Service History — Birmingham, AL — Page 2

Problem: HP LaserJet M611 presented with a broken front multipurpose cover, preventing the door from closing properly.

Solution: Replaced the damaged multipurpose cover (RC4-7312) on the HP LaserJet M611. Door closes fully and functions as intended.

Problem: HP DesignJet 500 42" (C7770B) presented with a paper jam and was displaying error code 11:11.

Solution: Technician inspected all internal components and identified the trailing cable (C7770-60274) as the faulty part. Replaced the 42" trailing cable, cleaned the machine, and tested operation to confirm the error was cleared.

Problem: Lexmark MS821dn reported recurring paper jams affecting normal print operations.

Solution: Replaced Tray 1 and Tray 2 pickup rollers and separation pads. Cleaned internal paper path and tested printer to confirm reliable feed and jam-free operation.

Problem: HP LaserJet 9050 producing lines at the bottom of printed pages, with additional reports of faded print output.

Solution: Inspection revealed leaking toner cartridges, improper voltage and grounding conditions, and a Tray 4 configuration mismatch causing paper errors. Leaked toner had contaminated the transfer roller and a previously installed maintenance kit. The laser scanner mirror was cleaned with no improvement to

Problem: HP LaserJet 4250 reported persistent paper jamming across multiple trays.

Solution: Diagnosed jamming to a defective OEM toner cartridge. Removed faulty toner, installed a maintenance kit, and thoroughly cleaned and vacuumed the entire machine. Replaced Tray 2 solenoid. Verified normal operation with a known-good toner cartridge sourced from a second LJ 4250 unit.

Problem: HP LaserJet M506 reporting error 60.01.02 tray lift fault on Tray 2. Suspected cause was excessive media weight placed in the main cassette.

Solution: Diagnosed error 60.01.02 as worn Tray 2 pickup and separation rollers. Replaced pickup roller (RM2-5741) and separation roller (RM2-5745). Tested at multiple fill levels with standard media — no lift errors recurred.

Problem: HP Color LaserJet CP5225n producing vertical lines down printed pages.

Solution: Technician confirmed the defect via demo page, identified a scratched image transfer belt and a depleted waste toner reservoir as root causes. Replaced the waste toner collection unit (CE980A), image transfer belt/ITB kit (CE516A), transfer roller, and tray 2 feed and separation rollers. Powered the

Problem: Customer reported a high-pitched noise during printing on a newly purchased HP LaserJet M605dn.

Solution: Technician swapped in an alternate toner cartridge, duplexer, and fuser from a known-working M605 to isolate the source. None of those components reproduced or altered the noise. The sound was traced to plastic-on-plastic contact in the face-down delivery assembly and its associated drive assembly —

Problem: HP LaserJet 4250tn reported recurring paper jams affecting normal operation.

Solution: Replaced swing plate assembly RM1-0043, fuser gear RC1-3324, tray 2 pickup roller RM1-0036, and two tray 2 feed/separation rollers RM1-0037. Cleaned and tested printer to confirm jam-free operation.

Problem: HP Color LaserJet 500 M551dn reported a fuser failure requiring unit replacement.

Solution: Installed a replacement fuser assembly (CF082A) on the HP CLJ 500 M551dn, reset the fuser page count, and performed a test print to confirm proper operation.

Problem: Lexmark CX522 reporting a fuser error. Investigation revealed a failed waste toner unit had leaked heavily, packing toner around internal rollers, the transfer belt, and the fuser roller.

Solution: Replaced the fuser and waste toner collection unit. Used compressed air and vacuuming across multiple visits to clear compacted toner from internal components. Persistent sensor failures indicated additional damage to the transfer belt and associated control board. Customer elected to replace the un

Problem: HP LaserJet M607 reported making loud noises, picking up labels during print jobs, and intermittently rebooting — symptoms appearing across multiple departments printing simultaneously.

Solution: Inspected unit following end-user-installed maintenance kit replacement. Noise could not be reproduced on-site. Intermittent reboots attributed to simultaneous multi-department print load. Updated firmware to version 4.11.0.1 and performed full cleaning. Device tested and cleared.

Problem: HP Color LaserJet E57540 MFP required full installation with network configuration, two additional paper trays, a printer stand, and a fax card.

