Paper Misfeed In Bypass; No Toner In The Cartridge - Toshiba e-STUDIO 5540C Service Manual

[B] Paper misfeed in bypass
• [In case of the equipment drawer or PFP drawer] (When no drawer is installed)
• During bypass feeding
The bypass motor (M12) is turned ON

The registration sensor (S52) is turned ON
* The registration sensor (S52) is not turned ON within a fixed period of time (E120).

Bypass misfeeding

The bypass misfeed symbol is displayed.

The copying operation is disabled.

Solution: The bypass sensor (S71) is turned OFF when you remove the paper from the bypass
tray.
[C] No toner in the cartridge
• Toner density becomes low
Auto-toner sensor (S26, S27, S28, S29) detects the absence of toner

Fixed time toner supplying: Sub-hopper toner motor (M19, M20, M21, M22) ON

Not reaching the specified toner density: Auto toner sensor (S26, S27, S28, S29)

Control circuitToner cartridge replacement display:
Color copying is not accepted if the Y/M/C toner cartridge replacement display
appears.(Black copying is accepted.)
Copying is not accepted if the toner K cartridge replacement display appears.
Solution: Replace the toner cartridge with new one.
Toner is supplied  copying operation enabled
• Sub-hopper toner remaining amount decreased
Sub-hopper toner remaining amount decreasing detection: Sub-hopper toner sensor (S38, S39,
S40, S41)

Toner supplying for a specified time: Toner motor (M15, M16, M17, M18) and sub-hopper toner
motor (M19, M20, M21, M22) ON

Sub-hopper toner sensor (S38, S39, S40, S41) does not detect "full".

Control circuitToner cartridge empty display:
The auto toner sensor detects that the density is not reached and color/black
copies can be made until the toner cartridge empty status is determined
Solution: Replace the toner cartridge with new one.
e-STUDIO5540C/6540C/6550C/5560C/6560C/6570C
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