Good morning, guys and girls.
I've got a customer with an MP4000 which, generally speaking, runs very well (despite the horror stories I've been reading here in the forum - maybe I've been lucky so far).
The only thing that I can't find a cause for it is that, once in a while, the machine will spit out jittered copies.
The first time it happened, I blamed the fact that the machine was not plugged in to a grounded outlet - proceeding to correct this. This was a couple of months ago.
Yesterday the machine did it again - and I can't find what could be causing this. The firmware is up-to-date and everytime I get to the customer, the machine's fine again - being the only proof the sheets of paper the customer shows me, since I'm unable to replicate this.
The odd thing - and what makes me believe this is an electrical problem rather than a mechanical one - is that the jitter not only affects just the horizontal lines (the vertical lines are fine) but it also makes a repeated pattern throughout the lines - I was just able to notice this because the customer handed me a copy with a table on it, where the lines are perfectly defined - as you can see in the attachments.
As a side note, and I don't know if this could be related - since the time reported doesn't mach the occurence - the machine reports a SC991 (on the scs_timer.c file) every morning around 9am (roughly the time at which the customer turns it on).
Anyone ever had one of these?
I've got a customer with an MP4000 which, generally speaking, runs very well (despite the horror stories I've been reading here in the forum - maybe I've been lucky so far).
The only thing that I can't find a cause for it is that, once in a while, the machine will spit out jittered copies.
The first time it happened, I blamed the fact that the machine was not plugged in to a grounded outlet - proceeding to correct this. This was a couple of months ago.
Yesterday the machine did it again - and I can't find what could be causing this. The firmware is up-to-date and everytime I get to the customer, the machine's fine again - being the only proof the sheets of paper the customer shows me, since I'm unable to replicate this.
The odd thing - and what makes me believe this is an electrical problem rather than a mechanical one - is that the jitter not only affects just the horizontal lines (the vertical lines are fine) but it also makes a repeated pattern throughout the lines - I was just able to notice this because the customer handed me a copy with a table on it, where the lines are perfectly defined - as you can see in the attachments.
As a side note, and I don't know if this could be related - since the time reported doesn't mach the occurence - the machine reports a SC991 (on the scs_timer.c file) every morning around 9am (roughly the time at which the customer turns it on).
Anyone ever had one of these?
Comment