Service History — Greenville, SC

Problem: Zebra ZT510 thermal printer reported roller issues traced to a loose platen gear that had begun sliding off its shaft.

Solution: Technician reattached the platen gear, secured the loose fastener, and tested print operation to confirm proper media feed and roller engagement.

Problem: HP LaserJet P4015dn producing black vertical lines down printed pages.

Solution: Diagnosed black vertical lines traced to a defective OEM toner cartridge at 70% remaining life. Replaced with a new toner cartridge, cleaned the printer, and verified image quality. Defective cartridge retained for warranty processing.

Problem: HP LaserJet M607n required maintenance kit replacement and paper feed assembly evaluation due to defective tray 2 rollers from a prior maintenance kit install.

Solution: Installed a new maintenance kit on the HP LaserJet M607n. Replaced tray 2 rollers, which were found to be sourced from two different manufacturers in the previous kit, rendering them defective. The RM2-0878-000 paper feed assembly was ultimately not needed and returned. Device passed 100+ test print

Problem: Zebra ZT410 industrial thermal printer in warehouse environment was due for its fourth scheduled preventive maintenance service.

Solution: Performed scheduled preventive maintenance on the Zebra ZT410, including full interior cleaning and functional testing to verify print quality and reliable operation.

Problem: HP Color LaserJet 500 M551 producing vertical streaks down printed pages.

Solution: Diagnosed streaking to a faulty transfer belt. Replaced the transfer belt (CF081A / CF081-67904) and tested output to confirm clean, streak-free prints.

Problem: Scheduled weekly preventive maintenance due on a fleet of Sato thermal printers at an Easley, SC facility.

Solution: Technician performed weekly PMs across multiple Sato thermal printers per the established maintenance schedule for the week ending 10/14/22.

Problem: Zebra 105SL thermal printer presented for scheduled PM51 preventive maintenance service at a Greer, SC facility.

Solution: Replaced printhead using final available unit from on-site stock. Cleared a stuck label lodged beneath the media sensor. Printer tested and confirmed operational within normal parameters.

Problem: Zebra 105SL thermal printer in Anderson, SC presented for scheduled service and inspection.

Solution: Technician performed a full service on the Zebra 105SL, including thorough cleaning of internal components. Unit tested and confirmed operating within normal parameters.

Problem: HP LaserJet M635 reported ghosting on printed output.

Solution: Technician diagnosed fuser assembly as the source of ghosting. Main kit was at 40% remaining life. Customer declined the repair quote; call closed without parts replacement.

Problem: Nova 6 DT 203 (S/N 72009033) laser printer failing to feed labels.

Solution: Technician inspected the unit and found the platen roll belt had dislodged from the platen roll gear and was damaged. Replaced the belt using customer-supplied stock. Printer resumed proper label feeding.

Problem: Sato CL-412e (with rewinder) due for quarterly preventive maintenance; drive belt showed early signs of wear on inspection.

Solution: Inspected printhead, platen roller, and drive belts and gears. Printhead and platen roller were within spec. Replaced two worn timing belts (130 MXL 6.4G). No additional issues found.

Problem: Zebra 105SL Plus thermal printer in Spartanburg, SC was not feeding labels. Inspection revealed the platen roller spinning freely due to a torn main drive belt, which had also been rubbing against internal wiring.

Solution: Replaced the torn main drive belt (P1006066, 203dpi/300dpi). Verified print quality via internal test print. Customer noted print jobs had been rerouted in third-party software and arranged reprogramming separately.

Problem: Zebra ZT230 (203 dpi, ZPL) presented without a wireless card installed, leaving the unit unable to connect to the network.

Solution: Installed a ZebraNet Internal Wireless 802.11n radio (P1058930-097A) into the ZT230. Network configuration was deferred to the customer. No additional issues identified at time of service.

Problem: HP LaserJet M609 in Duncan, SC displayed a 'Load Tray 1 Plain, Oficio' error, halting print jobs. Trays 2 and 3 were loaded with letter-size paper only.

