Ricoh G157 Service Manual page 98

ERROR INDICATION
sensor stays ON after
completion of paper
ejection.)
85 No paper tray
86 Tray 2 open
87 Paper type error
88 Printing paper jam
(even after paper
feed-in, the
registration sensor is
still OFF.)
89 Not used
8A~A0 Not used
A1
Front cover (scanner
unit open)
A2 Document length
exceeding the scan
limitation. During
scanning, a
document 90cm or
longer is detected.
During document
feeding or ejecting, a
document 400cm or
longer is detected.
A3 The trailing edge
sensor does not
come ON during
document feed-in.
A4 Not used
G157
Foreign materials in the
paper path.
Registration sensor actuator
caught on the surrounding
parts.
Registration sensor broken
BCU or controller defective
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Printing paper is not loaded
correctly.
Registration sensor broken
Separation pad damaged
Objects, such as bits of
paper or chips, are in the
paper tray.
Paper feed roller defective
Drive motor broken
BCU or controller defective
Hook of the open switch on
the front cover broken
Front cover open switch
broken
Document jam
Trailing edge sensor actuator
caught on the surrounding
parts
Trailing edge sensor broken
Document jam
Trailing edge sensor actuator
caught on the surrounding
parts
Trailing edge sensor broken
–––
4-8
Remove foreign
materials.
Correct the surrounding
parts on which the
actuator is caught.
Replace the sensor
and/or sensor PCB.
Replace the BCU board
or the controller.
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–––
Instruct the user to load
the paper in correct
place.
Replace the registration
sensor.
Replace the paper tray.
Remove the objects from
the paper tray.
Replace the paper feed
roller.
Replace the main motor.
Replace the BCU board
or the controller.
Replace the front cover.
Replace the front cover
open switch.
Remove the jammed
document.
Correct the surrounding
parts on which the
actuator is caught.
Replace the trailing edge
sensor.
Remove the jammed
document
Correct the surrouding
parts on which the
actuator is caught.
Replace trailing edge
sensor.
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SM