Epson TM-U220 TM-U220 Technical Reference Guide - Page 82

Troubleshooting, Rev. H

Page 82 highlights

4.1.1.2 Recoverable Errors When a recoverable error occurs, after the cause of the error is removed, the printer can recover from the error by receiving an error recovery command without turning off the power: ERROR Description Paper roll cover open The roll paper cover is error (*1) opend when printing. ERROR LED Blinking Pattern 160 ms Autocutter error (Type A, B only) The autocutter does not work correctly Home position detection error (This is "Mechanical error") The home position cannot be detected due to a paper jam Recovery Recovers by error recovery command with the cover closed Recovers by error recovery command. (See "Autocutter Jam" (page 4-3)) Recovers by error recovery command Note: (*1) These conditions are selected by MSW 8-5 and 8-8. When MSW 8-5 (mapping of the cover open status) is OFF, the error does not occur and a "paper end error" occurs instead. If MSW 8-8 is ON, this error is handled as a recoverable error. 4.1.1.3 Errors that are impossible to recover: ERROR R/W error in memory or gate array High voltage error ERROR LED Blinking Pattern Description 160 ms After R/W checking, the printer does not work correctly. Writing to, reading out, or erasing the NV memory for image scanning results does not work correctly. The power supply voltage is extremely high Low voltage error The power supply voltage is extremely low CPU execution error The CPU executes an incorrect address or I/F board is not connected Print head There is an abnormality in temperature the print head detection circuit error temperature Recovery Impossible to recover Impossible to recover Impossible to recover Impossible to recover Impossible to recover 4-2 Troubleshooting Rev. H

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
  • 41
  • 42
  • 43
  • 44
  • 45
  • 46
  • 47
  • 48
  • 49
  • 50
  • 51
  • 52
  • 53
  • 54
  • 55
  • 56
  • 57
  • 58
  • 59
  • 60
  • 61
  • 62
  • 63
  • 64
  • 65
  • 66
  • 67
  • 68
  • 69
  • 70
  • 71
  • 72
  • 73
  • 74
  • 75
  • 76
  • 77
  • 78
  • 79
  • 80
  • 81
  • 82
  • 83
  • 84
  • 85
  • 86
  • 87
  • 88
  • 89
  • 90
  • 91
  • 92
  • 93
  • 94
  • 95
  • 96
  • 97
  • 98
  • 99
  • 100
  • 101
  • 102
  • 103
  • 104
  • 105
  • 106
  • 107
  • 108
  • 109
  • 110
  • 111
  • 112
  • 113
  • 114
  • 115
  • 116
  • 117
  • 118
  • 119
  • 120
  • 121
  • 122
  • 123
  • 124
  • 125
  • 126
  • 127
  • 128
  • 129
  • 130
  • 131
  • 132
  • 133
  • 134
  • 135
  • 136
  • 137
  • 138
  • 139
  • 140
  • 141
  • 142
  • 143
  • 144
  • 145
  • 146
  • 147
  • 148
  • 149
  • 150
  • 151
  • 152
  • 153
  • 154

4-2
Troubleshooting
Rev. H
4.1.1.2
Recoverable Errors
When a recoverable error occurs, after the cause of the error is removed, the printer
can recover from the error by receiving an error recovery command without turning off
the power:
Note:
(*1) These conditions are selected by MSW 8-5 and 8-8. When MSW 8-5 (mapping of the cover open
status) is OFF, the error does not occur and a “paper end error” occurs instead. If MSW 8-8 is ON, this
error is handled as a recoverable error.
4.1.1.3
Errors that are impossible to recover:
ERROR
Description
ERROR LED Blinking Pattern
Recovery
Paper roll cover open
error (*1)
The roll paper cover is
opend when printing.
Recovers by error recovery
command with the cover
closed
Autocutter error
(Type A, B only)
The autocutter does not
work correctly
Recovers by error recovery
command. (See “Autocutter
Jam” (page 4-3))
Home position
detection error
(This is “Mechanical
error“)
The home position cannot
be detected due to a
paper jam
Recovers by error recovery
command
ERROR
Description
ERROR LED Blinking Pattern
Recovery
R/W error in memory
or gate array
After R/W checking, the
printer does not work
correctly.
Writing to, reading out, or
erasing the NV memory for
image scanning results
does not work correctly.
Impossible to recover
High voltage error
The power supply voltage
is extremely high
Impossible to recover
Low voltage error
The power supply voltage
is extremely low
Impossible to recover
CPU execution error
The CPU executes an
incorrect address or I/F
board is not connected
Impossible to recover
Print head
temperature
detection circuit error
There is an abnormality in
the print head
temperature
Impossible to recover
160 ms
160 ms