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LaserJet Pro 400 M401 Repair Forum

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LaserJet Pro 400 M401 most helpful threads

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1 Answer

How can I dismantel the printer to repair the usb cable connector?

accepted LaserJet Pro 400 M401 1 Answer

Brothertech

Commented

Jul 15, 2021

commented Jul 15, 2021 by Brothertech

3 Answers

paper getting stuck under cartridge and between fuse and roller

accepted LaserJet Pro 400 M401 3 Answers

پشوتن پشوتن

Commented

May 6, 2022

commented May 6, 2022 by پشوتن پشوتن

4 Answers

Duplexing jams every time

accepted LaserJet Pro 400 M401 4 Answers

Jeff

Commented

Jan 27, 2026

commented Jan 27, 2026 by Jeff

2 Answers

Paper feed issues, what to replace

accepted LaserJet Pro 400 M401 2 Answers

Nick 100.6k

Commented

Mar 30, 2024

commented Mar 30, 2024 by Nick

1 Answer

Is this printer work past Catalina?

accepted LaserJet Pro 400 M401 1 Answer

Nick 100.6k

Accepted an answer

Oct 15, 2022

answer accepted Oct 15, 2022 by Nick

1 Answer

What is causing the printer to squeak while printing? *With video*

accepted LaserJet Pro 400 M401 1 Answer

Nick 100.6k

Accepted an answer

Mar 25, 2018

answer accepted Mar 25, 2018 by Nick

0 Answers

Image ghosting - what caused this?

unanswered LaserJet Pro 400 M401 0 Answers

Nick 100.6k

Edited by author

Dec 23, 2022

edited by author Dec 23, 2022 by Nick

4 Answers

How do I fix these sleep issues?

accepted LaserJet Pro 400 M401 4 Answers

jayeff 531.5k

Answer deleted

Dec 23, 2019

answer deleted Dec 23, 2019 by jayeff

2 Answers

After replacing rollers & pads still getting 'No paper in pickup' err

accepted LaserJet Pro 400 M401 2 Answers

Nick 100.6k

Answer edited

Apr 12, 2024

answer edited Apr 12, 2024 by Nick

2 Answers

Upgrade memory from 128 MB to 256 MB

accepted LaserJet Pro 400 M401 2 Answers

Nick 100.6k

Answer edited

Nov 10, 2023

answer edited Nov 10, 2023 by Nick

2 Answers

Why do I here a low whistle sound when printing?

accepted LaserJet Pro 400 M401 2 Answers

Renat 163

Answered

Jun 1, 2018

answered Jun 1, 2018 by Renat

1 Answer

My Hp Laserjet Pro 400 m401dn stopped working

LaserJet Pro 400 M401 1 Answer

Nick 100.6k

Edited

Oct 31, 2025

edited Oct 31, 2025 by Nick

1 Answer

Help for change voltage

LaserJet Pro 400 M401 1 Answer

Nick 100.6k

Commented

Jan 29, 2025

commented Jan 29, 2025 by Nick

1 Answer

Why the printer is printing while connecting to the system

LaserJet Pro 400 M401 1 Answer

Nick 100.6k

Answer edited

Sep 26, 2024

answer edited Sep 26, 2024 by Nick

1 Answer

It does not turn on

accepted LaserJet Pro 400 M401 1 Answer

oldturkey03 844.8k

Accepted an answer

Nov 10, 2023

answer accepted Nov 10, 2023 by oldturkey03

1 Answer

Vertical line on printed page. Have already repl. toner, transfer roll

accepted LaserJet Pro 400 M401 1 Answer

Nick 100.6k

Answer edited

Jul 23, 2023

answer edited Jul 23, 2023 by Nick

1 Answer

Printed pages often have rough texture and the ink if not dry

accepted LaserJet Pro 400 M401 1 Answer

oldturkey03 844.8k

Accepted an answer

Jun 18, 2022

answer accepted Jun 18, 2022 by oldturkey03

1 Answer

Prints from my 10.13 High Sierra MBP, but not 10 Home 1809.

accepted LaserJet Pro 400 M401 1 Answer

Nick 100.6k

Accepted an answer

Jun 18, 2022

answer accepted Jun 18, 2022 by Nick

1 Answer

How would I troubleshoot formatter board problems?

accepted LaserJet Pro 400 M401 1 Answer

Nick 100.6k

Answer edited

Jan 9, 2018

answer edited Jan 9, 2018 by Nick

1 Answer

How do I change the toner OPC drum?

accepted LaserJet Pro 400 M401 1 Answer

Nick 100.6k

Accepted an answer

Dec 31, 2017

answer accepted Dec 31, 2017 by Nick