Ricoh Neptune-P1, Service Manual

Page: 401 / 457

• SP2927-3: End Level
Toner Near End
When Vsp/Vsg is larger than SP2927-1 three times in sequence, the machine shows a toner near-end
indication. The default is 0.145. If the setting is higher, the quantity of toner in the cartridge becomes less
before toner near-end occurs. This can cause paler images at the end of the toner cartridge’s life. When
toner near-end occurs, the toner near-end indicator lights on the operation panel.
Toner End
When Vsp/Vsg is larger than the setting for SP2927-3 (Default: 0.165) three pages in a row, the machine
prints one more page and then stops immediately.
When toner end occurs, the toner end indicator lights on the operation panel and copying stops. The
machine cannot be used until:
• A new toner cartridge is installed.
• The machine recovers from toner end.
Toner End Recovery
The flow chart on the next page shows the recovery sequence when a new toner cartridge is installed after
toner end occurs. After toner end occurs, toner end recovery starts if you open and close the toner hopper
cover.
The machine makes an ID sensor pattern to detect if a supply of toner is available. If Vsp/Vsg is less than
Vref, then the machine detects recovery from toner end, and goes out from the toner end condition. If Vsp/
Vsg is more than Vref 5 times, then the machine stays in the toner end condition, and it cannot be used. In
some conditions, the machine recovers from toner end if you switch the machine off and on.
6. Details
400
6