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Toner Supply

Detailed Descriptions

Detailed Descriptions

Detailed Descriptions

(evaluation method C=TRUE)" is satisfied, it is determined as toner end.

 Determination method A: Sheet counter (SP3-133-011 to 014) > Sheet counter threshold value (min)

 Determination method B: Sheet counter (SP3-133-011 to 014) > Sheet counter threshold value (max)

 Determination method C: Pixel counter (SP3-133-031 to 034) > Pixel counter threshold value

Pattern (2): Determination by Vt output

When the deviation between the TD sensor output value and TD sensor target value has become large, it is taken as toner end.

 After definite toner end has been determined

The difference between the output of the TD sensor (Vt: SP3-210-001 to 004) and the target value of the TD sensor (Vtref: SP3-230-001 to 004) is computed as the delta Vt, and values of the delta Vt larger than the threshold value (SP3-131-001) are integrated as "sigma delta Vt" (SP3-132-001 to 004).

If the integration value of "sigma delta Vt" is larger than the threshold value (SP3-132-002), it is determined to be toner end.

 Before definite toner near end is determined (bottle full or estimated toner near end) The computation is done in the same way as for definite toner near end, but separate values for the delta Vt threshold value and "sigma delta Vt" threshold value are used.

 Delta Vt threshold value before toner near end: SP3-131-011

 Sigma delta Vt threshold value before toner near end: SP3-131-012

SP Descriptions

 SP3-101-001 to 004 (Toner Status :Disp)

Displays the amount of toner remaining for each color. Uses a descending 10-step scale: 10: Full, 2: Estimated toner near end, 1: Definite toner end, 0: Toner end

 SP3-110-001 to 004 (Near End Thresh)

Sets the threshold amount of judging near-toner end.

 SP3-102-001 to 004 (Toner Remain:Disp: Bottle Motor Bk, C, M, Y)

Displays the remaining toner calculated from the motor running time.

 SP3-102-011 to 014 (Toner Remain:Disp: Pixel Bk, C, M, Y)

Displays the remaining toner calculated from imaging size.

 SP3-102-021 to 024 (Toner Remaining: Display: Fill Amount Bk, C, M, Y)

Display the filler content of new bottle.

 SP3-120-001 to 004 (TE Sn Detect Thresh: Bk, C, M, Y)

Sets the starting threshold of the near-toner end detection by the toner end sensor.

 SP3-121-001 to 004 (TE Counter: Disp: Bk, C, M, Y)

Displays the number of times the toner end sensor detected toner end.

Toner Supply

 SP3-122-001 to 004 (TE Sn NE Thresh: Bk, C, M, Y)

Sets the number of toner end detection to start near-toner end detection.

 SP3-163-001 (Bottle Drive: Set Rotation Time at Toner End)

Sets the empty turn time[ms] at almost toner-end.

 SP3-133-011 to 014 (TE Detect :Set Page Cnt:K, C, M, Y)

Displays the amount of sheets printed after toner near end is fixed.

 SP3-133-031 to 034 (TE Detect :Set Pxl Cnt:K, C, M, Y)

Displays the amount of toner used in cm2 after toner near-end is fixed.

 SP3-210-001 to 004 (TD.Sens:Vt :Disp: Current: K, C, M, Y)

Displays the latest TD sensor output.

 SP3-131-001 (Vt TE Thresh: Delta Vt Thresh)

Specifies the threshold to start adding the delta Vt after toner Near End.

 SP3-132-001 to 004 (Delta Vt Sum: Bk, C, M, Y)

Displays the integrated value of delta Vt.

 SP3-131-011 (Delta Vt Thresh BF NE)

Specifies the threshold to start integrating delta Vt before toner Near End.

 SP3-131-012 (Delta Vt Sum Thresh BF NE)

Specifies the threshold of delta Vt to check Toner End before toner Near End.

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