Solution: Installed HP Color LaserJet E57540 MFP with two extra trays and stand. Seated fax card, applied network settings, and configured fax settings per customer specifications. Verified network connectivity and confirmed fax receipt. Coordinated with IT for scan-to-email setup. Packed and staged old print

Problem: HP LaserJet M602 reporting error 13.A2.D2 persistent paper jam fault.

Solution: Inspection revealed feed and separation rollers worn smooth. Replaced feed/separation rollers (RM1-0037) and pick roller (RM1-0036); tray 2 still failed to feed, so the paper pickup solenoid (RK2-0270-000) was also replaced. Normal feeding restored across all trays.

Problem: HP DesignJet T2500 MFP 36" (CR358A) reported error codes 21.2:13 and 86:01. Service station was heavily contaminated, cutter was activating intermittently without command, and incoming line voltage measured near 130V — well above acceptable operating range.

Solution: Replaced the service station, line sensor, and cutter assembly. Installed a line conditioner to regulate dangerously elevated input voltage. Loaded both paper rolls and tested the unit to confirm normal operation.

Problem: HP LaserJet M3035xs MFP reported recurring jams in the ADF paper path.

Solution: Technician cleared the jam from the ADF paper path, cleaned the feed components, and tested the unit to confirm reliable document feeding.

Problem: Compuprint 9300 laser printer presented with continuous form feeding on power-up, and a persistent 'busy' display state when attempting to print a configuration page.

Solution: Technician loaded forms and powered on the unit, observing non-stop continuous feeding. Rebooting with the network cable disconnected brought the printer to a ready state, but print jobs caused the display to hang at 'busy' for several minutes. A replacement network interface card was installed; int

Problem: HP Color LaserJet MFP M680f reported a broken flap on the paper delivery assembly beneath the control panel, disrupting normal paper transport.

Solution: Technician disassembled to access the paper intermediate delivery assembly, identified the paper standard delivery assembly (RM1-5615-000CN) as the failed component. The broken flap was temporarily stabilized with folded paper wedged on each side to restore function. Device was tested and printed su

Problem: HP LaserJet M607 producing intermittently light output on the right side of prints. New genuine HP toner cartridge and laser lens inspection ruled out consumable causes.

Solution: Prior repair had replaced the scanner/laser assembly due to toner contamination from a leaking cartridge; the issue recurred. No toner contamination was found internally on re-inspection. The high-voltage power supply (RM2-9335-000CN) was identified as the next diagnostic component, with additional

Problem: HP LaserJet 600 M602 reported recurring paper jams affecting normal operation.

Solution: Technician replaced the fuser, one tray 2 pickup roller, and two tray 2 feed rollers. Printer was cleaned and tested following parts replacement.

Problem: HP Color LaserJet M553 brought in with internal toner contamination requiring a full cleaning.

Solution: Technician cleaned toner deposits from the printer's internal components, installed customer-supplied OEM toner cartridge, and tested the unit to confirm clean, accurate output.

Problem: HP LaserJet M630 reported a recurring document not-feeding error on the ADF. The fault did not reproduce during the initial diagnostic visit.

Solution: ADF showed insufficient grip during inspection. Replaced the ADF kit (L2718A) and tested the unit; feeding function confirmed restored.

Problem: HP Color LaserJet E877DN MFP reported recurring paper jams that persisted even after the customer manually removed visible paper from the feed path.

Solution: Cleared a paper jam from the lower right access door, which provides access to the tray 4 and 5 pickup roller assemblies. Adjusted paper size guides on all tray cassettes and advised the customer that overfilling trays allows top sheets to shift, contributing to recurring jams. Cleaned and tested th

Problem: HP DesignJet 500 (C7770B) brought in with a shredded carriage belt and a broken carriage assembly latch — the latch that secures the carriage door over the printheads.

Solution: Replaced the carriage belt (part C7770-60014), repaired the carriage assembly latch, and performed general cleaning. Post-repair test confirmed normal operation. The magenta printhead registered low but functional; given the device's infrequent use, replacement was deferred.

Problem: HP LaserJet 9050 presented a 57.03 error accompanied by a grinding noise from the fuser area, indicating a power supply fan failure.

Solution: Technician diagnosed the 57.03 power supply fan error. Unit had previously been cannibalized for parts, leaving it uneconomical to repair. Fan was stripped from a donor unit where the power supply had already been replaced. Repair was closed without further progression.

Problem: HP Color LaserJet MFP M477fdn displaying a supply memory error on the yellow toner cartridge (CF378A) immediately after a user-installed replacement — no numerical error code present.

