Canon Laser Class 810, Service Manual

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Chapter 16
16-40
16.16 Test Mode (TEST)
16.16.1 Overview
16.16.1.1 Outline
0017-7803
Test mode must be executed by keeping track the flow of menu items appearing on the LCD. Menu items in test mode are organized into seven blocks as described
below. Numerals enclosed in parentheses denote a numeric keypad key to be pressed each.
1. D-RAM test ((1) D-RAM)
Checks to see if data can be correctly written to and read from D-RAM.
2. Scan test ((2) SCAN TEST)
Used to adjust contact sensor output and the position at which a document fed from the ADF is scanned.
3. Print test ((3) PRINT TEST)
Used to generate service test patterns.
4. Modem test ((4) MODEM TEST)
Performs relay actuation, modem DTMF and tonal signal transmission/reception tests.
5. Aging test ((5) AGING TEST)
Not used.
6. Function test ((6) FUNCTION TEST)
Used to verify the operations of microswitches, sensors, speakers and ADF functions.
7. Roller cleaning mode ((0) ROLLER CLEAN)
Used to clean the delivery roller or ADF pickup roller by idling them.
16.16.1.2 Test Mode Menu List
0017-7804
Test mode menu list
To invoke test mode, follow these steps:
1) Enter service mode.
Press the operation panel user mode key, 2 key, 8 key and user mode key in this order.
2) Press the operation panel arrow keys to show "TEST MODE."
3) Press the OK key.
To exit test mode, press the user mode key to return to standby mode.
T-16-25
Numerals enclosed in parentheses denote a numeric keypad key to be pressed each.
Group
Subgroup Item 1 Item 2 Item 3 Explanation
TEST MODE [1] - [9], [#]
(1) DRAM [1] - [2]
D-RAM data check
(1) DRAM TEST Write/read check
(2) DRAM TEST Read check
(2) SCAN TEST [1] - [8]
(1) SHADING Automatic gain adjustment
(4) TRASH DETECT Dust detection (CIS shift type only)
(2), (3), (5), (6), (9), (*) Not used
(3) PRINT TEST [1] - [9]
(1) Not used
(2) All-black output
(3) Not used
(4) Back belt output
(5), (6), (7), (8), (9), (*) Not used
(4) MODEM TEST [1] - [9]