January 2016
3-18
WorkCentre WorkCentre 4150/4250/4260WorkCentre 4150/4250/42604150/
IQ14, IQ15
Image Quality
IQ14 Partial Blank Image (Periodic) RAP
Use this RAP when the printed sheets have blank areas that form a regular, or repeated, pat-
tern.
Procedure
WARNING
Switch off the electricity to the machine. Disconnect the power cord from the customer
supply while performing tasks that do not need electricity. Electricity can cause death or
injury. Moving parts can cause injury.
Perform the following:
1. Measure the distance between the image and the defect. Refer to Table 1 (4150) or Table
2 (4250/4260) to determine the possible cause of the defect.
2. Install new components as necessary.
IQ15 Different Image Density (Left and Right) RAP
Use this RAP when the printed sheets have different areas of image density across the pro-
cess direction. An example is shown in Figure 1.
Figure 1 Image density
Procedure
WARNING
Switch off the electricity to the machine. Disconnect the power cord from the customer
supply while performing tasks that do not need electricity. Electricity can cause death or
injury. Moving parts can cause injury.
Perform the following:
1. The transfer roller pressure may be unbalanced. Check the spring pressure at each end,
PL 7.35 Item 22 and PL 7.35 Item 26. Install new components as necessary, PL 7.35.
2. Shake the toner cartridge to evenly distribute the toner. If necessary, install a new toner
cartridge, PL 9.10 Item 2.
3. Make 10 blank copies to clean the xerographic drum. If necessary, install a new xero-
graphic module, PL 9.10 Item 1.
4. Perform ADJ 14.1 Shading Adjustment.
Table 1 Defect distance
Defect distance Roller Component Parts List Ref.
94mm (3.7 inches) Xerographic drum Xerographic module PL 9.10 Item 1
38mm (1.5 inches) Charge roller Xerographic module PL 9.10 Item 1
44mm (1.7 inches) Supply roller Xerographic module PL 9.10 Item 1
57mm (2.2 inches) Transfer roller Transfer roller PL 7.35 Item 19
126mm (4.9 inches) Heat roller Fuser assembly PL 10.26 Item 13
155mm (6.1 inches) Pressure roller Fuser assembly PL 10.26 Item 23
Table 2 Defect distance (4250/4260)
Defect distance Roller Component Parts List Ref.
94mm (3.7 inches) Xerographic drum Xerographic module PL 9.10 Item 1
38mm (1.5 inches) Charge roller Xerographic module PL 9.10 Item 1
44mm (1.7 inches) Supply roller Xerographic module PL 9.10 Item 1
57mm (2.2 inches) Transfer roller Transfer roller PL 7.35 Item 19
126mm (4.9 inches) Heat roller Fuser assembly PL 10.30 Item 10
155mm (6.1 inches) Pressure roller Fuser assembly PL 10.30 Item 31
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