Ricoh FT8780, FT880 ELECTRICAL COMPONENT LAYOUT
Name
Motors
1st Tray Drive 132 4E
2nd Tray Drive 139 4G
3rd Tray Drive 65 1C
Charge Wire Cleaner 74 14I
Development 51 13E
Fusing Cooling Fan 58 6F
Fusing Exhaust Fan 56 4D
Lens Horizontal Drive 54 13D
Lens Vertical Drive 57 13D
Main 73 13E
Mirror Unit Drive 78 13D
Optics Cooling 77 6F
Scanner Drive 55 13E
T & S Wire Cleaner 72 4J
Toner Supply 75 10F
Vaccum Fan 52 5F
Power Packs
Charge 103 4I
Development Bias 104 10E
PTC 107 4I
Separation 105 4H
Transfer 102 4I
Power Supply Unit 119 10B
Sensor
Auto Responce 93 14H
Drum Potential 95 14G
Duplex Entrance 12 1I
Exit 10 4E
Fusing Unit 9 4E
Image Density 87 9E
Jogger Home Position 15 1I
Lens Horizontal
Encoder
Lens Horizontal Home
Position
Lens Vertical Encoder 7 12C
Lens Vertical Home
Position
Lower Limit - 1st Tray 138 4F
Lower Limit - 2nd Tray 140 4G
Index.
No.
5 12C
4 12C
6 12C
P to P
Location
Name
Lower Limit - 3rd Tray 41 2C
Mirror Unit Encoder 29 12C
Mirror Unit Home
Position
Paper End - 1st Tray 159 4F
Paper End - 2nd Tray 146 4F
Paper End - 3rd Tray 42 2C
Paper End - Duplex 13 2I
Paper Feed - 1st Tray 154 4F
Paper Feed - 2nd Tray 147 4G
Paper Feed - 3rd Tray 16 1G
Paper Feed - Duplex 18 1G
Paper Size 1 - 1st Tray 133 4E
Paper Size 1 - 2nd Tray 142 4G
Paper Size 1 - 3rd Tray 35 1C
Paper Size 2 - 1st Tray 157 4E
Paper Size 2 - 2nd Tray 143 4G
Paper Size 2 - 3rd Tray 34 1C
Paper Size 3 - 1st Tray 137 4E
Paper Size 3 - 2nd Tray 144 4G
Paper Size 3 - 3rd Tray 33 1C
Paper Size 4 - 1st Tray 135 4F
Paper Size 4 - 3rd Tray 32 1C
Paper Size 5 - 3rd Tray 39 1C
Paper Size 6 - 3rd Tray 38 1C
Paper Size 7 - 3rd Tray 37 1C
Paper Size 8 - 3rd Tray 36 1C
Paper Volume - 1st Tray 131 4E
Paper Volume - 2nd
Tray
Paper Volume - 3rd
Tray
Pick-up Position -
Duplex
Registration Sensor 22 4J
Return Home Position 27 13C
Scanner Home Position 8 11C
Toner Cartridge 2 1H
Toner Coil Overload 1 1H
Toner Near End 28 10E
Transport 20 4J
Tray Paper Position 141 4G
Upper Limit - 1st Tray 161 4F
Upper Limit - 2nd Tray 158 4G
Upper Limit - 3rd Tray 14 1G
Index.
No.
3 12C
149 4F
31 1C
17 1I
P to P
Location
Name
Clutches
LCT Drive 76 6F
Paper Feed - 1st Tray 134 4F
Paper Feed - 2nd Tray 159 4G
Paper Feed - 3rd Tray 66 1G
Paper Feed - Duplex 67 1I
Vertical Transport Unit
Drive
Registration 79 4J
PCBs
DC Drive 116 9E
Drum Current Detection 106 11E
Main 122 10H
Motor Control 123 12D
DC Motor Drive 101 14C
Operation Unit 124 8E
PTL 121 14H
Quenching Lamp 120 14H
Interface 115 3F
Vaccum Motor 108 5F
Relays
Anticondensation
Heater
Drum Heater 1 114 2B
Drum Heater 2 110 1B
Fusing SSR (16 A) 111 6B
Fusing SSR (20 A) 112 6B
Relay Unit 118 6B
Lamps
Exposure 85 7E
Fusing 1 89 4D
Fusing 2 90 4D
Pre-Transfer 81 14H
Quenching 82 14H
Index
No.
68 1G
113 4B
P to P
Location
Name
Solenoids
2nd Tray Lock 136 4G
Cleaning 53 9E
Fork Gate 1 62 1I
Fork Gate 2 63 1I
Inverter Gate 61 4E
Junction Gate 60 4E
Pick-up - 1st Tray 155 4F
Pick-up - 2nd Tray 148 4G
Pick-up - 3rd Tray 70 1C
Pinch Roller 59 4E
Pressure Plate 69 1I
Positioning 64 1I
Duplex Paper Stopper 71 1I
Switches
1st Tray Down 151 4F
1st Tray Set 160 3F
2nd Tray Down 150 3F
3rd Tray Down 40 1C
Anticondensation 23 3B
Error Reset 11 14I
Left Door 1 25 13F
Left Door 2 24 13F
Main 26 10A
Right Door 1 21 13F
Right Door 2 19 13F
Tray Cover 153 3F
Heaters
1st Tray 156 4F
2nd Tray 145 4F
3rd Tray 92 1C
Anticondensation 83 3B
Drum 96 1B
Exposure Lamp 86 7E
Index.
No.
P to P
Location
Thermistors
Drum 94 14I
Fusing 88 4E
Other Components
Total Counter 117 14G
FL Stabilizer 109 6E
Thermofuse 91 4D
Anticondensation
Thermoswitch
84 3A
ELECTRICAL COMPONENT LAYOUT (DF)
2
1
3
4
5
13
12
11
1. Pick-up Roller H.P. Sensor
2. Feed-in Motor
3. DF Main Board
4. Entrance Cover Sensor
5. Job Separation Motor
6. Indicator Board
7. Job Separator H.P. Sensor
8
10
8. Job Completion Sensor
9. Original Sensor
10. Timing Sensor
11. CFF Sensor
12. Registration Sensor
13. Original Width Sensor
9
6
7
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