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05-18-2017, 02:57 PM
Konica Minolta bizhub PRO 1200 J-9301 How do I know?...
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05-18-2017, 03:11 PM
JAM occurs in REVERSE ROLL. So I replaced three sensors before ROLL and replaced ADUDB, but the symptoms did not improve.

05-18-2017, 05:07 PM
Had a machine yesterday a B951 with J9352. The sensors and the wiring was all ok. It was caused by the ADU board(one one the left hand side).

Its not uncommon for the transport rollers to loose a bit of rubber and become to small to transport the paper in time.
Meaning smaller diameter means the paper does not travel fast enough and does not make it to the next sensor within the specified time.

05-19-2017, 01:15 PM
The ADU Board has already been replaced but can not be processed.

First of all, I replaced the ADU ASSEMBLY completely with the equipment 1051, which was left in the office.
I plan to slowly inspect it later. Thank you.

08-04-2017, 10:58 AM
J-9301 Symptom corrected.
As a result of disassembly confirmation, the following parts are old.
I finished after replacement.

Part Number A0G6 8132 00
Part Name Conveyance Pulley / 2
Replacement Quantity - 2

Part number A1TT 2114 00
Part Name Drive Belt / 1 309L
Replacement Quantity - 1

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