Lexmark C720 Color Laser Printer 5024-001
Extracted From Service Manual

5024-001

Edition: December 2002 The following paragraph does not apply to any country where such provisions are inconsistent with local law: LEXMARK INTERNATIONAL, INC. PROVIDES THIS PUBLICATION AS IS WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Some states do not allow disclaimer of express or implied warranties in certain transactions; therefore, this statement may not apply to you. This publication could include technical inaccuracies or typographical errors. Changes are periodically made to the information herein; these changes will be incorporated in later editions. Improvements or changes in the products or the programs described may be made at any time. Comments may be addressed to Lexmark International, Inc., Department D22A/032-2, 740 West New Circle Road, Lexington, Kentucky 40550, U.S.A or e-mail at ServiceInfoAndTraining@Lexmark.com. Lexmark may use or distribute any of the information you supply in any way it believes appropriate without incurring any obligation to you. You can purchase additional copies of publications related to this product by calling 1-800-553-9727. In other countries, contact your point of purchase. Lexmark, Lexmark with diamond design, MarkNet, and MarkVision are trademarks of Lexmark International, Inc., registered in the United States and/or other countries. PCL is a registered trademark of the Hewlett-Packard Company. PostScript is a registered trademark of Adobe Systems Incorporated. Other trademarks are the property of their respective owners. Copyright Lexmark International, Inc. 2001, 2002. All rights reserved. UNITED STATES GOVERNMENT RESTRICTED RIGHTS This software and documentation are provided with RESTRICTED RIGHTS. Use, duplication or disclosure by the Government is subject to restrictions as set forth in subparagraph (c)(1)(ii) of the Rights in Technical Data and Computer Software clause at DFARS 252.227-7013 and in applicable FAR provisions: Lexmark International, Inc., Lexington, KY 40550.

U.S.A. P/N: 12G3667

7. Parts Catalog
How to Use this Parts Catalog
SIMILAR ASSEMBLIES: If two assemblies contain a majority of
identical parts, they are shown on the same list. Common parts are shown by one index number. Parts peculiar to one or the other of the assemblies are listed separately and identified by description. AR: (As Required) in the Units column indicates that the quantity is not the same for all machines. NP: (Non-Procurable) in the Units column indicates that the part is non-procurable and that the individual parts or the next higher assembly should be ordered. NR: (Not Recommended) in the Units column indicates that the part is procurable but not recommended for field replacement, and that the next higher assembly should be ordered. R: (Restricted) in the Units column indicates that the part has a restricted availability. NS: (Not Shown) in the Ref column indicates that the part is procurable but is not pictured in the illustration. PP: (Parts Packet) in the Description column indicates that the part is contained in a parts packet. A part reference within a circle indicates an assembly or a billof-material. An assembly is complete. A bill-of-material contains unassembled parts. NA: Not available/not referenced.

Parts Catalog 7-1

Assembly 1:

Parts Catalog

Ref 1-16 12G7004 12G7005 12G7006 12G7007 12G7008 Part Number Units 1 Description Toner Cartridge -Y (Supply, customer order only) Toner Cartridge -M (Supply, customer order only) Toner Cartridge -C (Supply, customer order only) Toner Cartridge -K (Supply, customer order only) OPC Belt Cartridge (Supply, customer order only) Fuser Oil Bottle (Supply, customer order only) Fuser Cleaner (Supply, customer order only) Waste Toner-P (Supply, customer order only) Fusing Unit (110V) (Supply, customer order only) Fusing Unit (220V) (Supply, customer order only) Transfer Roller Paper Discharger Drum Cleaner Ozone Filter Power Cord (U.S.) Power Cord, LV U.S., APG, Bolivia, Canada, Columbia, Costa Rica, Ecuador, EL Salvador, Guatemala, Honduras, Mexico, Nicaragua, Panama, Peru, Venezuela Power Cord, HV, Argentina

1339517

1339518

Parts Catalog 7-3

Assembly 1 (cont.):
Ref 1 - 16 Part Number 1339528 Units 1 Description Power Cord, HV, Brazil Power Cord, HV, Chili Power Cord, HV, UK, Ireland Power Cord, HV, Austria, Belgium, EURO English, Finland, France, Germany, Greece, Netherlands, Norway, Poland, Portugal, Russia, Slovakia/Czech/Hungary Spain, Sweden, Turkey Power Cord, HV, Israel Power Cord, HV, Switzerland French, Switzerland German, Switzerland Italian Power Cord, HV, South Africa Power Cord, HV, Italy Power Cord, HV, Denmark Paper Cassette Paper Cassette (250 sheet legal) Cleaner Cover Transfer Unit Cover Transfer Unit (includes 12, 13, 20, 23, 25) PT1 Sensor Lever Paper Cassette Paper Stop Registration Roller Assembly Parts Packet, Screws Parts Packet, Cable Clamps, Retainers, Miscellaneous

