Olivetti d-Color MF4003 Service Manual page 645

d-Color MF4003/MF3303
• The paper taken up and fed in is conveyed onto the registration roller.
• The paper is pressed against the stationary registration roller so that a loop is formed in the paper. The feed roller is then stopped. The loop
thus formed in the paper corrects any mechanical skew in the paper.
• As the trailing edge of the paper reaches a point immediately before the feed roller, the feed roller is stopped.
2.3.5 Paper guide plate
• The trailing edge guide plate can be slid to the exact size in the length direction of the paper to be loaded.
• When the trailing edge guide plate lock release button is being pressed, slide the trailing edge guide plate to the left and right.
• The edge guide plate can be slid to the exact size in the width direction of the paper to be loaded.
• When the edge guide plate lock release lever is being held, slide the edge guide plate to the front and back.
[2]
[1]
[1] Trailing edge guide plate
[3] Edge guide plate
2.3.6 Paper size detection
• When the paper length guide of the drawer is moved, the circular paper length detection plate located on the bottom of the drawer turns.
• The paper length is detected by the lever that operates in conjunction with the paper length detection plate, and four paper length detection
sensors on the FD paper size board.
• Four paper length detection sensors determine the size of the paper loaded in the drawer.
• The sensor on the FD paper size board detects whether the drawer is open or not.
[5]
[4]
[1] Paper width guide (front)
[3] Paper length detection plate
[5] Paper width guide (rear)
2.3.7 Paper empty condition detection control
• At time that the tray 2 paper empty sensor is unblocked, a paper empty condition is detected.
• No mechanism is provided for detecting a paper near-empty condition.
Y119930-3
[3]
[4]
[2]
[4]
[1]
[2]
[3]
[2]
[4]
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P-71
P THEORY OF OPERATION > 2. PF-P20/PF-P21
Trailing edge guide plate lock release button
Edge guide plate lock release lever
Paper length guide
Tray 2 paper size sensor (PS5/2)
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Service Manual