Micron Technical Reference V9 Volume 1 - 第237页

SQUEEGEE MODULE REPLACEMENT PROCEDURES Chapter Issue 6, Jul 16 Technical Reference Manual 9.9 2. Connect the following connectors to the print carriage, left hand side: • Rear Squeegee Motor • Front Squeegee Motor • Home…

SQUEEGEE MODULE

REPLACEMENT PROCEDURES

9.8 Technical Reference Manual Chapter Issue 6, Jul 16

Fitting Drip Tray 1. Slide the slot in the drip tray onto the bearing on the drip tray guide shaft.

2. Secure the drip tray to the actuator piston using the securing screw.

3. Open the speed control valves on the drip tray actuator.

Fitting Squeegee 1. Carefully position the rear of the printhead mechanism (spring beam

assembly) into the print carriage so that both printhead mechanism dowels

locate into the print carriage locating holes. Secure the unit to the print

carriage by means of the four captive screws, ensuring the pneumatic pipe

is not trapped.

Drip Tray

Drip Tray Guide Shaft

Securing Screw

Speed Control Valves

Captive Screw (in 4 positions) Spring Beam Assembly

Locating Dowel

(in 2 positions)

Print Carriage Locating

Hole (in 2 positions)

SQUEEGEE MODULE

REPLACEMENT PROCEDURES

Chapter Issue 6, Jul 16 Technical Reference Manual 9.9

2. Connect the following connectors to the print carriage, left hand side:

• Rear Squeegee Motor

• Front Squeegee Motor

• Home Sensors

• Squeegee Pressure Amplifier

3. Fit the required configuration of squeegees to the printhead mechanism

squeegee mounts.

NOTE

Squeegee fitting information is detailed in the Replacement Procedures

section of this chapter.

4. Switch the mains isolator to ON and ensure that the machine recognizes the

squeegee module fit by displaying Squeegees Uninitialised during the

machine initialisation sequence.

Drive Belt

Replacement

1. Select Open Cover Commands.

2. Select Carriage To Front.

3. Select Back.

4. Select Shut Down.

5. Select Continue.

6. Switch the mains isolator to OFF.

7. Open the front printhead cover.

8. Remove squeegees if fitted.

9. Remove the drive belt cover plate from the squeegee printhead mechanism

Rear Squeegee

Motor (9SK17)

Front Squeegee

Motor (9SK16)

Home Sensors

(9SK08)

Squeegee Pressure

Amplifier (N3SK16)

SQUEEGEE MODULE

REPLACEMENT PROCEDURES

9.10 Technical Reference Manual Chapter Issue 6, Jul 16

and remove the broken drive belt.

NOTE

In the drive belt replacement procedures, described below, the tensioning of the

belt only applies where the squeegee stepper motors are identified by the green

label shown in figure 9-3. For all other squeegee types, follow the ‘Alternative

Drive Belt Replacement’ procedure.

Rear Squeegee

Drive Belt

The rear squeegee drive belt (right hand stepper motor) can be replaced without

having to remove the printhead mechanism from the print carriage.

1. Slacken off the three screws securing the right hand motor to the motor

support plate.

2. Fit the new belt in position.

3. Using a cable tie wrap or similar, provide a loop around the top of the body

of the motor enabling the motor to be pulled using a force meter. Ensure

that the force meter is pulled in the direction which the drive belt is fitted,

figure above refers.

4. Pull the force meter until a tension of 3-4kgs is monitored on the meter.

Tighten the three screws whilst the motor is under tension.

Drive Belt Cover Plate

Drive Belts

Squeegee Printhead

Mechanism

Securing Screws

Tension in Direction of

Drive Belt Orientation

Right Stepper Motor

Rear Squeegee Motor Tensioning

Force Meter

Motor Securing Screw

Position (3 positions)

Looped CableTie

Drive Belt