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Technical Service Bulletin A172/A199 – 012
Page 2 of 2
Fixed Banding:
Possible Causes
1.
270 mm from the lead edge.
2.
320 mm from the lead edge.
Pitch Banding:
Possible Causes
1.
0.8 mm
2.
0.9 ~1.25
3.
1.4 mm
4.
1.9 mm
5.
15 mm
6.
20 mm
7.
30 mm
8.
375 mm
Possible Solutions
1.
Replace the gear 80z Drum Drive Gear (AB013912).
2.
Replace the Transfer Belt Drive Motor.
Possible Solutions
1.
Laser Path Mirror (A1092131) vibration.
2.
OPC Cleaning Unit vibration, possible solutions below:
Replace A1093647 - gear 16/17z worn
Replace A1093616 – gear 16z worn
Replace A1093646 – gear 16z worn
Replace A1093615 – Cleaning Brush Bushing worn
3.
Correct the Transfer drive timing belt tension.
4.
Replace the Bias Roller Idle gear (A1093616).
5.
Gear 80z Drum Drive Gear (AB013912).
6.
Cleaning Brush Rotation problem.
7.
Replace the Gear 80z Drum Drive Gear (AB013912).
8.
Replace the OPC drum.
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