1339529

1339534 12G7010 12G7232 12G7011 12G7012 12G7013 12G7014 12G7159 12G7160 12G7341 12G7340
Note: Reference the foldout wiring diagram, in the back of this manual, for cable replacement detailed information. Then go to Assembly 6 for parts ordering information. Parts Catalog 7-5

Assembly 2:

Ref 2-Part Number 12G7015 12G7016 12G7017 12G7018 12G7019 12G7020 12G7021 12G7022 12G7023 12G7024 12G7025 12G7026 12G7027 12G7028 12G7029 12G7030 12G7031 12G7032 12G7033 12G7034 12G7035 12G7036 12G7037 12G7038 Units Description Top Cover Assembly (includes 35) Side Cover (R) Side Cover (L) Upper Side Cover (L) Front Cover Paper Exit Unit Cover (includes 13) Paper Exit Front Cover Base Cover (R) Base Cover (L) Rear Cover Rear Cover (U) Side F Cover (L) Paper Exit Upper Cover Rear Cover (U) Cap Front Cover Unit (includes 5, 45, 47) Main Engine (MCTL P.W.B.) Board High Voltage Unit Discharge Brush Cooling Fan (HFAN) Paper Exit Filter (with Case) Ozone Filter Cover Paper Sensor (PT2) Paper Sensor (FCL) Paper Exit Unit (includes 6, 7, 13, 20, 21, 22, 24, 25, 27, 28, 30, 31, 40, 42)

Parts Catalog 7-7

Assembly 2 (cont.):
Ref 2 - 47 47A Part Number 12G7039 12G7037 12G7360 12G7041 12G7042 12G7043 12G7044 12G7161 12G7162 12G7163 12G7164 12G7165 12G7166 12G7167 12G7168 12G7169 12G7170 12G7171 12G7172 12G7173 12G7174 12G7036 12G7175 12G7176 Units Description Paper Exit Roller Paper sensor (PFUL) Operator Panel Assembly Paper Exit Gear Z19 FCS Cover Assembly Paper Size Sensor BC Terminal 2 Control Panel Base Paper Exit Button Shield Cover B Shield Cover A Shield Case Assembly BC Lock Lever (set) Paper Exit Switch Guide Paper Exit Frame Assembly (includes 7,10,24,25,27,28,30,31,40,42) Paper Exit Idle Roller Set Paper Exit Harness Cover IOD Harness Guide Front Cover Latch Front Cover/Door Arm Assembly DE Solenoid Assembly (also order 47A) Cam Sensor, DE Solenoid GPH1, GPH2 Front Paper Cassette Guide (L) Front Paper Cassette Guide (R)

Parts Catalog 7-9

Ref 2 - 54 Part Number 12G7177 12G7178 12G7179 12G7180 12G7070 12G7341 12G7340 Units 1 Description DC Guide L DC Guide (R) Waste Toner U Spring TR Terminal Base Assembly Interlock Switch Parts Packet, Screws Parts Packet, Cable Clamps, Retainers, Miscellaneous
Note: Reference the foldout wiring diagram, in the back of this manual, for cable replacement detailed information. Then go to Assembly 6 for parts ordering information.

Parts Catalog 7-11

Assembly 3:
Ref 3-Part Number 12G7045 12G7046 12G7047 12G7048 12G7049 12G7049 12G7051 12G7052 12G7053 12G7054 12G7055 12G7056 12G7057 12G7058 12G7059 12G7060 12G7061 12G7062 12G7063 12G7064 12G7065 12G7037 12G7067 12G7068 Units Description Paper Feeding Clutch (PCLU) Registration Clutch (RECL) Fuser Clutch (FUCL) Developer Clutch Transfer Cam Clutch (TRCM) Cleaner Cam Clutch (FBCM) Cleaner Clutch (FBCL) Main Motor (MM) BD Gear Assembly Main Gear Unit (includes 2, 3, 5, 6, 7) Developer Motor (DM) Developer Drive Unit (includes 4) Developer Drive Gear (Set) FP2 Gear Assembly (Front Developer Solenoid Drive) Waste Toner Feeder (Lower) Cooling Fan (OZFAN) Toner Sensor (TPD, TTR) Toner Key Sensor (TNK) Waste Toner Holder Assembly IOD1 P.W.B. Transfer Drum Paper Sensor (Drum Encoder) (HPSEN) Power Supply Unit (U.S.) 110 V(LVPS) Power Supply Unit (WT) 220 V (LVPS)