Solution: Technician cleaned the toner cartridge contacts and reset the supply. Customer was advised to source and test a different cartridge before further diagnosis. On follow-up visit, the user swapped in a new cartridge, which cleared the error and restored normal operation.

Problem: HP Color LaserJet MFP M575 displaying a 59.00.F0 error, indicating a motor or drive failure condition within the printing system.

Solution: Performed 59.00.F0 diagnostic tests; ITB contact and alienation component test failed, identifying the fuser drive (duplex) as the root cause. Replaced the fuser drive assembly (RM1-8134) and cleaned the machine. ITB kit was installed separately upon arrival.

Problem: Lexmark MS811DN presented two issues: a maintenance kit required alert on the display, and a vertical line of toner along the right edge of all printed pages.

Solution: Technician confirmed the toner line was caused by a defective imaging unit; third-party toner in use was also noted. Installed the maintenance kit and verified full print functionality. Customer arranged to source and install a replacement imaging unit separately.

Problem: HP LaserJet M608 reported completely unable to print, with the root cause unknown at the time of the service call.

Solution: Technician found a small torn piece of paper lodged in the gears near the fuser, causing repeated jams. Cleared all jammed and torn paper, replaced the tray 2 pickup roller (RM2-1275-000, RM2-6772-000), and installed a customer-supplied toner cartridge. Printer tested and confirmed operational.

Problem: HP Color LaserJet MFP M577 producing streaked pages across printed output.

Solution: Diagnosed streaking to a faulty black toner cartridge. Replaced the black toner, cleaned the machine, and tested print quality. Customer was advised to use OEM toner going forward.

Problem: HP DesignJet 800ps 42" presented with a frayed carriage belt and a recurring paper jam error code.

Solution: Relocated plotter to a stable work surface, replaced the torn 42" carriage belt, and resolved an 86:01 error traced to a deep scratch in the encoder strip. Sourced a compatible encoder strip from a decommissioned DesignJet 500 42" unit, restoring carriage operation. A broken carriage cover lock on t

Problem: HP LaserJet M4345 MFP in Trussville, AL presented with repeated paper jams, error codes 13.20.00 and 13.05.00, and a 'Mismatch Paper' message.

Solution: Technician cleaned the machine, swapped the feed roller assembly from a customer-supplied spare unit, and exchanged the onsite fuser. Neither substitution cleared the errors, indicating faulty replacement parts. The customer opted to source a replacement unit locally given lead-time constraints.

Problem: HP Color LaserJet M775 MFP producing lines on printed output. Fuser kit reported low and toner collection unit over half full.

Solution: Diagnosed lines traced to a failing transfer kit. Replaced transfer kit (CE524A), fuser kit (CE516A), and toner collection unit (CE980A). Reset all component counters and cleaned the scanner glass. Output verified after service.

Problem: HP Color LaserJet M454dn experiencing persistent network connectivity failure — printer obtained a link and pulled an IP address but could not be pinged or reached via web portal.

Solution: Technician replaced the formatter board (W1Y44-67901) and swapped the network cable and port; direct laptop connection was also attempted. With remote support, network settings could not be reset and connectivity was never restored. Root cause was determined to be a defective main board. Given the r

Problem: HP LaserJet 500 MFP M525 reported emitting persistent unusual noise during operation, with the customer also requesting a roller cleaning.

Solution: Technician disassembled the unit to fuser-removal depth and lubricated all rotating shafts identified as potential noise sources. A follow-up visit confirmed the noise had diminished significantly per the customer. Toner cartridge was replaced after ruling out gears and fuser as the source. Call clo

Problem: HP Color LaserJet M452dw reported cyan toner leaking internally, producing a heavy blue vertical band down the left side of every printed page.

Solution: Technician determined the recently installed cyan toner cartridge was defective. The original cartridge, near end-of-life, had been leaving marks on the right side of pages; the replacement exhibited a distinct vertical band on the left. Printer was cleaned and tested; the customer was directed to o

Problem: HP LaserJet M880 MFP reported recurring jams in the automatic document feeder.

Solution: Inspection revealed a paper clip lodged inside the document feeder assembly. The obstruction was removed, the ADF was cleaned, and feeding was tested and confirmed clear.

Problem: HP LaserJet M605 reported general performance issues. A maintenance kit had been installed by the customer, but the page count was never reset after the fuser swap.

