Service History — Joliet, IL

Problem: Zebra ZT410 thermal printer producing faded, light output on one side of the label — consistent with printhead wear or failure.

Solution: Technician inspected the ZT410, confirmed uneven print density traced to a failing printhead. No additional faults found. Quoted replacement printhead (P1058930-010, 300 dpi, ZT410-compatible); customer approved repair for this unit.

Problem: A Zebra 105SL thermal printer was flagged during a PM11 preventive maintenance inspection as requiring a main board and printhead replacement.

Solution: Technician replaced the main logic board (G32433M) and printhead, then cleaned and tested the printer to confirm proper operation.

Problem: Xerox AltaLink C8035 multifunction copier presented with yellow vertical bars running down printed pages. Preventative maintenance was also due.

Solution: Technician performed a full interior cleaning of the Xerox AltaLink C8035 and cleaned the imaging drums. Yellow bar defects cleared and output quality improved noticeably. Yellow and magenta drums identified as worn; customer has replacement drums on order.

Problem: HP Color LaserJet CP5525 reporting error code 59.00.F0, indicating a motor startup failure.

Solution: Diagnosed error 59.00.F0 on the HP CP5525. Inspection identified the DC Controller, main drive assembly, and fuser drive as components requiring replacement. Given the estimated repair scope, the customer elected to replace the unit rather than proceed with service.

Problem: HP Color LaserJet Enterprise MFP M880z scheduled for preventative maintenance as part of a recurring service cycle.

Solution: Performed scheduled preventative maintenance on HP Color LaserJet Enterprise MFP M880z at 773,994 pages. Installed maintenance kit, cleaned internal components, and tested device for proper operation.

Problem: Customer requested an on-site consultation to assess their Zebra thermal printer fleet, confirm models, and establish a preventive maintenance plan.

Solution: Technician inspected the Zebra printers, verified models and printer types, and confirmed scanner access for RFID data validation. Coordinated with the production supervisor to schedule bi-monthly PMs during tooling changeovers. Each PM will include media calibration and RFID calibration per unit, a

Problem: HP Color LaserJet MFP M479fdw was unable to print, with a broken front door assembly held in place with tape.

Solution: Wireless print driver configured on the customer's laptop, restoring print functionality on the first visit. A replacement front door assembly (RM2-1824-000CN) was quoted; a donor M477 unit was identified as a parts source for the repair.

Problem: Lexmark MS610dn in the accounting department reported a toner dump along with a persistent 'Replace Imaging Unit' error after toner and imaging unit had already been swapped.

Solution: Technician found the original imaging unit at 5% life remaining. Replaced it with a new imaging unit from field stock, cleaned the printer, and tested to confirm the error cleared and output quality was restored.

Problem: HP LaserJet M607 reported fuser not heating, causing toner to fail to adhere to printed pages.

Solution: Replaced a previously installed fuser on the HP LaserJet M607 (page count: 163,485) that had failed. Cleaned the printer and performed post-repair testing to confirm proper fuser operation and toner adhesion.

Problem: HP Color LaserJet Enterprise M750 reported intermittent paper jams and print quality defects, including recurring black horizontal lines across output.

Solution: Diagnosed root cause as a failing fuser unit. Replaced the fuser assembly (part CE977A) to eliminate horizontal line artifacts and resolve the jamming condition.

Problem: HP Color LaserJet M575 MFP producing green and blue lines in printed output, observed on configuration sheet during a separate on-site visit.

Solution: Diagnosed lines to a failing transfer belt (CD644-67908). Cleaned belt was evaluated as insufficient; replacement belt was installed and tested, resolving the line defects.

Problem: HP LaserJet E52465 reported low or depleted toner requiring cartridge replacement at a Romeoville, IL facility.

Solution: Technician arrived on-site and confirmed the toner cartridge had already been replaced earlier that day by the customer's IT staff. No additional parts or service were required; call closed after verifying device status.

Problem: Lexmark CX417de required a maintenance kit along with black and color imaging kit replacements.

