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ALS 20x 256 GB C D EF BA [30] Sensor connectors: A Label sensor B Product sensor C Optional: Rotary encoder D Optional: Roll diameter check E (ALS 20x) Optional: Alternative label sensor F (ALS 256) Optional: Alternative label sensor 31 CONTENTS 3.2 INSERTING LABEL MATERIAL 3.2 3.2.1 Prerequisites – The label dispenser is turned off at the main switch [31A] (switch set to ‘O’). . Check that the safety installations are working properly. . Inspect the machinery for any visible damage. Report any defects immediately. . Remove any unnecessary materials and objects from the operating area of the unit. . Make sure that only authorised persons are within the operating range of the machine. . Use the required personal protective equipment correctly; forexample, wear a hairnet, safety [31] Main switch on the housing. glasses. ALS 20x 256 GB A 32 CONTENTS 3.2 INSERTING LABEL MATERIAL ALS 20x 256 GB 3.2.2 Inserting a label roll WARNING! Risk of injury due to moving and rapidly rotating parts! . Before inserting the label roll, ensure that the device is turned off at the main switch. . Do not under any circumstances turn the device on before the label strip is threaded in completely. Removing spent backing paper Assuming backing paper has gathered on the rewinder [32A] : . Press the release button [32B]. – The tensioning mechanism of the rewinder is slackened. . Remove the rewound backing paper. Removing glue residue . If necessary, clean the following components: – Dispensing plate – Deflection rollers – Drive rollers – Pressure roller . Follow the directions provided in section “Maintenance and cleaning” on page 47. Inserting a new label roll . Push the material roll [33A] onto the unwinder as far as it will go. . Rotate the rotary knob [33B] in a clockwise direction until the label roll sits tightly. . Run the label strip around the dancer arm as shown in the figure [33C]. BA [32] A Rewound backing paper B Release button C Backing paper path [33] Inserting the material roll – Part 1. A C B 33 CONTENTS 3.2 INSERTING LABEL MATERIAL ALS 20x 256 GB 3.2.3 Threading the label roll Threading guide BA [34] Threading guide for label rolls with labels facing outwards. A Right-handed version B Left-handed version A B [35] Threading guide for label rolls with labels facing inwards. A Right-handed version B Left-handed version 34 CONTENTS 3.2 INSERTING LABEL MATERIAL ALS 20x 256 GB Threading the label roll at the dispensing edge . Unroll around 1 m of label strip and remove the labels from it. . Pass the backing paper around the first deflection roller [36A] and through the slot in the sensor [36B]. . Feed the backing paper under the pressure roller [36C] to the dispensing plate [36D]. . Feed the backing paper around the dispensing plate to the second deflection roller [36E]. C A B D E [36] Path of the label strip at the dispensing edge. A 1st deflection roller B Label sensor C Pressure roller D Dispensing plate E 2nd deflection roller 35 CONTENTS 3.2 INSERTING LABEL MATERIAL ALS 20x 256 GB Threading the label roll onto the drive roller . Open the pressure roller. To do so, rotate the lever [37D] in a clockwise direction. . Feed the backing paper around the deflection roller [37B], drive roller [37C] and the dancer arm [37A]. . Close the pressure roller. To do so, rotate the lever until it snaps in noticeably. [37] Open the pressure roller. C D BA [38] Close the pressure roller. Fastening the label roll to the rewinder . Clamp the backing paper to the rewinder as shown and tighten it [39]. . Manually rotate the rewinder by one turn. [39] Fastening the backing paper to the rewinder. 36 CONTENTS ALS 20x 256 GB 3.3 MECHANICAL SETTINGS 3.3 3.3.1 Adjusting the unwinder’s core diameter Tool: – 3 mm hexagon (Allen) screwdriver The unwinder can be adjusted with core adapters [40B] to fit the inner diameter of the label roll. The adapters must be fitted and dismantled in different ways depending on this diameter: – 38.1 mm (1”) core . Unscrew the screws [40A] (3 for each adapter) and remove the adapters. A B [40] Core adapter positions for a core diameter of 76.2 mm. – 76.2 mm (3”) core . Screw on the adapters, as is shown in Figure [40]. – 101.6 mm (4”) core . Screw on the adapters, as is shown in Figure [41]. 3.3.2 Positioning the pressure roller . Open the pressure roller [42B]. To do so, rotate the lever [42C] until the roller snaps up. . Release thumb screw [42A]. . Align the pressure roller over the backing paper so that it is centred. . Close the pressure roller. . Screw the thumb screw tight. [41] Core adapter positions for a core diameter of 101.6 mm. B C A [42] Setting the position of the pressure roller (B). 37 CONTENTS 3.3 MECHANICAL SETTINGS ALS 20x 256 GB 3.3.3 Positioning the label sensor . Release the thumb screw. . Position the sensor along the axle in such a way as to allow it to register the spaces between the labels. The LED [43A] lights up when the sensor is positioned over a label. B A [43] Label sensor from Wenglo...

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