Brother International HL-2400C Service Manual - Page 294
Vertically Staggered Image
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I-11 Vertically Staggered Image Phenomenon Printed image staggered in the vertical direction as shown in print sample (11) of Fig.8-2. Main Causes 1) Shock or vibration applied to the printer. 2) Failure of the scanner unit; Vibration from rotation of the scanner motor. Countermeasures 1) Do not apply shock or vibration to the printer body. 2) Installation location should be appropriate with no possibility of shock or vibration. 3) Replace the scanner unit with a new one. (See Section 4.5.2 of Chapter VII.) I-12 Banding Phenomenon Banding line appears in the horizontal direction as shown in print sample (12) of Fig.8-2. Main Causes This is a transfer failure due to the shock caused when the OPC belt seam passes over the cleaning blade. Belt seam Fig.8-8 Countermeasures Replace the OPC belt cartridge with a new one. (See Section 2.1 of Chapter VI.) VIII-49