Ricoh JP5800 Service Manual page 33

1 March, 2000
Index No.
136 Rear Right Tray Paper
Width Sensor
137 Tandem Tray Sensor
138 Left Tray Paper Length
Sensor
139 Front Left Tray Paper
Width Sensor
140 Rear Left Tray Paper
Width Sensor
141 Left Tray Lower Limit
Sensor
142 Delivery Table Paper
Sensor
143 Side Plate Pulse
Generator Sensor
145 Side Plate Set Sensor
146 Side Plate Home
Position Sensor
147 End Plate Pulse
Generator Sensor
149 End Plate Set Sensor
150 End Plate Home
Position Sensor
153 Drum Home Position
Sensor
154 Tray Feed Start Sensor
Others
Index No.
14 Xenon Lamp
20 Interface Connector
34 Print and Master
Counters
76 Master Feed Clutch
79 Thermal Head
93 Thermistor
94 Ink Detecting Pin
108 Tray Exit Clutch
110 Tray Relay Clutch
111 Tray 2 Feed Clutch
152 Drum Home Position
Indicator (LEDs)
Name
Detects paper width in the right side of tray 1.
Informs whether tray 1 is a tandem tray or not.
Detects when there is long paper in tray 1. Also
detects whether there is a paper stack in the left
side of the tandem tray.
Detects paper width in the left side of tray 1.
Detects paper width in the left side of tray 1.
Detects when the bottom plate in the left side of
tray 1 is at its lower limit position.
Detects whether there is paper on the paper
delivery table.
Checks the side plate position.
Informs whether the side plate is up or down.
Detects when the side plate is at the home
position.
Checks the end plate position.
Informs whether the end plate is in the up or
down position.
Detects when the end plate is at the home
position.
Informs when the drum is at home position to
turn on the green LED.
Checks the pressure cylinder position for the
paper feed start timing from the paper tray.
Name
Applies light to the original for exposure.
Connects the machine to the PC controller.
Keeps track of the total number of prints and
masters.
Controls the master feed control roller operation
to feed the master.
Burns the image of the original onto the master.
Detects the temperature inside the drum to
adjust various process.
Detects if ink is present in the drum.
Controls the tray registration rollers.
Controls the 2nd relay rollers.
Controls the paper feed and pick-up rollers in
tray 2.
LEDs that indicates the drum position.
ELECTRICAL COMPONENT LAYOUT
Function
Function
1-27