Solution: Quotes were prepared for the maintenance kit, imaging kits, and a replacement unit for cost comparison. The customer opted to purchase a new printer after determining part costs exceeded the repair budget. Work order closed.

Problem: Zebra 105SL thermal printer was not printing from a connected PC, though it was visible on the network and accessible via its web interface.

Solution: On arrival, a Windows test label had already printed. Technician ran multiple label print jobs through third-party software with no issues observed. Internal configuration prints confirmed normal printer function; the intermittent failure could not be replicated on-site.

Problem: Zebra S4M thermal printer in Mokena, IL reporting multiple sensor errors (3 of 4 active).

Solution: Technician cleaned and tested the unit, diagnosing a worn platen roller as the root cause of the sensor faults. Customer elected to source and install a replacement platen roller (G77023M) using on-site stock.

Problem: Zebra 105SL Plus presented with a cut platen roller and a broken ribbon strip plate with a missing mounting screw, requiring urgent parts replacement.

Solution: Replaced the damaged platen roller and ribbon strip plate, installing two screws to properly resecure the ribbon strip plate. Verified full printer functionality after repair.

Problem: HP LaserJet MFP M607 reported making abnormal noise during operation.

Solution: Inspected HP LaserJet MFP M607 (page count: 1,287,850). Replaced fuser maintenance kit upon parts arrival. Cleaned internal components and tested device to confirm noise was eliminated.

Problem: HP LaserJet P4015n reported persistent paper jams originating from Tray 2, halting the print queue.

Solution: Installed a customer-supplied maintenance kit on the HP LaserJet P4015n, reset the page count, and confirmed the printer resumed processing queued jobs from Tray 2 without error.

Problem: HP CM4540 reporting errors 59.00.F0, 49.43.14, 54, and 81. Unit intermittently hung in calibration mode; when it progressed, it faulted with one of the four error codes.

Solution: Replaced fuser, transfer kit, and two toner cartridges using customer-supplied stock. Updated firmware. All four error codes cleared and calibration completed without fault.

Problem: Zebra ZT410 thermal printer required PM4-level preventive maintenance; belt and platen roller were due for replacement.

Solution: Performed PM4 service on the Zebra ZT410. Replaced the platen roller (P1058930-080 Zebra OEM) and drive belt (79866M Zebra OEM). Device tested after reassembly and returned to full operation.

Problem: HP Color LaserJet M477fnw would not power on.

Solution: Traced no-power condition to a defective surge protector. After connecting to a functional outlet, the printer powered on normally. Cleaned feed rollers in the tray and ADF, and cleaned the scanner glass. Device tested fully operational.

Problem: Zebra ZT230 (ZT23042-T01200FZ) was due for scheduled preventive maintenance as part of a multi-unit fleet deployment at a Lockport, IL facility.

Solution: Technician performed PM service on the ZT230, thoroughly cleaning the interior and running functional tests to confirm proper operation post-service.

Problem: HP Color LaserJet CP3505 displayed a persistent out-of-paper error despite both trays being loaded. Powering off and reinstalling the printer driver on the workstation did not clear the fault.

Solution: Technician confirmed both trays fed correctly on internal test prints and verified network communication via the web portal. Fault was isolated to the server-side print driver; the server driver was reloaded to restore normal print queue operation.

Problem: HP LaserJet P3015 would not print; technician suspected an internal paper or component jam preventing output.

Solution: Found a mangled upper pressurized tension wire in the toner cartridge area that had popped out of place and bent severely, preventing the cartridge from seating and rotating correctly, producing only blank pages. The wire was removed entirely, restoring proper cartridge function. Printer was cleaned

Problem: HP Color LaserJet M750 producing horizontal lines across printed pages.

Solution: Inspected imaging units and identified visible streaks on the transfer belt following the cleaning cycle. Replaced the transfer kit (CE516A), vacuumed and cleaned the machine interior, reset the page counter, and ran calibration twice. Non-HP drum units were found to be causing drag artifacts at the

Problem: Zebra ZT410 thermal printer in New Lenox was continuously printing labels without stopping, indicating a media sensor or calibration fault.