Solution: Identified a queued print job formatted for 8.5×13" (Oficio) paper, which no installed tray could fulfill. Deleted the job, cleared the error, cleaned the printer, and confirmed normal operation.

Problem: Lexmark XM3150 MFP in Mauldin, SC displayed a 900.00 firmware error during scan and copy jobs. The unit printed blank pages while remaining stuck in a 'Scanning' state, then locked with a blue screen error.

Solution: A firmware update performed under active Lexmark warranty resolved the 900.00 error and restored full copy and scan-to-email functionality. Unit was cleaned and tested after the update confirmed normal operation.

Problem: Customer's HP LaserJet P2055 reached end of service life and required replacement with a current-model laser printer.

Solution: Delivered and installed an HP LaserJet M404dn, configured network settings with a static IP, and verified full print functionality before leaving the site.

Problem: Datamax I-Class H-4212e producing very light print output on labels; print head adjustment assembly suspected as the source of calibration failure.

Solution: Technician inspected the I-Class H-4212e and confirmed that all print head adjustment attempts produced no improvement, pointing to a fault in the print head adjustment assembly. Customer declined off-site repair; a third-party vendor was subsequently contacted. Call closed without confirmed resolut

Problem: HP LaserJet 4200N submitted for pre-sale evaluation — toner leaking on the left side and exterior case required deep cleaning before refurbishment.

Solution: Inspected, cleaned interior and exterior, replaced worn paper-feed rollers with serviceable used rollers, flagged case for degreaser treatment, noted leaking toner cartridge for replacement, and reset the maintenance page count. Unit cleared for refurbished or parts use.

Problem: Zebra GX430t thermal printer was due for scheduled preventive maintenance (visit 4 of 9 in a recurring service plan).

Solution: Performed preventive maintenance on the Zebra GX430t at 1,589,217 inches of print history. Cleaned internal components and reconfigured printer settings to manufacturer specifications.

Problem: Zebra Z4M Plus thermal printer presented during a scheduled preventive maintenance visit (one of seven units serviced) and required platen roller replacement.

Solution: Technician performed full PM on the Zebra Z4M Plus (300 dpi, 10 ips, 4" print width). Platen roller (part #77023M) was sourced and replaced. Printer was cleaned and tested to confirm proper operation.

Problem: HP LaserJet Pro 500 Color MFP M570dn reported image quality issues affecting print output.

Solution: Diagnosed image defects as a failed transfer belt. Installed a replacement Transfer Belt Kit (CC468-67927), which included a new transfer belt and secondary transfer roller. Also supplied a compatible black toner cartridge (TG95P6560). Unit cleaned and tested after repair.

Problem: Sato CL408 thermal label printer required an ethernet card upgrade to enable network connectivity.

Solution: Investigation confirmed no ethernet card is compatible with the CL408 — the GL408E card does not fit, and Sato support verified the interface option is discontinued with no available part number. A replacement Sato CL4NX Plus (203 DPI, thermal transfer, USB, ethernet, serial, Bluetooth) was quoted a

Problem: Zebra ZT410 thermal printer reported image defects and print quality issues at a Travelers Rest, SC location.

Solution: Inspected the ZT410, adjusted toggle settings to prevent labels from wrapping around the platen roller, and trained two staff members on proper printer maintenance procedures. Print quality confirmed normal after testing.

Problem: Zebra ZD620 thermal printer presented with a coffee spill affecting the control panel and surrounding components, rendering the unit unreliable for continued service.

Solution: Technician inspected the ZD620 and removed the left-side media holder. Due to liquid contamination across the control panel PCBA and associated components, the unit was deemed uneconomical to repair and designated for mechanical parts use only.

Problem: HP Color LaserJet 3800 required a fuser unit replacement.

Solution: Fuser assembly sourced and supplied for the HP Color LaserJet 3800. Replacement part delivered to the customer's location.

Problem: Lexmark T650n reporting error code 920.06 fuser service error on startup.

