Maintenance And Adjustments; Figure - Boca Systems Micro Plus User Manual

8.0 Maintenance and Adjustments

Your ticket printer is solidly constructed and has been designed for high volume use. It
requires minimal care to provide maximum service.
This section provides an overview of printer maintenance, including parts alignments,
adjustment and replacement.
For discussion purposes, the printer consists of two major modules or assemblies:
• Paper guide and print head assembly
• Logic board assembly
As a safety precaution, all service to the printer should be done with power off
and the AC cord unplugged from the printer.
8.1 Paper Guide and Print Head Assembly
The principal function of this assembly is to guide the ticket stock to the thermal print
head where thermal printing takes place. Additionally, this assembly houses the drive
platen and optical detectors. If necessary, the total assembly can be removed from the
unit if necessary, however, all replacements and adjustments of the components of this
assembly can be done without removing the total assembly.
The most common adjustments and replacements regarding this assembly follows:
8.1.5 Optical Devices (see figure 8)
There are two identical opto devices mounted on a black aluminum bracket beneath
the paper guide. The opto on the left controls automatic ticket loading and the opto on
the right controls tear position. Removal or adjustment of either opto should be
done without removing the bracket from the paper guide.
The opto position is factory set and adjustment should not be necessary
.
Caution: Before making any opto adjustments make sure your ticket stock was
manufactured to proper specifications.
The ticket load opto should be positioned such that the printer automatically activates
the stepper motor at the proper time when tickets are loaded into the printer. When
loading tickets, the stepper motor should turn on when the ticket stops in front of the
thermal head. At this point, the ticket will be grabbed out of your hand and fed into the
printer. If the motor does not activate, make sure the ticket stock is loaded into the
printer properly. If stock is loaded in properly then re-adjust the opto position to the
right (1/16" increments) until the desired position is reached. If the motor activates too
soon, slide the opto torards the left.
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