(1) Detect supply mode
In the detect supply mode toner will be supplied under the following
conditions:
Black toner ...........................Vsp/ Vsg x 100
≥
10
Color toner ...........................Vsp/ Vsg x 100
≥
25
(2) Fixed supply mode
A fixed amount of toner is supplied every copy cycle when the fixed
supply mode is selected (when the data of SP mode #30 is "1").
On this copier, this mode can be selected only for black toner.
The CPU monitors Vsp and Vsg once every 10 copy cycles even in the
fixed supply mode.
To avoid over toning, the CPU stops toner supply when Vsp becomes
1/10 Vsg or less.
Vsg
Vsp
100% (4.0 V)
10% (0.4 V)
Vsg
Vsp
100% (4.0 V)
25% (1.0 V)
Low Density
High Density
High Density
Low Density
[Black Toner]
[Color Toner]
Det
a
il
ed
Descriptions
12 February 1992
PROCESS CONTROL
2-5
Содержание A085
Страница 1: ...RICOH FT4227 FT4427 FT4727 A085 A087 A088 PARTS CATALOG First Edition August 1992 RICOH COMPANY LTD ...
Страница 3: ...FT4227 FT4427 FT4727 A085 A087 A088 ...
Страница 6: ...3 LOCATION OF UNIT ...
Страница 7: ...4 LOCATION OF UNIT ...
Страница 8: ...5 LOCATION OF UNIT ...
Страница 9: ...6 LOCATION OF UNIT ...
Страница 10: ...7 LOCATION OF UNIT ...
Страница 11: ...8 LOCATION OF UNIT ...
Страница 12: ...9 LOCATION OF UNIT ...
Страница 13: ...10 1 EXTERIOR 1 A085 A087 A088 ...
Страница 15: ...12 2 EXTERIOR 2 A085 A087 A088 ...
Страница 17: ...14 3 OPERATION PANEL A085 A087 A088 ...
Страница 19: ...16 4 PLATEN COVER A085 A087 A088 ...
Страница 21: ...18 5 OPTICS SECTION 1 A085 A087 A088 ...
Страница 23: ...20 6 OPTICS SECTION 2 A085 A087 A088 ...
Страница 25: ...22 7 OPTICS SECTION 3 A085 A087 A088 ...
Страница 27: ...24 8 OPTICS SECTION 4 A085 A087 A088 ...
Страница 29: ...26 9 OPTICS SECTION 5 A085 A087 A088 ...
Страница 31: ...28 10 BY PASS FEED TABLE A085 A087 A088 ...
Страница 33: ...30 11 PAPER FEED TRAY A085 A087 A088 ...
Страница 35: ...32 12 PAPER FEED SECTION A085 A087 A088 ...
Страница 37: ...34 13 TRAY LIFT SECTION A085 A087 A088 ...
Страница 39: ...36 14 LCT SECTION 1 A087 A088 ...
Страница 41: ...38 15 LCT SECTION 2 A087 A088 ...
Страница 43: ...40 16 LCT SECTION 3 A087 A088 ...
Страница 45: ...42 17 VERTICAL TRANSPORT SECTION A085 A087 A088 ...
Страница 47: ...44 18 PAPER REGISTRATION A085 A087 A088 ...
Страница 49: ...46 19 DRUM SECTION 1 A085 A087 A088 ...
Страница 51: ...48 20 DRUM SECTION 2 A085 A087 A088 ...
Страница 53: ...50 21 DEVELOPMENT UNIT 1 A085 A087 A088 ...
Страница 55: ...52 22 DEVELOPMENT UNIT 2 A085 A087 A088 ...
Страница 57: ...54 23 CLEANING UNIT A085 A087 A088 ...
Страница 59: ...56 24 T S CORONA UNIT A085 A087 A088 ...
Страница 61: ...58 25 TRANSPORT SECTION A085 A087 A088 ...
Страница 63: ...60 26 FUSING UNIT 1 A085 A087 A088 ...
