignJet T2300 wide-format plotter reported intermittent ink leaking on the right side when the carriage was parked, along with a false 'no toner cartridge' error preventing print jobs from completing.

Solution: Replaced two black printheads (C9383A, C9384A, C9380A OEM) and the service station (CH538-67040). Removed duct tape from the interior and cleaned inside the case. A plastic-lined box was placed under the plotter to contain any residual leaks. Ink tube assembly (CN727-60097 / CR649-67006) identified

Problem: HP DesignJet T790 44" reported multiple issues, including poster print jobs cutting off portions of the image after the customer's network upgraded to Windows 365.

Solution: Technician cleaned and lubricated the carriage rail, carriage belt, and encoder strip; diagnostic page confirmed the hardware was functioning correctly with current firmware. The image-cropping issue was traced to incompatible print settings in Microsoft Publisher and PowerPoint when printing via a

Problem: User reported the belt in the plotter is damaged and looks like it is about to break.

Solution: The technician replaced the carriage belt assembly per the request of the customer and also found the rails were in need of lubing. After lubing the rails and replacing the belt the plotter started working to spec.

Problem: HP DesignJet T2300 MFP 44" reported a damaged paper bin requiring a replacement part.

Solution: Replacement paper bin sourced and ordered for the HP DesignJet T2300 MFP 44"; part shipped directly to the customer's location in Fulton, TX.

Problem: HP DesignJet 500 42" (C7770B) reporting a 21:10 error; service station was mechanically hung up, preventing normal carriage operation.

Solution: Freed the stalled service station by manually turning the drive gears, then replaced the service station (C7769-60149) and oiled the carriage rod. Carriage exhibited minor jumpiness and hesitation on return movement post-repair but produced no 86 errors. Unit was configured on the customer's new com

Problem: HP DesignJet L25500 61" (CH956A) reported leaking ink. A full black ink cartridge had emptied inside the plotter, saturating internal components.

Solution: Removed all covers and inspected for damage. Ink had reached the ISS PCA boards, center platen, rollers, vacuum fan assembly, aerosol filter and fan, and drop detector sensor — main and heating boards were unaffected. Documented damage photographically. Customer's insurance claim was denied; custome

Problem: HP DesignJet T1100 in Port Aransas reported audible noise and reduced print efficiency. Inspection confirmed a severely frayed carriage belt.

Solution: The carriage belt assembly and tensioner were replaced. Following lubrication, cleaning, and functional testing, the plotter returned to within-spec operation.

Problem: Customer reported the HP DesignJet T2530ps was producing a squeaking noise during print cycles.

Solution: Technician lubricated the carriage rails and cleaned the interior. Further diagnostics identified a failing carriage assembly, which was replaced, resolving the noise and restoring normal operation.

Problem: HP DesignJet T530 36" plotter not cutting paper; carriage assembly intermittently failing to engage cutter on final cut, with audible gear clicking during cutter return to home position.

Solution: Inspected and reseated cutter assembly. Diagnosed intermittent engagement failure between carriage and cutter assemblies with gear clicking on return stroke. Replaced cutter assembly (CQ890-67108) and tested cutting function across full carriage travel. Machine cleared for return to service.

Problem: HP DesignJet T520 24" (CQ890A) cutter malfunctioning — intermittent cuts on GIS map prints, no cuts on standard jobs, and cutter assembly floating after locking in.

Solution: Diagnosed a combined driver and cutter hardware failure following a network-wide OS upgrade. Coordinated driver permissions with remote IT. Reloaded the Windows driver and replaced the cutter assembly (CQ890-67017). Tested print and cut cycles; unit returned to full operation.

Problem: HP DesignJet T790 (CR648A) brought in with ink delivery issues affecting print quality.

Solution: Ran printhead cleaning cycles to diagnose ink flow; confirmed Cyan/Magenta printhead (C9383A) required replacement. Customer also needed to replace the yellow ink cartridge. Technician noted the plotter sits idle frequently, which contributed to the ink issues. Printhead was sourced and shipped dire

Problem: HP DesignJet 800 42" (C7780C) presented with a shredded drive belt, halting plotter operation.

Solution: Replaced the shredded drive belt from field stock. Cleaned the plotter, replaced the yellow printhead, and updated firmware. Cleared persistent printhead failure errors by connecting the unit directly to a wall outlet. Tested and confirmed normal operation.

Problem: HP DesignJet 800 42" (C7780C) presented with multiple issues including suspected carriage belt failure, dried ink cartridges, and dry printheads after extended period of inactivity.

Solution: Diagnosed carriage belt wear requiring replacement of the C7770-60014 42" belt. All four ink cartridges (cyan C4911-61002, magenta C4912-61003, yellow C4913-61003, black C4844-60053) were solidified from disuse. All four printheads (C4810A, C4811A, C4812A, C4813A) were also dry. Ink tube assembly co

Problem: HP DesignJet Z5200 (CQ113A) powered on but would not print, throwing error code 02.1:10 — a ribbon cable fault — after the customer had self-installed a third-party service station sourced from Amazon.

Solution: Diagnostics confirmed error 02.1:10 on both the carriage and main PCA, plus a secondary 03:10 power supply failure. Carriage contacts were cleaned with no change. The aftermarket service station carried mismatched part numbers (Q6718-60032 / Q6675-60049 vs. correct Q6718-67025) and was linked to a r