Service History — Baltimore, MD — Page 2

Problem: Toshiba e-STUDIO 3525AC reported intermittent feed failures from paper trays 1 and 2. Inspection revealed pickup rollers heavily contaminated with accumulated dirt and dust.

Solution: Technician cleaned pickup rollers on both trays using compressed air and isopropyl alcohol, removing debris from all pickup surfaces and restoring reliable paper feed.

Problem: Lexmark CS417 laser printer in Westminster, MD required maintenance kit and roller components.

Solution: Maintenance kit and replacement rollers sourced and shipped via FedEx Ground to the customer's location for a parts-only order.

Problem: HP Color LaserJet M452dw in Glen Burnie reported abnormal noise during operation, traced to worn tray 2 feed, pickup, and separation rollers.

Solution: Replaced tray 2 feed roller (RM2-5577), pickup roller (RM2-5576), and separation roller (RM2-5881). Cleaned printer internals and verified quiet, correct operation through post-repair testing.

Problem: HP LaserJet 500 Color MFP M570dn reported with potential tray assembly motor failure; printer failing to feed from Tray 3.

Solution: Technician found the Tray 3 sensor flag stuck; freed the flag, restoring feed from Tray 3. Also identified worn ADF rollers and transfer belt producing lines in output. Recommended parts: Tray 3 holder (CF084A), Tray 3 assembly (RM2-7447-000), Transfer Kit (CD644-67908), and ADF Kit (A8P79-65001).

Problem: College Park customer requested a new HP LaserJet Enterprise M507n laser printer.

Solution: Quoted, sourced, and fulfilled a new HP LaserJet Enterprise M507n. Order was approved and the unit was shipped directly to the customer.

Problem: Lexmark MS821 laser printer producing vertical streaks down printed pages.

Solution: Diagnosed vertical streaking on the Lexmark MS821 as a failing imaging unit. A replacement imaging unit was sourced and shipped to the customer for installation.

Problem: HP LaserJet M506 reported ghosting on printed output and required maintenance. Further inspection revealed worn rollers, a faulty fuser, and a broken tray cassette separation roller.

Solution: Installed maintenance kit including fuser and roller components. A recurring 49 error during prints was traced to the replacement fuser; the defective unit was returned to the vendor and replaced. A new tray separation roller was also installed. Firmware was updated and all trays were tested before

Problem: HP LaserJet M506 producing smudged output across print jobs.

Solution: Replaced the toner cartridge and cleaned the paper feed rollers on the HP LaserJet M506. Test prints confirmed clean, smear-free output.

Problem: HP LaserJet M608 at an Aberdeen, MD facility required a maintenance kit replacement at 354,831 page count.

Solution: Installed maintenance kit on HP LaserJet M608. Cleaned internal components and tested printer to confirm proper operation.

Problem: Lexmark MS821 reporting a 171.84a Main Fan Error, intermittently clearing on power cycle but recurring during normal operation.

Solution: Reviewed full event log confirming the sole fault was a 171.84a Main Fan Error. Replaced the main fan (part 41X1177) and verified clean bootup and test prints with no recurrence.

Problem: HP LaserJet 5200 in Laurel, MD reported paper creasing during print jobs.

Solution: Installed maintenance kit on the HP LaserJet 5200 (page count: 162,130), then cleaned and tested the printer to confirm proper paper handling.

Problem: HP LaserJet M608n in Laurel, MD reporting a fuser jam error; paper jams traced to a torn mylar sleeve on the fuser heat roller and worn Tray 2 pickup and separation rollers.

Solution: Replaced the fuser assembly, Tray 2 pickup rollers, and Tray 2 separation rollers using customer-supplied spare parts stocked on site. Cleaned and tested the printer to confirm jam-free operation.

Problem: Lexmark MX822ade displayed 'Missing Factory Configuration' error; printer model, page count, and serial number mismatched on internal reports.

Solution: Diagnosed root cause as a previously replaced controller board that had not been mirrored to the machine's configuration. Extended troubleshooting via phone with manufacturer support included multiple cross-over Ethernet attempts to load firmware and restore files using the Service Restore System To

Problem: Ellicott City customer required a new Lexmark MS821n monochrome laser printer.

