Service History — Arlington, VA — Page 3

Problem: Zebra ZT510 industrial thermal printer in Falls Church, VA was due for its scheduled quarterly preventive maintenance visit.

Solution: Technician paused the active print job and cleaned ink buildup from the printhead area, inspected the drive belt and gear assembly, and cleared accumulated paper dust. Print quality was confirmed good. No mechanical issues found.

Problem: Lexmark MS810dn displaying a 'Needs Maintenance' error and refusing to print.

Solution: Replaced the fuser, Tray 1 and Tray 2 pickup roller assemblies, and Tray 1 and Tray 2 separation roller assemblies. Printer returned to operation; a separate display panel flickering issue was documented and quoted but not authorized for repair.

Problem: A Zebra 105SL Plus thermal printer reached PM15 status and required a platen roller replacement to restore reliable print quality.

Solution: Technician replaced the platen roller (CG G41011M) and verified no additional issues were present on the unit.

Problem: HP Color LaserJet M651 producing streaks and lines across printed pages.

Solution: Cleaned the machine and identified the intermediate transfer belt (ITB) as the source of streaking. Noted worn feed rollers in Trays 2 and 3. Returned to replace the ITB kit (CE249A); tested the printer and confirmed clean output.

Problem: Lexmark MS821 laser printer in College Park, MD displaying a maintenance error.

Solution: Installed a 41X2233 maintenance kit. Error message cleared and printer tested operational.

Problem: Two Zebra ZT510 thermal printers displayed persistent 'Ribbon Out / Media Out' errors. Two Sato M10e units exhibited void defects through printed images and required printhead and platen roller service.

Solution: Both Zebra ZT510 units were transported to the shop for further diagnosis after the 'Ribbon Out / Media Out' errors could not be resolved on-site. On the first Sato M10e, the printhead was cleaned, reducing but not eliminating image voids; a replacement printhead and platen roller were quoted. On th

Problem: An HP LaserJet 4250 in Annapolis, MD was not being recognized by the connected computer, preventing the user from printing.

Solution: Diagnostics pointed to a faulty port on the customer's side. Once the bad port was identified and addressed, the printer was detected and printing resumed normally.

Problem: HP LaserJet M605 would not duplex when printing from a workstation.

Solution: Confirmed the printer itself was functioning by running duplex internal test prints. Updated firmware and installed a new driver downloaded directly from HP; duplex printing from Word was restored. Two rollers were also replaced. The root cause was traced to a driver/software configuration issue on

Problem: Zebra ZT610 thermal printer in Manassas, VA reported producing off-center print output on customer labels.

Solution: Technician compared internal test prints from multiple ZT610 units — all aligned correctly — isolating the issue to the label template in SAP, which was mapped to the printer's device ID. Hardware was confirmed functional; root cause was a misconfigured software template, not a mechanical or print-e

Problem: HP Color LaserJet CP4525 reporting error code 59.F0, indicating an intermediate transfer belt (ITB) motor or rotation fault.

Solution: Inspected the ITB, confirming approximately 50% remaining life. Cleaned the machine and cleared the error. No replacement required at this time; ITB replacement recommended if the 59.F0 code recurs.

Problem: A Zebra ZM440 thermal printer in Leesburg was due for a scheduled preventive maintenance service.

Solution: Technician performed a full preventive maintenance on the Zebra ZM440, including thorough cleaning and functional testing. Print quality and operation were verified before closeout.

Problem: HP Color LaserJet CM6040 MFP required transfer belt installation; fuser was also found at 8% remaining life during servicing.

Solution: Technician installed the customer-supplied transfer belt, then identified the fuser at critical end-of-life and installed an on-site replacement fuser with customer authorization. ADF feed roller kit and separation pad showed wear but remained functional. Machine was cleaned and tested; supply statu

Problem: A Zebra GX430t thermal printer in Gaithersburg, MD was due for scheduled preventive maintenance as part of an ongoing multi-unit service agreement.

