Diagramas de clases del diseño

Component Name and Function

Tray2 Feed Lift Motor Tray1 Feed Lift Motor

Tray1 Nudger Solenoid

Tray2 Nudger Solenoid

Tray2 Paper Size Sensor Tray2 Level Sensor

Tray2 No Paper Sensor

Tray1 Paper Size Sensor Tray1 Level Sensor

Tray1 No Paper Sensor

Figure 42 Trays 1 and 2

Tray3 Feed Lift Tray3 Nudger Solenoid

Tray3 Paper Size Sensor

Tray3 Level Sensor

Tray3 No Paper Sensor

Figure 43 Tray 3

Note: Trays 3 and 4 are functionally the same. This describes 3 only.

Trays 1,2,3 and 4 Paper Size Sensors detect whether the trays are inserted or not and the also sense the size of the paper in the trays.

Trays 1,2,3 and 4 No Paper Sensors detect whether the trays contain paper or not.

Trays 1,2,3 and 4 Feed Lift Motors are stepper motors the raise the trays by rotating CCW and feed paper by rotating CW.

Trays 1,2,3 and 4 Nudger Solenoids raise and lower the Nudger Rolls in the trays.

Trays 1,2,3 and 4 Level Sensors sense that the trays have raised to the feed position.

Trays 1 through 4 Paper Size Sensing

Paper size sensing in the trays is accomplished with a combination of on and off operations of the switches that make up the Tray Paper Size Sensors. When the paper guide of any tray is moved, the protrusions at the rear of the tray move with them. When this happens, there is a change in the on and off operations of the switches and how they are combined.

Figure 44

Tables 15 and 16 show the relationship between paper sizes and voltages that are output from the Tray Paper Size Sensors according to the on and off combinations.

Trays 1 and 2 have two switches that make their Tray Paper Size Sensors.

Table 15 Tray 1/2 Tray Paper Size Sensor

Paper Size AD value

(*) Size is undecided

Trays 3 and 4 have five switches that make up their Tray Paper Size Sensors. The paper size is determined by Switch 5 on or off position (digital value) in combination with the on or off combinations of Switches 1 through 4. Switches 1 though 4, in combination, create an output voltage (analog value)

Table 16 Tray 3/4

In the adjustment data, “Above setup sizes” and “Depending on size group” can be selected.

Raising Trays 1 through 4

Trays 1 through 4 are all raised in the same way. Their inner Bottom Plate is raised until it reaches the feed position. Figures 45 and 46 give an overview this operation.

Figure 45 Tray Down

Figure 46 Tray Raised

Raising Operation

When the tray is inserted, the Tray Nudger Roll Solenoid is turned on and lowers the Nudger roll. After a specified time the Tray Level Sensor detects whether of not the Bottom Plate is raised. If the bottom Plate is already raised with the Tray Level Sensor blocked, the Tray Nudger Solenoid is turned off and the Nudger Roll lifts.

If the Tray Level Sensor is unblocked, the Tray Feed Lift Motor is turned on to operate CCW to raise the Bottom Plate. When the Tray Level Sensor becomes blocked, the Tray Feed Lift Motor is stopped. A specified time after the Tray Level Sensor is blocked, the Tray Nudger Solenoid is turned off and the Nudger Roll lifts.

During paper feed, before the Nudger Roll Solenoid is turned off, the Tray Level Sensor checks the stack height. If the Tray Level Sensor is unblocked, the Tray Feed Lift Motor is operated CCW to lift the Bottom Plate until the Tray Level Sensor is blocked.

When the tray is pulled out, the gears are disengaged and gravity lowers the tray.

Trays 1 through 4 Remaining Paper Detection

When the tray is raised, as described in the previous section, the length of time to lift the tray is measured. Based on that time, the ratio of paper remaining in the tray is

calculated. Table 17 shows the relationship.

Table 17

Time required to lift up tray (msec) Ratio of Remaining

MSI (Multiple Sheet Inserter)

Component Name and Function

MSI Paper Size Sensor MSI Lift Up Motor

MSI Nudger Solenoid

MSI Lift Up Sensor

MSI Paper Set Sensor

MSI Down Sensor MSI No Paper Sensor

Figure 47 MSI

The MSI Paper Size Sensor output a voltage value (analog) based on variable resistance. It senses paper width (fast scan direction).

The MSI No Paper Sensor detects if there is paper on the MSI.

The MSI Paper Set Sensor detects if the MSI is loaded with paper.

The MSI Lift Up Sensor senses that the MSI Bottom Plate has been raised.

The MSI Down Sensor senses that the MSI Bottom Plate has been lowered.

The MSI Lift Up Motor is used to raise and lower the MSI Bottom Plate.

The MSI Nudger Solenoid is used to raise and lower the MSI Nudger Roll.

MSI Paper Size Sensing

When the MSI Side Guides are moved, the variable resistance value of the MSI Paper Size Sensor changes. Based on a specific voltage output the paper width is calculated.

