Specifications

Chapter 7
PRINT QUALITY ADJUSTMENT PROCE-
DURES
7.1 Introduction
This chapter describes how to obtain print quality test patterns and use
them with print quality adjustment procedures to restore the best print
quality possible. The procedures in this chapter are to be performed
if print quality has degraded due to component wear and/or component
replacement.
7.2 Print Quality Test Patterns
The Sample Print Quality Test Patterns printout consists of the software
release number, model number, serial number, and date spaces, and
short segments of all the test patterns and the key number used to
access them. There are four test patterns, amplitude, horizontal timing,
vertical timing, and intermodule gap, and a checkerboard pattern that
is an overview of all the test patterns.
To obtain the Sample Print Quality Test Pattern:
1. With the printer in the Off-line mode (printer display is [ O F L]),
press the FCT (9) key and observe that the printer enters the MODE
SELECTION state (printer display changes to[Fnc]).
PRINT QUALITY ADJUSTMENT PROCEDURES 7–1