PAPER FEED 10 August, 2001
2-52
Feed Pressure Adjustment
The pressure can be adjusted to solve a paper feed problem. This adjusts the
amount of lift motor reverse just after the lift sensor is activated when lifting the
stack to the paper feed position. To apply less pressure to the top of the stack, the
amount of reverse should be increased.
Effect of the Amount of Remaining Paper
From tray full to paper near-end
The pressure between the top of the stack and the fed roller also depends on the
amount of remaining paper, especially for small paper sizes, as shown in the above
graph. The pressure for A5 changes significantly between stack heights of 500
sheets and 50 sheets, but not much for A4 or A3 paper.
For 500 sheets of A5, the pressure is too high. To counter this, the lift motor
reverses 600 ms (! in the graph), as explained in the previous section. The SP
modes in the following table are for solving feed problems that occur when the tray
is between full and near-end.
Normal Small Size Middle Size
Paper Size
Greater than HLT/A5
(default setting)
HLT/A5 or smaller
(default setting)
None
(default setting)
1st paper tray SP1908-1 SP1908-2 SP1908-3
2nd paper tray SP1909-1 SP1909-2 SP1909-3
3rd paper tray SP1910-1 SP1910-2 SP1910-3
4th paper tray SP1911-1 SP1911-2 SP1911-3
Default (all trays) 200 ms 600 ms
200 ms
(default: not used)
Paper
Amount
Feed Pressure
500 sheets75 %25 %
50 sheets
(Near-end)
0
1
2
3
A5 size
A4 size
A3 size
B027D518.WMF
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