Chapter 7
7-72
F-7-89
[1] ITB
[2] Reflecting surface
[3] Side driver PCB
PS1: ITB home position sensor A
PS2: ITB home position sensor B
DC-CON: DC controller
MEMO:
A-surface home position (I_TOP1A) is the signal to form images by one surface on the ITB.
B-surface home position (I_TOP1B) is the signal to form images by two surfaces on the ITB.
The DC controller determines the first sensor output (PS1 or PS2) that detects the reflecting surface on the ITB after receiving the print instruction as A-surface
home position.
It then assumes the point reached a specific period of time after side A home position to be side B home position.
The following are the timing of image forming for each print mode.
1. 5 Full-color one-sheet print
PVREQ signal (image demanding signal) for each color is produces based on A-surface ITB home position detection signal (I_TOP1A). The image is formed based
on this PVREQ signal.
F-7-90
2. 5 Full-Color 2-Sheet Continuous Printing (2-image printing) (See after-mentioned note)
PVREQ signal (image demanding signal) for each color is produced based on the A-surface ITB home position detection signal (I_TOP1A) and the B-surface ITB
home position detection signal (I_TOP1B). The image is formed at constant speed based on this PVREQ signal.
The image is formed in order based on I_TOP1A for the first surface, I_TOP1B for the second surface.
PS2
PS1
PS2
[2]
I_TOP_SNS_2
I_TOP_SNS_1
[3]
DC-CON
J3403
J1193
[1]
[2]
[2]
Start key ON
ON
INTR
PVREQ
Laser
(image formation)
A-surf
ace
B-surf
ace
Home position
detection signal
L
Y
M
C
I_TOP1A
I_TOP2A
I_TOP3A
I_TOP4A
Bk
I_TOP5A
(PS1 or PS2 output)
Summary of Contents for imagePRESS C1
Page 1: ...Oct 22 2008 Service Manual imagePRESS C1 Series ...
Page 2: ......
Page 6: ......
Page 38: ...Contents ...
Page 39: ...Chapter 1 Introduction ...
Page 40: ......
Page 42: ......
Page 72: ...Chapter 1 1 30 F 1 18 ...
Page 85: ...Chapter 1 1 43 T 1 26 ...
Page 88: ......
Page 89: ...Chapter 2 Installation ...
Page 90: ......
Page 94: ......
Page 234: ......
Page 235: ...Chapter 3 Basic Operation ...
Page 236: ......
Page 238: ......
Page 244: ......
Page 245: ...Chapter 4 Main Controller ...
Page 246: ......
Page 248: ......
Page 276: ...Chapter 5 Original Exposure System ...
Page 277: ......
Page 332: ...Chapter 6 Laser Exposure ...
Page 333: ......
Page 342: ...Chapter 6 6 8 F 6 10 1 Laser Light 2 Laser Shutter 3 Laser Shutter Lever 1 1 2 2 1 2 3 3 3 3 ...
Page 344: ...Chapter 7 Image Formation ...
Page 345: ......
Page 431: ...Chapter 7 7 82 ...
Page 462: ...Chapter 8 Pickup Feeding System ...
Page 463: ......
Page 504: ...Chapter 8 8 39 7 F 8 52 8 F 8 53 9 F 8 54 1 3 2 1 2 4 3 1 2 4 3 ...
Page 505: ...Chapter 8 8 40 10 F 8 55 11 F 8 56 12 F 8 57 1 4 2 3 5 4 1 3 2 1 4 2 5 3 ...
Page 506: ...Chapter 8 8 41 13 F 8 58 14 F 8 59 15 F 8 60 5 1 2 3 4 1 2 3 5 4 1 2 3 4 5 ...
Page 507: ...Chapter 8 8 42 16 F 8 61 1 2 3 4 5 ...
Page 509: ...Chapter 8 8 44 3 F 8 64 A Duplexing reversal position 4 F 8 65 2 1 A 2 1 ...
Page 510: ...Chapter 8 8 45 5 F 8 66 6 F 8 67 2 1 2 1 ...
Page 511: ...Chapter 8 8 46 7 F 8 68 8 F 8 69 3 2 1 3 2 1 ...
Page 512: ...Chapter 8 8 47 9 F 8 70 10 F 8 71 3 2 1 2 3 1 ...
Page 513: ...Chapter 8 8 48 11 F 8 72 B Duplexing re pickup stop position 12 F 8 73 3 2 B 1 3 1 2 ...
Page 514: ...Chapter 8 8 49 13 F 8 74 14 F 8 75 1 2 3 1 2 3 ...
Page 516: ...Chapter 8 8 51 F 8 77 SL3 M10 PS17 ...
Page 533: ...Chapter 8 8 68 F 8 154 1 2 4 3 2 3 4 ...
Page 534: ...Chapter 9 Fixing System ...
Page 599: ...Chapter 10 Externals and Controls ...
Page 642: ...Chapter 11 MEAP ...
Page 643: ......
Page 645: ......
Page 695: ...Chapter 12 Maintenance and Inspection ...
Page 696: ......
Page 698: ......
Page 700: ...Chapter 12 12 2 F 12 1 28 9 10 14 13 29 29 11 12 27 6 3 1 2 5 4 7 8 15 16 ...
Page 701: ...Chapter 12 12 3 F 12 2 17 20 24 23 25 26 19 18 24 21 22 ...
Page 704: ...Chapter 12 12 6 F 12 3 1 2 3 4 9 6 5 7 8 11 12 13 14 15 10 ...
Page 715: ...Chapter 12 12 17 F 12 18 1 1 2 2 ...
Page 716: ...Chapter 13 Standards and Adjustments ...
Page 717: ......
Page 719: ......
Page 732: ...Chapter 14 Correcting Faulty Images ...
Page 862: ...Chapter 15 Self Diagnosis ...
Page 894: ...Chapter 16 Service Mode ...
Page 895: ......
Page 1222: ...Chapter 17 Upgrading ...
Page 1223: ......
Page 1225: ......
Page 1256: ...Chapter 17 17 31 F 17 65 2 Turn off the main power switch and remove the USB device ...
Page 1257: ...Chapter 18 Service Tools ...
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Page 1264: ...Oct 22 2008 ...
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