Ricoh MT-C1 User Manual

15 February 2006 B140/B246 SERIES SERVICE MODE
4-43
Trouble-
shooting
SC200: Exposure
Polygon mirror motor error 1: Timeout at ON
B246
202
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.
• The polygon mirror motor PCB connector
is loose, broken, or defective
• Polygon mirror motor PCB defective
• Polygon mirror motor defective
• IPU defective
Polygon mirror motor error 2: Timeout at OFF
B246
203
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.)
• The polygon mirror motor PCB connector
is loose, broken, or defective
• Polygon mirror motor PCB defective
• Polygon mirror motor defective
• IPU defective
Polygon mirror motor error 3: XSCRDY signal error
B246
204
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.
• Electrical oise interference on the line
with the motor signals
• Polygon mirror motor PCB connector
loose, broken, defective
• Polygon mirror motor PCB defective
• Polygon mirror motor defective
Polygon mirror motor error 4: Unstable timeout
B246
205
The "Ready" signal (XSCRDY) was
detected as unstable for more than
20 sec. while the polygon mirror
motor was operating at normal
speed.
• Electrical noise on the line with the motor
signals
• Polygon mirror motor PCB connector
loose, broken, defective
• Polygon mirror motor PCB defective
• IPU defective
Laser synchronization detection error
B246
220
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.
• Laser synchronization board
connector loose, broken, defective
• Laser synchronization detection
board is not installed correctly (out
of alignment)
• Laser synchronization board
defective
• IPU defective

Ricoh MT-C1 Specifications

General

Brand	Ricoh
Model	MT-C1
Category	All in One Printer
Language	English