Printronix P9012, Maintenance Manual

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3–3 Scheduled Maintenance
Inspecting the Printer
Visually inspect the printer using Table 3–2 as a guide. Correct any condition
found during inspection that could affect printer performance or reliability.
Table 3–2. Physical Inspection
Item(s) to Inspect Procedure
Cabinet, base, frame Check for damage, cracks, breaks, dents, gouges, scratches,
warpage, rust, corrosion, and proper finish.
Attaching hardware Inspect fasteners for thread damage, rust, or corrosion.
Nameplates Inspect for legibility and damage.
Printer cover, cabinet door(s),
damper/struts Inspect for damage and loose or missing hardware. Check that the
door(s) open/close without binding and stay closed. Check that
the printer cover opens/closes smoothly and damper/struts hold
cover open.
Hinges Inspect for damage and loose or missing hardware.
Electrical connectors Inspect for damage and bent or broken pins.
Controls and indicators Inspect for damage.
Windows Inspect for breaks, cracks, or discoloration.
Ribbon cables Inspect for broken wire or strands, damaged insulation, pinched
wiring, and possible shorting conditions.
Circuit boards Inspect for breaks, warpage, and evidence of overheated
components. Some printer disassembly is required. See Chapter 6,
Replacement Procedures.
Fans and motors Inspect for obvious damage. Some printer disassembly is
required. See Chapter 6, Replacement Procedures.
Flywheel cam, Shuttle and
Counterweight cam followers After checking belt tension, inspect the cam and follower surfaces
for excessive wear or damage. If required, replace the parts as
described in Chapter 6, Replacement Procedures.