Chapter 8
8-20
SL4: Multi lifting plate up/down solenoid
M6: Registration multi pickup motor
A paper that is picked up from the manual feeder pickup assembly moves forward the distance where the predetermined arching (5.5 mm) is added after detecting
the leading edge with the pre-registration sensor (PS7). Then, the paper stops at the registration roller once by turning OFF the manual feeder pickup clutch (CL5).
As the registration roller turns ON, the manual feeder pickup clutch (CL5) turns ON. After the registration roller feeds a paper for the predetermined amount (55
mm), turn OFF the manual feeder pickup clutch (CL5).
The pickup from the manual feeder pickup assembly is executed either the normal speed (55 mm/min) or the half speed (71.5 mm/min) depending on the media type.
In case of the transparency, pickup is executed with the half speed and the paper is fed to the registration roller with the same speed. If there is another paper, pickup
is executed by setting back the registration multi pickup motor speed (M6) to half when the first paper moves 5 mm downstream from the registration roller.
Reference:
The sensor that detects the last paper is not equipped with the manual feeder pickup unit of this machine.
8.6.2 Basic Sequence of Operation
0014-0320
/ / / / iR C3380i / iR C3380 / iR C2880i / iR C2880
The multi-pickup roller starts to rotate when the manual pickup clutch (CL5) goes on to start upper separation to pick up a single sheet of paper. When the leading
edge of the sheet reaches the pre-registration sensor (PS7) and is moved a specific distance, the manual pickup clutch goes off, causing the sheet to arch in the
registration roller area.
When the registration clutch (CL6) goes on, the manual feed pickup clutch (CL5) once again goes on to pick up paper. The manual feed pickup clutch (CL5) goes
off immediately before the trailing edge of paper moves past the manual feed pickup roller; thereafter, the registration roller serves to pull off the paper.
F-8-23
8.6.3 Identifying the Paper Size
0014-5227
/ / / / iR C3380i / iR C3380 / iR C2880i / iR C2880
The width of paper is detected with reference to the output of the variable resistor (SVR1), which operates in conjunction with the movement of the side guide.
The side guide in the manual feed tray is set when the user moves it to place paper in the cassette.
F-8-24
[1] Side guide (rear)
[2] Stop arm
[3] Center gear
[4] Side guide (front)
[5] Variable resistor (SVR1)
[6] Manual feed tray
Calculate the paper width from the A/D converted value of the manual feed volume.
Register the A/D converted values of 3 points (paper width of A4, A4R, and A6R) that are the reference values to the backup RAM beforehand. (Execute the setup
in the service mode.)
Service Modes:
- Register the reference points
COPIER > FUNCTION > CST > MF-A4R
COPIER > FUNCTION > CST > MF-A6R
COPIER > FUNCTION > CST > MF-A4
- Adjustment of the foregoing reference points
LSTR
Registration
clutch (CL6)
Manual feed pickup
clutch(CL5)
Multi lifting plate up/
down solenoid (SL4)
Registration multi
pickup motor (M6)
Pre-registration
sensor (PS7)
Print start
[1]
[2]
[3]
[4]
[5]
[6]
Summary of Contents for iR C3380 series
Page 1: ...Aug 29 2006 Service Manual iR C3380 2880 Series...
Page 2: ......
Page 6: ......
Page 23: ...Chapter 1 Introduction...
Page 24: ......
Page 26: ......
Page 52: ......
Page 53: ...Chapter 2 Installation...
Page 54: ......
Page 127: ...Chapter 3 Basic Operation...
Page 128: ......
Page 130: ......
Page 136: ......
Page 137: ...Chapter 4 Main Controller...
Page 138: ......
Page 160: ......
Page 161: ...Chapter 5 Original Exposure System...
Page 162: ......
Page 188: ...Chapter 5 5 24 F 5 68 4 Remove the original sensor 2 hook 1 F 5 69...
Page 189: ...Chapter 6 Laser Exposure...
Page 190: ......
Page 192: ......
Page 206: ......
Page 207: ...Chapter 7 Image Formation...
Page 208: ......
Page 256: ......
Page 257: ...Chapter 8 Pickup Feeding System...
Page 258: ......
Page 262: ......
Page 303: ...Chapter 9 Fixing System...
Page 304: ......
Page 306: ......
Page 321: ...Chapter 10 Externals and Controls...
Page 322: ......
Page 326: ......
Page 336: ...Chapter 10 10 10 F 10 10 2 Remove the check mark from SNMP Status Enabled...
Page 337: ...Chapter 10 10 11 F 10 11...
Page 359: ...Chapter 11 MEAP...
Page 360: ......
Page 362: ......
Page 401: ...Chapter 12 RDS...
Page 402: ......
Page 404: ......
Page 411: ...Chapter 13 Maintenance and Inspection...
Page 412: ......
Page 414: ......
Page 416: ...Chapter 13 13 2 F 13 1 8 9 1 2 3 3 5 6 7 10 11 12 13 14 4...
Page 421: ...Chapter 14 Standards and Adjustments...
Page 422: ......
Page 424: ......
Page 431: ...Chapter 15 Correcting Faulty Images...
Page 432: ......
Page 434: ......
Page 459: ...Chapter 16 Self Diagnosis...
Page 460: ......
Page 462: ......
Page 481: ...Chapter 17 Service Mode...
Page 482: ......
Page 484: ......
Page 571: ...Chapter 18 Upgrading...
Page 572: ......
Page 574: ......
Page 603: ...Chapter 19 Service Tools...
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Page 606: ......
Page 609: ...Aug 29 2006...
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