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Chapter 7
7-5
7.4 Manual Feed Pickup Unit
7.4.1 Outline
0013-1112
iR1020J / iR1024J / iR1020 / iR1024 / iR1024A / iR1024N / iR1024F / iR1024i / iR1024iF
Paper is picked up from the manual feed tray under the control of the CPU on the DC controller PCB and using the drive of the main motor (M1). When the manual
feed pickup solenoid (SL5) goes ON, the drive of the main motor (M1) is transmitted as far as the
manual feed pickup roller assembly to rotate the manual feed pickup roller.
The sheets of paper stacked in the manual feed tray are lifted by the work of a spring and forced against the manual feed pickup roller. Thereafter, a single sheet of
paper is separated by the work of the manual feed pickup roller and the separation pad, and is moved as far as the registration roller.
After the paper passes a registration sensor (SR11), the paper reaches the registration roller. At this time the registration roller is at rest, causing the leading edge
of the paper to butt against it to form an arch.
The DC controller PCB turns on the registration clutch (CL1) at specific timing to transmit the drive of the main motor to the registration roller, thereby moving
the paper ahead. The paper reaches the delivery tray after moving through the transfer, separation, and fixing/delivery assemblies.
The deliver tray has a delivered paper full sensor (SR10) to detect that the delivered sheets are stacked fully.
When the total height of the delivered sheets reaches the specified value and the delivered paper full sensor (SR10) turns on, this machine detects occurrence of an
error and displays an error message on the LCD.
F-7-4
7.4.2 Retry Pickup
0013-1113
iR1020J / iR1024J / iR1020 / iR1024 / iR1024A / iR1024N / iR1024F / iR1024i / iR1024iF
If the registration sensor (SR11) does not detect paper within a specific period of time after the manual feed pickup roller starts to rotate, the machine will rotate
the manual feed pickup roller once again to execute a retry pickup operation. If the registration sensor (SR11) still does not detect the leading edge of paper after
executing a retry pickup 3 times, the machine will identify the condition as a jam and will indicate a jam message on the LCD in its control panel.
7.4.3 Detecting the Size of Paper
0013-1114
iR1020J / iR1024J / iR1020 / iR1024 / iR1024A / iR1024N / iR1024F / iR1024i / iR1024iF
The size of paper in the manual feed tray is detected using the registration sensor (SR11) with reference to the length of paper. In fax mode, if paper of a size different
from the size selected from the control panel is placed, the DC controller will identify a paper size
mismatch at the end of printing and indicate a message on the LCD.
SR10
SR11
SR5
SL2
CL1
M1
SR12
Summary of Contents for iR1020 Series
Page 1: ...Sep 1 2008 Service Manual iR1020 1021 1024 1025 Series ...
Page 2: ......
Page 6: ......
Page 17: ...Chapter 1 Introduction ...
Page 18: ......
Page 20: ......
Page 49: ...Chapter 1 1 29 ...
Page 50: ......
Page 51: ...Chapter 2 Installation ...
Page 52: ......
Page 54: ......
Page 61: ...Chapter 2 2 7 ...
Page 62: ......
Page 63: ...Chapter 3 Basic Operation ...
Page 64: ......
Page 66: ......
Page 73: ...Chapter 3 3 7 ...
Page 74: ......
Page 75: ...Chapter 4 Original Exposure System ...
Page 76: ......
Page 78: ......
Page 87: ...Chapter 5 Laser Exposure ...
Page 88: ......
Page 90: ......
Page 94: ......
Page 95: ...Chapter 6 Image Formation ...
Page 96: ......
Page 98: ......
Page 103: ...Chapter 7 Pickup Feeding System ...
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Page 120: ......
Page 121: ...Chapter 8 Fixing System ...
Page 122: ......
Page 124: ......
Page 135: ...Chapter 9 External and Controls ...
Page 136: ......
Page 138: ......
Page 151: ...Chapter 10 Original Feeding System ...
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Page 154: ......
Page 156: ...Chapter 10 10 2 M2001 ADF motor Symbol Name ...
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Page 171: ...Chapter 11 e maintenance imageWARE Remote ...
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Page 184: ......
Page 185: ...Chapter 12 Maintenance and Inspection ...
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Page 190: ......
Page 191: ...Chapter 13 Standards and Adjustments ...
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Page 201: ...Chapter 14 Correcting Faulty Images ...
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Page 215: ...Chapter 15 Self Diagnosis ...
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Page 225: ...Chapter 16 Service Mode ...
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Page 232: ...Chapter 16 16 2 Makes various status checks such as contact sensor sensor and print status ...
Page 278: ......
Page 279: ...Chapter 17 Upgrading ...
Page 280: ......
Page 282: ......
Page 297: ...Chapter 18 Service Tools ...
Page 298: ......
Page 299: ...Contents Contents 18 1 Service Tools 18 1 18 1 1 Special Tools 18 1 ...
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Page 303: ...Sep 1 2008 ...
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