Epson AcuLaser C1900, Service Manual

Page: 32 / 270

EPSON AcuLaser C1900/AcuLaser C900 Revision B
Product Description Basic Specifications 32
1.2.4 Reliability and Maintainability
1.2.4.1 Reliability
†
MPBF/MTBF
„
Main unit: 35,000 pages or more / 3,000 hours or more *1
NOTE: *1: Monthly operating hours: Over 300 hours (average)
†
Paper Feed Reliability
*1
Note *1: Standard environment: 15 ~ 25
°
C, 35 ~ 70%RH
Defines the reliability of humidity-no adjusted paper of the plain paper (A4, Letter).
*2: Multiple-sheet feed rate does not include performance at the boundary between the
original paper and the replenished paper that occurs after replenishing paper.
*3: 1 C indicates 1 mm of crease at a corner.
†
Printing Start Position Accuracy
†
Skew
The table below shows specification values converted to dot-2 pattern reference.
Metric length
Table 1-14. Paper Feed Reliability
Simplex printing Duplex printing
Paper jam rate 1/2000 sheets or less 1/1000 sheets or less
Miss-feed 1/2000 sheets or less -
Multiple-sheet feed rate
*2
1/500 sheets or less -
Wrinkled paper 1/1000 sheets or less 1/500 sheets or less
Creased paper at the top edge
(for 1 c or more
*3 )
1/1000 sheets or less 1/500 sheets or less
Simplex
printing
Main scanning
direction
reference
position (c)
±
2.0mm
Sub scanning
direction
reference
position (a)
±
2.5mm
Duplex
printing
Main scanning
direction
reference
position (c)
±
3.0mm
Sub scanning
direction
reference
position (a)
±
2.5mm
Table 1-15. Skew
A4
Simplex
printing Main scanning direction (|c-d|)
Sub scanning direction (|a-b|) 2.12 mm
1.56 mm
Duplex
printing Main scanning direction (|c-d|)
Sub scanning direction (|a-b|) 3.19 mm
2.60 mm
Table 1-16. Skew
A4
Simplex
printing Main scanning direction (|c-d|)
Sub scanning direction (|a-b|) 195.58 mm
281.61 mm
Duplex
printing Main scanning direction (|c-d|)
Sub scanning direction (|a-b|) 195.58 mm
281.61 mm
Printing Area
Pa
per
Fee
d
Dire
ctio
n