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6-1
CHAPTER 6 MAINTENANCE
6.1 Overview
The DL9300/9400, with its simple mechanism, is highly reliable and easy to maintain. Components need very
little adjustment and are easy to replace.
6.2 Preventive Maintenance
No scheduled maintenance is required beyond keeping the printer clean, which helps ensure the service life and
MTBF.
6.3 Maintenance Philosophy
The printer is designed and built to minimize maintenance.
No periodic lubrication is required.
To ensure printing quality, the following are done at the plant:
• Every unit is checked and tested before assembly.
• All products go through a full final inspection.
6.4 Diagnostics
6.4.1 ROM/RAM checking
When power is turned on, ROM sum and RAM write/read are checked automatically.
6.4.2 Error display
Operating conditions are checked during printer operation and, when an error is detected, the error status is
displayed by flashing the PAPER OUT indicator.