Solution: Technician performed preventive maintenance on the Zebra GX430t, cleaning internal components and reconfiguring the printer to manufacturer specifications.

Problem: HP LaserJet 500 M521dn ADF failing to pick up paper, preventing document scanning and copying from the automatic document feeder.

Solution: Cleaned the machine, then replaced the ADF roller kit (A8P79-65001), ADF separation pad assembly (A8P79-65010), Tray 2 pickup roller assembly (RM1-0731-050), and Tray 2 separation pad assembly (RM1-6303-000). ADF paper feed confirmed operational after testing.

Problem: Zebra ZT510 industrial thermal printer due for its third quarterly preventive maintenance visit.

Solution: Technician removed label adhesive buildup from the platen roller and front cover, then cleaned the printhead. Print quality verified and no additional issues found.

Problem: Customer purchased a new HP LaserJet Enterprise M635h and required network setup, fax accessory installation, and full functionality testing.

Solution: Installed the analog fax accessory on the HP LaserJet Enterprise M635h, configured fax operation on the copier line, coordinated with on-site IT to integrate the printer into the network, then verified print, copy, and fax functions.

Problem: HP LaserJet M404dn would not print, displaying an error prompting paper to be loaded in the tray despite paper being present.

Solution: Replaced the Tray 3 pickup roller assembly and Tray 3 separation roller assembly. Tray 2 rollers were inspected and found in acceptable condition; no replacement required. Printer cleaned and tested.

Problem: Zebra Z4M Plus thermal printer producing lines through barcodes, indicating printhead degradation.

Solution: Technician cleaned the printhead on initial visit; issue persisted, confirming printhead failure. On follow-up visit, the printhead was replaced and output tested, restoring clean, line-free barcode printing.

Problem: Xerox Phaser 4622 laser printer reported making unusual noises with a broken latch in the paper tray.

Solution: Inspection revealed the tray pick-up assembly lock/release mechanism had fallen from the bottom-right tray guide rail. Unit was disassembled to identify the required part — a right cassette guide (JC61-03848A), not listed in the service manual. A fuser maintenance kit (ML-PMK65K) was also identified

Problem: HP Color LaserJet 5550dtn producing copies with multiple color lines across the page.

Solution: Diagnosed lines to a failing transfer belt. Replaced the transfer kit (C9734B) and two toner cartridges, then performed short and long calibrations to restore accurate color output.

Problem: Lexmark MS610 laser printer reported recurring paper jams across multiple feed trays.

Solution: Technician cleaned all internal feed components and paper path areas; printer passed post-service testing. Noted that pick tires and separation roller assemblies for Trays 1, 2, and 3 may require replacement if jamming recurs.

Problem: Zebra GX430T thermal printer presented for scheduled preventive maintenance as part of a large fleet deployment in Manassas, VA.

Solution: Technician performed PM service on the GX430T, including a full internal cleaning and functional test to confirm proper operation.

Problem: Zebra 105SL (model 10500-2001-0070) in Washington, DC was due for a scheduled preventive maintenance visit as part of an ongoing service cycle.

Solution: Technician performed scheduled PM service on the Zebra 105SL, completing a full cleaning of internal components and functional testing to verify proper operation before closing the call.

Problem: HP LaserJet P3005dn reporting jam errors with false misfeeds at the tray, despite no actual paper jams being reproducible during testing.

Solution: Technician ran over 100 test prints confirming no true jams. Toner cartridge was found completely depleted — likely causing the printer to pause and misreport feed errors. Replacement toner cartridge installed; follow-up confirmed no further issues.

Problem: Lexmark MB3442adw MFP presented with a fuser not reaching operating temperature, causing blank page output. Maintenance kit components including fuser and rollers were on site awaiting installation.

Solution: Technician reseated components, cleaned all contacts, installed the fuser core and rollers from the on-site maintenance kit, then tested the printer to confirm proper fuser temperature and clean print output.

