Cassette Pickup Control
The DC Controller rotates the Pickup Roller by rotating the Pickup Motor (M2).
The Pickup Arm is lifted and lowered to feed the paper by rotating the Pickup Cam with the Pickup Solenoid (SL1).
Cassette Double Feed Prevention Mechanism
■ Overview
This machine employs the retard separation method for the cassette pickup double feed prevention mechanism.
The retard separation method of this machine is a method that prevents paper double feeds by using the Cassette Separation
Rollers without drive. The Cassette Separation Rollers are driven and rotated by the Cassette Feed Roller.
● At Normal Time
The Cassette Separation Roller is driven by the Cassette Feed Roller drive via paper. This causes the Cassette Separation Rollers
to rotate in the feed direction.
● During Double Feed
Since the friction force between sheets of paper becomes weaker when there are multiple sheets of paper, the Cassette Feed
Roller drive force transmitted to the Cassette Separation Roller becomes extremely weak. Since force suppressing rotation is
applied to the Cassette Separation Rollers of this machine, this mechanism does not allow rotation by the weak drive force
transmitted from the Cassette Feed Roller during double feed. The Separation Rollers therefore do not rotate and do not pickup
double feed paper.
Paper
Lifting Plate
The roller does not rotate.
<When double feeding occurred>
<At normal condition>
Cassette Feed Roller
Cassette
Separation Roller
Paper Detection
Description
Paper presence/absence on the Cassette is detected by the Cassette Paper Sensor(PS1).
Multi-purpose Tray Pickup Control
The Multi-purpose Tray pickup feeds paper from the Multi-purpose Tray one sheet at a time into the machine.
The following describes the operation of the Multi-purpose Tray pickup.
1. When a print command is input from the Main Controller, the DC Controller rotates the Pickup Motor (M2).
2. When the DC Controller turns the Multi-purpose Tray Pickup Solenoid (SL3) on, the Multi-purpose Tray Pickup Roller rotates
and paper is picked up.
2. Technical Explanation (Device)
41
Summary of Contents for imageCLASS LBP325dn
Page 11: ...Safety Precautions Laser 2 Power Supply Lithium Battery 3 Toner Safety 3 Notes on works 4...
Page 15: ...Product Overview 1 Product Lineup 6 Features 7 Specifications 8 Parts Name 11...
Page 141: ...5 Remove the Right Cover Unit 5 Parts Replacement and Cleaning 131...
Page 187: ...Adjustment 6 Actions at Parts Replacement 178...
Page 204: ...Error Jam Alarm 8 Overview 195 Error Code 197 Jam code 205 Alarm Code 208...
Page 219: ...Service Mode 9 Overview 210 Service Mode 214...
Page 243: ...Installation 10 Installation of the host machine 234...