Epson L120, Service Manual

Page: 21 / 59

Confidential
Disassembly/Reassembly Overview 21
L120 Revision A
2.1.4 Standard Operation Time for Servicing the Product
The following are the standard operation time for servicing the product. Those are based on the MTTR result
measured using a prototype.
The underlined parts/units are supplied as After Service Parts.
Table 2-1. Standard Operation Time
Parts/Unit
Time (mm:ss)
Replacement
Adjustment/
inspection
Total
Ink Supply Tank Upper Housing 0:35 --- 0:35
Paper Support Assy 0:02 --- 0:02
Printer Cover 0:09 --- 0:09
Waste Ink Pad Assy 0:44 0:65 1:49
Paper Back Lever 1:46 --- 1:46
Retard Roller Assy 1:53 0:47 2:40
Ink Supply Tank Assy 1:03 --- 1:03
Ink Supply Tank 0:51 --- 0:51
Ink Supply Tank Tube Assy 1:31 --- 1:31
Ink Supply Tank Lower Housing 2:35 --- 2:35
Housing Upper Assy 1:56 --- 1:56
Housing Upper 2:05 --- 2:05
Buttons 2:22 --- 2:22
PS Unit 2:16 --- 2:16
Cap Assy 3:12 --- 3:12
Porous Pad for Cap Assy 3:18 --- 3:18
PF Encoder Sensor 2:35 --- 2:35
PF Scale 2:48 --- 2:48
PF Grounding Spring 2:54 --- 2:54
PF Driven Pulley Assy 3:40 1:10 4:50
PF Timing Belt 3:58 1:10 5:08
FFC Holder 2:10 --- 2:10
EJ Roller Gear 2:23 --- 2:23
CR Scale 2:45 --- 2:45
Hopper 2:41 5:03 7:44
Shield Plate 3:31 --- 3:31
LD Roller Assy 4:11 0:47 4:58
CR Motor 6:07 --- 6:07
PE Sensor Lever 5:02 0:47 5:49
Main Board Assy
EEPROM Data Copy OK 4:12 1:10 5:22
EEPROM Data Copy NG 4:12 27:58 32:10
LD Roller Cover 2:44 --- 2:44
Transistor Cover 3:28 --- 3:28
CR Driven Pulley Assy 3:19 3:07 6:26
Main Frame Assy 10:21 --- 10:21
Paper Guide Upper Assy 10:04 7:21 17:25
Head FFC 10:21 --- 10:21