Kyocera FS-1020 Light or Faded Print – How To Clean A FS1020 Laser Unit

This Kyocera FS1020 printer was brought to me because it wasn’t working but the primary fault turned out to be a paper jam. However the printer had some other problems: Light print – Caused by a dirty laser assembly. Dark vertical lines – caused by a dirty charge unit corona wire. (The fix is covered in…

HP Colour Laserjet CM2320 Cartridge Alignment Problems

Cartridge alignment problems and fuzzy print are common faults with the HP Colour LaserJet CP2020, CM2320fxi, CP2025dn, CP2025x, CM2320n, CM2320nf and CP2025n series (and any other Hewlett Packard colour printer that takes the CC530A, CC531A, CC532A and CC533A  cartridges. There are a few different causes of this problem: Faulty or worn toner cartridges.  To calibrate or…

Brother Mono Laser Light Printing Problem

If you have a Brother mono (black only) printer that is printing light it may be you have a build up of dust on the laser glass. The fix for this problem is easy and only requires a lint free cloth. 1.  Turn off the printer power switch and unplug the printer from the power outlet. 2.  Open…

Brother HL-5140 Laser Unit Cleaning

In cases where your printer is printing light or light on one side of the page you may have a dirty/dusty laser unit. This can be fixed by cleaning the mirrors and the polygon mirror surfaces. This is a quick guide on how to clean a laser unit. It applies to the Brother HL5140 but…

Brother MFC-9440CN Laser Unit Cleaning Guide

The laser glass slits can get dirty and affect copy quality over time on any laser printer (usually causes fading of prints). On Brother MFC9440CN it is easy to clean the glass slits. First remove the drum unit and toners. Inside the printer above the drums you will see 4 slots. Take a clean lint free cloth…