Inspecting The Printer - Printronix P9012 Maintenance Manual

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.
Item(s) to Inspect
Cabinet, base, frame
Attaching hardware
Nameplates
Printer cover, cabinet door(s),
damper/struts
Hinges
Electrical connectors
Controls and indicators
Windows
Ribbon cables
Circuit boards
Fans and motors
Flywheel cam, Shuttle and
Counterweight cam followers
Scheduled Maintenance
Table 3–2. Physical Inspection
Check for damage, cracks, breaks, dents, gouges, scratches,
warpage, rust, corrosion, and proper finish.
Inspect fasteners for thread damage, rust, or corrosion.
Inspect for legibility and damage.
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.
Inspect for damage and loose or missing hardware.
Inspect for damage and bent or broken pins.
Inspect for damage.
Inspect for breaks, cracks, or discoloration.
Inspect for broken wire or strands, damaged insulation, pinched
wiring, and possible shorting conditions.
Inspect for breaks, warpage, and evidence of overheated
components. Some printer disassembly is required. See Chapter 6,
Replacement Procedures.
Inspect for obvious damage. Some printer disassembly is
required. See Chapter 6, Replacement Procedures.
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.
Procedure
3–3