Plotter Repair Service History — Hollywood, CA

Problem: HP DesignJet T830 (24") producing streak bands across printed output and scans.

Solution: Calibrated the printhead and scanner to address streak banding. Firmware updated. Scanbar assembly (F9A28-67012) identified as likely required component; repair was ultimately not pursued.

Problem: HP DesignJet T2300 eMFP 44" presented with a broken carriage belt clip, service station failure at boot and in diagnostics, and an 08:04 error code.

Solution: Replaced carriage assembly and service station; oiled carriage rod. Unit locked up at 94% boot — removing printheads resolved the stall. One faulty printhead identified; print quality issues noted. Customer advised to install two replacement printheads using available spare. Potential hard drive fau

Problem: HP DesignJet T770 wide-format plotter in El Monte reported randomly powering off during operation.

Solution: Remote triage initiated; customer cancelled the service call before an on-site visit was completed. No parts replaced or repairs performed.

Problem: HP DesignJet T3500 reported error code 39.11:01.

Solution: After the customer reloaded the paper, error 39.11:01 cleared and did not recur. No on-site visit was required; the call was closed with no further issues reported.

Problem: HP DesignJet Z3200 in Pasadena, CA displaying error code 02.1.10, preventing normal plotter operation.

Solution: Diagnosed error code 02.1.10; identified potential failure points including the main board, carriage assembly, and trailing cable. The call was ultimately cancelled — the vendor covering the unit's 90-day depot warranty assumed responsibility for the repair.

Problem: Customer in El Monte, CA required a replacement for an aging HP DesignJet 500 wide-format plotter.

Solution: New HP DesignJet T130 24" procured and shipped to the customer's location via freight, replacing the HP DesignJet 500.

Problem: HP DesignJet Z5200 wide-format plotter was not booting up. Customer suspected a formatter board issue.

Solution: Diagnosed the HP DesignJet Z5200 and determined the hard drive had failed. Replaced the hard drive with a new unit that came with firmware pre-installed, then tested the plotter to confirm normal boot and operation.

Problem: HP DesignJet T120 42" wide-format plotter reported as unable to print.

Solution: Technician assessed the HP DesignJet T120 and provided a repair quote. The customer declined the quote; call closed with no work performed.

Problem: HP DesignJet Z9+ only completed two prints before displaying ink replacement warnings. The customer questioned why cartridges and printheads required replacement so soon after initial setup.

Solution: Diagnosed that the pre-installed ink was introductory-fill only, sufficient for priming lines and a few prints. Delivered and installed a full set of 300ml ink cartridges (magenta, yellow, cyan, chromatic red, photo black, matte black), an APC LE600 voltage regulator, and P2V25A universal printheads

Problem: On an HP DesignJet 430 (24"), media was striking the carriage during print runs, halting operation.

Solution: Removed all covers and inspected the drive system. Belt was intact; root cause was stiff gears and motor assembly. Applied Tri-Flow lubricant to all gears and re-tightened gear screws. Plotter returned to normal operation. Replacement gears and motor are no longer orderable for this model — if the i

Problem: HP DesignJet Z6100PS intermittently failed to recognize printheads — both installed and brand-new out of box — cycling errors across all 8 printhead slots. Unit also failed to power off from the front panel.

Solution: HP supplied a replacement printhead for diagnostic testing. Technician installed the new printhead and cleaned all electrical contacts; the plotter continued misidentifying faulty slots across positions 1–8, pointing to internal circuit board failure rather than printheads or flex cables. Due to the