Solution: Technician cleared labels from the platen roller, cleaned the media sensor, and recalibrated the printer. Feed behavior was verified against the PLC print queue and confirmed operating correctly.

Problem: Four Zebra ZM400 thermal printers in Minooka, IL required 300 dpi printhead conversion kit installations.

Solution: Installed 300 dpi conversion kits on four Zebra ZM400 units. Each printer was cleaned and test-printed following kit installation to verify proper output quality.

Problem: Zebra ZM400 thermal printer in Naperville required PM4-level preventive maintenance; the unit had accumulated dirt and dust affecting print quality.

Solution: Performed PM4 service on the Zebra ZM400. Used an air nozzle attachment on the facility's air hose to clear accumulated dirt and dust from internal components. Verified output with test prints following cleaning.

Problem: Lexmark X792de multifunction laser printer jamming during both simplex and duplex print cycles in Manteno, IL.

Solution: Technician cleaned the machine and identified a broken fuser causing the exit flip guide above the fuser to stick. Replaced the fuser (part 40X7100) and tested the unit across simplex and duplex modes to confirm the jams were resolved.

Problem: HP LaserJet 500 MFP M521dn reported with a faulty ADF requiring replacement. Further inspection revealed no scan output on ADF, glass, or base scanner, with tray 2 roller and separation pad also worn.

Solution: Replaced ADF (A8P79-65014). Verified ADF scan light and scanner motor operational, but base scanner produced no scan light. Checked connectors and ribbon cables; base scanner, formatter (A8P80-60001), tray 2 roller (RM1-6323), and separation pad (RM1-6303) identified as additional components needed.

Problem: Zebra ZT230 reported not printing labels, with visible lines in the print output traced to cuts in the platen roller.

Solution: Inspected the ZT230 and confirmed damaged platen roller (P1037974-028) and degraded 203dpi printhead (P1037974-010). The customer supplied both stocked replacement parts; the technician installed the platen roller and printhead, restoring clean label output.

Problem: HP Color LaserJet M551 reported a continuous 13.B2.D2 error indicating a persistent paper jam originating in Tray 2.

Solution: Cleaned the printer and replaced the Tray 2 roller kit (CF081-67903), including one RM1-8131 pickup roller and one RM1-8129 separation roller. Tested after installation and confirmed normal operation.

Problem: Four Zebra ZM400 thermal printers at a Frankfort, IL facility were due for quarterly preventive maintenance.

Solution: Customer requested PM frequency reduced to twice yearly. Scheduled maintenance interval adjusted accordingly; no on-site service performed this visit.

Problem: Zebra ZT230 thermal printer in Mokena, IL was only printing on 2 labels before failing. Internal inspection revealed the platen roller gear screw had come loose and was dangling inside the unit.

Solution: Repositioned the platen roller gear to the 300 dpi mounting hole and secured it with the proper screw. Tested print output across multiple labels to confirm consistent feed and image quality before closing the call.

Problem: HP LaserJet E82550z MFP producing a vertical line down the center of printed pages.

Solution: Technician diagnosed backed-up waste toner as the root cause. Over two visits, cleaned and vacuumed the full machine, then replaced the fuser (Z7Y75A), transfer belt assembly (Z7Y85A), waste toner bottle (W9016MC), and Tray 2–5 roller kits (Z9M01A). An 'Add Toner' prompt appeared post-repair; initia

Problem: Zebra 105SL reported degraded print quality requiring a printhead and platen roller replacement, with visible creasing noted during the PM58 preventive maintenance inspection.

Solution: Technician performed PM58 service on the Zebra 105SL (10500-3001-2000), replacing the printhead and platen roller (G32011M) to correct print quality issues and eliminate media creasing.

Problem: Lexmark MS610dn in Frankfort, IL reported poor print quality. The imaging unit status read 'Very Low.'

Solution: Replaced the imaging unit, tray 1 pick tires, and tray 1 separation roller assembly. Cleaned and tested the printer; print quality restored to spec.

Problem: Five Zebra GX430t thermal printers at a Plainfield, IL facility were due for scheduled preventive maintenance.

