Service History — Atlanta, GA

Problem: HP LaserJet M507 in Duluth, GA reported recurring paper jams affecting normal print operations.

Solution: Replaced pickup roller assemblies and separation roller assemblies in trays 2 and 3. Cleaned internal paper path and tested printer to confirm jam-free operation.

Problem: Customer in Duluth, GA required a new HP LaserJet Pro M501dn laser printer with an additional paper tray.

Solution: Sourced and shipped an HP LaserJet Pro M501dn with an extra paper tray to the requested location; unit was delivered and received.

Problem: Zebra ZT420 thermal printer reported degraded print quality, traced to a worn printhead and platen roller requiring replacement.

Solution: Technician cleaned, calibrated, and tested the ZT420. Printhead (P1058930-013) and platen roller (P1058930-081) were ordered and installed at two production stations. Unit tested confirmed after parts replacement.

Problem: Zebra ZT510 industrial thermal printer reported printhead failure requiring replacement parts.

Solution: Three replacement printheads were ordered and shipped directly to the customer's Marietta, GA location. Parts were on backorder at time of order with no confirmed ETA.

Problem: Lexmark CX522ade displaying a persistent 'door open' error. The right-side cover's sensor flag spring was missing, and a piece of paper had been used to rig the sensor.

Solution: Replaced the right-side cover assembly (part 40X7823) and removed the makeshift paper sensor bypass. Sensor flag restored to proper operation.

Problem: Zebra 105SL (model 10500-3001-2000) presented at PM 40 interval requiring printhead replacement and a failed head close lever flag.

Solution: Replaced the printhead (G32433M) and pivot bar kit (G32034M), cleaned the unit, and tested print output. Two defective 300 DPI printheads were identified — one producing faded print, the other exhibiting multiple dropout lines — and returned to the vendor for replacement.

Problem: Nine Zebra ZM400 thermal printers at a high-volume production facility were due for scheduled preventive maintenance, but sustained production schedules repeatedly prevented access.

Solution: Preventive maintenance on the ZM400 units was deferred multiple times due to continuous production operation from 6 AM–5:30 PM daily. Maintenance was rescheduled for early July when a production slowdown was anticipated.

Problem: Lexmark CS725dte reporting error 121.74A (Service Fuser Error); error persisted after power cycle, returning after printing only a few pages. Waste toner bottle indicated Nearly Full.

Solution: Replaced fuser assembly (41X0252) and waste toner bottle (74C0W00). Fuser counter reset prior to replacement. Verified no additional issues after parts installation.

Problem: HP Color LaserJet 553x presenting image quality issues at approximately 277,884 page count.

Solution: Inspection revealed fuser assembly at 10% life remaining, ITU unit causing streaks, and worn pickup/separation rollers on trays 2 and 3. Customer declined repair after receiving parts quote.

Problem: Zebra ZT410 (203 dpi) in Duluth, GA would not print; the media rewinder was completely unresponsive at startup.

Solution: Technician inspected connectors and consulted Zebra support; root cause could not be isolated to the media rewinder (P1058930-058) or main logic board (P1058930-402) independently. Both components were replaced under warranty sequentially. After the logic board swap, the rewinder exit option was not

Problem: HP LaserJet M608 in Alpharetta, GA reported repeated paper jams, later identified as a 13.B4.FF jam error.

Solution: Technician found the fuser locked up; cleaned and inspected the machine, then installed an HP fuser maintenance kit (L0H24-67901). With the 13.B4.FF code persisting, the transfer assembly (RM2-1248) was replaced next, clearing the error and restoring normal operation.

Problem: HP LaserJet M402 (Troy configuration) producing checks with missing routing numbers and dollar amounts; all other printed content rendering correctly.

Solution: Traced incomplete check output to a specified paper type setting in the print driver, introduced during a prior fuser replacement visit. Reverting the driver paper type to undefined restored full print output across all check fields.

Problem: HP LaserJet 4200 reported with suspected media feed issues, indicating likely worn maintenance kit components across multiple paper trays.

