Printronix MVP Series user manual Corrective Maintenance, Action, Erratic or, Stalled Shuttle

Corrective Maintenance

When the printer malfunctions, you will have to determine whether a service call is necessary. In these instances, there are several measures you can take before making the call. Electronic, mechanical and system are three major areas that you can check, and possibly repair, when determining where and what the problem is.

Simple electronic problems can sometimes be repaired because the operator’s panel displays error codes that refer to specific corrective actions. To learn these error codes, refer to Appendix B for complete descriptions. Mechanical problems, however, are somewhat harder to diagnose. Therefore, check the following problem areas in Table 9–1. System problems can be detected by running the self–tests (see the “Self–Tests” section on page 9–10).

Table 9–1. Mechanical Problems

Problem Area	Corrective Action
Noisy Shuttle	Continue to use the printer until the printer is serviced (unless the
Action	print quality becomes unusable).
Erratic or	(1)	Make sure the transport restraining bolts are removed.
Stalled Shuttle	(2)	Remove any jammed paper and reload the paper.
	(3)	Make sure the ribbon is not folded or misfed. Replace it if
		necessary.
	(4)	Clean the printer thoroughly as explained on page 9–5.
	(5)	Call for service if the problem persists.

Paper Transport Feeds Improperly

Ribbon Transport Feeds Improperly

Poor Print Quality

(1)Remove any jammed paper and reload the paper.

(2)Run the Paper Motion Tests (06.1) see page 9–16.

(3)Call for service if the problem persists.

(1)Replace the ribbon if a) it is worn, torn or perforated, b) it does not run smoothly through the guides, or c) it does not reverse direction at both ends of its spool.

(2)Clean the printer thoroughly as explained on page 9–5.

(3)Call for service if the problem persists.

(1)Check that the Forms Adjustment Thickness Lever is at its appropriate setting.

(2)Replace the ribbon if a) it is worn, torn or perforated.

(3)Clean the printer thoroughly as explained on page 9–5.

(4)Replace the font PROM if the printer consistently misplaces dots.

(5)Broken or misaligned hammers require a service call.

Routine Service and Diagnostics 9–9