Results 1 to 8 of 8
  1. #1
    Technician
    Join Date
    Aug 2017
    Posts
    17
    Rep Power
    0

    What vsg and vsp stand for_

    Hi.


    I would like to know what vsg and vsp stand for, I do not need their meaning related to the operation of the machine, I need to know the word for each letter.


    Thanks a lot.

  2. #2
    Ex-Tech Xcelsior's Avatar
    Join Date
    Jan 2017
    Location
    Millersburg
    Posts
    24
    Rep Power
    15

    Re: What vsg and vsp stand for_

    All it's ever listed as is:
    Vsg: ID sensor output when checking the bare drum.
    Vsp: ID sensor output when checking the ID sensor pattern.

    But I believe it's along the lines of:
    Vsg = Voltage sensor ground
    Vsp = Voltage sensor pattern


    Someone may correct me, it's been a while since I was in the field.
    Attached Files Attached Files
    Previous Ricoh Field Service Tech II - November 2017.

  3. #3
    SanDiegoCopierRepair.com 1,000+ Posts
    What vsg and vsp stand for_

    blazebusiness's Avatar
    Join Date
    Apr 2010
    Location
    From NY--- live in San Diego , Ca.
    Posts
    1,248
    Rep Power
    51

    Re: What vsg and vsp stand for_

    Quote Originally Posted by danielhaze View Post
    Hi.


    I would like to know what vsg and vsp stand for, I do not need their meaning related to the operation of the machine, I need to know the word for each letter.


    Thanks a lot.
    I like Excelsiors educated guess...... Remember the Core Technology course from the old days on Image formation and control? The "V" in VSG and VSP refers to a type of sensor. Process control in copiers used either a "Potential Sensor"(latent image control) in one type of system

    Or or a "V" sensor---- A reflective photosensor similar to the modern ID sensor that is used to indirectly measure the drum potential (image density control)in a different type of system.

    Seems plausible that the V refers to Voltage detected/measured by the Erased or bare drum (VSG) and Voltage detected/measured by the pattern measured by the "V" sensor(VSP).

    Now, moving on to modern times...the V sensor is old technology replaced by the ID sensor.........but the terminology VSG and VSP still exists but refers to the id sensor output Voltage not the V sensor output. Leftover terminology. Really should be called IdVSG and IdVSP instead of VSG and VSP.
    Last edited by blazebusiness; 07-12-2018 at 09:20 AM.
    Anything can be made to work if you fiddle with it long enough- San Diego Copier Repair.com

  4. #4
    Retired 10,000+ Posts
    What vsg and vsp stand for_

    slimslob's Avatar
    Join Date
    May 2013
    Location
    Bakersfield, CA
    Posts
    34,126
    Rep Power
    989

    Re: What vsg and vsp stand for_

    Quote Originally Posted by blazebusiness View Post
    I like Excelsiors educated guess...... Remember the Core Technology course from the old days on Image formation and control? The "V" in VSG and VSP refers to a type of sensor. Process control in copiers used either a "Potential Sensor"(latent image control) in one type of system

    Or or a "V" sensor---- A reflective photosensor similar to the modern ID sensor that is used to indirectly measure the drum potential (image density control)in a different type of system.

    Seems plausible that the V refers to Voltage detected/measured by the Erased or bare drum (VSG) and Voltage detected/measured by the pattern measured by the "V" sensor(VSP).

    Now, moving on to modern times...the V sensor is old technology replaced by the ID sensor.........but the terminology VSG and VSP still exists but refers to the id sensor output voltage not the V sensor output. Leftover terminology. Really should be called IdSG and IdSP instead of VSG and VSP.
    The V does and always has stood for voltage.

  5. #5
    Technician
    Join Date
    Mar 2017
    Posts
    26
    Rep Power
    0

    Re: What vsg and vsp stand for_

    difficult topic

  6. #6
    Professional Moron 2,500+ Posts TonerMunkeh's Avatar
    Join Date
    Apr 2008
    Location
    Shitsville, UK
    Posts
    3,852
    Rep Power
    108

    Re: What vsg and vsp stand for_

    Voltage substrate ground and voltage substrate patch.
    It's 106 miles to Chicago. We've got a full tank of gas, half a pack of cigarettes, it's dark and we're wearing sunglasses.

    Hit it.

  7. #7
    worker drone 250+ Posts
    Join Date
    Dec 2009
    Posts
    460
    Rep Power
    40

    Re: What vsg and vsp stand for_

    Quote Originally Posted by TonerMunkeh View Post
    Voltage substrate ground and voltage substrate patch.
    Bare drum (Vsg) when correct is 4.0 volts. The machine adds toner and tries to keep Vsp at one eighth the value of Vsg or .5V
    There is much more but that is enough boredom for today.

  8. #8
    Retired 10,000+ Posts
    What vsg and vsp stand for_

    slimslob's Avatar
    Join Date
    May 2013
    Location
    Bakersfield, CA
    Posts
    34,126
    Rep Power
    989

    Re: What vsg and vsp stand for_

    The older models used to have a lot more information on process control in the detailed descriptions section, section isn't even included in many current Service Manuals. Some models now have it as an addition manual.

Tags for this Thread

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Get the Android App
click or scan for the Copytechnet Mobile App

-= -= -= -= -=


IDrive Remote Backup

Lunarpages Internet Solutions

Advertise on Copytechnet

Your Link Here