4.4.1: Printhead
The printhead should be removed and cleaned approximately every 4-6 months depending
on usage. Deterioration of print quality between scheduled cleanings would indicate a need
for more frequent cleaning. To remove and clean the printhead proceed as follows:
1.
Remove top cover (see Paragraph 4.5.1).
2.
Remove printhead (see Paragraph 4.5.24).
3.
After removing the printhead and bracket assembly from the carriage, clean the
head using a small hard-bristle brush and isopropyl alcohol. Only the printhead
should be cleaned including the wire tips and jewel bearing. All ink and ribbon
fabric residue should be removed in this process. Do not attempt to clean inside the
printhead case or around the cylinder the printhead coils.
4.
Replace in reverse order.
4.5:
CORRECTIVE MAINTENANCE
This section contains procedures for removing and replacing components of the printer.
These procedures are supported by figures and parts lists which will aid the technician in
identifying individual parts.
WARNING
The printer must be disconnected from the A.C. power supply before any corrective
maintenance procedure is performed.
4-3
Summary of Contents for XL 300 SERIES
Page 1: ...XL300 MAINTENANCE MANUAL Part No 105880 Rev A ...
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Page 29: ...Figure 3 1 Controller Schematic Part No 105947 Sheets 1 8 PC Board 105601 3 6 ...
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Page 41: ...Figure 3 3 Power Supply PCB Schematic Part No 105623 PC Board 105622 3 18 ...
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Page 43: ...Figure 3 4 Power Supply PCB Assembly Part No 105621 PC Board 105622 3 20 ...
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Page 45: ...Figure 3 5 Operator Panel PCB Schematics Part No 105815 PC Board 105800 3 21 ...
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Page 47: ...Figure 3 6 Operator Panel PCB Assembly Part No 105801 PC Board 105800 3 23 ...
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Page 56: ...Figure 4 2 Electronic Module 4 8 ...
Page 62: ...Figure 4 4 Ribbon Advance Mechanism 4 14 ...
Page 65: ...Figure 4 7 Carriage Cable Replacement Figure 4 7 Carriage Cable Replacement 4 17 ...
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Page 80: ...Figure 4 14 Paper Drive Idler Shaft 4 33 ...
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Page 115: ...Figure A 2 Controller Board Assembly Part No 105768 Sheet 1 and 2 PC Board 105767 ...
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