Gestetner B070 Service Manual page 377

SC966: Polygon Mirror Motor Ready Error
Definition [B]
The polygon mirror motor does not reach ready status within 15 s after the copy
paper is detected by the registration sensor. (15 s after the write request was
issued for the IPU, the F-GATE signal remained LOW.)
Possible Causes:
• Polygon mirror motor defective
• Poor connection between polygon mirror motor drive board and BCU
• Polygon mirror motor drive board defective
• BCU defective
SC970: Scanner Ready Error
Definition [B]
The scan ready signal is not generated by the MCU for more than 10 s after the
read start signal is sent to the MCU.
Possible Causes
• Serial data transfer between MCU and BCU (through the LCDC)
• Change the MCU firmware
SC990: Software Performance Error 1
Definition [B]
An unexpected operation was encountered by the software.
Possible Causes
• Software crash; reboot the machine
Procedure 1
If the HDDs have just been replaced, be sure to download the stamp data (SP
5853).
Procedure 2
With SP5990 004 (SMC Report – Logging Data), print the most recent information
for SC990. The SC990 information displays the file name, line number, and value.
Report this information to your technical supervisor. For example:
Function.c LINE: 123 VAL:0
SM
CÓPIA NÃO CONTROLADA
4-57
CÓPIA NÃO CONTROLADA
SERVICE CALL CONDITIONS
B070/B071