Rice Lake Okidata 320-390-420 Turbo - Service Guide - Manual (Page 94)

Gap between the contact and the monitor.
0.3mm or more
Verify the following.
Make sure that the gap between the contact and the motor PCB is 0.3 mm or more.
At the time of printing test, make sure that the contact touches the motor PCB and it enters reduced
speed mode when the adjust lever is set to range 2 and 4.
4-2 Gap between the platen and the paper pan.
1±0.5
Verify the following.
(1) When the change lever is set at Friction position, the gap between the platen and the paper pan at the
rear side shall be 1±0.5mm.
(2) When the change lever is set at Rear or Bottom position, the gap between the platen and the paper
pan at the front side shall be 1±0.5 mm.
4-3 Gap between the platen and the pressure roller