Solution: New Lexmark MS821n unit procured and shipped to the customer's Ellicott City location via UPS.

Problem: HP LaserJet MFP M635 reported repeated paper jams originating in Tray 4.

Solution: Replaced worn pickup and retard rollers in Tray 4 (RM2-6772 retard roller, RM2-1275 PPU roller) and replaced matching rollers in Tray 2. Tested feed from all affected trays; jam-free operation confirmed.

Problem: HP Color LaserJet M476dn reported making a grinding noise during printing. The unit was also producing only monochrome output due to an unrecognized yellow toner cartridge.

Solution: Technician could not duplicate the grinding noise on-site. Adjusted the tray guide to the correct Letter setting, which was likely causing rollers and clutch to work hard during paper pickup. Replaced a leaking magenta toner cartridge, cleaned all accessible contacts, and removed loose toner through

Problem: HP LaserJet MFP M426 in Greenbelt, MD presented with complete ADF failure — the feeder made no attempt to pull paper through, while flatbed copy and scan functions remained operational.

Solution: Diagnosed a failed ADF feeder logic board or feed motor requiring full ADF assembly replacement. Also identified worn Tray 2 pickup and separation rollers. Replaced ADF assembly (C5F98-60111), Tray 2 pickup roller assembly (RM2-5452), and Tray 2 separation roller assembly (RM2-5397). Cleaned and tes

Problem: HP LaserJet M608 in Bel Air, MD reported repeated paper jams.

Solution: Found pages jamming at the fuser entrance and exit. Cleared jams, inspected fuser and toner cartridge — no visible damage. A second jam occurred immediately on reprinting, accompanied by horizontal lines across all output. Swapping in a new OEM toner cartridge eliminated both the jams and the print

Problem: HP Color LaserJet M653 reported jamming and grinding noise originating from Tray 2, which was locking up during paper feed cycles.

Solution: Cleaned the machine and inspected Tray 2. Diagnosed failed paper pickup and lift mechanisms; replaced the RM2-6556 Paper P/U Roller Assembly and RM2-6669 Lifter Drive Assembly. Tested all paper feed functions before closing the call.

Problem: Brother HL-L6400DW reported missing characters in printed output and a toner spill. Customer suspected a fuser issue; the fuser had been recently replaced.

Solution: Inspection revealed the toner cartridge was leaking when tilted — toner had pooled inside the printer and on the drum on the same side. The faulty cartridge was replaced from on-site stock after confirming the replacement unit showed no leakage when tilted in either direction. Interior surfaces were

Problem: HP LaserJet MFP M426 producing lines on copies when originals were fed through the ADF.

Solution: Cleaned the CVT glass, eliminating the line defect on copies. Inspected the ADF separation pad and found permanent ink marking; customer was advised copies of small originals onto larger media may show residual marks. Replaced the ADF roller kit and tray 2 feed roller. No additional issues were iden

Problem: On a Lexmark CX962G, legal-size and 11×17 print jobs repeatedly jammed at the finisher, halting production and requiring manual paper extraction.

Solution: Diagnosed the fault to the finisher assembly and replaced it with finisher unit 20L8812. Post-installation testing confirmed jam-free operation across affected paper sizes.

Problem: HP LaserJet M605 displaying a maintenance kit low message; printer remained operational but due for preventive kit replacement.

Solution: Installed HP LaserJet M605 maintenance kit and reset the page count. A callback for tray jams followed; the kit's included rollers showed dry rot and failed to maintain adequate grip despite rubber rejuvenator treatment. Replaced with new-style HP rollers from stock, resolving the jamming.

Problem: Toshiba B-SX5T Horticulture Series tag printer in Annapolis due for its third scheduled preventive maintenance interval.

Solution: Performed PM3 service on the Toshiba B-SX5T Horticulture Series tag printer. Cleaned internal components and completed close-of-maintenance testing to confirm proper operation.

Problem: A Greenbelt, MD office required a replacement HP LaserJet M635h MFP, as the existing HP LaserJet M630 was being retired to storage.

Solution: A new HP LaserJet M635h MFP was procured, unboxed, configured, and tested before delivery. The unit was installed in the accounting department, replacing the HP LaserJet M630, which was relocated to on-site storage.

