0x61000021OfficeJet Pro 6968

HP OfficeJet Pro 6968 error 0x61000021: How to Fix

The HP OfficeJet Pro 6968 error 0x61000021 occurs when the print cartridge carriage detects a mechanical obstruction or a sync error. It is a common stall that prevents operation until the path is cleared or the guide rail is cleaned. To resolve the HP OfficeJet Pro 6968 error 0x61000021, it is essential to follow a careful cleaning sequence to avoid damaging the carriage assembly.

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Common causes

  • 1Physical obstruction from paper scraps or stray stickers.
  • 2Buildup of dried ink on the carriage guide shaft.
  • 3Timing belt wear or loss of tension.
  • 4Optical sensor failure detecting position.

Solutions

Diagnostic

If you see code 0x61000021 on your display, the printer's motor cannot correctly position the carriage. Unlike general carriage jams, this specifically flags resistance, often from ink residue on the guide shaft or a loose timing belt. Check if the carriage is stuck at either end of the rail.

Troubleshooting

  1. Hard Reset: Disconnect the power cord while the unit is on.
  2. Physical Inspection: Carefully slide the carriage left and right to check for debris or jammed paper.
  3. Guide Shaft Cleaning: Use a microfiber cloth to wipe the steel guide shaft clear of old ink.
  4. Initialization: Reconnect the power and wait for the carriage to perform its autocheck.

Maintenance

Avoid using adhesive labels or thick, damp paper, as they leave residues that clog the carriage path. Regularly clear the carriage area of lint using low-pressure compressed air.

When to call a technician

If the error persists after shaft cleaning, the stepper motor or the carriage belt may be damaged. Technical disassembly is required to replace internal hardware.

Technical Specifications

  • Technology: Thermal Inkjet
  • Speed: 22 ppm (black) / 18 ppm (color)
  • Connectivity: USB, Ethernet, Wireless
  • Compatible Consumables: HP 902 / 902XL series
  • Usage: Home office and SMB
  • Official drivers / firmware

Steps to follow

  1. 1

    Hard reset

    Unplug the power cord for 30 seconds.

  2. 2

    Check path

    Ensure there are no obstructions in the carriage way.

  3. 3

    Clean axis

    Clean the carriage axis with a slightly damp cloth.

  4. 4

    Power on

    Turn on the printer to re-initialize.

Frequently asked questions

This indicates that the print carriage is encountering resistance during its motion cycle.

Yes, it prevents printing until the system detects the carriage can move freely.

It uses the HP 902 / 902XL ink series.

Gently clean feed rollers with a soft, lint-free cloth monthly.