2 - K - 3
TRAY 3 PAPER FEED UNIT
PRCB
DCDB
DCPS1
DCPS2
MC7
MC8
SD10
PS51
PS52
M4 CLK
M4 F/R
M4 CONT
M4 EM
5VDC
SGND
5VDC
PS51
SGND
PS52
MC3 CONT
MC4 CONT
SD8 CONT
24VDC
MC7 CONT
24VDC
PGND
24VDC
PGND
MC8 CONT
SD10 CONT
M4
MC7
MC8
MC10
24VDC
MC7 CONT
MC8 CONT
MC10 CONT
[3] First Paper Feed Control
METHOD
REPLACEMENT
MODEL
7075/7085
MANUAL
SERVICE HANDBOOK
REVISED EDITION
3
DATE
Jan. 2002
PAGE
2-K-3
3
The 1st paper feed from tray 3 takes place as the result
of the transmission of the drive force from M4 (paper
feed) to each paper feed roller, via MC7 (feed MC3)
and MC8 (pre-registration MC3). SD10 (pick up SD3)
causes the roller to pick up paper. The above
operations are controlled by the PRCB (printer control
board). Related signals are PS51 (paper feed 3) and
PS52 (paper pre-registration 3).
1.
Operation
a.
First paper feed timing (feed MC drive)
(1) When printing of the first copy starts
Timing that is determined by the P counter from
when copying starts
(2) When printing of the second copy starts
When PS51 turns OFF after the first paper feed
detection
(3) OFF timing
After a specified count from turning ON of PS50
*Changeable in 36 mode
b.
Feed timing (pre-registration MC drive)
(1) ON timing
For 7075
When a drive signal is received from PRCB
For 7085
First sheet: When a preset time interval has
passed after turning ON of MC7.
Second sheet: When a preset time interval has
passed after turning ON of MC1 (registration).
(2) OFF timing
When PS19 is turned OFF.
2.
Signals
a.
PRCB input signals
(1) PS51 (PS51 to PRCB)
Paper passage detection signal.
[L]: Paper passed.
[H]: Paper not passed.
(2) PS52 (PS52 to PRCB)
First paper feed paper detection signal.
[L]: Paper exists.
[H]: Paper does not exist.
b.
PRCB output signals
(1) MC7 CONT (PRCB to DCDB to MC7: 7075)
(PRCB to MC7: 7085)
MC7 drive control signal.
[L]: MC7 ON
[H]: MC7 OFF
(2) MC8 CONT (PRCB to DCDB to MC8: 7075)
(PRCB to MC8: 7085)
MC8 drive control signal.
[L]: MC8 ON
[H]: MC8 OFF
(3) SD10 CONT (PRCB to DCDB to SD10: 7075)
(PRCB to MC10: 7085)
SD10 drive control signal.
[L]: SD10 ON
[H]: SD10 OFF
For 7085
For 7075
3
For 7085
Содержание 7075/FORCE 75
Страница 1: ...FEBRUARY 2003 CSM 7075 F75 7085 F85 SERVICE MANUAL MODELS 7075 FORCE 75 7085 FORCE 85...
Страница 2: ......
Страница 3: ...7075 FORCE 75 7085 FORCE 85 SERVICE MANUAL FEBRUARY 2003...
Страница 39: ...OUTLINE 1...
Страница 40: ...Blank page...
Страница 55: ...1 15 MAIN BODY 11 Paper Exit Drive Section FRONT Paper exit roller Paper exit motor M10...
Страница 56: ...1 16 MAIN BODY 12 Toner Supply Drive Toner supply motor 1 M11 FRONT Toner supply motor 2 M15 Toner cartridge...
Страница 58: ...1 18 MAIN BODY 14 Web Drive Section FRONT Web drive motor M16 Cleaning web...
Страница 59: ...UNIT EXPLANATION 2...
Страница 60: ...Blank page...
Страница 62: ...2 A 2 EXTERNAL SECTION Blank page...
Страница 120: ...2 K 6 TRAY 3 PAPER FEED UNIT Blank page...
Страница 126: ...2 L 6 BY PASS TRAY Blank page...
Страница 130: ...2 M 4 VERTICAL PAPER CONVEYANCE SECTION Blank page...
Страница 154: ...2 O 8 FIXING UNIT Blank page...
Страница 165: ...DISASSEMBLY ASSEMBLY 3...
Страница 216: ...3 H 4 TONER SUPPLY UNIT Blank page...
Страница 224: ...3 I 8 CLEANING TONER RECYCLE UNIT Blank page...
Страница 232: ...3 J 8 PAPER FEED UNITS OF TRAYS 1 AND 2 Blank page...
Страница 240: ...3 K 8 TRAY 3 PAPER FEED UNIT Blank page...
Страница 292: ...3 O 18 FIXING UNIT Blank page 3 O 16...
Страница 293: ...MODELS 7075 FORCE 75 7085 FORCE 85 SERVICE SECTION FEBRUARY 2003...
Страница 294: ......
Страница 315: ...ADJUSTMENT 1...
Страница 316: ......
Страница 343: ...1 19 25 ADJUSTMENT Blank page 1 19 2...
Страница 372: ...1 44 25 ADJUSTMENT 1 ADJUSTMENT Blank page...
Страница 458: ...1 114 OTHER ADJUSTMENT Blank page 1 112 2...
Страница 497: ...ISW 2...
Страница 498: ......
Страница 511: ...SERVICE 3...
Страница 512: ......
Страница 514: ...Blank page...
Страница 550: ...3 18 SERVICE Blank page...
Страница 551: ...ELECTRICAL PARTS LIST WIRING DIAGRAMS 4...
Страница 552: ......
Страница 610: ...4 40 Blank page METHOD ADDITION MODEL 7075 7085 MANUAL SERVICE HANDBOOK REVISED EDITION 3 DATE Jan 2002 PAGE 4 34 6...
Страница 611: ...JAM ERROR CODE LIST 5...
Страница 612: ......
Страница 625: ...5 13 JAM CODE LIST Blank page 5 11 2...
Страница 659: ...TIMING CHARTS 6...
Страница 660: ......
Страница 678: ...6 18 TIMING CHARTS Blank page...
Страница 679: ...INSTALLATION INSTRUCTIONS 7...
Страница 680: ......
Страница 692: ...Blank page...
Страница 704: ...Blank page...
Страница 724: ...Blank page...
Страница 730: ...Blank page...
Страница 736: ...Blank page...
Страница 758: ...Blank page...
Страница 780: ...Blank page...
Страница 832: ...Blank page...
Страница 833: ...APPENDIX 7085 OVERALL WIRING DIAGRAM...
Страница 834: ......