Q5690A PAPER FEED 1.2.5 Remaining paper detection Remaining paper is detected by the remaining paper sensors 1 to 4 (PS102 to PS105). FRONT [7] II UNIT EXPLANATION [2] [5] [1] [4] [3] [6] [1] Actuator [5] [2] Direction of rotation while in tray up drive [6] Remaining paper sensor 4 (PS105) Remaining paper sensor 3 (PS104) [3] [7] No paper sensor (PS108) Remaining paper sensor 1 (PS102) [4] Remaining paper sensor 2 (PS103) As paper gets reduced, the up/down plate goes up little by little. The actuator at the rear rotates in interlock with this up drive. The remaining paper is detected in eight steps in combination of the PS102 to the PS105 that are turned on and off by the actuator.
When the PS108 turns on, no-paper detection is made with a message shown on the display of the engine. * The remaining paper indication on the operation board is made by 4 bars that turn on or flash. The { : Sensor on number of sheets to be stacked varies depending on the thickness of paper. 2-5 No.
of sheets to be stacked (in 80g/m2 sheet) PS102 PS103 PS104 PS105 Remaining paper indication on operation board Less than 600 sheets 1 bar on the LCD 600 to 850 sheets { 1 bar on the LCD 850 to 1100 sheets { { 2 bars on the LCD 1100 to 1400 sheets { { { 2 bars on the LCD 1400 to 1700 sheets { { { { 3 bars on the LCD 1700 to 1950 sheets { { { 3 bars on the LCD 1950 to 2250 sheets { { 4 bars on the LCD More than 2250 { 4 bars on the LCD