Real-time updates and completed service calls from across the metro area.
Our technicians are in the field every day fixing equipment for local engineering firms, architects, and print shops. Below is a log of recent plotter service calls completed throughout Denver, Aurora, Arvada, Castle Pines, and surrounding areas—showing the exact plotter models, reported issues, and on-site fixes delivered by our team.
Aug 18, 2026·Englewood, CO 80110·HP Z6100
Problem:
HP DesignJet Z6100 wide-format plotter in Englewood, CO required a replacement drive belt.
Solution:
Replacement drive belt sourced and shipped to the customer's location. Part delivered via FedEx Ground; work order closed upon confirmed receipt.
Aug 7, 2026·Louisville, CO 80027·HP T520
Problem:
HP DesignJet T520 plotter in Louisville, CO was due for preventive maintenance. Upon arrival, the unit was unresponsive and required two power cycles to reach a ready state. The multi-purpose sheet feeder was also found to be failing to feed 11×17 paper.
Solution:
Performed preventive maintenance on the HP DesignJet T520. Restored normal operation via power cycling after two reboots. Diagnosed multi-sheet tray module (part # CQ890-67007) as the cause of the sheet-feed failure; the customer opted to proceed with PM service only and declined the tray replacemen
May 29, 2026·Arvada, CO 80002·HP T520e
Problem:
HP DesignJet T520e wide-format plotter in Arvada would not print. After a black ink cartridge replacement, the unit displayed a cartridge-damaged error and flagged the yellow ink cartridge with an fault indicator.
Solution:
Technician diagnosed the yellow cartridge error by isolating it against other cartridges, confirming the cartridge itself was not the root cause. Firmware update attempted via printer menu and shop connection — both failed. Full disassembly revealed the printhead area and service station were satura
May 12, 2026·Arvada, CO 80002·HP Designjet 510
Problem:
HP DesignJet 510 42" reported error code 86:01 paper jam, preventing normal print operation.
Solution:
Replaced carriage belt from stock, oiled the carriage rod, and vacuumed the unit. Firmware was updated via USB from a laptop following driver downloads through Windows Update, resolving a known printhead compatibility issue affecting the 500, 510, and 800 series. Customer verified operation with a t
May 7, 2026·Arvada, CO 80002·HP T3500
Problem:
HP DesignJet T3500 36" eMFP in Arvada, CO displaying a persistent error 79:04 on the control panel. Power cycling the unit multiple times did not clear the fault.
Solution:
Technician power cycled the unit, which reached ready status, then updated firmware to aeneas_04_05_01. Oiled the carriage rail, inspected and cleaned the printer, printed a diagnostic page, and confirmed network print jobs completed without error.
Feb 25, 2026·Louisville, CO 80027·HP T2300
Problem:
HP DesignJet T2300 MFP 44" throwing error code 21:13; carriage clip broken, causing carriage to slip free of the drive belt on startup.
Solution:
Diagnosed 21:13 service station error. Confirmed broken carriage clip and belt-slip condition. Ran starwheel motor and service station diagnostics — both passed. Replaced carriage assembly (CH538-67044), oiled carriage rod, and cleaned service station ink drop plate. Customer to source and install r
Oct 7, 2025·Parker, CO 80134·HP Designjet Z9+
Problem:
HP DesignJet Z9+ wide-format plotter in Parker, CO reported an ink system error with no clear indication of cause.
Solution:
Technician performed on-site preventive maintenance cleaning and diagnostic evaluation. Inspection identified a failed service station requiring replacement; a repair quote was issued to the customer.
Jun 18, 2025·Westminster, CO 80030·HP T7200
Problem:
HP DesignJet T7200 42" wide-format plotter producing black banding lines on all output, including internal test prints.
Solution:
Technician isolated the printheads to identify the defective Matte Black unit. Replaced the Matte Black ink cartridge and printhead; banding persisted, pointing to an electrical fault. Main logic board identified as likely root cause. Customer elected to close the call and evaluate plotter replaceme
Showing 8 of 8 service calls in Denver, CO.