Lexmark T640 - Installing and Removing Options; Installing Input Options and Drawers

General information 1-5
4061-xx0
Memory configuration
Depending upon the options and features used, additional memory may be required to optimize performance.
Available memory options
Optional 128MB, 256MB, and 512MB SDRAM DIMMs are available from Lexmark. The memory options are
168-pin synchronous DRAM DIMMs.
Flash memory options include 32MB and 64MB.
Operating clearances
Memory type
Models
Lexmark T640 Lexmark T640n Lexmark T642 Lexmark T642n Lexmark T644 Lexmark T644n
Standard DRAM (MB) 64 64 64 128 128 128
Optional memory (MB)
(100 pin DDR SDRAM unbuffered
DIMMs)
128, 256, and 512MB available
Maximum (MB) 576 576 576 640 640 640
Optional flash memory 32 and 64 MB available
Note: One firmware card and one flash memory card are supported. Either slot supports both card types.
Printer side Measurement
Left and right side 12 in. (30.48 cm)
Front 20 in. (50.8 cm)
Rear 12 in. (30.48 cm)
Top* 54 in. (137.16 cm)
* Allow clearance above the printer front door clearance and for adding
options, such as additional input drawers, output expander, high-capacity
output stacker, or StapleSmart finisher.