Manual Feed Paper Width Detection Mechanism - Minolta CF910 Service Manual

1154SBM1406A

14-6. Manual Feed Paper Width Detection Mechanism

• Manual Feed Paper Size Detecting Sensor UN24 is built into the Multi Bypass Table.
The output voltage from UN24 is varied as the Edge Guides on the Multi Bypass Table
are moved. The copier knows the width of the paper placed on the Multi Bypass Table
according to the output from UN24.
• The paper width reference position is set using "Manual Paper Width" of "Setting" avail-
able from the Service mode.
When Edge Guides are
Moved Fully Outward
<From Underneath>
<Control>
• The UN24 output voltage is applied to pin 10 of PJ7K on Master Board PWB-K. Using
this voltage value, the copier determines the width of the paper placed on the Multi
Bypass Table.
Control Signal
UN24 PWB-K PJ7K-10
Point 1
• Width of standard-size paper selected on the control panel: (A)
• Width of paper on the Multi Bypass Table detected: (B)
When (A) minus (B) is within ±10 mm, the copier takes (A) for the paper width.
When (A) minus (B) is more than ±10 mm, the copier takes (B) for the paper width.
Point 2
• Width of nonstandard-size paper set on the control panel: (A)
• Width of paper on the Multi Bypass Table detected: (B)
When (A) minus (B) is within ±15 mm, the copier takes (A) for the paper width.
When (A) minus (B) is more than ±15 mm, the copier takes (B) for the paper width.
Edge Guides
UN24
<From Underneath>
1154M040AA
Wiring Diagram
9-D
M-86
When Edge Guides are
Moved Fully Inward
UN24
1154M041AA