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981 service switch error refers to BUD(belt up/down) clutch if the
error essage is hard. it could be possible that someone could have
playes with white CAM below the tranfer belt(behind the waste toner
box) if you suspect that the cam was manually rotated, then you are in
a big FIX. if not then it could be just a problem with the cam being
worn out. in this scenario you cannot remove or reset the transfer belt
as you normally do it. there is a special procedure to remove the
transfer belt. try the following.
remove the waste toner box.,
fool the front door of the printer so that you can watch the transfer
belt moving up/down. while you have the fron door open, Turn off the
printer, press and hold the go and return buttons on the printer , keep
watching the shaft that show the position of the belt, once it moves,
be fast enough to turn off the printer. If you were successful in this
procedure , you can remove the belt from the printer without any
problem. Make sure not to touch the white cam shaft. visually examine
the internal mechanism of the shaft, if it is wornout replace it.
the white cam was turned manually then you might have to replace the
BUD clutch.. which is the most difficult process in this
machine....Wish you all the best.
Precor Error E4, Incomplete Initialization
Indicates that an incomplete upper PCA to lower PCA initialization occurred. When this error occurs, all lift motor and drive motor motion is ceased and the display will go blank except for the error displayed.
Run the initialization program. Caution: The treadmill's running belt will accelerate to the treadmill's maximum speed (12mph). DO NOT stand on the treadmill's running belt during the procedure.
Set the on/off switch to the OFF position. Wait a minimum of 10 seconds to allow the internal power supply to discharge.
Remove the safety key from the console and set the on/off switch to the ON position.
Press INCLINE UP and SPEED DOWN keys together. While pressing these keys, replace the safety switch on the console. Continue holding the INCLINE UP and SPEED DOWN keys until the display goes blank. INIT will appear in the time window of the display. The EEPROM is now clear and reset. After a second, 1.25 will appear in the distance/calories window, 15.0 (the maximum incline) will appear in the incline window, and 12.0 (the maximum speed) will flash in the speed/pace window.
Press QUICKSTART to begin the speed calibration process. Power bits will appear in the incline window, the target speed will appear in the time window and the actual speed will appear in the speed/pace window. At the beginning of the process, the target speed will be .5mph. The running belt will start. Once the actual speed reaches .5mph, the target speed will then change to 12mph and the running belt will accelerate until it reaches 12mph, then it will stop.
When the running belt stops, the display will return to the user mode and the initialization process is complete.
Please Google your problem. The method in the following link helped us to solve our same problem. <OKI C9300 Code 356:Belt Unit Life> http://www.fixyourownprinter.com/forums/printer/53306
There is a shortcoming, however, in this method: The reset process resets the usage stats of toners, drums, fuse and belt. After reset it displays on Print Supervision as if all the a.m. parts have been replaced with new ones.
Hello thomasg.I will answer you question gladly and precisely but I do this at my own peril. I get rated on my quality by how well I "fix" my customer's problem (your problem).The details I am about to provide to you probably wont make alot of sense to anyone that is not a field engineer that is formally trained on your copier.So I risk getting a poor rating from you since I will not have "fixed" your problem and you might choose to grade me as being not very helpful.But at least I might save you some money since you will know what's wrong BEFORE you place a service call. (which you will need considering what the error code means) So at least you have a chance of avoid being overcharged. Your copier has what is called a transfer belt that turns when making copies. The copier keeps track of the turning of this belt as it is crucial to copy process. SC 481 means that the copier cannot determine the transfer belt position. Causes: belt is damaged or main motor has stopped which drives the belt.99.9% of the time it is the flimsy belt.I have never seen this problem as the result of the main motor. I am reading this directly from the service manual. Please be kind when you rate my help. :-) Let me know if I can help you further.