Minolta EP1030 - Scanner Movement Details

1159SBM1205A
12-5. Scanner and 2nd/3rd Mirror Carriage Movement
e Scanner Drive Motor M4, a stepping motor, drives the Scanner Drive Cables fitted at:
the front and rear of the copier to move the Scanner and Mirrors Carriage.
e The speed of the Scanner varies for different zoom ratios (EP1031/EP1031 F only).
e Scanner Home Position Sensor PC11 detects the Scanner at its home position. If the
Scanner is not at the home position when the copier is turned ON, M4 is energized to
move the Scanner to the home position.
Scanner Motor M5 :
Scanner Drive
Peer Cable
Scanner Home Position
Sensor PC11
1159MO52AA
2nd/3rd Mirrors
Carriage
M-28
The Scanner starts its scan motion when the Start key is pressed. When the copier is
turned ON, it does not know where the Scanner is located and so it moves the Scanner
up to the point equivalent to 6 pulses towards the paper exit end from Scanner Home
Position Sensor PC11. If the Scanner is located beyond PC1 1 towards the exit end, the
copier moves the Scanner in the scan direction (to the right of PC11) and, when the
Scanner has moved for several pulses, the copier brings the Scanner back to the point
equivalent to 6 pulses to the left of PC11 . When the Start key is pressed, the copier
moves the Scanner at a low speed until it blocks PC1 1. Then, phase-shifted motor drive
pulses (1, 2, 4, and 5 of PWB-11 A) are applied to M4 to accelerate the Scanner. The
speed of the Scanner is changed by varying the width of the pulse applied to the motor
(EP1031,EP1 031 F only).
| | Controt Signal Blocked | Unblocked | WIRING DIAGRAM
pont [rwearsieas | ob | 4 [sp
SDH Mode
When the Start key is pressed, the copier moves the Scanner up to a point equivalent
to 43 pulses to the left (paper exit end) of PC11.
M-29