Solution: Installed rollers from the customer-supplied maintenance kit, reset the maintenance count, removed obstructing seat cushion from the cabinet to allow tray clearance, and reconfigured the unit on the network. Device tested and confirmed operational.

Problem: HP Color LaserJet MFP M575 repeatedly jamming from Tray 2; customer had been defaulting to Tray 1 as a workaround.

Solution: Diagnosed Tray 2 feed failures on the HP CLJ MFP M575. Replaced the separation roller assembly (RM1-4966); jam cleared immediately upon reinstallation.

Problem: HP LaserJet M607 reported making unusual noise and experiencing repeated paper jams.

Solution: Installed a replacement maintenance kit, cleaned the machine thoroughly, and tested to confirm normal operation with jams and noise resolved.

Problem: HP DesignJet T830 36" displayed an open-cover/jam error with no error code. Power cycling moved the carriage to center before halting with the same fault.

Solution: Inspection revealed nicks in the trailing cable and a dislodged retaining spring. Trailing cable was discontinued; carriage assembly (part #F9A30-67061, which includes the trailing cable) was sourced and installed. Intermittent cutter jamming was resolved by removing and cleaning the cutter blades.

Problem: HP LaserJet MFP M525f displaying persistent 30.01.44 error, requiring repeated reboots to clear.

Solution: Partial hard drive erase did not resolve the issue. Performed a full hard drive format and firmware update, restoring normal operation. Reconfigured network and fax settings, and coordinated with support to restore scan-to-email functionality. Verified all functions before closing.

Problem: HP Color LaserJet Pro MFP M479fdn producing a gray cast across the top half of every page, with black toner smearing throughout printed output.

Solution: Replaced depleted cyan and magenta cartridges and a defective black toner cartridge. Print quality testing confirmed lines resolved and fuser and transfer belt functioning normally. At customer request, preventive maintenance included replacement of the tray 2 feed, pickup, and separation rollers (R

Problem: HP LaserJet M630 MFP in Cullman, AL was producing dirty copies on both scans and prints, and experiencing repeated paper jams.

Solution: Traced dirty output to a recently customer-replaced toner cartridge. Replaced feed and separation rollers in trays 2 and 3 (4 rollers total) to resolve jamming, then cleaned the unit and verified clean output through test prints.

Problem: HP LaserJet M603 producing a 5-inch-wide vertical gray toner haze band running the full length of each printed page. Replacing the toner cartridge did not resolve the issue.

Solution: Confirmed the image defect persisted after a toner cartridge swap, ruling out the cartridge as the cause. Diagnosed the main power supply unit as failing. Given parts availability concerns and repair cost, the unit was deemed uneconomical to repair. Customer was transitioned to a new HP LaserJet Ent

Problem: HP LaserJet P3015dn produced smudged output. The customer had already ruled out toner as the cause.

Solution: Diagnosed a failing fuser assembly (RM1-6274) as the source of image smearing, with worn pickup rollers (RM1-6323) and separation pads (RM1-6303) in trays 2 and 3. The customer opted to replace the unit rather than repair.

Problem: HP LaserJet P4015 laser printer in Cullman, AL required a replacement fuser unit.

Solution: Sourced and delivered a replacement fuser unit for the HP LaserJet P4015, retrieved from a regional office to complete the repair.

Problem: HP Color LaserJet Pro M277dw MFP reported a 59.C0 error, indicating a fault in the developer motor, transfer belt, or toner system.

Solution: Technician performed a remote diagnostic: customer removed all toner cartridges and powered on the device. The 59.C0 error persisted without cartridges installed, ruling out the toners and pointing to a faulty transfer belt (RM2-5907) or developer motor. Customer declined the repair quote and chose

Problem: HP Color LaserJet M855 reported excessive fan noise lasting approximately 10 minutes following high-volume print jobs.

Solution: Technician could not duplicate the noise on-site. Printed error log for analysis and researched all fan assemblies in the unit. An error code suggesting possible hard drive involvement was noted. Transfer belt was found to be low and flagged for replacement, as a worn belt can contribute to abnormal

Problem: HP LaserJet MFP M830 reporting paper lift errors on every tray after the customer attempted to clear a paper jam.

Solution: Diagnosed paper lift errors on the HP M830; confirmed tray 2 as the faulty unit by swapping trays and observing the fault follow the hardware. Relocated ledger media to tray 3 in slot 2 and configured the MP tray for legal. Verified operation via copies and prints. Admin and service menus were inacc