From Paper Near End To Paper End - Ricoh B022 Service Manual

From paper near end to paper end

When paper is used up, the pressure on the bottom plate reduces, so the upward
pressure increases, causing the pressure of the feed roller against the top of the
stack to increase.
However, for small paper sizes, because of the previous correction (600 ms
reverse rotation of the lift motor), the pressure between the feed roller and the top
of the stack becomes too small at some point as paper is used up, and this could
cause paper feed problems. This condition is more significant for smaller paper
sizes, such as A5, as shown in the diagram.
If a paper feed problem occurs when the stack is partly used up, the pressure can
be re-adjusted (@ in the graph) using the following SP modes. The default is set for
50 sheets (at the near-end point)
The lift motor rotates forward for the time specified by the SP mode to increase the
pressure.
Paper Size
HLT/A5 or smaller
1st paper tray
2nd paper tray
3rd paper tray
4th paper tray
Default (all trays)
Also, the point at which this adjustment is applied (near-end [50 sheets], 25% full,
75% full) can be selected (A in the graph) using the following SP modes.
Paper Size
HLT/A5 or smaller
1st paper tray
2nd paper tray
3rd paper tray
4th paper tray
Default (all trays)
SM
Small Size
(default setting)
SP1908-4
SP1909-4
SP1910-4
SP1911-4
400 ms
(default: not used)
Small Size
(default setting)
SP1908-6
SP1909-6
SP1910-6
SP1911-6
Near-end
(default: not used)
2-53
Middle Size
None
(default setting)
SP1908-5
SP1909-5
SP1910-5
SP1911-5
300 ms
Middle Size
None
(default setting)
SP1908-7
SP1909-7
SP1910-7
SP1911-7
Near-end
PAPER FEED
B022/B027