Страница 65: ...62 27 FUSING UNIT 2 A085 A087 A088 ...
Страница 67: ...64 28 PAPER EXIT SECTION 1 A085 A087 A088 ...
Страница 69: ...66 29 PAPER EXIT SECTION 2 A085 A087 A088 ...
Страница 71: ...68 30 FRAME SECTION 1 A085 A087 A088 ...
Страница 73: ...70 31 FRAME SECTION 2 A085 A087 A088 ...
Страница 75: ...72 32 FRAME SECTION 3 A085 A087 A088 ...
Страница 77: ...74 33 FRAME SECTION 4 A085 A087 A088 ...
Страница 79: ...76 34 DRIVE SECTION 1 A085 A087 A088 ...
Страница 81: ...78 35 DRIVE SECTION 2 A085 A087 A088 ...
Страница 83: ...80 36 ELECTRICAL SECTION 1 A085 A087 A088 ...
Страница 85: ...82 37 ELECTRICAL SECTION 2 A085 A087 A088 ...
Страница 87: ...84 38 ELECTRICAL SECTION 3 A085 A087 A088 ...
Страница 89: ...86 39 ELECTRICAL SECTION 4 A085 A087 A088 ...
Страница 91: ...88 40 DUPLEX UNIT 1 A088 ...
Страница 93: ...90 41 DUPLEX UNIT 2 A088 ...
Страница 95: ...92 42 DUPLEX UNIT 3 A088 ...
Страница 97: ...94 43 MAIN CONTROL BOARD A085 A087 A088 ...
Страница 98: ...95 43 MAIN CONTROL BOARD A085 A087 A088 ...
Страница 99: ...96 43 MAIN CONTROL BOARD A085 A087 A088 ...
Страница 102: ...99 44 MEMORY BOARD A085 A087 A088 ...
Страница 104: ...101 45 AC HARNESS A085 A087 A088 ...
Страница 106: ...103 46 DC HARNESS TYPE 2 A085 A087 A088 ...
Страница 108: ...105 47 DC HARNESS TYPE 4 A085 A087 A088 ...
Страница 110: ...107 48 FUSING UNIT HARNESS A085 A087 A088 ...
Страница 112: ...109 49 LCT HARNESS A087 A088 ...
Страница 114: ...111 50 DECAL AND DOCUMENT A085 A087 A088 ...
Страница 115: ...112 50 DECAL AND DOCUMENT A085 A087 A088 ...
Страница 116: ...113 50 DECAL AND DOCUMENT A085 A087 A088 ...
Страница 117: ...114 50 DECAL AND DOCUMENT A085 A087 A088 ...
Страница 118: ...115 50 DECAL AND DOCUMENT A085 A087 A088 ...
Страница 120: ...117 51 SPECIAL TOOL A085 A087 A088 ...
Страница 122: ...PARTS INDEX ...
Страница 154: ...SECTION 1 OVERALL MACHINE INFORMATION ...
Страница 163: ...SECTION 2 DETAILED SECTION DESCRIPTION ...
Страница 165: ...SECTION 3 INSTALLATION ...
Страница 178: ...SECTION 4 SERVICE TABLES ...
Страница 201: ...SECTION 5 REPLACEMENT AND ADJUSTMENT ...
Страница 227: ...FT5233 5433 5733 SERVICE MANUAL ...
Страница 230: ...SECTION 1 OVERALL MACHINE INFORMATION ...
Страница 255: ...SECTION 2 DETAILED SECTION DESCRIPTIONS ...
Страница 373: ...SECTION 3 INSTALLATION ...
Страница 403: ...SECTION 4 SERVICE TABLES ...
Страница 449: ... 6 Duplex Tray PREVENTIVE MAINTENANCE SCHEDULE 12 February 1992 4 46 ...
Страница 456: ...SECTION 5 REPLACEMENT AND ADJUSTMENT ...
Страница 575: ...SECTION 6 TROUBLESHOOTING ...