Printing Defects

  • Problem Cause Solution How common* Comments
    background scatter fuser assembly is bad (esp. on fusers with ceramic heating elements) do half-way test to determine if it is the fuser.
    background scatter Toner cartridge is defective Install a new toner cartridge 10
    background scatter transfer Roller is dirty or worn. A worn transfer
    Roller can cause background scatter due to improper bias voltages
    Clean the transfer Roller using a dry, lint-free cloth. DO NOT touch the transfer Roller with your fingers. If the problem persists, replace the transfer Roller Assembly 2

    *On a scale of 1-10, how often this problem occurs (10 being most likely).

  • Problem Cause Solution How Common* Comments
    black pages DC Controller PCA is defective. If the DC Controller turns on the laser beam continuously, the entire surface of the Photosensitive drum is neutralized causing a completely black page Replace the DC Controller PCA 10
    black pages Defective toner cartridge Replace the toner cartridge 9 4
    black pages High voltage power supply circuit is defective (not supplying the correct negative voltage) Replace the High Voltage Power Supply PCA 10 some printers have the high voltage power supply on the DC controller.
    black pages High voltage contact springs are dirty or defective. The high voltage contacts are mounted on the High Voltage Power Supply PCA and protrude into the toner cartridge cavity Inspect and clean the high voltage contacts. If damaged, replace the High Voltage Power Supply PCA. 2
    black pages Laser/Scanner Assembly is faulty (turning laser on continuously) Replace the Laser/Scanner Assembly 5
    black pages Light is leaking into the printer Make sure that all covers are in place 2

New Cartridges Available

The following laser cartridges are available Now.

For Brother

TN750 8K Compatible with Brother DCP-8110DN / 8150DN / 8155DN / Brother HL-5450DN / 5470DW / 5470DWT / 6180DWT / Brother MFC-8510DN / 8710DW / 8910DW / 8950DTW / 8950DW / 8950DWT

For HPs

CE390A 10K Compatible with HP Laserjet M4555h, MFP/M4555t, M4555fskm
CE390X 24K Compatible with HP Laserjet M4555h, MFP/M4555t, M4555fskm

5949A/7553A 3K Universal compatible with HP LJ 1160/1320/3390/3392/P2015/M2727

For Samsung

D205L 5K Compatible with ML-3310/3710/3712/SCX-4833/5637/5639/5739
D103L 2.5K Compatible with ML-2950/2955/2956/2545/SCX-4728/4729
CLT407(YMCK) 1K/1.5K Compatible with CLP-320/325/326/321/CLX-3186/3185/3285
D101S 1.5K Compatible with ML-2161/2156/2160/2165/2168/SCX3400/3405/3407

For Lexmark

E260 3.5K Compatible with E260/360/460/X264/363/364/463/464

Any question, please contact us at

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