Solution: Performed full PM service on all five Zebra GX430t units. Odometer readings logged at completion: 1,598,662 in. / 1,304,992 in. / 662,911 in. / 1,488,394 in. / 496,044 in. Each unit tested and returned to service.

Problem: HP DesignJet T790 producing vertical orange streaks after the 3rd or 4th consecutive print job. Single prints appeared normal; streaking emerged only under sustained output.

Solution: Replaced the Gray & Photo Black printhead (72, C9380A) and the Magenta & Cyan printhead (72, C9383A). Cleaned and tested the plotter to confirm streak-free output across multiple consecutive print jobs.

Problem: HP DesignJet T830 wide-format plotter reported ink leaking from the printhead, with a recurring service station detection issue mirroring a prior repair.

Solution: Cleaned the unit to restore temporary usability pending parts. Replaced the prime pump kit (F9A30-67048), OEM printhead (F9J81A), and service station (F9A30-67052). Resolved pump installation error code during fitting. Verified no printhead or service station faults after installation; print quality

Problem: HP LaserJet MFP M528 displayed persistent error code 49.38.0C, indicating a critical firmware or storage fault halting normal operation.

Solution: Diagnosed error code 49.38.0C as a failed HDD. Cleaned the machine, replaced the hard disk drive (part B5L29A), and tested to confirm full functionality restored.

Problem: HP LaserJet M404dn reported as non-functional at a Manteno, IL facility.

Solution: Technician conducted a thorough walk-through of the warehouse, offices, and packing stations. No printer matching the reported serial number or asset tag was found among the dozen-plus devices inspected. No staff at the location had reported a downed printer. Call closed — equipment could not be loc

Problem: Zebra 140Xi4 reported light print output with ribbon failing to display correctly, halting calibration and preventing printing.

Solution: Diagnosed a faulty 203 DPI printhead and snap plate on the Zebra 140Xi4. Replaced the printhead (P1006112) and snap plate (P1004234); device tested and returned to full operation.

Problem: HP LaserJet 8000 in Mokena, IL reported poor print quality.

Solution: After inspection, the print quality defect was traced to a faulty third-party toner cartridge. No repair was required; the call was canceled once the root cause was confirmed.

Problem: A Zebra 105SL thermal printer was due for a PM6-level preventive maintenance service and required replacement of the main board.

Solution: Technician completed PM6 service on the Zebra 105SL and replaced the main board (part 34901-020M). Replacement part was installed and the unit was tested and returned to working order.

Problem: Zebra ZT510 thermal label printer in Tinley Park scheduled for its third quarterly preventive maintenance visit.

Solution: Technician inspected the ZT510, confirming no adhesive residue or ink buildup given the unit's age. Print quality verified within spec. Quarterly PM completed per scheduled maintenance plan.

Problem: Zebra ZT410 (203 dpi) in Aurora, IL reported skipping labels and printing horizontal lines across media.

Solution: Technician cleaned the platen roller, printhead, pulse disc, sensor, and full interior; removed torn label debris and adhesive buildup. Adjusted tension and darkness settings. Over subsequent visits, replaced the printhead (P1058930-009), platen roller (P1058930-080), media rewind assembly (P1058930

Problem: Printronix T8206 thermal printer in Orland Park, IL was due for scheduled preventive maintenance (PM visit 5 of 7).

Solution: Technician cleaned the printer, platen roller, and printhead. Printhead replacement was noted as needed; per the customer, printheads are supplied through their contract provider. Unit was tested and returned to service.

Problem: Zebra 105SL Plus industrial thermal printer due for quarterly preventive maintenance.

Solution: Cleaned printer internals and ran test prints. Inspection identified worn printhead, platen roller, and ribbon take-up spindle — spindle lags under full ribbon load. Components flagged for replacement at the next PM cycle.

Problem: HP Color LaserJet Pro M454dn in Tinley Park, IL presented for a scheduled preventive maintenance visit.

Solution: Preventive maintenance performed on the HP Color LaserJet Pro M454dn. Nine of the standard PM procedures were completed on-site.