The machine controls the laser scanner motor so that the motor rotates at a specific speed using its motor speed control mechanism and reference signal generation

mechanism found inside the Video controller PCB.

The motor speed control mechanism detects the speed detection signal (FG, BD), and compares it against the reference signal generated by the reference signal

generation mechanism, thereby controlling the acceleration signal (ACC) and the deceleration signal (DEC) to make sure that the motor rotates at a specific speed.

The machine checks different references for speed detection to suit the state of the printer unit, ultimately reducing the length of time used to control the scanner

motor speed. The FG signal is a detection signal used to roughly adjust the scanner motor speed. The BD signal, on the other hand, is a detection signal used to

finely adjust the motor speed.

ERROR CODE:

E110 (scanner motor error)

The FG signal is not detected a specific period of time after the scanner motor starts up.

The FG signal is not detected while the scanner motor is rotating at a constant speed.

6.3.4 Controlling the Laser Shutter

6.3.4.1 Controlling the Laser Shutter

iR7105 / iR7095 / iR7086

The machine is equipped with a mechanism to protect against exposure of its inside by laser light when the primary changing assembly front cover is opened. When

the primary changing assembly front cover is opened, the protrusion attached to the cover releases the laser shutter, causing the laser shutter to close so that the

laser path is closed.

J1319

J1317

J1406

Reference

Motor

signal

speed

generation

control

segment

ASIC