Problem: A Greenbelt, MD business required a new monochrome laser printer to replace an aging Lexmark T650-class device at a secondary location.

Solution: A new Lexmark MS821n was procured and delivered to the customer's requested drop-off location for forwarding to the end-use site.

Problem: HP LaserJet M607 would not print from local PCs, though the web interface was accessible and remote users could print from an offsite location.

Solution: Confirmed correct driver configuration on local PCs and verified printing from a technician laptop. Found a stalled job in the queue showing data loss during receipt; deleted the job. Issue persisted until the printer was moved from a D-Link 6-port switch to an open port on the facility's Cisco swit

Problem: HP LaserJet M506 reported a paper feed failure accompanied by 52.00.20 and 52.00.00 error codes, indicating a laser/scanner assembly fault.

Solution: Diagnosed 52.00.20 and 52.00.00 errors on the HP LaserJet M506. Replaced the laser/scanner assembly (RM2-5528-000CN) to restore normal printer operation.

Problem: Lexmark C792e laser printer producing streaked output and poor print quality across multiple color channels.

Solution: Diagnosed defective cyan toner cartridge and replaced it. Yellow toner was critically depleted, causing yellow streaking; replaced yellow cartridge as well. Performed color calibration and test prints to confirm output quality.

Problem: HP Color LaserJet M577 in Towson, MD reporting false paper jams and recurring error code 31.13.01.

Solution: Diagnosed fault to the ADF assembly on the HP CLJ M577. Replaced the ADF assembly, cleaned the paper path, and tested to confirm error 31.13.01 and false jam conditions were cleared.

Problem: HP LaserJet M4555 intermittently producing nearly fully black pages, though print remained legible. Toner smearing also reported; scanner error 30.01.08 occurring. No associated error code for the black-page fault.

Solution: Cleaned toner contacts and verified power supply. Toner cartridge identified as primary suspect — user confirmed reseating the cartridge temporarily resolved the black-page issue. Replaced the depleted OEM cartridge with a new cartridge from customer stock to rule out the cartridge before pursuing c

Problem: HP LaserJet M880 reported printing slowly, with the issue having gone unaddressed for several months since it was first logged.

Solution: Technician inspected the M880 and found no mechanical or performance faults contributing to slow output. Horizontal lines were present on copies; cleaning the scanner glass resolved the image defect. All maintenance kits confirmed current.

Problem: HP LaserJet MFP M527 reported light print output following a toner replacement, with the fuser assembly failing at an accelerated rate.

Solution: Inspection revealed the fuser (RM2-2585-000CN / RM2-5679-000CN) had catastrophic heating element film fragmentation, a broken plastic swivel guide, and a broken sensor flag — consistent with either a defective unit, improper installation, or label-jam damage. The compromised fuser was removed from t

Problem: HP LaserJet M3035 MFP in Frederick, MD produced visible lines on both scans and copies.

Solution: Identified a dirty ADF scanner lens as the source of the line artifacts. Cleaned the lens, eliminating the lines from copy and scan output. Unit tested and confirmed clean.

Problem: HP LaserJet M608n displaying 'Tray 2 overfilled or roller issue'; the customer could only print from Tray 1.

Solution: Reseated the Tray 2 pickup roller and separation roller assemblies, clearing the error. Rollers showed wear inconsistent with the registered page count, so both assemblies were replaced. Printer was cleaned, tested, and confirmed printing correctly from Tray 2.

Problem: Greenbelt, MD customer required two HP LaserJet P4015dn units to replace aging laser printer hardware.

Solution: Two HP LaserJet P4015dn printers were sourced and fulfilled. Units shipped with toner included and covered under a 90-day warranty.

Problem: HP DesignJet 500 (C7770B) plotter was leaking ink while sitting idle in a Catonsville, MD facility.

Solution: Replaced the ink tube assembly and cleaned the printer. Initial testing was deferred due to a depleted ink cartridge; upon return visit, a new ink station was installed and the unit was fully tested and confirmed operational.

Problem: HP DesignJet 500 42" (C7770B) reported a printhead carriage-not-closed error and a paper misaligned error.