Solution: Replaced the fuser; error persisted across multiple power cycles. Diagnosed the LVPS (part 40X4355) as the root cause — not supplying proper voltage to the fuser. Replacement LVPS initially appeared DOA but required a USA voltage setting adjustment to become operational, after which the printer retu

Problem: Zebra ZM400 thermal printer in Piedmont, SC was due for preventive maintenance, with accumulated dirt and dust affecting print quality.

Solution: Performed PM service on the Zebra ZM400. Used an air nozzle attachment on the customer's air hose to thoroughly blow out internal dirt and dust buildup. Verified output with test prints following cleaning.

Problem: A Zebra ZM400 thermal printer in Fountain Inn, SC was due for preventive maintenance, with accumulated dust and debris affecting print quality.

Solution: Performed full PM on the Zebra ZM400. Cleaned interior of all dust buildup, cleaned the platen roller, and inspected the printhead. Unit tested within spec at close of service.

Problem: Zebra ZT510 thermal printer throwing a persistent media-out error; full calibration failing on both media and ribbon sensors.

Solution: Replaced mainboard (P1083347-013), media guide with thumb screw (P1006106), and platen roller (P1083347-012), which showed a cut. Cleaned the printhead. Resolved sensor failures by temporarily setting media detection to 'feed on head close' and switching to direct thermal to recover ribbon sensor ca

Problem: HP LaserJet M3035 MFP reported jamming and multi-page feeding through the ADF.

Solution: Replaced the ADF assembly to resolve multi-page feed jams. Diagnosed the stapler unit as having a faulty staple cartridge; a replacement cartridge was sourced and shipped to the customer separately.

Problem: Zebra ZT410 thermal printer in Fountain Inn, SC required network configuration and setup.

Solution: On inspection, the unit was identified as a UPS-provisioned device restricted to UPS-authorized service only. The call was cancelled; standard third-party configuration was not applicable.

Problem: Customer in Spartanburg, SC required a new HP LaserJet M635h MFP with fax capability added via hardware expansion card.

Solution: Sourced and shipped an HP LaserJet M635h MFP and a compatible fax card. A technician was dispatched on-site to install the fax card upon delivery.

Problem: HP LaserJet P2035 emitting a squeaking noise traced to the rear of the unit, with the fuser suspected as the source.

Solution: Replaced the fuser (RM1-6405), Tray 2 pickup roller (RM1-6414), and Tray 2 separation pad (RM1-6397). Cleaned and tested the printer; squeaking noise eliminated.

Problem: HP LaserJet 4000 series laser printer would not print and could not produce a usage/configuration page.

Solution: Inspection revealed multiple failures on this 1998-manufactured unit: a broken toner-to-laser shutter actuator preventing image formation, a broken exit-assembly actuator, and broken top-cover door hinges. Given the extent of structural deterioration, the customer opted to replace the printer rather

Problem: Zebra 105SL reported dragging during print cycles, producing horizontal black lines across output. Root cause could not be determined during inspection.

Solution: Technician performed diagnostics on the Zebra 105SL but was unable to isolate the cause of the print drag and horizontal line defect. Unit was designated for parts use.

Problem: Sato CL412e thermal printer producing light, faded output. Darkness and speed adjustments in software had no effect on print quality.

Solution: Technician reseated the original print head with no improvement, then confirmed via diagnostics that the installed head was a compatible (non-OEM) unit, slightly oversized, causing inconsistent platen contact. Replaced with OEM print head (part #GH000771A, 305 DPI). Residual voids remained; bracket

Problem: Zebra GX430T thermal printer was due for scheduled preventive maintenance at a Gaffney, SC facility.

Solution: Technician performed PM service on the Zebra GX430T, thoroughly cleaning the interior and testing print output to confirm proper operation.

Problem: Customer ordered a new HP LaserJet M402dn with an additional paper tray for deployment at a Columbia office location.

Solution: Received the HP LaserJet M402dn, unboxed and tested the unit, then delivered it along with the extra paper tray to the designated administrative building for hand delivery to the end-use office.