Parts Catalog 7-13

Assembly 3 (cont.):
Ref 3 - 57 Part Number 12G7069 12G7070 12G7073 12G7074 12G7075 12G7076 12G7077 12G7078 12G7079 12G7079 12G7081 12G7082 12G7083 12G7084 12G7181 12G7182 12G7183 12G7184 12G7185 12G7341 12G7340 Units 1 Description Fuser Connector Interlock Switch, Front Door IOD2 P.W.B. Cooling Fan (CTFAN) Waste Toner Feeder Unit (Upper) Erase Lamp Erase Holder (2 pieces) Oil Sensor Belt Sensor (PBS) Drum Jam Sensor (DPJ) Paper Guide D (2 pieces) Optical Unit (Printhead) SW Button Cover (FR) SW Base Front Inner Cover C Oil Sensor Cover Shield Upper PS Fan Assembly (CTFAN) (includes 26, 28) Parts Packet, Screws Parts Packet, Cable Clamps, Retainers, Miscellaneous

Parts Catalog 7-15

Assembly 4:
Ref 4-Part Number 12G7098 12G7099 12G7100 12G7037 12G7037 12G7103 12G7104 12G7186 12G7187 12G7188 12G7341 12G7340 Units Description Paper Feed Roller Separator Pad OHP Sensor Paper Sensor (PEU) Paper Sensor (PT1) Paper Guide (UL) Assembly Paper Guide (UR) Transfer Unit Rear Band Transfer Unit Hinge Support Bracket Paper Guide L Parts Packet, Screws Parts Packet, Cable Clamps, Retainers, Miscellaneous

Parts Catalog 7-17

Assembly 5: Controller RIP Card

7-18 Service Manual

Ref 5-Part Number 12G7226 12G7227 12G7228 99A1752 99A1755 12G7229 12G7231 99A0459 11G0962 12G7230 Units Description Controller RIP Card Network Controller RIP Card SIMM Code 4MB SDRAM DIMM 32MB SDRAM DIMM Riser Card Assembly Hard Disk Mounting Bracket Hard Disk Hard Disk Cable Bracket, Controller RIP Card
Note: The standard and network models have listed memory. See Assembly 7 for part number information.

Parts Catalog 7-19

Assembly 6: Printer Cable Harness Sets

7-20 Service Manual

Ref 6-13 Part Number 12G7342 12G7343 12G7344 12G7345 12G7346 12G7347 12G7348 12G7349 12G7350 12G7351 12G7352 12G7353 12G7354 Units 1 Description Harness WH (A) Wiring Diagram #1 Harness WH (B) Wiring Diagram #2 Harness WH (C) Wiring Diagram #3 Harness WH (D) Wiring Diagram #4 Harness WH (I1/SEN) Wiring Diagram #5 Harness WH (LPC) Wiring Diagram #6 Harness WH (SIZE) Wiring Diagram #7 Harness WH (I1/TO) Wiring Diagram #8 Harness WH (PEX) Wiring Diagram #9 Harness WH (LXPN) Wiring Diagram #10 Harness WH (I2/FD) Wiring Diagram #11 Harness WH (DUAL) Wiring Diagram #12 Harness WH (MC/I1) Wiring Diagram #13
Note: Reference the foldout wiring diagram, in the back of this manual, for cable replacement detailed information.

Parts Catalog 7-21

Assembly 7: Miscellaneous

(No illustration)

7-22 Service Manual
Ref NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS Part Number 12G1704 13A0297 13A0296 99A0459 99A0545 12G1696 12G1697 99A1830 99A1752 99A1753 99A1754 99A1755 99A1756 99A1773 99A1757 99A1758 99A1759 99A1774 99A0560 99A0923 99A0467 Units 1 Description Card Assembly, SIMM IPDS/SCS/TNE Cable, Coax Cable, Twinax Hard Disk, 2.1GB Adapter, Serial MarkNet N2000t 4/16 Token Ring MarkNet N2002e 10Base2/10BaseT MarkNet N2001e 10/100 Ethernet 4MB SDRAM DIMM 8MB SDRAM DIMM 16MB SDRAM DIMM 32MB SDRAM DIMM 64MB SDRAM DIMM 128MB SDRAM DIMM 2MB Flash DIMM 4MB Flash DIMM 8MB Flash DIMM 16MB Flash DIMM Tri-Port Adapter (Serial/LocalTalk and Infrared) Board, USB/Parallel Port Board, Parallel Port Adapter Relocation Packaging - Base Printer - Lower Feed Unit - Duplex Unit - Base Printer / Duplex bundle

