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If the 09-360 is intermittent and causes the message Machine unavailable. Perform OF7 IOT
PWB Diagnostics RAP before a new IOT PWB is installed, PL 1.10 Item 2.
Perform the TC reduction adjustment.
TC reduction adjustment
Perform the following:
1.
Enter dC330, code 04-010, main drive motor; code 09-010, photoreceptor motor; 09-066,
developer bias.
2.
Start the routine. The start will have to be pressed every 5 seconds to restart the devel-
oper bias routine.
3.
Monitor the voltage output, Flag 1, at P/J6 pin 8 on the IOT PWB.
NOTE: The toner concentration cannot be adjusted and maintained by making high area
coverage prints.
4.
Run the routine until the monitored voltage is greater than 0.9 volts.
5.
Check the image quality.
TC increase adjustment
Perform the following:
1.
Enter dC330, code 04-010, main drive motor; 09-040, toner dispense motor; 09-045,
toner cartridge motor.
2.
Start the routine. The start will have to be pressed every 5 seconds to restart the toner
dispense motor and the toner cartridge routines.
3.
Monitor the voltage output, Flag 1, at P/J6 pin 8 on the IOT PWB.
4.
Run the routine until the monitored voltage is between 2.2 and 2.8 volts
5.
Check the image quality.
WorkCentre 5687 Family
Toner dispense
motor
MOT 09-040
Figure 1 Component location
August 2007
2-243
P/J93
TC sensor Q09-360
Toner dispense drive
gears
Status Indicator RAPs
09-360, 09-361, 09-362, 09-363
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