Samsung CLP-350N - 4 Alignment & Troubleshooting; Alignment and Adjustments; Control Panel

Adjustment and Troubleshooting
Service Manual
4-1
Samsung Electronics
4
4
4. Adjustment and 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-350N printers do not have LCD panel which is used in other color model printers. On the con-
trary to other models of color printers, they show the status of the printer only with their LEDs.
- The CLP-350N printers have 1 keys and 5 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 (5 LEDs):
4 LED for CMYK toners : toner-low(cyan, magenta, yellow, black) LEDs
1 LED for status : ready (green) or error(red) status LED (two color LED)
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.