Chapter 8
8-33
F-8-28
The feeding speeds at the sensor ON / OFF are shown as below.
T-8-11
d. Finishing monitoring the arch
Finish monitoring the arch at the point where the tailing edge of paper passes through the secondary transfer roller.
8.9 Duplex Feeding Unit
8.9.1 Overview
0014-0327
Color iR C3380G / Color iR C2880G / Color iR C3380i / Color iR C3380 / Color iR C2880i / Color iR C2880 / iR C3480 / iR C3480i / iR C3080 / iR C3080i / iR
C2550
At both-sided print in this machine, a paper is reversed at the reversal slot of the delivery assembly outside the machine, returned and re-picked up through the
duplexing feed assembly to the registration roller assembly.
In reversing, keep the trailing edge of paper at 30mm upstream from the reversing roller [1], and stop temporarily with the remained portion delivered outside the
machine from the reversal slot. After that, rotate the reversing roller reversely and return the paper, feed it through the duplexing inlet roller [4] to the duplexing
feed assembly. The delivery motor 3 activates the reversing roller and the duplexing inlet roller.
The duplexing feed assembly has two sets of duplexing feed roller [5] [7]. These rollers feed papers to the registration roller assembly. Duplexing motor activates
the duplexing feed roller.
Constant speed
Half speed
1 / 4 speed
Process speed
143.0 mm/s
71.5 mm/s
35.8 mm/s
Arch sensor ON
(Increasing the fixing feeding speed)
146.8 mm/s
73.4 mm/s
36.7 mm/s
Arch sensor OFF
(Decreasing the fixing feeding speed)
135.0 mm/s
67.5 mm/s
33.8 mm/s
During arch control
At the point where the leading edge of
paper reaches the fixing nip
At the point where the
trailing edge of paper
has passed the secondary
transfer roller
Only detection of small arch by PS2
For heavy paper / OHT
For plain paper
Switch PS16 / PS2 due to the
distance of paper delivered from fixing
- LTR or less:
Trail edge of paper 20%
- More than LTR:
Trail edge of paper 50%
Decreasing the fixing
feeding speed
Same as process speed
Increasing the fixing
feeding speed
PS16 detects large arch
(Approx. 510 msec for A4)
PS2 detects small arch
(Approx. 108 msec for A4)
Summary of Contents for CiRC2550
Page 2: ......
Page 27: ...Chapter 1 Introduction ...
Page 28: ......
Page 47: ...Chapter 1 1 18 F 1 14 ON OFF ON OFF ...
Page 70: ...Chapter 1 1 41 5 Turn on the main power switch ...
Page 79: ...Chapter 2 Installation ...
Page 80: ......
Page 85: ...Chapter 2 2 3 Not available in some regions ...
Page 134: ...Chapter 3 Basic Operation ...
Page 135: ......
Page 137: ......
Page 143: ...Chapter 4 Main Controller ...
Page 144: ......
Page 152: ...Chapter 4 4 6 F 4 6 CPU HDD ROM access to the program at time of execution ...
Page 171: ...Chapter 5 Original Exposure System ...
Page 172: ......
Page 203: ...Chapter 6 Laser Exposure ...
Page 204: ......
Page 206: ......
Page 220: ...Chapter 7 Image Formation ...
Page 221: ......
Page 277: ...Chapter 8 Pickup Feeding System ...
Page 278: ......
Page 282: ......
Page 336: ...Chapter 9 Fixing System ...
Page 337: ......
Page 339: ......
Page 357: ...Chapter 10 Externals and Controls ...
Page 358: ......
Page 362: ......
Page 366: ...Chapter 10 10 4 F 10 2 F 10 3 FM1 FM2 FM5 FM8 FM11 FM4 FM3 FM6 FM7 FM9 FM10 ...
Page 375: ...Chapter 10 10 13 F 10 10 2 Remove the check mark from SNMP Status Enabled ...
Page 376: ...Chapter 10 10 14 F 10 11 ...
Page 402: ...Chapter 11 MEAP ...
Page 403: ......
Page 405: ......
Page 452: ...Chapter 12 RDS ...
Page 453: ......
Page 455: ......
Page 464: ...Chapter 13 Maintenance and Inspection ...
Page 465: ......
Page 467: ......
Page 469: ...Chapter 13 13 2 F 13 1 8 9 1 2 3 3 5 6 7 10 11 12 13 14 4 ...
Page 474: ...Chapter 14 Standards and Adjustments ...
Page 475: ......
Page 477: ......
Page 485: ......
Page 486: ...Chapter 15 Correcting Faulty Images ...
Page 487: ......
Page 495: ...Chapter 15 15 4 F 15 2 COLOR M 1 COLOR Y C K 0 ...
Page 569: ...Chapter 15 15 78 F 15 82 J102 J107 J103 J108 J101 J109 J106 J112 J115 J113 J114 J104 J105 ...
Page 570: ...Chapter 16 Self Diagnosis ...
Page 571: ......
Page 573: ......
Page 600: ...Chapter 17 Service Mode ...
Page 601: ......
Page 603: ......
Page 712: ...Chapter 18 Upgrading ...
Page 713: ......
Page 715: ......
Page 746: ...Chapter 19 Service Tools ...
Page 747: ......
Page 749: ......
Page 752: ...APPENDIX ...
Page 774: ......