Develop QC 2235 Plus Service Manual page 83

QC 2235plus Theory of Operation Ver.1.0 Mar. 2004
Key Name
[1] Tray2 Pick-up Roller
[2] Tray2 Lift-up Sensor (PC105)
[3] Polyethylene Sheet
[4] Tray2 Paper Empty Sensor (PC106)
[5] Tray2 Separator Roller
[6] Tray2 Paper Take-up Roller
[7] Tray2 Paper Take-up Sensor (PC107)
Tray2 Vertical Transport Sensor
[8]
(PC108)
[9] Vertical Transport Roller/2
[10] Tray2 Paper Feed Motor (M102)
[11] Tray2 Vertical Transport Motor (M103)
[12] Paper Lifting Plate
[13] Paper Guide
[14] Tray2 Paper Size Board (PWB-I2)
[15] Tray2 Board
[16] Tray2 CD Paper Size Sensor/L (PC102)
[17] Tray2 Set Sensor (PC103)
[18] Tray2 CD Paper Size Sensor/S (PC101)
[19] Tray2 Lift-up Motor (M101)
Tray2 Paper Near-Empty Sensor
[20]
(PC104)
Function/System
• Takes up a sheet of paper from Tray2
• Detects the upper limit of paper stack in Tray2
• Prevents paper skew
• Detects paper in Tray2
• Prevents double feed of paper from Tray2
• Takes up a sheet of paper from Tray2
• Detects paper at the paper take-up section of Tray2
• Detects paper at the transport section of Tray2
• Transports paper
• Drives the paper take-up mechanism
• Energized by the Tray2 Board (PWB-Z)
• Two-phase stepping motor
• Drives the paper transport mechanism of Tray2
• Energized by the Tray2 Board (PWB-Z)
• Two-phase stepping motor
• Plate on which the paper stack is loaded in Tray2
• Maximum paper capacity
Plain paper: 500 sheets
• Aligns the paper stack in Tray2
• Detects the paper size in the length direction in
Tray2
• Drives the motor
• Detects the paper size in the width direction in
Tray2
• Detects Tray2 slid in the correct position
• Detects the paper size in the width direction in
Tray2
• Drives the Paper Lifting Plate for ascent motion
• DC brush motor
• Detects the paper level in Tray2
2-53
Paper feed section