Solution: Installed MP pickup roller, MP separation pad, Tray 2 and Tray 3 pickup rollers, and four Tray 2 and Tray 3 feed rollers. Cleaned and tested the printer to verify reliable paper feed across all trays.

Problem: HP LaserJet 500 MFP M525 reported repeated paper jams originating from Trays 3 and 4, along with ghost image defects on output.

Solution: Technician cleaned the machine, replaced the CF116-67903 Fuser Maintenance Kit and both RM1-6313 pickup rollers and RM1-6303 separation pads for Trays 3 and 4. Unit tested and confirmed operational.

Problem: HP LaserJet E50145dn reported making noise and throwing jam errors during normal operation.

Solution: Installed fuser maintenance kit, cleaned the machine, and identified tray 2 rear guide not pushed forward as the source of jams and noise. Guide was corrected and the customer was instructed on proper tray alignment. Network, fax, and power cables were organized and secured.

Problem: Brother MFC-L8900CDW displaying 'Slide The Green Tab On Drum Unit' error. Color output exhibited streaking, and the magenta drum unit arrived scratched from the supplier.

Solution: Swapped drum units between two machines to isolate the fault. Cleaned the printer, then replaced the DR-431CL drum unit, BU-330CL belt unit, WT-320CL waste toner box, LR2241001 fuser, and D00LF5001 PF Kit 1. Defective magenta drum was returned under warranty; replacement drum installed and output te

Problem: HP DesignJet T2600 buffering for hours before attempting a large print job from Microsoft Project, with multiple error 80 codes in the log indicating system or firmware errors.

Solution: Reviewed error log showing repeated error 80 entries — analogous to 49 errors on laser printers — pointing to a corrupt or malformed print job. Coordinated with HP warranty support; HP dispatched their own technician and confirmed the root cause was a bad print job.

Problem: Zebra 140Xi3 (140-7A1-00000) presented with lines in print output. Diagnostic confirmed a failing printhead, ribbon sensor failure, and a suspect main board.

Solution: Performed preventive maintenance as part of a multi-unit PM cycle. Ribbon sensor failure rendered the unit operational only in direct thermal mode. Replacement of the main board and ribbon sensor was deemed cost-prohibitive on a fourth-generation unit; a 203 DPI printhead (MG G48000M) was identified

Problem: HP LaserJet 4250 reported persistent paper jams originating from Tray 2.

Solution: Replaced the Tray 2 pickup roller and both Tray 2 feed rollers. Cleaned the paper path and tested the printer to confirm jam-free operation.

Problem: A Zebra 105SL Plus thermal printer in Norcross, GA was producing creased media output, indicating mechanical wear requiring a PM38 preventive maintenance service.

Solution: Technician performed a PM38 preventive maintenance service on the Zebra 105SL Plus, resolving the media creasing issue. Unit was tested and confirmed operating within spec.

Problem: Zebra GX430t thermal printer in Douglasville, GA was due for scheduled preventive maintenance as part of a multi-unit service agreement.

Solution: Performed preventive maintenance on Zebra GX430t at 534,496 inches of use. Cleaned internal components and verified printer configuration.

Problem: Zebra ZT510 (ZT51042-T010000Z) reported with a locked ribbon take-up spindle, preventing normal ribbon advance during thermal transfer printing.

Solution: Technician initially freed the locked ribbon take-up spindle manually; however, the spindle re-locked on a follow-up visit and could not be released. Part G41150M ribbon take-up spindle was sourced and replaced. Unit tested and returned to service.

Problem: Zebra 110Xi3 Plus thermal printer reported a ribbon error and required a power supply evaluation during a preventive maintenance visit in McDonough, GA.

Solution: Technician replaced the faulty power supply (G33050M) and adjusted the printhead. Unit was tested and confirmed operational with ribbon error cleared.

Problem: Customer operating a mixed fleet of 3 Sato industrial printers and 7 Zebra GX420 clamshell printers reported rendering 5 units unusable within a single year and sought guidance on connectivity, driver conflicts, and whether better-suited hardware existed.

