Appendix 3 Periodic Banding Table - Caused By Gears And Rotating Parts - HP Indigo press 3050 Troubleshooting Manual

Appendix 3 Periodic banding table – caused
by gears and rotating parts
This table is used to identity a gear or pulley / other component, when you know the frequency of the banding
or misregistration. How to use this table:
1. Measure the frequency of the banding or misregistration using the "Periodic banding frequency
calculation" on page 11.
2. Identity the gear or pulley / other component in the table below.
•
If table shows that the cause is a gear or pulley then:
Identify the gear using the "Appendix 2 Gear Transmission Schemas" on page 18.
•
If the table shows that the cause is another component (shown in grey) then:
Investigate the relevant component for possible defect or malfunction.
Gear/Pulley Gear/Pulley
Banding Banding
Frequency Frequency
[mm] [Hz]
1624.0 0.75
1107.3
1072.2 1.136
1072.2 1.136
529.6
529.6
529.6
133.5 9.07
131
112.8
103.6 11.8
101.5
101.5
99.8 12.2
93.1
89.6 13.6
75.2 16.2
67.3 18.1
66.6 18.3
56.4 21.6
56.4 21.6
52.4 23.3
EN
Gear or Pulley /
Other component
Rotor B pulley
1.1
Rotor A pulley
Rotor A pulley
2.3 Helical Gear ITM
2.3 Gear Impression
2.3 ITM Spur Gear
Developer pulley
9.3 Developer roller
11 Impression brake gear
Hand wheel gear
12 Gear Plastic "frog"
12 Small drive Gear
Timing pulley
13 Impression brake gear
Gear Imp/Paper feed
BID motor pulley
Sponge pulley
Timing pulley
Flywheel pulley
Flywheel gear
Squeegee roller
Appendix 3 Periodic banding table – caused by gears and rotating parts 19
Vmachine (process) = 1218 [mm/sec]
Gear PIP
No. of Gear type /
teeth Sub-assembly
48 Paper feed
148 Drive
32 Paper feed
114 Paper feed
74 Drive
114 Drive
114 Drive
34 BID
60 BID
24 Paper feed
22 Drive
108 Drive
14 Drive
24 Cleaning
19 Paper feed
19 Paper feed
19 BID
17 BID
16 Cleaning
44 Drive
60 Drive
24 BID
Press type
3050
5000/3050
3050
3050
5000/3050
5000/3050
5000/3050
3050/5000
3050/5000
5000
3050/5000
3050
3050/5000
3050/5000
5000
3050
3050/5000
3050/5000
3050/5000
3050
3050
3050/5000