OLD Ricoh 550 with lines

[MKA8623]

Any assistance on an old Ricoh 550 with thin "pencil' lines about 1 to 2 mm apart across the entire page going from operator to non operator side in copy mode only? Internal prints and prints from PC are fine. The primary technician has replaced the xenon lamp, the wire harness for the lamp, the mylar from a bulletin for the wire harness, and the 2 lamp regulator pcb's.

[Eric1968]

Did he also clean the optics?

[schooltech]

It looks like you've done some of the scanner parts, but have you tried the lens unit? It sounds like maybe the the ccd is going bad. It's pretty easy to change out.

This is also a component not used when doing an internal print, and you're getting down to finding the problem, so I would probably go here next.

A229-1796

[MKA8623]

the optics have been cleaned and inspected several times. I have the lens/ccd assembly and the SBICU pcb on order since last week.

Thank you for the input...while I'm waiting for my parts to arrive, any other ideas?

[tcs04]

Any assistance on an old Ricoh 550 with thin "pencil' lines about 1 to 2 mm apart across the entire page going from operator to non operator side in copy mode only? Internal prints and prints from PC are fine. The primary technician has replaced the xenon lamp, the wire harness for the lamp, the mylar from a bulletin for the wire harness, and the 2 lamp regulator pcb's.

Sounds like laser related to me. The CCD is analogue so I doubt it would cause what you are seeing, your decription sounds like lines in laser main scan. Could be a signal proccessing fault or laser control / polygon motor. Door switches??

This rings a bell but the memory isn't what it used to be!!

[MKA8623]

It does sound like laser lines, but, it only happens in copy mode, not print from PC or internal print, so that would basically rule out anything except something in the copy optics section. So, with prints not having an issue, I don't think it would be anything with the laser. I'm thinking SBICU because that PCB processes the data from the CCD and sends that info to the laser to write the image.

[tcs04]

I agree (will fully engage brain before typing next time)

[MKA8623]

thanks for the response. ALL input is good input...keep it coming.

[zyqwiz]

Dodgy hard drives can cause image problems.

[claudioterrible]

550 lines

hi ,i had a problem like this ,i replaced the rear development holder(AA084043) this part has a little ball bearing ,a conector built it inside(all in one piece)and may be leak voltage to the chasis ,sounds crazy but this old machine is still running after replacing this part(sorry "bout my english)

[gernah]

Any assistance on an old Ricoh 550 with thin "pencil' lines about 1 to 2 mm apart across the entire page going from operator to non operator side in copy mode only? Internal prints and prints from PC are fine. The primary technician has replaced the xenon lamp, the wire harness for the lamp, the mylar from a bulletin for the wire harness, and the 2 lamp regulator pcb's.

Hi! Sir all of there opition is ok but no specific answer,for my side I want to share with you my previous experience but depends upon with you if you apply this.
step 1:remove the slit glass and clean
step 2:clean all the glass of laser unit
step 3:if dificult to remove the laser unit remove the polygon motor and blow,you reply me if its solve,goodluck and make happy!

[gernah]

Any assistance on an old Ricoh 550 with thin "pencil' lines about 1 to 2 mm apart across the entire page going from operator to non operator side in copy mode only? Internal prints and prints from PC are fine. The primary technician has replaced the xenon lamp, the wire harness for the lamp, the mylar from a bulletin for the wire harness, and the 2 lamp regulator pcb's.

Sir,regarding with your problem,ive already encountered this but depends if you believe me ok,all answer with you is not briefly explain,this is regarding with laser unit,but the laser unit is difficult to remove it waste a time,a short cut i want thing to do so you solve this problem,remove the slit glass,holder metal plate,clean the mirrors,remove the polygon motor,blow inside thats all,gudluck!godbless.

[MKA8623]

Thank you for all the input. I don't think it is the laser or laser related items due to the fact that the problem only exists in copy mode. All prints from PC and internal (which utilize the laser) are fine. I am going to see this customer today, I will let everyone know what fixed it if I can repair.