Ricoh B079 - Page 202

SERVICE CALL CONDITIONS
B079/B082 4-4 SM
Code No. Symptom Possible Cause
Polygonal Mirror Motor Error 2: OFF
Timeout
336 C
The XSCRDY signal is not issued
(HIGH: Inactive) within 2 s after the
polygonal mirror motor switches off.
I/F harness of the polygonal mirror
motor disconnected or defective.
Polygonal mirror motor or polygonal
mirror motor driver defective.
Polygonal mirror motor drive pulse is
not output incorrectly.
GABIC cannot monitor XSCRDY signal.
Polygonal Mirror Motor Error 3:
XSCRDY Signal Error
337 C
The XSCRDY is not issued (HIGH:
Inactive) after the polygonal mirror
motor has been rotating normally for
600 ms.
I/F harness of the polygonal mirror
motor disconnected or defective.
Polygonal mirror motor or polygonal
mirror motor driver defective.
Polygonal mirror motor drive pulse is
not output incorrectly.
GABIC cannot monitor XSCRDY signal.
Polygonal Mirror Motor Error 4:
Unstable Timeout
338 C
The XSCRDY signal is detected LOW
(Active) after the polygonal mirror motor
switches on, but the signal is not
detected LOW after 1 s has elapsed,
and not detected after another 500 ms
has elapsed.
I/F harness of the polygonal mirror
motor disconnected or defective.
Polygonal mirror motor or polygonal
mirror motor driver defective.
Polygonal mirror motor drive pulse is
not output incorrectly.
GABIC cannot monitor XSCRDY signal.
ID sensor pattern test error 350 C
One of the following ID sensor
output voltages was detected twice
consecutively when checking the ID
sensor pattern.
1) Vsp ≥ 2.5V
2) Vsg ≤ 2.5V
3) Vsp = 0V
4) Vsg = 0V
ID sensor defective
ID sensor connector defective
Poor ID sensor connector connection
I/O board (IOB) defective
High voltage supply board defective
ID sensor dirty
Defect at ID sensor pattern writing area
of the drum
ID sensor Vsg test error 351 C
When the ID sensor was checked, the
ID sensor output voltage was 5.0V
while the PWM signal input to the ID
sensor was 0.
ID sensor defective
ID sensor connector defective
Poor ID sensor connection
I/O board (IOB) defective
Scanning system defective
High voltage supply board defective
ID sensor dirty
Defect at the ID sensor pattern writing
area of the drum
ID sensor, pattern edge detect error 352 C
The ID sensor pattern edge voltage is
detected to be not 2.5V twice
consecutively during an 800 ms
interval.
ID sensor defective
ID sensor connector defective
Poor ID sensor connector connection
I/O board (IOB) defective
High voltage supply board defective
Dirty ID sensor
Defect at the ID sensor pattern writing
area of the drum
CÓPIA NÃO CONTROLADA
CÓPIA NÃO CONTROLADA