Ricoh D391, Service Manual

Page: 334 / 490

5. Do a book binding and check the trimming cuts at the top, bottom, and fore edges.
6. Push [PSW2] to add 0.1 mm to the current value.
-or-
Push [PSW3] to subtract 0.1 mm from the current value.
7. LED1, LED2, LED3 light for 300 ms.
8. Look at LED1, LED2, LED3 to read the new adjusted value.
9. Repeat the steps above if you want to change the value again.
10. Push [PSW1] to write the new value into the EEPROM and shift to adjustment mode standby.
LED1 flashes at 1 sec. intervals, LED2, LED3 go OFF.
Adjustment Range Steps Default
±5.0 mm 0.1 mm 0 mm
11. Read the current setting from the LED display. (See "How to Read the LEDs".)
Adjustment 10: Square Cut Adjustment
Do this adjustment to correct the amount of rotation of the signature when you see that cuts are the edges
are not straight. These Service Mode settings affect the available settings in the User Tools.
When the signature is rotated three times for the bottom, top, and fore edge trimming the inertia generated
from the rotation of a heavy signature could make the signature rotate slightly beyond the optimum position
for trimming (prescribed by motor pulse count in the firmware), causing the cuts to skew and giving the
finished book a shape more like a trapezoid rather than a rectangle. Thicker and heavier signatures can
generate different amounts of inertia so adjustments in the Service Mode can be done for signatures which
4. Troubleshooting
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