Solution: On-site consultation identified USB driver conflicts — Windows limiting driver copies to 2 per option — combined with a USB splitter on a single-port tablet, Windows sleep mode disrupting USB connections, and up to 10 users rotating across mobile carts without devices staying paired to fixed station

Problem: Zebra ZT610 industrial thermal printer was due for scheduled preventive maintenance as part of a multi-unit service visit.

Solution: Technician performed full preventive maintenance on the ZT610, including internal cleaning and functional testing to confirm proper operation.

Problem: HP LaserJet MFP M521 in Kennesaw, GA experiencing repeated document feeder jams; customer also reported output copies running excessively hot.

Solution: Replaced worn ADF roller assembly. With 8,000 scans logged, rollers were significantly degraded. ADF feed tested and confirmed operational. High-volume workflows may warrant upgrading to the M528 or M630 series.

Problem: Zebra 105SL thermal label printer was due for scheduled quarterly preventive maintenance as part of an ongoing PM program.

Solution: Performed quarterly PM on Zebra 105SL: inspected drive belts and gears — found in good condition — then cleaned the printhead and platen roller and verified print quality.

Problem: Zebra 220Xi4 (203 dpi) in Conyers, GA was not feeding labels properly.

Solution: Inspected belt, platen roller, and printhead. Replaced the main drive belt (P1006066). Verified proper label feed and confirmed print quality before completing the call.

Problem: Zebra 110Xi4 thermal printer in Peachtree City reported label sensor issues, causing unreliable media detection.

Solution: Technician cleaned the label sensors and overall unit, then adjusted the media sensor. Printer was tested and confirmed operational before closing the call.

Problem: HP Color LaserJet Enterprise MFP M680 producing dark marks on printed output across two of four color channels.

Solution: Replaced the transfer kit (CE249A) on the HP M680. Cleaned internal transfer components and tested print quality to confirm defect was resolved.

Problem: HP DesignJet T2300 wide-format plotter due for bi-annual preventative maintenance service.

Solution: Technician cleaned the HP DesignJet T2300, inspected the carriage belt, and verified print quality. Ink levels and printhead statuses were reviewed and confirmed within acceptable parameters.

Problem: HP LaserJet 4015 displaying error code 59.20 and refusing to print.

Solution: Technician attempted to replace the motor driving the toner assembly, but the replacement motor was approximately one inch deeper than the OEM spec, causing loud screeching and paper jams on installation. The original motor was reinstalled. Testing with a fuser from on-site stock eliminated the 59.2

Problem: HP LaserJet M608 in Duluth, GA required network reconfiguration after replacing an existing printer on the local network.

Solution: Technician coordinated with the customer's IT department to obtain correct network addressing and updated the printer's IP configuration. The M608 returned to full network functionality.

Problem: Zebra ZM400 thermal printer producing faint print output, causing barcode scan failures.

Solution: Technician adjusted printhead pressure and performed a thorough cleaning. Print density restored and barcode scanning verified functional.

Problem: HP Color LaserJet MFP M476 brought in for general maintenance, with loose toner leakage present inside the unit and customer-noted noise from remanufactured toner cartridges.

Solution: Replaced all four toner cartridges from customer-supplied stock. Cleaned leaked loose toner from the printer interior, feed trays, and ADF rollers. Cleaned scanner glass, ran self-cleaning cycle, and performed calibration. Advised customer that noise from remanufactured cartridges during self-cleani

Problem: Lexmark X658de laser printer in Douglasville, GA was completely non-functional after a storm, with no power reaching the unit.

Solution: Technician diagnosed a failed power supply (part #40X2072) as the cause. Replacement power supply was installed on the X658de; printer returned to operational status. Photoconductor 3-pack (72K0Q00) was also identified as needed during the service visit.

Problem: Zebra 110Xi4 thermal printer not communicating with host computer; unit had been relocated from its original deployment environment and was no longer connected to its paired PC.

Solution: Technician tested communication via USB and confirmed basic connectivity. A USB-to-RS232 adapter from a separate project was substituted, but drivers failed to load and the RS232 end became hot within seconds — consistent with a faulty adapter rather than a printer fault. Verified the unit carries a

Problem: Zebra 105SL thermal label printer due for quarterly preventive maintenance as part of an ongoing multi-unit PM schedule.

