SHARP MX2300N vertical lines

[Guest]

Hello everybody,
I have a friend that has a Sharp mx2300 copier. The problem with it is that when it gets at normal temperature ( after about 20 copies) it starts to print on the page lots of vertical lines. I can't understand what is wrong with this machine. I have replaced the drum 3 times, developer unit from another machine, cleaned the transfer belt, verified everything and it's doing the same lines.
the copier has 214000 copies, it has been serviced regularly, drum unit has 20.000 copies, heat rollers are new, and the developer unit works fine on another machine. I have checked and the drum is filled with lines when i stop the copier in mid print, so the problem is before the transfer belt.

In the attachment there is a scanned page of a blank page copied with the machine.
MX-2300N_20140623_212458.pdf

[ZOOTECH]

Re: SHARP MX2300N vertical lines

Hello everybody,
I have a friend that has a Sharp mx2300 copier. The problem with it is that when it gets at normal temperature ( after about 20 copies) it starts to print on the page lots of vertical lines. I can't understand what is wrong with this machine. I have replaced the drum 3 times, developer unit from another machine, cleaned the transfer belt, verified everything and it's doing the same lines.
the copier has 214000 copies, it has been serviced regularly, drum unit has 20.000 copies, heat rollers are new, and the developer unit works fine on another machine. I have checked and the drum is filled with lines when i stop the copier in mid print, so the problem is before the transfer belt.

In the attachment there is a scanned page of a blank page copied with the machine.
[ATTACH]25415[/ATTACH]

Re-seat the DIMMS on the MFP pwb.

[draph]

Re: SHARP MX2300N vertical lines

I've had a bad laser do this intermittently

[dibyendu]

Is vertical lines are coming in black copy or color copy u not mentioned. If this problem found in black copy cleane Laser unit properly.

[faxman28]

Re: SHARP MX2300N vertical lines

Hello everybody,
I have a friend that has a Sharp mx2300 copier. The problem with it is that when it gets at normal temperature ( after about 20 copies) it starts to print on the page lots of vertical lines. I can't understand what is wrong with this machine. I have replaced the drum 3 times, developer unit from another machine, cleaned the transfer belt, verified everything and it's doing the same lines.
the copier has 214000 copies, it has been serviced regularly, drum unit has 20.000 copies, heat rollers are new, and the developer unit works fine on another machine. I have checked and the drum is filled with lines when i stop the copier in mid print, so the problem is before the transfer belt.

In the attachment there is a scanned page of a blank page copied with the machine.
[ATTACH]25415[/ATTACH]

I know that line pattern very well, it is lsu. have one 2300 liked blowing laser unit same line pattern in bw and color, replaced lsu and motherboard fixed problem.
also this was tip from sharp tech support , when you print sim64-5 that test pattern comes from mfp control bd, sim 64-1 test patterns are produced by pcu bd. may help in troubleshooting.