Brother HL-2037 User Manual

HL-2030/2040/2070N SERVICE MANUAL
Confidential
7-26
7. IMAGE DEFECTS
7.1 Image Defect Examples
I-2 Dark
I-1 Light I-2 Dark I-3 Completely blank
I-4 All black
I-5 Dirt on back of paper
I-6 Black vertical
streaks
I-6 Black vertical
streaks
I-7 Black horizontal
stripes
I-12 Poor fixing
I-13 Image distortion
I-14 Faint print
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I-19 Hollow print
I-15 White spots
I-16 Black spots
I-18 Gray background
I-17 Black band
I-20 Downward fogging
of solid black
I-21 Horizontal lines
I-11 Faulty
registration
I-10 White horizontal
streaks
I-8 Black vertical
streaks
I-9 White vertical
streaks
I-23 Ghost
I-22 Light rain
I-24 Toner specks
Fig. 7-12
7.2 Diameter of Rollers
The diameter of each roller and the pitch which appears in the image are listed below.
No. Parts Name Diameter (The pitch which
appears in the image)
1 Paper Feed Roller
Ø 14.0 mm (44.0 mm)
2 Transfer Roller
Ø 12.1 mm (37.9 mm)
3 Exposure Drum
Ø 24.0 mm (75.3 mm)
4 Heat Roller
Ø 25.0 mm (78.5 mm)
5 Pressure Roller
Ø 25.0 mm (78.5 mm)
6 Developer Roller
Ø 20.0 mm (62.8 mm)

Brother HL-2037 Specifications

General

Brand	Brother
Model	HL-2037
Category	Printer
Language	English