The MSI Paper Size Sensor senses size in the fast scan direction only. The paper length is calculated based on the length of time from the start of the Registration Control to the trail edge of the paper passing the Regi Sensor. Based on the paper length and the width sensed, a standard size is automatically sensed. Table 18 shows the

combinations.

Table 18 Standard Size

[mm] Allowable Size Range [mm] Distinguishable Size Paper Size

width length width length FXAP/

GCO XC XE/

Raising and Lowering the MSI

Paper is raised and lowered by the MSI Lift Up Motor raising and lowering the MSI Bottom Plate. The raising is done to lift the paper into the feed position. The lowering is done so that paper can be loaded.

The MSI Bottom Plate is raised when the MSI Paper Set Sensor detects paper and the MSI is selected as the feed tray. The MSI Nudger Solenoid is turned on lowering the Nudger Roll. After a specified time the MSI Lift Up Sensor detects if the Bottom Plate is raised. If the MSI Bottom Plate is already raised with the MSI Lift Up Sensor blocked, the MSI Nudger Solenoid is turned off and the Nudger Roll lifts.

If the MSI Lift Up Sensor is unblocked, the MSI Feed Lift Up Motor is turned on to raise the Bottom Plate. When the MSI Lift Up Sensor becomes blocked, the MSI Feed Lift Up Motor is stopped. A specified time after the MSI Lift Up Sensor is blocked, the MSI Nudger Solenoid is turned off and the Nudger Roll lifts.

During paper feed, before the MSI Nudger Roll Solenoid is turned off, the MSI Lift Up Sensor checks the stack height. If the MSI Lift Up is unblocked, the MSI Feed Lift Up Motor is operated to lift the Bottom Plate until the MSI Lift Up Sensor is blocked.

Lowering the MSI Bottom Plate is when the MSI Down Sensor is unblocked at the following times

At Power on

When the MSI No Paper Sensor senses the supply has run out At the end of a job

When the MSI Cover Interlock Switch and Front Cover Interlock Switch are both closed The MSI Lift Up Motor lowers the MSI Bottom Plate until the MSI Down Sensor is blocked. The MSI Lift Up Motor is then stopped.

HCF (High Capacity Feeder)

Component Name and Function

Tray 6 Paper Size Sensor (Letter)

Tray 6 No Paper Sensor Tray 6 Level Sensor

Tray 6 Paper Size Sensor (A3)

Tray 6 Feed Lift Motor

Tray 6 Nudger Solenoid

Tray 6 In Sensor

Figure 48 HCF Trays

Note: Trays 6 and 7 are the same. This description will work for both.

Trays 6 and 7 Paper Size Sensor A4 and Paper Size Sensor Letter sense the size of paper in the trays.

Trays 6 and 7 In Sensors detect if the trays are inserted.

Trays 6 and 7 No Paper Sensors detect if there is any paper in the trays.

Trays 6 and 7 Feed Lift Motors are stepper motors used to raise the trays by rotating CCW and feed paper by rotating CW.

Trays 6 and 7 Nudger Solenoids raise and lower the Nudger Rolls.

Trays 6 and 7 Level Sensors sense that the bottom plates have been raised to the feed position.

HCF Paper Size Sensing

Sensing the size of the paper in the trays is based on a combination of on and off operations of two sensors, the Tray Paper Size Sensor A4 and the Tray Paper Size Sensor Letter.

When the paper width and length guides are moved and the tray is inserted into the HCF, the state of both sensors checked. The combination of blocked or unblocked states determines the paper size.

The sensors are located at the rear of the trays as indicated by Figure 49.

Tray A/B Size Sensor Letter Size

Sensor

Figure 49 HCF Size Sensors

Table 19 shows the relationship between paper sizes and combinations of the on and off operations of the Tray Paper Size Sensor A4 and Tray Paper Size Senor Letter.

Table 19

Tray Paper Size Sensor

Paper Size A4 Letter

B5 LEF or 7.25"x10.5" LEF * OFF OFF

8.5"x11" LEF ON OFF

A4 LEF OFF ON

A4 extension (non-standard setup) OFF OFF

*Switching between B5 LEF and 7.25” x 10.5” LEF is done in NVM

Raising the HCF Trays

When the tray is inserted, the Tray Nudger Roll Solenoid is turned on and lowers the Nudger roll. After a specified time the Tray Level Sensor detects whether of not the Bottom Plate is raised. If the bottom Plate is already raised with the Tray Level Sensor blocked, the Tray Nudger Solenoid is turned off and the Nudger Roll lifts.

If the Tray Level Sensor is unblocked, the Tray Feed Lift Motor is turned on to operate CCW to raise the Bottom Plate. When the Tray Level Sensor becomes blocked, the Tray Feed Lift Motor is stopped. A specified time after the Tray Level Sensor is blocked, the Tray Nudger Solenoid is turned off and the Nudger Roll lifts.

During paper feed, before the Nudger Roll Solenoid is turned off, the Tray Level Sensor checks the stack height. If the Tray Level Sensor is unblocked, the Tray Feed Lift Motor is operated CCW to lift the Bottom Plate until the Tray Level Sensor is blocked.

When the tray is pulled out, the gears are disengaged and gravity lowers the tray