Crum Overview; Fw Upgrade - Samsung CLP-31 Series Service Manual

2.3.9 CRUM Overview

- Stands for "Customer Replaceable Unit Monitor"
- EEPROM, SAMSUNG CRUM is used for CRUM Memory.
- CRUM stores various information on consumables (including consumables' life).
- In CLP-31x Series, total four CRUM's are used
(four on toner cartridges)
CRUM stores the following information
• Model Name
• Supplier ID
• Serial Number
• Company ID
• MFG Date
• Capacity
• Page Count
- Toner Cartridge and Transfer Belt
- Indicates how many pages are printed by using the consumable
• Dot Count
- Toner Cartridge Only
- Indicates how many dots are printed by using the toner cartridge
• Image Count
• Model ID

2.3.10 FW Upgrade

• Via USB or Network (SWS/SWAS)
• You can upgrade F/W via USB or Network whenever the printer is "Ready"
• Make sure connecting Printer to the computer with a USB cable
• Via Using F/W Download Mode :
Step 1) Power on while pressing the STOP Key
Step 2) Press STOP Key more time and the status LED is on as Green.
Step 3) Download F/W via USB
Service Manual
Product spec and feature
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Samsung Electronics