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Solving paper feed problems
135
The HP LaserJet
1100 Printer is
feeding multiple
sheets or jams
frequently from
the paper input
bin or single-
sheet input slot.
Paper guides are not adjusted properly. Slide the guides against the sides of the
stack in the paper input bin or against the
single sheet in the single-sheet input slot
to center the paper. Make sure the guides
are not adjusted too tightly.
Paper was not removed from the paper
input bin before filling the bin.
Always remove paper from the paper input
bin before refilling the bin.
The paper input bin is overfilled. Remove some of the sheets. The paper
input bin can hold up to 125 sheets of 20-
lb. (75g/m
2
) bond weight paper (less for
heavier paper) or from 7 to 10 envelopes.
More than one sheet was placed in the
single-sheet input slot.
Place only one sheet at a time in the
single-sheet input slot.
The paper was poorly cut by the
manufacturer and is sticking together.
“Break” the ream of paper by curving it
into an upside-down u-shape; this may
effectively decrease multifeeds. Also try
turning the paper around to feed the
opposite end first, or use a different type
of paper.
The paper does not meet HP’s
specifications for print media.
Make sure that the media meets
specifications detailed in HP’s media
specifications guide.
The output capacity was exceeded in the
paper output bin or front paper output slot.
Do not allow more than 100 sheets of 20-
lb (75g/m
2
) bond weight paper (less for
heavier paper) to fill the paper output bin.
The pickup roller is dirty. See “Cleaning procedures” in this chapter.
The pickup roller is damaged. Replace the pickup roller.
The separation pad is dirty. Clean the separation pad.
The separation pad is damaged. Replace the separation pad.
A sensor is not operating properly. Check the sensors to make sure that none
of them are jammed. If a sensor cannot be
“unjammed,” replace the sensor.
There is a problem in the paper path. Perform the “Paper path check,” which is
discussed later in this chapter, to
determine which parts should be
replaced.
Table 5-4. Solving paper feed problems
Problem Cause Solution