Solution: Performed quarterly PM on Zebra 105SL; verified print quality, inspected drive belt and gears — all components within spec.

Problem: HP LaserJet M521dn reporting a 52 Scanner Error on every print attempt, including engine test pages.

Solution: Reseated formatter connections and cycled power; error persisted. Replaced the laser/scanner assembly (RM1-6322) and verified all print functions returned to normal operation.

Problem: Lexmark MS821n laser printer needed as a replacement unit for a facility that lost equipment due to flood damage.

Solution: Sourced and delivered a new Lexmark MS821n (S/N 40644291130N8) to the corporate office as a temporary staging location while a permanent facility was being established.

Problem: Zebra 170xiII thermal printer reported ribbon issues — the end user had to keep the printer door open during print jobs to manage excess ribbon feeding out as labels printed.

Solution: Technician diagnosed a likely ribbon take-up spool winding issue on the Zebra 170xiII. Pickup and bench repair were coordinated but never confirmed. Call closed after no response; unit may have been retired.

Problem: Zebra ZT510 industrial label printer presented with label adhesive buildup on the front cover and a loose toggle bar handle screw, identified during scheduled quarterly preventive maintenance.

Solution: Removed label adhesive buildup from the front cover and tightened the toggle bar handle screw. Print quality verified as good following service. Customer advised to monitor the screw for recurring looseness.

Problem: HP Color LaserJet MFP M681 remained stuck in the initializing state at power-on and displayed recurring 54 errors with blue streaking in printed output.

Solution: Technician cleaned the printer, replaced two non-OEM toner cartridges including a depleted cyan unit, then performed an erase/unlock, format, half-erase, and firmware reload. A follow-up visit confirmed no hard-drive failure codes or 54 errors remained.

Problem: HP Color LaserJet M452dn in Tucker, GA was producing image quality defects. Investigation revealed third-party compatible toner cartridges were installed rather than the OEM cartridges the customer had purchased.

Solution: Removed all non-OEM compatible toner cartridges. Installed a full set of genuine HP toner cartridges, cleaned the printer, and verified image quality. Device was returned to service with output confirmed normal.

Problem: HP DesignJet T795 displayed an 08:11 error. The progress bar hung at 1% during boot before the error appeared; power cycling and removing all supplies had no effect.

Solution: Replaced the formatter with hard drive (part# CN727-67042). Cleaned and tested the plotter; the 08:11 error was resolved and the unit returned to normal operation.

Problem: Datamax I-4212e thermal printer at a Duluth, GA facility was due for scheduled preventive maintenance.

Solution: Technician performed a full PM service on the Datamax I-4212e, including interior cleaning of print mechanism components per PM cycle standards.

Problem: HP LaserJet Enterprise MFP M630 displayed error 99.09.67 — Not Bootable. Diagnosis indicated a crashed hard drive; a partial disk wipe attempt did not resolve the condition.

Solution: Replaced the HDD, ADF kit, Tray 2 pickup assembly, and fuser maintenance kit (noise and end-of-life message present). Swapped feed rollers in trays 2 and 3. Cleaned the machine and verified full functionality through post-repair testing.

Problem: Lexmark T654 laser printer reported needing a fuser replacement.

Solution: The customer had replaced the fuser prior to the technician's arrival but left the gate assembly out of the printer. The technician reinstalled the gate assembly, cleaned the unit, and tested for proper operation.

Problem: Zebra ZT510 thermal printer reported calibration issues affecting label detection and print registration.

Solution: Technician adjusted media and ribbon sensors and verified printer settings. Unit is equipped with a cutter but configured for tear-off use. A wood shim on the take-up spindle was noted as a potential cause of ribbon creasing.

Problem: Zebra 105SL Plus thermal printer reported multiple issues requiring a return service visit.

Solution: Technician diagnosed multiple faults on the Zebra 105SL Plus. Replaced the media sensor kit and tested the unit to confirm proper operation.