Worm marks on HP Coated Paper with light area fills
Light bands (S-shaped) in the direction of the media axis when light area fills are printed, causing an
unacceptable print-quality defect.
●
Print the Service Configuration Print and check whether the ambient humidity is very low (below 30%).
Increasing humidity may help to reduce the severity of the problem.
NOTE: The paper is causing the problem and not the printer. Do not attempt to replace printer parts to
solve this problem.
Solving paper-handling problems
The front panel keeps indicating that paper Is misaligned or incorrectly positioned.
●
The roll may be loaded the wrong way. The paper should load over the roll toward you.
●
Check that the paper is correctly loaded onto the spindle.
●
The paper may be loaded at an angle. The right-hand edge must be aligned with the blue line on the
Print Platen.
NOTE: Ensure that the paper is wrapped tightly on the roll. This is a very important step to remember
because if this is not done, the paper may be loaded at an angle, causing the paper to be rejected.
●
The Line Sensor may be malfunctioning. See
The Line Sensor has problems detecting paper on page 10.
Difficult to load paper: “Too much skew”
If you encounter a high failure rate when loading paper and the front panel reports “Too much skew” it is
likely that:
●
The encoder strip must be cleaned (this can be carried out by the customer using the User Maintenance
Kit).
●
The Line Sensor must be cleaned.
●
The Blue Line calibration must be performed. See
Platen blue line calibration on page 129.
How to read the power switch LEDs
In certain circumstances, the LEDs located on top of the power switch (located at the rear of the printer)
indicate the status of power supply to the printer.
1. When only the Amber LED is On:
14 Chapter 2 Troubleshooting ENWW
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