Service History — Boston, MA

Problem: Sato B-EX6T1-T tag printer reported for scheduled preventive maintenance (PM1 of 6) in Salem, MA; a Windows PC error message was also present on the associated workstation.

Solution: Performed PM1 preventive maintenance on the Sato B-EX6T1-T tag printer. Cleaned the printer thoroughly. Investigated the Windows error message and determined the issue was a template failure originating from the host system, not a printer fault. The thin client was replaced and Windows updates were

Problem: HP Color LaserJet Enterprise M578dn MFP brought in for a loud clicking noise traced to the tray 2 paper feed area.

Solution: Inspection revealed the tray 2 pickup roller assembly had dislodged and both the pickup roller (RM2-0062) and separation roller (RM2-0064) were heavily worn. Replaced both assemblies, cleaned the feed path, and tested — printer returned to normal operation.

Problem: HP LaserJet MFP M634 reporting persistent error 13.82.FF (jam in right door) with no visible jam present.

Solution: Cleaned entire machine and inspected feed assemblies for trays 2–5. Located a small torn paper fragment lodged at the paper feed roller assembly sensor behind tray 1. Replaced feed rollers on trays 2–5. A tray 4 separation torque limiter (RC1-3293) was lost during service and temporarily secured; a

Problem: HP Color LaserJet M477fnw reported ghost images in printed output, with page count at 54,245. Inspection revealed a worn fuser, degraded Tray 2 feed, pickup, and separation rollers, and a failed ADF pickup roller and separation pad.

Solution: Replaced fuser RM2-6431, ADF pickup roller B3Q10-60105, ADF separation pad B3Q10-40080, and Tray 2 separation roller RM2-5881 in an initial visit. Tray 2 pickup roller RM2-5576 and feed roller RM2-5577 were installed upon arrival of the backordered component. Printer cleaned and tested after each ph

Problem: OKI MC770 multifunction laser printer would not power on. Only the main power LED illuminated solid green on the display panel — no fan, gear, or motor activity of any kind.

Solution: Technician removed the right side cover and disconnected the hard drive, formatter board, and display panel; the symptom persisted. The low-voltage power supply (LVPS) was removed and inspected — no visibly burnt components, and the removable fuser tested good. Diagnosis pointed to a failed LVPS con

Problem: Lexmark X658de ADF not functioning at a Peabody, MA office, preventing document scanning and copying workflows.

Solution: Technician cleaned the ADF and top half of the machine as a temporary measure, then returned to install a 40X4724 fuser maintenance kit and 40X7220 ADF maintenance kit. Vacuumed and cleaned the entire unit, then tested to confirm full operation.

Problem: Customer in Cambridge, MA required a new Lexmark MB3442adw multifunction laser printer with an additional paper tray.

Solution: Sourced and delivered a new Lexmark MB3442adw MFP with an extra input tray. Unit was in stock; the additional tray shipped separately and was delivered shortly after the initial unit.

Problem: Customer in Lowell, MA required a new Lexmark CX431adw Color MFP to replace or supplement their existing office printing setup.

Solution: Sourced and procured a new Lexmark CX431adw Color Multifunction Laser Printer, coordinating order fulfillment and delivery to the customer's Lowell, MA location.

Problem: OKI B4400 laser printer in Waltham presented with all indicator lights flashing and the unit unable to print.

Solution: Technician assessed the B4400 and determined replacement was more practical than repair. The customer was advised to source a new unit independently, with the OKI B4600 or B412 recommended as compatible replacements.

Problem: HP Color LaserJet M551 in Malden, MA reported a persistent paper jam with no visible obstruction — customer noted small round transparent stickers had been fed through the cassette tray, with one unaccounted for.

Solution: Disassembled the printer to locate the missing transparent sticker lodged internally, removed it, reassembled, and tested — paper path cleared with normal operation confirmed.

Problem: Lexmark C748de reported recurring paper jams requiring a follow-up visit after initial repair.

Solution: Replaced worn feed tires to address initial jamming. On return visit, found the printer positioned on carpet, which impaired stability and airflow; relocated the unit to a hard, level surface.

Problem: Brother MFC-9460CDN presented with multiple print-quality defects after approximately 6–8 years of operation with no prior service.

Solution: Onsite inspection identified worn consumables as the root cause. Technician recommended replacement of drum unit DR310CL, transfer belt BU300CL, waste toner box WT300CL, and fuser assembly LY0748001, plus a manual drum counter reset as part of a full PM service.

