Toner Supply System Checking - Ricoh FT5540 Service Manual

31 August 1989

2.6 Toner Supply System Checking

When: Toner is not being supplied in correct amounts.
Purpose:
To see if the ID sensor is causing the problem.
Target: The Toner supply clutch turns on when Vsp is greater than
one eigth of Vsg.
Measure:
SP 55
How:
Vsp and Vsg are displayed on the guidance display. These readings change
every ten copies. ("V0" is Vsg, "V1" is Vsp.)
1. Remove the rear cover (2 screws).
2. Set SP 55, and read Vsg and Vsp.
3. Divide the Vsg reading by eight. (While copying is in progress, the toner supply clutch
should turn on when Vsp is greater than one eighth of Vsg.)
4. While making twenty copies of an A3/LDG original, verify that the toner supply clutch [A]
turns on when Vsp is greater than one eigth of Vsg.
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