[Misc] MP C305 yellow (colour) down center of page only

[jtancrede@successos.com]

I have encountered two machines in the last little while where colours are not fully printed. Printing a test page in SP 2109 will reveal which colour is the offending one. In both cases it's the Yellow that prints down the center about 2/3 of the page and nothing on the sides (short edge feed orientation).
I have solved this problem both times by fully removing the right hand laser unit, disconnecting both the front wiring harness and the rear ribbon cable, then re-seating the ribbon cable on the laser unit, and assembling it back on the machine. Don't forget to close the ribbon cable 90 degree clamp. Otherwise, you will have trouble inserting the laser unit and the colours will be shifted.
Print another colour page in SP 2109 to verify the colour fully prints on the page. Do your chart test print to ensure everything is still aligned. If some blurriness occurs, try doing a colour alignment in maintenance mode in user tools.

[Bantams]

Re: MP C305 yellow (colour) down center of page only

Faulty batch of laser units replace them and return faulty one to Ricoh Ricoh UK are aware as are the Japs they are replacing them here FOC.

[jtancrede@successos.com]

Re: MP C305 yellow (colour) down center of page only

Thank you for that information. As it turns out, the next day (today) I got a call back from a client that I "fixed" over a week ago stating that the issue has returned. I am ordering a new laser unit and will apply my "fix" to keep them up and running until it arrives.

Faulty batch of laser units replace them and return faulty one to Ricoh Ricoh UK are aware as are the Japs they are replacing them here FOC.

[stobby2]

Re: MP C305 yellow (colour) down center of page only

Thank you for that information. As it turns out, the next day (today) I got a call back from a client that I "fixed" over a week ago stating that the issue has returned. I am ordering a new laser unit and will apply my "fix" to keep them up and running until it arrives.

hi there. Our ricoh engineer is on vacation and we have same issue. not too familiar with this model. how do u access lasers. Thanks

[jtancrede@successos.com]

Re: MP C305 yellow (colour) down center of page only

hi there. Our ricoh engineer is on vacation and we have same issue. not too familiar with this model. how do u access lasers. Thanks

The laser units are under the exit tray. Open the front door. There is one screw to remove at the left. Remove the exit tray. The right laser unit is the one to remove. One phillips screw (and spring) and two connectors (one in front and one at rear of laser unit - pull laser unit out to reach the connector)

[Lagonda]

Re: MP C305 yellow (colour) down center of page only

Faulty batch of laser units replace them and return faulty one to Ricoh Ricoh UK are aware as are the Japs they are replacing them here FOC.

Hi Bantams, have you got any paperwork from Ricoh saying there is a problem with the laser units? If so, can I have a copy 'cos Ricoh Oz haven't heard of any trouble with them and I'll need some evidence before they'll pull their head out of the sand and do something.

[Bantams]

Re: MP C305 yellow (colour) down center of page only

Hi Bantams, have you got any paperwork from Ricoh saying there is a problem with the laser units? If so, can I have a copy 'cos Ricoh Oz haven't heard of any trouble with them and I'll need some evidence before they'll pull their head out of the sand and do something.

No I don't it was my boss who spoke with the Tech Specialist at Ricoh UK sorry.

Anyway I replace the lasers on one 2 weeks ago and its Just done the same again but the previous 2 that we repaired by replacing the laser units havnt so Either they sent me 2 dud laser units or they don't know wtf is causing the fault yet oh and yes Ive also broken 2 of the friggin connectors already


PS its odd the fault on each of ours as always returned after approximately 2 weeks

[Zeldaman]

[stobby2]

Re: MP C305 yellow (colour) down center of page only

The laser units are under the exit tray. Open the front door. There is one screw to remove at the left. Remove the exit tray. The right laser unit is the one to remove. One phillips screw (and spring) and two connectors (one in front and one at rear of laser unit - pull laser unit out to reach the connector)

Many thanks for that. Nice easy job for a change and cured problem. One other item if you can help as our guy is away for two weeks. Have to go to a Ricoh mpc2500 with colour issues. Originally had a fuser fault which was rebuilt with new thermistors, fuses, belt etc but apparently since this has been done the colors are all over the place (black print is fine) just cannot re-calibrate the colors. Any way of resetting to factory set maybe to align colors. Test page puts the color lines and blocks way out. Thanks again

[ruben]

Re: MP C305 yellow (colour) down center of page only

Many thanks for that. Nice easy job for a change and cured problem. One other item if you can help as our guy is away for two weeks. Have to go to a Ricoh mpc2500 with colour issues. Originally had a fuser fault which was rebuilt with new thermistors, fuses, belt etc but apparently since this has been done the colors are all over the place (black print is fine) just cannot re-calibrate the colors. Any way of resetting to factory set maybe to align colors. Test page puts the color lines and blocks way out. Thanks again

Colours not aligning? Make sure that the laser glass is clean and any drums that need to be replace have bene. Do a forced line adjustment mode C, then mode A at least once. I usually do mode A twice. I would also do a Full Music Process Control afterwards, just in case the colours are patchy.

[stobby2]

Re: MP C305 yellow (colour) down center of page only

Colours not aligning? Make sure that the laser glass is clean and any drums that need to be replace have bene. Do a forced line adjustment mode C, then mode A at least once. I usually do mode A twice. I would also do a Full Music Process Control afterwards, just in case the colours are patchy.

Brilliant, will sort that this afternoon hopefully. Appreciate the help
Roger

[Bantams]

Re: MP C305 yellow (colour) down center of page only

Ok we seem to know what the cause is now Its caused by believe it or not (Try it it works) Leaning on the exit cover causes the laser units to somehow jump out of sync Ricoh Japan are currently Designing a New Exit Cover and there's no date yet as to when its available.................

I have successfully replicated the fault on a machine in the workshop all you have to do to fix is remove exit cover unplug front laser cables and remove laser slighty NO NEED TO UNPLUG RIBBON then reseat laser test machine stick big fecking sticker on cover DO NOT LEAN ON ME and fixed till new cover part number is available........