Problem: HP Color LaserJet MFP M477fnw presented with multiple reported issues requiring hands-on diagnosis.

Solution: Technician inspected the HP CLJ MFP M477fnw, addressed multiple identified issues, cleaned internal components, and tested the unit to confirm proper operation.

Problem: HP Color LaserJet M477 in Waltham, MA producing vertical lines running down copied output across all three reported instances.

Solution: Technician cleaned the ADF glass on the HP Color LaserJet M477. Post-cleaning test copies confirmed the vertical line defect was eliminated with no remaining issues.

Problem: HP LaserJet P3005x producing poor print quality with smearing, smudging, and vertical stripes down each page.

Solution: Identified a defective toner cartridge (91% life remaining) causing vertical striping. After a second replacement cartridge showed specking, a third cartridge from an alternate vendor resolved the image quality issue. Original defective toner was submitted for warranty processing.

Problem: HP LaserJet 4250 producing lines in printed output, traced to fuser assembly failure.

Solution: Diagnosed line defects by swapping a known-good fuser, confirming small cuts in the heating element film of the original unit. Replaced fuser assembly (RM1-1082-090CN) and verified clean output across test prints.

Problem: HP LaserJet M806 reporting error 13.B9.A2 with repeated paper jams occurring in the duplex unit.

Solution: Technician visited the Everett, MA site, located and cleared multiple sheets jammed in the duplex unit, then tested the printer to confirm normal operation.

Problem: HP LaserJet M608dn in Braintree, MA was pulling multiple pages simultaneously from Trays 2 and 3, causing repeated misfeed errors.

Solution: Replaced the pickup roller assemblies and separation roller assemblies in Trays 2 and 3. Cleaned the printer and tested to confirm single-sheet feed was restored.

Problem: HP Color LaserJet MFP M577 reported repeated paper jams throughout the machine.

Solution: Inspection revealed a torn transfer belt as the source of chronic jamming. Technician replaced the transfer belt kit (B5L24-67901) and tested the unit to confirm normal operation.

Problem: HP LaserJet 9050 reporting recurring paper jams on the right side, with paper stalling beneath the toner or in the fuser area, alongside a low-maintenance error.

Solution: Diagnosed maintenance count discrepancy caused by a refurbished-unit counter reset and doubled page counts from heavy 11×17 printing. Replaced the paper input unit (RG5-5681) and cleaned the registration assembly (RG5-5663). Cleaned the printer interior, tested both trays, and reset the maintenance

Problem: HP Color LaserJet MFP M476dw reporting Scanner Error 16, with sporadic server errors when scanning to a network folder and unexplained error states appearing overnight without user activity.

Solution: Technician cleaned the scanner assembly, verified firmware was current, and performed full functional testing. Scan-to-network-folder and all print functions tested without fault. The customer monitored the unit over the following weeks and reported no recurrence of the error.

Problem: HP LaserJet M3035 reported multiple operational issues, including a stuck start button preventing normal job initiation.

Solution: Technician diagnosed the HP LaserJet M3035, replaced faulty components including the stuck start button assembly, then cleaned and tested the unit to confirm full functionality.

Problem: HP Color LaserJet MFP M477 in Natick, MA reported ghosting images in printed output.

Solution: Technician replaced the fuser unit on the HP CLJ MFP M477 (page count: 39,994) and tested the printer to confirm ghosting was eliminated.

Problem: HP Color LaserJet MFP M880 reporting error 46.23.3C and refusing to print.

Solution: Disconnected ethernet and rebooted the system. Cleared the print queue, installed a new ITB, replaced all feed rollers, and cleaned the machine. Unit tested and returned to service.

Problem: HP LaserJet P3015n in Everett, MA reported in need of maintenance. Inspection revealed a failing fuser assembly, worn fuser gear kit, and degraded tray 2 pickup roller and separation pad.

Solution: Replaced fuser assembly (RM1-6274), fuser gear kit (P3015-GK), tray 2 pickup roller (RM1-6323), and tray 2 separation pad (RM1-6303). Cleaned and tested printer to confirm proper operation.

Problem: Brother MFC-L8900cdw reported as unable to scan in a mixed Mac/PC office environment.

