how to enter SP Mode on RICOH PRO 751

**bojans** · 02-28-2021

Your problem is in the toner pump. In 99% cases. There could also be a clogged pipe or clutch.
After you put new toner, machine starts toner pump to add toner to the hoper. If the toner sensor doesn't recognise that there is toner supplied after three times it will blow toner chip. There is patch to recover blown toner chip, but you have to replace toner pump.
There is no need to enter diagnostic and force toner pump if it's not working already.

**Ravni** · 02-28-2021

Originally Posted by bojans

Your problem is in the toner pump. In 99% cases. There could also be a clogged pipe or clutch.
After you put new toner, machine starts toner pump to add toner to the hoper. If the toner sensor doesn't recognise that there is toner supplied after three times it will blow toner chip. There is patch to recover blown toner chip, but you have to replace toner pump.
There is no need to enter diagnostic and force toner pump if it's not working already.

i have ordered a new pump
how do i recover the chips?

**bojans** · 02-28-2021

You'll need a tech with access to software, who will install patch to recover the rfid chip.

**satins** · 03-01-2021

Originally Posted by bojans

You'll need a tech with access to software, who will install patch to recover the rfid chip.

Can the Rfid chip re- written?
where do we have to install the patch? Device?

Thank you in advance.

**Phil B.** · 03-01-2021

Originally Posted by satins

Can the Rfid chip re- written?
where do we have to install the patch? Device?

Thank you in advance.

Again this is a not end user job.
Just buy the chips.
Google it.

Sent from my SM-G960U using Tapatalk

**bojans** · 03-01-2021

Originally Posted by satins

Can the Rfid chip re- written?
where do we have to install the patch? Device?

Thank you in advance.

No, you do not rewrite rfid chips.
There is firmware available on ricoh site. You install it same way as firmware, with SD card. It doesn't rewrite chip, just makes machine read 'blown' chip.

**slimslob** · 03-01-2021

All of these suggestions about toner pumps and RFID chips are of no use if he cannot get into SP mode. If service lock is turned in user tools and the admin password has been changed. A trained tech is his only answer.