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Unit 6: Maintenance
CL408-412e Supplemental Manual
6-3 PN: 9001159A
REPLACEMENT PROCEDURES
This chapter 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
If the print head becomes damaged or worn, it can be easily removed and replaced without having to make critical
adjustments. 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.
1. Switch off the printer and disconnect power supply cord.
2. Open the right housing cover and latch print head release lever (1, Figure 6-1a) as necessary.
3. Remove screw (2) from upper print assembly (3) securing defective print head (4, Figure 6-1b).
4. Unlatch print head release lever (1) and withdraw defective print head (4) from within print assembly (3).
5. Disconnect the two wiring harnesses (not shown) from defective print head (4).
6. Reconnect two wiring harnesses (not shown) to replacement print head (4).
7. Insert replacement print head (4) into print assembly (3) and latch lever (1, Figure 6-1a).
8. Secure replacement print head (4) to print assembly (3) and secure using screw (2).
9. Restore power, reset the head counter, and test print.
Figure 6-1a, Print Head Replacement
NOTE: Each of the printer’s wiring harness connectors are different from all others to
ensure proper mating. Mate each matching half for reconnection.
NOTE: Apply the print to the upper surface fo the print assembly’s print bracket and
ensure the alignment pins insert into their respective slots.
2
3
1