Problem: Zebra 105SL continuously fed labels immediately upon power-on, with neither the ribbon sensor nor the media sensor responding to input.

Solution: Technician diagnosed an unresponsive main board as the root cause. Replaced the main board (34901-020M), then calibrated the printer, cleaned internal components, and verified correct operation.

Problem: Xerox Phaser 4622 reported a faulty paper sensing arm and knocking noise traced to the Tray 2 lift mechanism, with the tray failing to raise properly.

Solution: Unit was brought in for bench repair. Replaced Tray 2 lift motor (007N01665), Tray 2 lift gear (019N01081), tray lifter gear assembly, and paper sensing arm; tray lift function restored. Potential secondary failures flagged: clutch reg (005N01128), feed drive (007N01662), pickup drive (007N01658), r

Problem: Zebra 140Xi3 thermal printer reported with a damaged platen roller — the roller surface was cut and degraded, preventing proper media feed and print contact.

Solution: Inspected the platen roller on the Zebra 140Xi3 and confirmed physical damage requiring full replacement. Installed a new G40038M platen roller and tested the unit to verify correct media handling and print quality.

Problem: HP LaserJet M806 powered up to a ready state but would not print. The print queue showed the device offline; other M806 units on the same AS/400 system were unaffected.

Solution: Technician reseated the formatter, swapped the patch cable, and moved the connection to a new router port. After power cycling, the printer appeared in the web portal and the backlogged print jobs cleared without further issue.

Problem: HP LaserJet M603n repeatedly throwing a 49 error, even when disconnected from the network.

Solution: Performed a partial disk clean via the printer menu to clear the persistent 49 error. Replaced two tray 2/3 pickup rollers and four tray 2/3 separation rollers, then cleaned and tested the unit.

Problem: HP LaserJet M527dnm laser printer required new installation at a College Park, MD facility.

Solution: Technician delivered, configured, and tested the HP LaserJet M527dnm (fourth of four units). Printer was installed and verified operational in the Kitchen Department.

Problem: Zebra GX430t thermal label printer in Gaithersburg, MD due for its third scheduled preventive maintenance visit.

Solution: Performed scheduled PM on Zebra GX430t at 542,416 inches of use. Cleaned internal components and verified printer configuration.

Problem: Zebra ZT510 (203 dpi) at a Rockville, MD facility was due for scheduled quarterly preventive maintenance as part of a multi-unit PM cycle.

Solution: Performed quarterly PM on the Zebra ZT510 (203 dpi, model ZT51042-T010000Z). Cleaned internal components, adjusted media tilt, and tested print output to confirm proper operation.

Problem: Zebra ZQ520 mobile thermal printer required printhead and platen roller replacement as part of a multi-unit servicing batch.

Solution: Replaced the printhead and platen roller on the ZQ520. The control panel was also swapped from a donor ZQ520 unit with a separate mainboard fault. Printer was tested and confirmed operational after repairs.

Problem: HP Color LaserJet Flow MFP M880 jamming at the fuser from all trays and the MP tray, with no image on paper or transfer belt, and a reported scanner issue.

Solution: Diagnosed a registration problem causing multi-tray fuser jams. Replaced the secondary transfer assembly (RM2-6856 / C1P70-67901) and right door assembly (RM1-9640), transferring two sub-assemblies to the new door. A persistent 13.FF.FF error was traced to door sensor flags; reverting to the origina

Problem: Zebra GX430t thermal label printer due for scheduled preventive maintenance (visit 6 of 6).

Solution: Performed full PM on the GX430t: cleaned and inspected the printhead, feed rollers, and cutter assembly; cleared cutter gum buildup; verified and corrected device configuration.

Problem: HP DesignJet T830 MFP plotter repeatedly experiencing carriage belt disengagement, requiring a callback visit after the belt popped loose again following an initial repair attempt.

