Ricoh mp5503 yellow disappear on printed job

[guitar9199]

Re: Ricoh mp5503 yellow disappear on printed job

What's the count on the color drums/developers?

Have you tried a different ITB assembly?

Check the yellow drum connector...make sure there are no bent pins.

[Pixtech Frameworks]

Re: Ricoh mp5503 yellow disappear on printed job

I've not check if there's any bent pin. I check tomorrow, also I've not tried another ITB.

[slimslob]

Re: Ricoh mp5503 yellow disappear on printed job

This amazes me that all colours came out ok on colour pattern in service mode.
Attached is the colour pattern.

The yellow does look a little weak. Possibly under toned. What are the Y Vt reading in SP 3030 and how do they compare to the other colors. Fixed Charge DC Bias SP 2005 and Fixed Developer DC Bias SP 2229 may have been changed. This would also require that SP 3041-001 be set to 0. SP 3041 was moved to Factory SP mode on the Cxx03 models. Yellow transfer value may have been played as well. Speaking of played with, may also have been what my office used to call Izzified. We had a lead copier tech 15 years ago, I worked mostly on computers and dictation back then, named Izzy who liked to play around with the color Gamma settings.

[Mark Bbb]

Re: Ricoh mp5503 yellow disappear on printed job

perhaps someone was a little bit to creative in SP mode, image creation?

[Pixtech Frameworks]

Re: Ricoh mp5503 yellow disappear on printed job

I've tried auto calibration, after printing then fails when scanning. I don't why this happens.

[Marwanalhajbi]

Re: Ricoh mp5503 yellow disappear on printed job

I've tried auto calibration, after printing then fails when scanning. I don't why this happens.

try to force yellow toner,does it give you complete ,if so, , test it,

also try to check the laser unit perhaps there is dust on the glass that preventing lighter yellow to print out

[Pixtech Frameworks]

Re: Ricoh mp5503 yellow disappear on printed job

I've tried force toner, it gives completed.
I check lcu polygon box and clean, still no avail.

[slimslob]

Re: Ricoh mp5503 yellow disappear on printed job

I've tried auto calibration, after printing then fails when scanning. I don't why this happens.

Three things that can usually cause the scan to fail; dirty optics, dirty ID sensor or depleted development unit. You may need to replace the development unit.

[johnnyquest]

Re: Ricoh mp5503 yellow disappear on printed job

take the endcap off the rear of the pcu. bend up the two contacts and reassemble. yellow will jump off the page. did you forget to reinstall? i have.....

[mga]

Re: Ricoh mp5503 yellow disappear on printed job

I've done auto calibration, copy and printing. But when scanning it fails and tell me to start process again. Attached are original and photocopy for more clarification.

OK if its only on copy clean all optics under glass remove laser unit very carefully clean then start again with acc

[Pixtech Frameworks]

Re: Ricoh mp5503 yellow disappear on printed job

I've found solutions guys.
one of the gears at the developer unit is broken, also the cover too.
I replaced all and everything seems to work fine now. Attached are the broken accessories.
Thanks for the contributions, deeply grateful.

[makeacopy100]

Re: Ricoh mp5503 yellow disappear on printed job

Hi All,

A customer ricoh mpc5503 yellow appears when colour pattern is printed, but printed or photocopy jobs, yellow disappears completely.
For example a job that has Red in it only Magenta appears. I have tried all I could know changing developer, opc drum, OEM toner, it seems not to work.

Does anyone knows what the issue is??

try replacing drum and developer as the drum surface is too weak to originate pixels on it, the test pattern yield more charging than copy.

[mikadonovan]

Re: Ricoh mp5503 yellow disappear on printed job

try replacing drum and developer as the drum surface is too weak to originate pixels on it, the test pattern yield more charging than copy.

Read the post right before yours. He already found the problem.

[mga]

Re: Ricoh mp5503 yellow disappear on printed job

I've found solutions guys.
one of the gears at the developer unit is broken, also the cover too.
I replaced all and everything seems to work fine now. Attached are the broken accessories.
Thanks for the contributions, deeply grateful.

Well done I thought you already replaced the developer oem would of been complete unit

Well done

[Pixtech Frameworks]

Re: Ricoh mp5503 yellow disappear on printed job

I didn't buy complete unit. OEM Developer only bought from Amazon, I had to replace other parts from damaged developer unit.
Its all fine now. Thanks.