Solution: Glass cleaned to resolve a copy streak. Scan-to-USB tested and confirmed functional, outputting PDF. Mac scan settings identified as likely cause — customer advised to adjust resolution from 100 DPI to 600 DPI and paper size from A4 to Letter. Issue referred to the customer's IT contact for driver a

Problem: HP Color LaserJet 5500dtn produced splotches across printed pages.

Solution: Cleaned the transfer belt and rollers. Identified two failing toner cartridges; replacements were ordered. Customer advised to reopen the call once the defective toner is swapped out.

Problem: HP LaserJet Enterprise M605 reported a rumbling noise during printing and prompted for incorrect paper size after a toner cartridge replacement.

Solution: Loaded correct paper into Tray 1, clearing the paper-size mismatch. Inspected the fuser — no faults found. Confirmed the imaging drum rotated freely by hand. Noise attributed to toner settling in the new cartridge; advised the customer it would dissipate with normal use.

Problem: Toshiba B-SX5T Horticulture Series tag printer in Natick, MA was due for its fourth scheduled preventive maintenance service.

Solution: Performed PM4 preventive maintenance on the Toshiba B-SX5T Horticulture Series tag printer. Cleaned internal components and tested the unit to confirm proper operation.

Problem: HP Color LaserJet M452dn reported with persistent paper jams and print quality issues.

Solution: Confirmed jam condition and cleared lodged media. Inspection revealed a failed duplex fuser (RM2-6418-000CN, 110–127V) causing print quality defects; fuser replacement recommended.

Problem: HP Color LaserJet M570DN MFP producing lines in printed output.

Solution: Diagnosed streaking lines traced to a worn transfer belt (CD644-67908). Part was quoted; the customer elected not to proceed with the repair.

Problem: HP LaserJet 600 M603 recurring paper jams across multiple trays, including late-to-fuser, misfeed from Tray 3, and late-to-registration from Tray 2.

Solution: Diagnosed moisture-laden media as root cause — an overhead vent blew directly onto the printer. Replaced three RM1-0037 pickup rollers, two RM1-0036 white rollers, fuser RM1-8395-000CN, and Paper Feed Roller Assembly RM1-8411-000CN. Demonstrated paper-folding separation technique to reduce moisture

Problem: HP Color LaserJet CP2025 presented with feed issues and degraded print quality, flagged at maintenance level 7 of 9, requiring roller replacement and full internal cleaning.

Solution: Technician replaced the pick and feed rollers, performed a thorough internal cleaning, and tested the printer to confirm reliable paper feed and restored output quality.

Problem: HP LaserJet M5035 reporting Scanner Failure error 30.01.19; flatbed lamp inoperable, causing scans to output as fully blacked-out pages.

Solution: Diagnosed faulty lamp assembly triggering error 30.01.19. Replaced the final scanner assembly (Q7829-60185) and scanner control board (Q7829-60183). Cleaned unit and verified all scan functions restored.

Problem: Lexmark MS810 laser printer producing wrinkled output on paper and labels; maintenance kit alert active on the device.

Solution: Technician cleaned rollers and toner deposits throughout the printer, then installed a maintenance kit. Post-installation test confirmed paper and labels fed without wrinkling.

Problem: Customer requested a scheduled preventive maintenance cleaning for an HP LaserJet M527 MFP at a Woburn, MA office.

Solution: Performed full cleaning of the HP LaserJet M527 MFP at page count 11,284. Inspected all accessible components, cleaned internal assemblies, and tested the unit. No mechanical or print-quality defects were found.

Problem: Brother MFC-9970CDW presented with a leaking cyan toner cartridge, critically low black toner, a belt unit at 4% remaining life, and worn pickup/feed rollers in both Tray 1 and the lower optional Tray 2.

Solution: Installed a replacement belt unit (BU-300CL), Tray 1 pickup roller assembly, and Tray 1 separation pad. Cleaned and tested the printer. Cyan toner (TN315C), black toner (TN315BK), and Tray 2 feed roller components were identified as additional parts required and quoted to the customer.

Problem: HP LaserJet Flow M630z MFP required a maintenance kit and ADF document feeder kit replacement.

Solution: Installed maintenance kit (B3M77A / B3M77-67902) and ADF kit (L2718A / L2725-60002), reset page counts, and tested all paper trays and copy functions.

Problem: HP LaserJet 5200 presented with paper jams at the fuser and audible noise from the heating element film after an extended period of non-use.

