EPSON AcuLaser C1900/AcuLaser C900 Revision B
Product Description Basic Specifications 28
Envelope Orientation
Note *: JIS envelope.
NOTE 1:
Envelopes must be loaded facing the printing side up with the flaps heading 
forward or backward to the paper feed direction.
2:
Opened flaps must be closed.
3:
Printing on the backside (where a flap seal is being sealed) is not possible.
4:
Only envelopes without adhesive or adhesive tapes can be used.
 Paper Sizes for Feeding
Regular paper sizes or user defined paper sizes within applicable paper sizes below.
 Main unit
Paper width: 92.00 mm ~ 216.00 mm
Paper length: 148.00 mm
*1
 ~ 356.00 mm
Paper thickness: 60 g/m
2
 ~ 163 g/m
2
 (190 g/m
2
: Japanese official postcard)
Note *1: 148.00 mm ~ 356.00 mm in low-speed <2> mode only and 
210.00 mm ~ 356.00 mm in standard mode
 Duplex print unit
Paper size: A4, Letter
Paper thickness: 60 g/m
2
 ~ 90 g/m
2
NOTE:
Only regular sizes are supported, while user defined paper size 
cannot be used.
 Optional 500-sheet cassette unit
Paper size: Fixed on A4 or Letter
Paper thickness: 60 g/m
2
 ~ 90 g/m
2
 Output Paper Capacity
Face-down (FD) tray only 200 sheets
 Dimensions and Weights
Note *1: This value includes the height of the right-side paper path.
*2: This value includes the weight of the consumables, controller circuit board and 
operation panel.
Note : Dimensions have a tolerance of ±5mm and weights have a tolerance of ±0.5kg.
 Consumables
 Developer cartridge (Black, Cyan, Yellow, Magenta)
 Photoconductor unit
 Transfer belt unit
 Waste toner collector
 Regular Replacement Parts
 Fuser unit
 Second transfer roll
 Power Supply
100 V 
± 10%  : 50Hz
±3Hz
 / 60 Hz
±3Hz
120 V ± 10%  : 50Hz
±3Hz
 / 60 Hz
±3Hz
220 ~ 240 V ± 10%  : 50Hz
±3Hz
 / 60 Hz
±3Hz
Feeding 
direction
→
Envelope types
MONARCH, DL Com-#10, C6 
Yokei #0
*
, Yokei #4
*
 Yokei #6 
*
C5
Table 1-8.  Outline Dimensions and Weight
Paper source Width Depth Height Weight
Stand-alone
Main unit 429 mm 521 mm 406 mm 29 kg 
*2
Optional cassette unit 380 mm 485 mm 178 mm 5.3 kg
Duplex print unit 96 mm 340 mm 330 mm 2.0 kg
Options 
Installed
Main unit+ 
Optional cassette unit
469 mm 521 mm 526 mm 34.3 kg
Main unit + Duplex print unit 473 mm 521 mm 406 mm 31.0 kg