Team
Thank you for your suggestions & Support.
If you allow me let me explain case study in more details -
Customer is at about 7 hrs drive and just logged complained about faint bands. Visited customer without any parts in hand. Checked overall machine. Machin dis 30K only and problem started at 22nd copy of 30 prints job. First 21 prints ware absolutely perfect with solid colors. Problem exhibited before Fixing. Image on belt was OK ( Image no 2) Image no 1 shows solid patch of 4 colors with eqi-distance light bands ( please note that colors are reproduced but faded)
On second Visit following activities done -
Again checked all PCDU & ITB for jamming and condition.
For intermittent fluctuations in PCDU HV - Replaced HVP CB
For Intermittent charging of transfer roll in ITB - Replace ITB HVP TTS.
Replace PSU - Ac+Dc
Replace PTR with Door Assy.
Replace IPU
Motors - Transport & PCU ( Black & ITB drive).
Problem was not resolved
I have a doubt & I will appreciate any suggestion /inputs from Team.
I am doubting on PTR Contact motor OR PTR Contact Sensor OR PTR Door close Sensor. Motor is with gear box and we cannot check the rotation easily. Also movement of
ITB will be so minute that we cannot observe in running. My logic is if image on belt is ok and before fixing there is problem, it should be due to paper transfer.
If motor is malfunctioning possibly PTR & ITB gap may be veering slightly causing uneven transfer on paper.
Please suggest
Regards & Thanks in advance
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