![Canon imageCLASS X LBP1238 Service Manual Download Page 206](http://html1.mh-extra.com/html/canon/imageclass-x-lbp1238/imageclass-x-lbp1238_service-manual_3056623206.webp)
TESTMODE (Service mode for test print, operation check, etc.) > PRINT (Print test mode)
THRU
Setting of image correction table at test print
Detail
To set the image correction table that is used at the time of test print output.
When 0 is set, normal gamma LUT is used so that the density characteristics by the density
correction process can be checked.
When 1 is set, linear gamma LUT is used so that the density characteristics of this machine can
be checked.
Use Case
At trouble analysis
Adj/Set/Operate Method
Enter the setting value, and then press Apply key.
Display/Adj/Set Range
0 to 1
0: Normal gamma LUT
1: Through (linear) gamma LUT
Default Value
0
Supplement/Memo
Gamma LUT: Density gradation characteristic table
DENS
Adjustment of test print engine F value
Detail
To adjust the test print engine F value.
The larger the value, the darker the image becomes.
Use Case
At problem analysis
Adj/Set/Operate Method
Enter the setting value (switch negative/positive by +/- key), and then press Apply key.
Display/Adj/Set Range
-4 to 4
Default Value
0
Supplement/Memo
F value: Used as an index to indicate lens brightness.
MABK
Setting of toner thinning process
Detail
To set toner thinning process.
The larger the value, the greater the toner thinning amount at test print becomes.
Use Case
When color displacement occurs during test print
Adj/Set/Operate Method
Enter the setting value, and then press Apply key.
Display/Adj/Set Range
0 to 4
0: OFF
1: Mode 1
2: Mode 2
3: Mode 3
4: Mode 4
Default Value
0
FEED
Setting of paper source at test print
Detail
To set the paper source at the time of test print output.
If this mode is set when there is no Cassette 2 (option Pickup Cassette), the output is made from
Cassette 1 (standard Pickup Cassette).
Use Case
At trouble analysis
Adj/Set/Operate Method
Enter the setting value, and then press Apply key.
Caution
In case of using the Multi-purpose Tray, be sure to place paper on the tray before executing this
item.
Display/Adj/Set Range
0 to 4
0: Multi-purpose Tray
1: Cassette 1
2: Cassette 2
3: Cassette 3
4: Cassette 4
Default Value
1
9. Service Mode
196
Summary of Contents for imageCLASS X LBP1238
Page 11: ...Safety Precautions Laser 2 Power Supply Lithium Battery 2 Toner Safety 3 Notes on works 3...
Page 15: ...Product Overview 1 Product Lineup 6 Features 8 Specifications 9 Parts Name 12...
Page 78: ...Periodical Service 4 Periodically Replaced Parts 69 Consumable Parts 70 Periodical Services 71...
Page 80: ...Consumable Parts This machine does not have any consumable parts 4 Periodical Service 70...
Page 96: ...1 2 1x 3 100 mm 5 Parts Replacement and Cleaning 86...
Page 105: ...2 3x 1x 3 3x 4 1x 2x 5 Parts Replacement and Cleaning 95...
Page 106: ...5 3x 6 7 3x 5 Parts Replacement and Cleaning 96...
Page 109: ...3 2x 4 5 2x 1x 5 Parts Replacement and Cleaning 99...
Page 110: ...6 7 8 2x 1x 2x 5 Parts Replacement and Cleaning 100...
Page 122: ...Procedure 1 1x 9x 4x 1x 5 Parts Replacement and Cleaning 112...
Page 134: ...3 4 5 2x 6 5 Parts Replacement and Cleaning 124...
Page 136: ...Adjustment 6 Actions at Parts Replacement 127...
Page 153: ...Error Jam Alarm 8 Overview 144 Error Code 148 Jam Code 154 Alarm Code 156...