Solution: Technician swapped the fuser from a second LJ 5200 (which was producing light output) into this unit, which had the lower page count. Customer selected this configuration after reviewing fuser-swap vs. laser/scanner unit transfer options.

Problem: Canon ImageRunner 3300i (manufactured 2001) presented with multiple simultaneous failures: trays 1 and 2 not detecting loaded letter paper, persistent jams in the main paper path, non-functional flatbed scanner, and ADF requiring manual assist to feed.

Solution: Technician diagnosed tray paper sensors, main-path jam, flatbed scanner assembly, and ADF feed rollers as all requiring service. USB-to-parallel connection was replaced with a proper network printer setup and correct driver loaded. Given the scope of repairs on a 20+ year-old unit, the customer elec

Problem: HP LaserJet M609 in Lynn, MA would not print. A large multi-copy print job had been submitted repeatedly, leaving stuck jobs in the queue that blocked all subsequent print requests.

Solution: Technician advised the customer to power off the printer while IT support cleared all stuck jobs from the print queue. After powering the printer back on, the queue cleared and normal printing resumed. Remote resolution; no onsite visit required.

Problem: HP LaserJet M607n required a maintenance kit installation as part of a scheduled second-phase service visit.

Solution: Installed a drop-shipped maintenance kit on the HP LaserJet M607n. Cleaned and tested the printer post-installation. Fuser core returned to the customer via carrier.

Problem: HP LaserJet M608n reported an intermittent image defect — a portion of the image reprinting over itself — alongside scheduled preventive maintenance as part of a four-printer PM rotation.

Solution: Replaced Tray 2 and Tray 4 pickup roller assemblies and separation roller assemblies (Tray 2 is an envelope feeder unit). Cleaned and tested the printer. The intermittent double-image defect was documented via a sample print; a new toner cartridge was recommended as the first diagnostic step, with f

Problem: HP LaserJet MFP M830 reported a grinding noise from the paper tray area; tray slots 2 and 3 displayed a 'no paper loaded' error despite paper being present.

Solution: Isolated the fault to one specific cassette tray rather than the tray slots themselves. Replaced the defective unit with an RM1-9726-000CN cassette tray and cleaned the scanner glass. Tested all trays — normal operation confirmed.

Problem: HP LaserJet 9050n producing print quality defects and paper indentations; fuser also causing jams at the fuser-to-stacker transfer point.

Solution: Swapped toner from customer stock, resolving partial quality issues. Installed C9152A maintenance kit, replaced the fuser, and reset the maintenance count. Tested all input and output trays to confirm normal operation.

Problem: HP Color LaserJet M577z MFP producing distorted output along the left and right margins when printing bold-color photos, while text and light color prints appeared normal.

Solution: Diagnosed a defective fuser as the root cause by swapping in a known-good fuser from an identical unit on-site, confirming clean output on bold-color photos. A warranty replacement fuser was ordered, installed, and tested successfully. The defective unit was returned to the manufacturer.

Problem: Lexmark MB2546 MFP in Framingham, MA presented a persistent '111.30F Service Print Head' error.

Solution: Technician power-cycled the unit and relocated its power connection from a shared strip to a dedicated wall outlet, eliminating the error. The printer reached ready status and produced test output normally. No further issues were reported.

Problem: HP LaserJet P4015 reported multiple issues including paper jams and degraded print quality.

Solution: Installed HP CB388A maintenance kit (fuser kit, 110/120V) on the HP LaserJet P4015 at page count 17,708. Verified clean print output and confirmed fuser-area jamming resolved.

Problem: HP LaserJet P3015 in Framingham reported persistent paper feed issues traced to worn tray 2 and tray 3 pickup rollers and separation pads.

Solution: Technician replaced tray 2 and tray 3 pickup rollers (RM1-3763) and separation pads (RM1-6303), cleaned the feed path, and tested to confirm reliable paper pick from both trays.

Problem: HP Color LaserJet M775zm MFP reported a 31.03.36 pick sensor warning error on the ADF, with worn feed rollers in trays 3–5 and a broken right door assembly on the 3-×-500 paper deck.

Solution: Reseated the ADF pick sensor actuator to clear the 31.03.36 error. Taped the broken right door closed temporarily and cleaned the unit. On return visit, replaced the right door assembly (CE710-69008), tray 3 rollers, and tray 4–5 rollers (4× RM1-0037-000). Emptied the waste toner bottle and tested t