Solution: Replaced the carriage belt and right belt pulley assembly (Part# F9A30-67068) with a new carriage belt kit. Cleaned and tested the plotter, confirming proper belt seating and carriage movement before returning the unit to service.

Problem: A Godex TR200i thermal label printer required installation, configuration, and on-site setup at a McLean, VA location.

Solution: Technician received the Godex TR200i (Model FK-GX001-05), completed pre-delivery programming, and performed on-site installation and functional testing. Additional static cling label rolls and ribbon supplies were fulfilled across follow-up requests. The customer confirmed purchase and the call was

Problem: HP LaserJet 600 M603 reported a persistent paper jam error originating near the MP tray and paper feed assembly.

Solution: Disassembled printer to access the paper feed assembly behind the MP tray. Removed torn paper, cleaned rollers, and replaced worn Tray 2 pickup rollers (2× RM1-0037, 1× RM1-0036). Tray 3 rollers inspected and confirmed serviceable. Printer tested and cleared.

Problem: Zebra GX430t thermal printer due for scheduled preventive maintenance (visit 5 of 6).

Solution: Performed scheduled PM on Zebra GX430t at 1,983,744 inches of media feed. Cleaned internal components and verified printer configuration.

Problem: Customer in Silver Spring, MD required a new Lexmark MB2546adwe monochrome multifunction laser printer along with an additional OEM toner cartridge for the service department.

Solution: Sourced and fulfilled a new Lexmark MB2546adwe Mono MFP. An OEM toner cartridge (part no. LEX-B241H00) was included per the customer's request and the unit was prepared for delivery.

Problem: Datamax DMX I-4208 thermal printer reported offline at a Herndon, VA facility.

Solution: Tested the DMX I-4208 by swapping a known-good data cable to the unit, confirming the printer itself was functional. The wall port serving the printer was inactive. No hardware fault found with the printer. Network IP configuration will need to be re-entered once the port is brought live.

Problem: Zebra 105SL thermal printer reported poor print quality during a PM20 preventive maintenance interval.

Solution: Technician adjusted print darkness and printhead pressure settings, restoring consistent output. No additional mechanical issues were identified.

Problem: Zebra GX430t thermal label printer was due for its third scheduled preventive maintenance visit in a five-service agreement.

Solution: Cleaned and repaired the cutter assembly, printheads, sensors, and feed rollers. Reconfigured printer settings and tested for proper operation.

Problem: Lexmark MS810 laser printer reported recurring jams at the rear of the machine.

Solution: Inspection identified a missing spring on the redrive assembly. The spring was reseated, the assembly cleaned, and the printer tested to confirm jam-free operation.

Problem: Datamax M-Class thermal printer reported a media sensor fault requiring parts replacement.

Solution: Technician diagnosed the media sensor failure and sourced a replacement part, shipped directly to the customer's location.

Problem: Zebra 105SL thermal printer submitted for quarterly preventive maintenance; print head pressure pins found mispositioned, applying tension to the transfer ribbon rather than the print head.

Solution: Repositioned pressure pin tensioners to correctly load the print head, cleared label residue from the print head, removed accumulated dust, and verified all drive mechanisms were functioning within spec.

Problem: HP LaserJet M3035 reported recurring document jams occurring in the ADF.

Solution: Technician sourced a replacement ADF assembly, installed it on the M3035, cleaned the unit, and tested to confirm jam-free operation.

Problem: A Lexmark MS821 laser printer in Frederick, MD required a full maintenance kit service, including fuser and paper-feed component replacement across all three trays.

Solution: Replaced the fuser (41X1115), three pickup roller assemblies (41X1108), and three separation pad assemblies (41X1119) covering trays 1, 2, and 3. Cleaned and tested the printer after all components were installed.

Problem: Customer in Leesburg, VA required a replacement HP LaserJet P3015dn laser printer.

Solution: A refurbished HP LaserJet P3015dn was sourced and shipped directly to the customer, covered under a 90-day warranty.