Solution: Replaced the 42" carriage belt (C7770-60014), cleaned the printheads, and lubricated the carriage rod. Unit was tested after repair to confirm carriage closure and media alignment.

Problem: HP Color LaserJet MFP M682 unable to receive faxes; page count at 101,575.

Solution: Replaced fax board, formatter (J8A10-60001), waste toner bottle, separation and pickup rollers for Trays 2–4, and repaired the 4th-tray sheet-size actuation assembly. Firmware updated. Customer discontinued fax use due to removed wall port; unit reconnected to network with scan-to-mailbox configured

Problem: HP Color LaserJet MFP M479fdn brought in for scheduled preventative maintenance.

Solution: Performed full preventative maintenance on the HP CLJ MFP M479fdn at approximately 2,721 pages. Unit was thoroughly cleaned and tested to manufacturer specifications.

Problem: Lexmark MS415dn at a Columbia, MD location reported Tray 1 failing to pick up paper.

Solution: Inspection revealed bent paper feed guide arms in Tray 1, preventing the cassette from seating fully and engaging the pick mechanism. The technician straightened the guide arms, cleaned the feed assembly, and confirmed reliable paper pickup through testing.

Problem: HP LaserJet 9000n was due for a maintenance kit replacement; the customer requested the parts to perform the installation in-house.

Solution: Maintenance kit sourced and shipped directly to the customer for self-installation on the HP LaserJet 9000n.

Problem: HP LaserJet 600 M602 reported repeated paper jams originating from Tray 2.

Solution: Tray 2 was misconfigured to custom size instead of letter, causing incorrect tray selection. Worn feed rollers were identified as the root cause of jamming. Replaced all three rollers, reconfigured tray to letter/plain, and cleaned sticky residue from exit flags. Tested and confirmed normal operatio

Problem: HP Color LaserJet MFP M577z intermittently pulled from the wrong paper tray, causing print jobs intended for plain paper to output on yellow paper loaded in a separate tray.

Solution: Tray 2 was reconfigured from plain letter to Letter/Color to prevent automatic fallback from tray 3. IT support was engaged to correct driver-level tray assignments, restore proper tray 3 visibility in the print driver, and lock the printer menu to prevent accidental setting changes. Firmware was no

Problem: Catonsville, MD customer required a new Lexmark MC3326adwe color multifunction laser printer.

Solution: New Lexmark MC3326adwe MFP unboxed, tested, and delivered to the customer site. Unit was confirmed operational prior to handoff.

Problem: HP Color LaserJet MFP M575f presented with image quality defects traced to worn feed components, a degraded ADF maintenance kit, and failing transfer belt and fuser assemblies.

Solution: Replaced ADF maintenance kit (L2718A), Tray 2 pickup roller (RM1-4968), Tray 2 separation roller assembly (RM1-4966), transfer/ITU belt (CC468-67927), and fuser assembly (CE484A). Cleaned and tested to confirm restored print quality.

Problem: HP LaserJet M605n producing black marks along the right side of printed pages and emitting an audible rattling noise during operation.

Solution: Technician cleaned the fuser unit, which had sticky label residue adhered to it. Replaced the toner cartridge with customer-supplied stock — the original cartridge also contained stuck label fragments severely degrading print quality. Reseated a dislocated flag sensor that had shifted out of positio

Problem: HP LaserJet M401N in Bel Air, MD was due for scheduled preventive maintenance (PM cycle #6).

Solution: Performed PM service on HP LaserJet M401N at 58,959-page count. Cleaned internal components and replaced pickup roller RL1-0542. Tested printer; output quality confirmed within spec.

Problem: HP LaserJet M602 in a shared commons area was due for scheduled preventive maintenance as part of a multi-unit service visit.

Solution: Performed PM on the HP LaserJet M602. Replaced feed rollers, cleaned internal components, and tested the printer to confirm proper operation.

Problem: A Ricoh MP C3504 in Aberdeen, MD experienced persistent document-feeder misfeeds even after roller replacement, prompting the customer to replace the unit entirely.

Solution: A Ricoh IM C3500 was deployed and drivers were installed. Two workstations were brought online successfully; a third could not be configured during the visit. Black toner was provided with the installation.