Sc200: Exposure - Ricoh B064 SERIES Service Manual

B140/B246/D052 SERIES SERVICE MODE

SC200: Exposure

202 Polygon mirror motor error 1: Timeout at ON
The polygon mirror motor unit did
not enter "Ready" status within 20
sec. after the motor was turned on,
or within 20 sec. after the speed of
rotation was changed.
203 Polygon mirror motor error 2: Timeout at OFF
The polygon mirror motor did not
leave "Ready" within 3 sec. after
the motor was switched off. (The
XSCRDY signal did not go HIGH
(inactive) within 3 sec.)
204 Polygon mirror motor error 3: XSCRDY signal error
The polygon mirror motor "Ready"
signal went inactive (HIGH) while
the motor was operating at normal
speed, even though the motor was
neither switched off nor was there a
request for a change in speed.
205 Polygon mirror motor error 4: Unstable timeout
The "Ready" signal (XSCRDY) was
detected as unstable for more than
20 sec. while the polygon mirror
motor was operating at normal
speed.
220 Laser synchronization detection error
The 1st laser synchronization detection
unit could not detect the line
synchronization signal (DETP0) within
500 ms while the polygon mirror motor
was operating at normal speed.
NOTE: The unit polls for the signal
every 50 ms. This SC is issued after the
10th attempt fails to detect the signal.
B064 Series/B140 Series
/B246 Series/D052 Series
CÓPIA NÃO CONTROLADA
• The polygon mirror motor PCB connector
• Polygon mirror motor PCB defective
• Polygon mirror motor defective
• IPU defective
• The polygon mirror motor PCB connector
• Polygon mirror motor PCB defective
• Polygon mirror motor defective
• IPU defective
• Electrical oise interference on the line
• Polygon mirror motor PCB connector
• Polygon mirror motor PCB defective
• Polygon mirror motor defective
• Electrical noise on the line with the motor
• Polygon mirror motor PCB connector
• Polygon mirror motor PCB defective
• IPU defective
4-44
CÓPIA NÃO CONTROLADA
B246/D052
is loose, broken, or defective
B246/D052
is loose, broken, or defective
B246/D052
with the motor signals
loose, broken, defective
B246/D052
signals
loose, broken, defective
B246/D052
• Laser synchronization board
connector loose, broken, defective
• Laser synchronization detection
board is not installed correctly (out
of alignment)
• Laser synchronization board
defective
• IPU defective
SM