Brother International HL-2600CN Service Manual - Page 336
print sample 9 of Fig.8, of VI, of, VI
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I-9 Black Line / Blur in the Image Phenomenon Fine black line or blur appears in the printed image as shown in print sample (9) of Fig.82. Main Causes 1) The corona wire of the charger unit is dirty. 2) OPC belt surface is damaged. 3) Foreign particles (paper dust, etc.) are stuck between the cleaning blade and OPC belt. 4) Debris adhering to the base of the toner cartridge's developer roller where it contacts with the OPC belt. Countermeasures 1) Remove the OPC belt cartridge. 1-1) Clean the charger unit (corona wire). (See Section 1.2.3 of Chapter VI.) 1-2) Replace the OPC belt cartridge with a new one. (See Section 2.1 of Chapter VI.) 2) Clean the surface of the developer roller. I-10 Vertical Line Phenomenon Vertical line appears in the printed image as shown in print sample (10) of Fig.8-2. Main Causes 1) Foreign particles (dust, etc.) adhering to the parts located around the transfer drum 2, and consequently in contact with the toner image on the transfer drum 2. Countermeasures 1) Clean the paper discharger unit. (See Section 1.2.3 of Chapter VI.) 2) Clean the charger unit (corona wire) of the OPC belt cartridge. (See Section 1.2.4 of Chapter VI.) 3) Remove the drum cleaner 2, and then, clean the inside and outside of waste toner feeder. 4) Clean the separator pawl.
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