Samsung CLP-31 Series, Service Manual

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Alignment & Troubleshooting
Service Manual
4-1
Samsung Electronics
4. Alignment & Troubleshooting
4.1 Alignment and Adjustments
This chapter describes the main functions for service, such as the product maintenance method, the test
output related to maintenance and repair, Jam removing method, and so on.
It includes the contents of manual.
4.1.1. Control Panel
4.1.1.1 Overview
- The CLP-31x series printers do not have LCD panel which is used in other color model printers. On the
contrary to other models of color printers, they show the status of the printer only with their LEDs.
- The CLP-31x series printers have 1 keys and 6 LEDs. The ‘User Interface’ module handles the processing
of the ‘Key Press’ and ‘LED control’ at different states of the machine.
4.1.1.2 Architecture
KEY (1 key): Stop key
LED (6 LEDs):
4 LED for CMYK toners : toner-low(cyan, magenta, yellow, black) LEDs
2 LED for status : ready (green) or error(red) status LED (two color LED)
1 LED for JAM display (WiFi status display at wireless model)
4.1.1.3 Data and Control Flow
User interface (panel) is made up of
- KEY input detection & process
- LED control
The initial process to use the panel checks register’s values of key and LED.
If user input key value, the operation to be defined by key value is processed and the LED operation to be
defined by printer status is controlled.