Minolta EP1085 - 4 Th Mirror Movement

FrameMaker Ver.5.5(PC) EP1054/EP1085/EP2030 GENERAL, MECHANICAL/ELECTRICAL
98.04.24
M-26
1174SBM0906A
The 4th Mirror is moved to vary the conjugate distance for a particular zoom ratio by driving
the rack-and-pinion gears at the front and rear ends of the mirror using the Mirror Motor
(stepping motor). The Levers of the Holder to which the Mirror is mounted slide along a
tilted rail to change the Mirror angle. This ensures that the light strikes the surface of the PC
Drum in the direction of the normal, thereby preventing resolution from being degraded.
The Mirror Reference Position Sensor is used to control the position of the 4th Mirror. It
ensures that the Mirror is located at the home position when the copier is turned ON.
9-6. 4th Mirror Movement
Control Signal Energized Deenergized WIRING DIAGRAM
M7 PWB-A PJ16A-2B L H 8-B/8-F
Control Signal Blocked Unblocked WIRING DIAGRAM
PC86 PWB-A PJ22A-5 L H 12-A
1139M038AA
Tilt Adjusting Screw
Levers
Mirror
Motor
M7
Drive Shaft4th Mirror
Lever
1139M037AA
Mirror Reference
Position Sensor (PC86)