2 - C - 7
READ SECTION
ICB IFB
ICB
CCD
ADB
[5] Original Read Control
Original read control is performed by the ADB (A/D
converter board) and CCD sensor installed in the ADB.
1.
Operation
The light reflected by the exposed original is in-
put to the CCD sensor through the lens. The
analog voltage corresponding to the quantity of
input light is A/D-converted in the ADB, being
output to the ICB (image control board).
a.
Original read
The original read timing is as follows:
(1) Platen mode
Specified interval after exposure unit turns PS6
(original HP) ON.
(2) DF mode
After lapse of the specified time after the original's
leading edge turns ON PS308 (Original
conveyance).
3
5VDC
PS62
SGND
PS63
PS64
PS65
PS66
PS67
PS68
PRCB
ICB IFB
PS62
PS63
PS64
PS65
PS66
PS67
PS68
DCPS1
5VDC
SGND
[6] APS Control
The APS method used in the platen mode is different
from that used in the DF mode.
The signal read by the APS sensor or the original size
detection sensor of the RADF is processed by the ICB
(image control board).
1.
Operation
a.
APS detection
(1) DF mode
The original size is detected according to the
combination of ON/OFF states of PS302 (original
size detection 1) and PS303 (original size
detection 2) and the resistance value of VR301
(original size detection).
METHOD
REPLACEMENT
MODEL
7075/7085
MANUAL
SERVICE HANDBOOK
REVISED EDITION
3
DATE
Jan. 2002
PAGE
2-C-5
Summary of Contents for 7075/FORCE 75
Page 1: ...FEBRUARY 2003 CSM 7075 F75 7085 F85 SERVICE MANUAL MODELS 7075 FORCE 75 7085 FORCE 85...
Page 2: ......
Page 3: ...7075 FORCE 75 7085 FORCE 85 SERVICE MANUAL FEBRUARY 2003...
Page 39: ...OUTLINE 1...
Page 40: ...Blank page...
Page 55: ...1 15 MAIN BODY 11 Paper Exit Drive Section FRONT Paper exit roller Paper exit motor M10...
Page 58: ...1 18 MAIN BODY 14 Web Drive Section FRONT Web drive motor M16 Cleaning web...
Page 59: ...UNIT EXPLANATION 2...
Page 60: ...Blank page...
Page 62: ...2 A 2 EXTERNAL SECTION Blank page...
Page 120: ...2 K 6 TRAY 3 PAPER FEED UNIT Blank page...
Page 126: ...2 L 6 BY PASS TRAY Blank page...
Page 130: ...2 M 4 VERTICAL PAPER CONVEYANCE SECTION Blank page...
Page 154: ...2 O 8 FIXING UNIT Blank page...
Page 165: ...DISASSEMBLY ASSEMBLY 3...
Page 216: ...3 H 4 TONER SUPPLY UNIT Blank page...
Page 224: ...3 I 8 CLEANING TONER RECYCLE UNIT Blank page...
Page 232: ...3 J 8 PAPER FEED UNITS OF TRAYS 1 AND 2 Blank page...
Page 240: ...3 K 8 TRAY 3 PAPER FEED UNIT Blank page...
Page 292: ...3 O 18 FIXING UNIT Blank page 3 O 16...
Page 293: ...MODELS 7075 FORCE 75 7085 FORCE 85 SERVICE SECTION FEBRUARY 2003...
Page 294: ......
Page 315: ...ADJUSTMENT 1...
Page 316: ......
Page 343: ...1 19 25 ADJUSTMENT Blank page 1 19 2...
Page 372: ...1 44 25 ADJUSTMENT 1 ADJUSTMENT Blank page...
Page 458: ...1 114 OTHER ADJUSTMENT Blank page 1 112 2...
Page 497: ...ISW 2...
Page 498: ......
Page 511: ...SERVICE 3...
Page 512: ......
Page 514: ...Blank page...
Page 550: ...3 18 SERVICE Blank page...
Page 551: ...ELECTRICAL PARTS LIST WIRING DIAGRAMS 4...
Page 552: ......
Page 611: ...JAM ERROR CODE LIST 5...
Page 612: ......
Page 625: ...5 13 JAM CODE LIST Blank page 5 11 2...
Page 659: ...TIMING CHARTS 6...
Page 660: ......
Page 678: ...6 18 TIMING CHARTS Blank page...
Page 679: ...INSTALLATION INSTRUCTIONS 7...
Page 680: ......
Page 692: ...Blank page...
Page 704: ...Blank page...
Page 724: ...Blank page...
Page 730: ...Blank page...
Page 736: ...Blank page...
Page 758: ...Blank page...
Page 780: ...Blank page...
Page 832: ...Blank page...
Page 833: ...APPENDIX 7085 OVERALL WIRING DIAGRAM...
Page 834: ......