Plotter Repair Service History — Irvine, CA

Problem: HP DesignJet T2300 wide-format plotter in Aliso Viejo displaying a persistent 'Please Restart' error, preventing normal operation.

Solution: Technician rebooted the T2300, reloaded media following the on-screen prompts precisely, ran internal test prints, and cleaned the unit. All prints passed verification.

Problem: HP DesignJet Z5600 44" reported horizontal voids spanning all color channels through printed images, and Excel/PDF jobs holding with an 'On Hold For Paper' prompt requiring manual resume at the control panel.

Solution: Performed a Paper Advance Calibration to eliminate horizontal voids across the print path. Resolved the 'On Hold For Paper' condition by toggling the 'Show Print Preview' setting off within the printer driver. Cleaned and tested the plotter; subsequent full-color output printed without voids or hold

Problem: HP DesignJet Z5600ps wide-format plotter in Buena Park experiencing recurring cyan ink fading — output would appear correct for a few prints, then cyan would drop out repeatedly.

Solution: Technician traced the fault to an air bubble lodged in the cyan ink port inside the carriage assembly. Replaced the ink tube assembly (T0B51-67017) with trailing cable and purged ink lines. Post-install initialization revealed all three printheads were near end-of-life — confirmed when the plotter f

Problem: HP DesignJet T920 plotter repeatedly displayed error code 21:13, halting at 100% of the PrePrinting System Mode initialization sequence.

Solution: Technician cleaned and oiled the carriage rail, reseated the print head assembly, and inspected for debris around the service station. With the fault persisting through full FSCK and initialization cycles, the service station (part #CR357-67025) was replaced. Printer cleaned and tested confirmed nor

Problem: HP DesignJet Z6100 42" reporting paper jam error 86:01.

Solution: Removed right side cover; found drive belt torn and tensioner warped. Installed CQ109-67004 42" belt and tensioner kit, oiled the carriage rod, and replaced all eight printheads from customer-supplied stock to correct severe color print-quality degradation across all channels. Output tested and conf

Problem: HP DesignJet Z2100 photo plotter arrived with a shredded carriage belt. Inspection revealed heavy ink contamination across the service station, fan blades, and fan housing, plus a worn cutter assembly. After those repairs, yellow output was completely absent.

Solution: Replaced carriage belt Q6659-60175, service station Q6718-67025, and cutter assembly Q5669-60713; cleaned all ink contamination. Diagnosed absent yellow output to the magenta/yellow combination printhead C9406A and replaced it. Unit printed correctly across all colors upon completion.

Problem: HP DesignJet Z9 44" reported for preventive maintenance and touchscreen unresponsiveness; customer also experiencing difficulty printing oversized 7×4 ft. poster documents to correct scale.

Solution: Touchscreen was operational on arrival — unit had been in power-save mode. Performed PM: oiled carriage rod, updated firmware manually after auto-update had not applied. Switched driver configuration from unreliable WSD port to static IP port. Demonstrated paper roll loading, ink cartridge, and prin

Problem: HP DesignJet 510 42" plotter reported needing a carriage belt replacement.

Solution: Arrived to find the unit unplugged. Inspection confirmed the carriage belt was frayed. Removed the old belt, cleared belt dust from the interior, and oiled the carriage rail. Installed a new belt, then powered the unit on. A magenta printhead error appeared on startup; reseating the printhead twice

Problem: HP DesignJet T730 wide-format plotter reporting error code 0021.01.80 (air leak). Unit would boot intermittently but faulted on every print attempt.

Solution: Power cycled the unit and manually exercised the service station gears to rule out a lockup. Traced error code 0021.01.80 to a disconnected third air hose on the magenta assembly; the hose had slipped off the nozzle fitting over time. Reseated and secured the hose to the service station, then confir

Problem: Customer in Laguna Niguel purchased a new HP DesignJet T630 24-in plotter and required on-site installation and network configuration.

Solution: Technician unboxed and assembled the HP DesignJet T630 24-in, configured network settings to Automatic (DHCP), verified connectivity, and confirmed successful test print. All packing materials were removed from site.

Problem: HP DesignJet T2300ps MFP power switch broken completely off the low-voltage power supply on the rear of the unit, leaving the plotter unable to power on.

Solution: Replaced the low-voltage power supply. Addressed a 94% initialization hang by reseating the formatter board (3 solid, 1 flashing LED sequence) and connecting the plotter directly to a wall outlet. Oiled the carriage rod, cleaned the encoder strip, loaded Tray 1, and confirmed normal operation. Forma

Problem: HP DesignJet 1055CM 36" wide-format plotter required carriage drive belt replacement. Follow-up visits addressed faulty yellow ink cartridge, yellow printhead, and subsequent ink leakage traced to the ink tube assembly.

Solution: Replaced carriage drive belt with LPS-sourced equivalent, oiled the carriage rod, and cleaned the interior. Faulty yellow ink cartridge and printhead were identified but required separate procurement. On a follow-up visit, replaced the ink tube assembly, black printhead, cyan printhead, and black in

Problem: HP DesignJet Z3200 44" (Q6719B) presented with a seized service station and worn left-side spittoon pads. The carriage had been resting off the service station caps for an extended period, leaving multiple printheads and ink cartridges with dried or depleted ink.

Solution: Replaced the service station and right-side spittoon pads. A mispositioned drop-detection sensor on the new service station caused carriage friction and a 51 error, requiring two additional disassemblies. The OEM sensor was transferred from the original unit, cleaned, and reinstalled correctly. Four

Problem: HP DesignJet T2300 PS MFP 44" reported error codes 86:10 and 42:10 (scan axis motor failure) along with starwheel lift errors. The unit had been idle for an extended period.

Solution: Installed carriage assembly, cutter, and scan axis motor from the maintenance kit; replaced starwheel motor and starwheel lifter assembly; reseated a loose scanner cover cable; installed three printheads. Carriage belt and ink tube assembly were inspected and left in service. Printhead alignment pas

Problem: HP DesignJet T795 wide-format plotter displaying error code 21.1:03 and unable to complete firmware update.

Solution: Diagnosed error 21.1:03 on HP DesignJet T795. Replaced service station (CH538-67040), printheads, and gray ink cartridge. Cleaned ink system and tested unit to confirm normal operation.

Problem: HP DesignJet Z6200 60" reported belt issues causing operational failure, with a secondary magenta output concern noted during diagnosis.

Solution: Replaced the belt and tensioner assembly (CQ111-67003) and cutter assembly (CH955-67007). Vacuumed belt debris, lubricated the carriage rod, and ran test prints to verify performance.