SATO GL4XXE Manual de Serviço descarregar pdf (Página 141)

Unit 7: Replacement Procedures

GL4xxe Series Service Manual

7-2

REPLACEMENT PROCEDURES

This unit provides in-depth instruction on all primary component and assembly replacement, in addition to most

secondary components. Use the text in conjunction with their accompanied graphics to ensure complete

comprehension throughout the process. Especially observe all cautionary or warning notations.

PRINT HEAD REPLACEMENT

Please wear protective gloves to avoid contaminating the sensitive print head surface. Before replacing the print

head, check the head counter values by printing a test pattern. Instructions relating to the Head Counter may be

found in the Configuration unit of this manual. Then turn the printer OFF, remove all labels and ribbon, and

disengage the head lock latch

1. Push the head release lever (item 1, Figure 7-1a).

2. Remove the two cables (items 2 and 3, Figure 7-1a) connected to the print head (item 4, Figure 7-1a)

3. Reconnect the two cables to the replacement print head.

4. Insert the print head at an angle, so its innermost

hook latches on to the shaft marked with a

triangular symbol.

5. Now push the outermost end of the print head so

that its hook latches on to the same shaft holding

the other end of the print head.

6. Check that the print head is securely latched and

that it does not detach spontaneously.

7. Restore power, reload media, reset the head counter, and perform a test print to ensure proper function.

CAUTION: STATIC ELECTRICITY CAN RESULT IN COMPONENT DAMAGE.

OBSERVE APPROPRIATE GROUNDING PROCEDURES WHEN REPLACING ANY

COMPONENTS.

CAUTION: EXCERCISE CARE WHEN INSTALLING THE PRINT HEAD TO

ENSURE THAT ITS ELEMENTS ARE NOT DAMAGED DURING INSTALLATION.

Figure 7-1a, Print Head replacement

Figure 7-1b, Method for latching the print head

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SATO GL4XXE Manual de Serviço Página 141