Service Call Conditions - Ricoh FT4430 Service Manual

16 April '88

Service Call Conditions

Self Diagnostic Code 11:
Exposure Lamp Malfunction
Code 11 is displayed if the lamp monitor voltage is detected during standby
(lamp ON), or if the lamp filament opens.
Self Diagnostic Code 21:
Home Position
canner
Code 21 is displayed if the scanner home position sensor stays deactivated
for more than 2 seconds. This code is effective only when the scanner home
position is initialized.
Self Diagnostic Code 23:
N Registration Start Signal
O
Code 23 is displayed if the optics board does not send the registration start
signal to the main board. The main board waits 4 seconds for this signaL
Self Diagnostic Code 24:
No Scanner Home Position Signal
Code 24 is displayed if the optics board does not send the scanner home
position signal to the main board. The main board waits 20 seconds for this
signal.
Self Diagnostic Codes 28 and 29:
Lens Home Position Check
Code 28 is displayed if the lens home position sensor stays deactivated more
than 3 seconds. Code 29 is displayed if the scanner home position sensor
stays activated more than 3 seconds.
Self Diagnostic Codes 2A and 2B:
cond S canner Home Position
At certain times (power ON, clear, timer) the second scanner either moves to
its home position or moves out and back. Code 2A is displayed if the second
scanner home position sensor stays deactivated longer than 2.5 seconds.
Code 26 is displayed if the second scanner home position sensor stays
activated longer than 2.5 seconds.
Self Diagnostic Codes 2C and 2D:
Scanner Motor Encod er Frequencv
Code 2C is displayed if the frequency of the signal from the scanner motor
encoder is too high. Code 2D is displayed if the frequency of the scanner
motor's signal is too low.
Check
2-22