Ricoh JP5800 Service Manual page 159

PAPER FEED SECTION (MAIN BODY)
For the Paper Bank Unit - Tray 2
To ensure that the paper reaches the registration roller (main body) properly.
Changing the paper feed motor stop timing with SP6-143-1 changes the paper
feed length for the paper feed roller.
1. Turn on the main switch, then access the SP mode.
2. Enter SP6-143-1.
3. Increase or decrease the value on the display.
NOTE: 1) Before changing the value, check the current setting, in case you
need to recover the previous setting. (Default for SP6-143-1: "14")
2) Changing the value by +1 increases the paper feed motor's on-time
and feeds the paper an extra 0.3mm.
4. Leave the SP mode, then check the paper feed performance. If the problem still
occurs, repeat the above steps.
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1 March, 2000