Question about Konica Minolta Office Equipment & Supplies
1. Drive pulley (A) (p/n 540076531) slips on the lens motor (M7) shaft, or the timing belt (p/n 540077520) falls off and is lodges between the motor and pulley.
As an interim repair for a slipping drive pulley (A), apply a small amount of instant adhesive between the drive pulley and motor shaft. As a permanent repair,
replace M7 with the new-style (p/n 25BA-7404). The motor must be used with the new-style adjustable drive plate assembly (p/n 5400-6321). In addition,
there is a motor cover mylar (p/n 35AE61990) that prevents M7 from interfering with the door detect wiring cover. The mylar is placed onto the underside of
the motor. These parts can not be mixed with the original parts. They must be used as a set.
Note: For more detail, refer to Parts Information Bulletin #81.
2. The 5V DC to the LCD needs adjustment. Adjust VR1 on the operation board.
1. The front door interlocks are not actuated. Open the front panel of copier and ensure that (green) handles 1 and 2 are positioned to the far right. Close the
front panel and power ON.
2. F4 (28V DC, 4A) or F5 (5V DC 2.5A) on the copier control board is open. Ensure that there are no 5V DC or 28V DC loads shorting to ground. Repair
shorting condition as necessary. Replace F4 (p/n 963012100) or F5 (p/n 936012300).
Note: If replacing the fuse, see Technical Operations Bulletin #A15, dated 7/24/95.
3. No 5V DC output from the DCPS with all loads disconnected. Check all 5-volt loads for shorting to ground. Repair as necessary. Replace the DCPS (p/n
4. Main CB failure. Replace the main CB (p/n 35BE-9010).
Posted on Jul 29, 2009
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Posted on Jan 02, 2017
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