Problem: Zebra ZT410 thermal printer in Seneca, SC presented with a failed peeler assembly requiring replacement.

Solution: Technician diagnosed and quoted replacement of the peeler assembly (part P1058930-098) on the Zebra ZT410. Customer operates eight Zebra printers on-site, with six running continuously in production and two held as spares.

Problem: HP LaserJet 8150dn displaying a persistent 13.20 paper jam error at the left door, with no physical jam present.

Solution: Replaced Switch/Sensor (RG5-1846-000CN) and face-down delivery assembly (RG5-1874); fuser also swapped with a known-working unit. Error persisted through all interventions. Customer advised to replace the printer based on repair cost versus unit value.

Problem: Muratec MFX C2700 color laser MFP in Piedmont, SC would not print and was displaying a 134 Error; a loose LED cable and a paper jam under the transfer belt were identified as contributing factors.

Solution: Reseated the loose LED cable and performed a cold reset. Removed jammed media from beneath the transfer belt. Unit was over six years old with no available service manual or OEM parts; replacement was advised over repair.

Problem: Zebra QLN420 mobile thermal printer reported platen roller wear requiring PM31 preventive maintenance and grip adjustment.

Solution: Replaced the platen roller assembly on the QLN420 using kit P1050667-008 (platen/gear with holder, linered). Unit tested and confirmed operational after repair.

Problem: Zebra 105SL Plus reported feeding labels irregularly — labels were jamming and being consumed by the printer rather than advancing properly through the media path.

Solution: Technician cleared stuck labels from the media path, then adjusted the tear-off bracket to correct label advancement. Printer tested and confirmed operational.

Problem: HP Color LaserJet MFP M477fdn displayed a 59.F0 error, indicating a motor control fault requiring firmware-level intervention.

Solution: Technician updated the DCC firmware on the HP CLJ MFP M477fdn, advancing the controller number from 14500 to 15101. Unit was cleaned throughout, tested, and confirmed fully operational upon return to the customer site.

Problem: Zebra 105SL Plus thermal printer in Spartanburg, SC required cleaning, adjustment, and printhead inspection.

Solution: Technician cleaned and adjusted the unit, then replaced the printhead using customer-supplied stock. Print quality was verified through post-repair testing.

Problem: Zebra 105SL thermal printer presented for PM7 preventive maintenance service, including label position calibration.

Solution: Performed PM7 preventive maintenance on the Zebra 105SL (model 10500-3001-2000). Adjusted label position settings and verified print alignment through test output. Unit passed close-margin testing.

Problem: Lexmark MS610 laser printer in Gaffney, SC reported a recurring paper jam, submitted as a callback follow-up to a prior service visit.

Solution: The technician contacted the customer to verify printer status. All users confirmed the unit was operating normally. No further issues were reported, and the call was closed after a follow-up monitoring period.

Problem: Zebra 105SL Plus thermal printer in Travelers Rest, SC required preventive maintenance with replacement of the media guide, platen roller, and 300 DPI printhead.

Solution: Performed PM service on Zebra 105SL Plus. Replaced media guide (P1006106), platen roller (G41011M), and 300 DPI printhead (P1053360-019). All parts installed and unit tested to confirm proper operation.

Problem: HP Designjet 500 42" (C7770B) displayed replace-printhead error messages; all four installed printheads were generating different fault codes.

Solution: Replaced all four printheads (C4810A, C4811A, C4812A, C4813A), cleaned and lubricated the plotter. Printhead alignment passed on the second attempt. Internal print test confirmed output quality. Diagnosed a non-standard dual-USB daisy-chain network configuration and advised the customer on correct s

Problem: Sato B-EX6T1-T Tag thermal printer presented ribbon creasing during the fourth scheduled preventive maintenance visit.

Solution: Performed fourth-cycle PM on the Sato B-EX6T1-T Tag printer. Consulted Sato technical support regarding persistent ribbon creasing; root cause traced to off-brand ribbon stock. Completed full interior cleaning.