Dram Test - Canon MF3110 - ImageCLASS Laser Multifunction Service Manual

Chapter 5 Running H/F 5

5.6.4.2 DRAM Test

5.6.4.2.1 D RAM Test
D RAM test menu is selected by pressing the numeric key 1 from the test mode menu. D RAM Test 1 writes data to
the entire D RAM region and reads it out to check that operations are correct. D RAM Test 2 just reads data at high
speed.
Operating
DRAM TEST 40960KB
.......
Error
Normal end
DRAM TEST 40960KB
complete (no error)
F-5-10
Before D RAM test, output all image data in image memory. When D RAM test is performed, all image data are
cleared.
5-16
40960KB: D-RAM total memory capacity (bytes)
: Indicates an address for which write testing is complete.
. : Indicates an address for which read testing is complete.
Error display
WRT=33CC RD=33EC
ADR=BF840201
Restart by pressing
Start button
(Normal end)
DRAM TEST 40960KB
complete (error)
WRT : data written
RD : data read
ADR : address
0007-6685