Cuzz I like to know......

[copytech22]

I understand the values of Vsg and Vsp in the aspect of a troubleshooting tool when encountering various issues such as certain ID sensor codes, copy quality issues, drum surface condition.... I also understand Vsg is the sensor looking at the Bare Drum and Vsp is the sensor looking at a patch applied to the drum.

But what I would like to know is EXACTLY what Does the 3 letters of each of the 2 mean?

[KopyKat]

That is on a "Need To Know" basis.


It's been so very long since I have been to 'Bone-Head 101' at Ricoh that I would have to look that up. Try looking it up in some of your older manuals. You MAY find it there.

[copytech22]

That is on a "Need To Know" basis.


It's been so very long since I have been to 'Bone-Head 101' at Ricoh that I would have to look that up. Try looking it up in some of your older manuals. You MAY find it there.

I have looked and the ONLY references I get are "Make sure the Vsg is..." or Refs to SC3.. indicating Vsg of 5.0 or 0 when the Pulse width is Maxed @ 277...

But No where can I find Vsg or Vsp = Voltage<blank>Patch or whatever it actually means.

[Rigger]

is V s g G =grid (maybe)

[KopyKat]

All I know is the capital V usually means Voltage in Ricoh Speak...as for the other letters, does it really matter in the big scheme of service and repair? No, not really. Just be glad you know how these can help in troubleshooting and don't try to ill your head with useless info.

If you want a detail of process control see this.

If it will make you feel better...Vsp means Voltage sensor patch and Vsg means Voltage sensor ground...no really I just made that up.

[copytech22]

is V s g G =grid (maybe)

Well Vsg refers to the amount of voltage received back from the ID sensor after it has been shined onto the BARE drum surface using a preset voltage:cool.

I am trying to find out what the 3 letters of Vsg and Vsp ACTUALLY stand for.
MAYBE????

[copytech22]

All I know is the capital V usually means Voltage in Ricoh Speak...as for the other letters, does it really matter in the big scheme of service and repair? No, not really. Just be glad you know how these can help in troubleshooting and don't try to ill your head with useless info.

If you want a detail of process control see this.

If it will make you feel better...Vsp means Voltage sensor patch and Vsg means Voltage sensor ground...no really I just made that up.

I have always, since I was 4 yrs old had the WHHHYYYY??????? bug, I just never lost it LOL!!!! But if you would have NOT told me that you MADE THAT UP I would have walked around from now on spouting off "the Voltage sensor patch indicates...." LOL. Boy that would have been embarrassing! especially in front of the 20+ yr vets. BUT THEY BOTH SOUNDED CONVINCING!

[KopyKat]

I would have walked around from now on spouting off "the Voltage sensor patch indicates...." LOL. Boy that would have been embarrassing! especially in front of the 20+ yr vets.

OK, I get it now, you're trying to impress the older techs...I'm a 20+ year Ricoh tech.

Two Words For You:

Grow Up!

[nmfaxman]

Voltage Signal Grey / Voltage Signal Patch.
ID sensor feed back for greyscale and black patch produced on the drum.
Compares patch on the drum to TDS or (Density) sensor output and adjusts charge to compensate.
Most copiers all work the same but call it by different names.

[copytech22]

OK, I get it now, you're trying to impress the older techs...I'm a 20+ year Ricoh tech.

Two Words For You:

Grow Up!

NOT TRUE. I was just saying rather than the acronym I prefer the words. and If I would use YOUR words when talking to a senior tech, that would have been embarrassing.

[copytech22]

Voltage Signal Grey / Voltage Signal Patch.
ID sensor feed back for greyscale and black patch produced on the drum.
Compares patch on the drum to TDS or (Density) sensor output and adjusts charge to compensate.
Most copiers all work the same but call it by different names.

Vsg (I thought) referred to BARE drum. Vsp was Patch (immediate post pattern BLACK and Then Grey scale patch immediately after black)?

[KopyKat]

VSG = The ID sensor output when checking the erased drum surface.

VSP = The ID sensor output when checking the ID sensor pattern image.

I guarantee you that if you refer to Vsp or Vsg as the full words, if you ever find them, any tech with any experience will look at you like "WTF are you talking about? "

[copytech22]

VSG = The ID sensor output when checking the erased drum surface.

VSP = The ID sensor output when checking the ID sensor pattern image.

I guarantee you that if you refer to Vsp or Vsg as the full words, if you ever find them, any tech with any experience will look at you like "WTF are you talking about? "

LOL your prob right. But there is still that little issue of WHY?????????????

[10871087]

I prefer the words.

I prefer the acronym, it is a lot easier to type into the Blackberry when closing out calls.

[bonnie750]

Image density control method - US Patent 5038175 Description

This is the description of the patent, hope this helps ease your pain