Chapter 8
8-16
* size: S=LTR (216mm) or shorter, L=longer than 216mm
8.3.4 Reversing Accelerating Control of Large Size Paper
0014-5567
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
This machine executes fixing arch control (details will be explained later at fixing control). In the case of executing reversing of the large size paper, after the paper
leading edge turns on the reversing sensor [2], the paper trailing edge is pulled by fixing, resulting in failure to correctly measure time until the paper stops at the
reversing point.
So, the following controls are performed for reversing the large size paper.
When the paper leading edge turns on the reversing sensor [2], and if the trailing edge point, which is calculated from the paper size, does not pass over the secondary
transfer roller [5] [6] (in the case of executing arch control of fixing), drop the speed of the delivery-2/-3 motors to 135mm/s. Because 135mm/s is the lower speed
for fixing arch control, the paper will not be pulled from the point of the fixing to the reversing. When the trailing edge passes over the secondary transfer roller [5]
[6], the fixing arch control is completed. And then, the fixing speed is returned to 143mm/s, so as the speed of the delivery-2/-3 motors.
Afterwards, the paper feeding speed accelerates to 460mm/s when the trailing edge is at the point of +10mm from the fixing rear roller [4], and starts to decelerate
at the point of 43.8mm from the reversing roller [1] (30mm from the reversing roller = reversing point [3], the distance from when the delivery-3 motor starts at
460mm/s until it completely stops = 13.8mm) to let it stop at the reversing point.
The followings show the timing for reversing accelerating control according to the paper size (after turning on the reversing sensor until the delivery-3 motor is
stopped).
F-8-12
[1] reversing roller
[2] reversing sensor
[3] reversing point
[4] fixing rear roller
[5] Secondary transfer outside roller
[6] Secondary transfer inside roller
8.4 Detecting Jams
8.4.1 Delay Jams
8.4.1.1 Delay Jam for Those Other Than the Pickup Unit
0014-0307
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
Duplexing Plain
paper
S
460
Detect the paper leading
edge with the reversing
sensor
N/A
-
-
L
460
Detect the paper trailing
edge at 10mm downstream
of inside delivery roller
(detected with inside
delivery sensor)
N/A
-
-
Delivery-3 motor
Buffer motor
Outlet
Paper type
Size*
Speed
(mm/s)
Acceleration point
Deceleration point
Acceleration point
Deceleration point
[4]
[1]
[6]
[2]
[3]
[5]
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: ......