Parts Catalog 7-23

Assembly 8: Lower Feed Unit

7-24 Service Manual

Ref 8--23 Part Number 12G7037 12G7043 12G7045 12G7098 12G7099 12G7121 12G7122 12G7123 12G7124 12G7144 12G7224 12G7145 12G7146 12G7147 12G7148 12G7149 12G7150 12G7151 12G7152 12G7153 12G7154 12G7155 12G7156 12G7135 Units Description Paper Sensor (PEL) Paper Size Sensor (PSL) Paper Feed Clutch (PKCL) Paper Feed Roller Separator Pad (2) LF Side Cover R LF Side Cover L LF Clutch Drive, Transport Roller (DPKCL) LF Rear Cover Assembly (includes Transport Roll) Drive Gear Assembly LF Paper Feed Cassette LF Base Cover (R) Assembly LF Base Cover (L) LF Top Cover (R) LF Top Cover (L) LF Front Top Cover LF Cassette Guide (R) LF Cassette Guide (L) LF Paper Guide (UR) LF Paper Guide (UL) LF Rear Top Cover GND Contacts Cable Harness LFU / Duplex Parts Packet, Screws

Parts Catalog 7-25

Assembly 8 (cont.): Lower Feed Unit (cont.)

7-26 Service Manual

Ref Part Number 12G7135 12G7136 12G7137 12G7139 Units Description LFU / Duplex Parts Packet, Screws LFU / Duplex Parts Packet, Retainers LFU / Duplex Parts Packet, Cable Tie / Guides LFU / Duplex Parts Packet, Springs
Note: Reference the foldout wiring diagram, in the back of this manual, for cable replacement detailed information. Then go to the assembly for parts ordering information.

Parts Catalog 7-27

Assembly 9: Duplex Unit

7-28 Service Manual

Ref 9-22 Part Number 12G7105 12G7106 12G7107 12G7108 12G7109 12G7110 12G7111 12G7112 12G7113 12G7114 12G7115 12G7116 12G7138 12G7117 12G7140 12G7141 12G7070 12G7143 12G7125 12G7118 12G7119 Units 1 Description Cover Top (C) Assembly Cover Top (L) Cover Top (R) Cover Top (B) Assembly Cover Low (L) Cover Low (R) Cover Low (B) Assembly Paper Guide Bottom Assembly (includes 19, 25, 28) Paper Guide RVS Assembly (includes 20, 29) Paper Guide Inner Motor 1(DPM1) Motor 2 (DPM2) 4 Cable Bill of Material (Door, P.W.B.P.W.B.,I/F, Solenoid, PT4 P.W.B., Fan) Relay P.W.B. Solenoid (U) Assembly Solenoid (L) Assembly Interlock Switch (DSW1 - DSW4) D Sensor (PT4) D Sensor (PT5) Paper Guide U Assembly (includes printer reference 26) DUP P.W.B.

Parts Catalog 7-29

Assembly 9 (cont.): Duplex Unit (cont.)

7-30 Service Manual

Ref 9 - 36 Part Number 12G7120 12G7139 12G7126 12G7127 12G7128 12G7129 12G7130 12G7131 12G7132 12G7133 12G7134 12G7136 12G7138 12G7135 12G7136 12G7137 12G7139 Units 1 Description Cover Bottom Spring (contains 2 springs) D Roller (contains 20 rollers) 3 Belts Lid-WH Bottom D Sensor Bottom Bill of Material D Sensor Middle Bill of Material D Gear Cover Gate Bottom Band-Spring Set 3 Gears-Belt Set LFU / Duplex Screw Parts Pack Fan Motor (DFAN) LFU / Duplex Parts Packet, Screws LFU / Duplex Parts Packet, Retainers LFU / Duplex Parts Packet, Cable Tie / Guides LFU / Duplex Parts Packet, Springs

Parts Catalog 7-31

PostScript Emulation..4-1
Selecting PostScript Emulation... 4-1 Using SmartSwitch.... 4-1 Using the Operator Panel or MarkVision Professional.. 4-1 Using Your Software Application... 4-2 Page Formatting... 4-3 Printable Areas... 4-3 Logical Page Size... 4-4 PostScript Emulation Fonts for the Lexmark C720.. 4-11 PostScript Emulation Fonts for the Lexmark T420.. 4-14 PostScript Emulation Fonts for the Lexmark W812... 4-16 Supplemental Operators.... 4-19 Command Format... 4-19 Paper Size Support... 4-20 Paper Tray Support... 4-24 Envelope Size Support... 4-28 Envelope Tray Support... 4-30 Supplemental Operator Summary.. 4-32 Page Device Parameters... 4-67 Interpreter Parameters... 4-80 User Parameters... 4-80 System Parameters... 4-83 Device Parameters... 4-89 Status and Error Messages... 4-111 Tagged Binary Not Active.. 4-111 Tagged Binary Active... 4-112 Status Messages... 4-112 Unsolicited Messages... 4-114

Switching Languages..5-1

SmartSwitch.... Setting SmartSwitch for Different Interfaces.. Printer Job Language... Sniffing.... 5-1 5-2 5-2 5-3
Flash Memory and Disk...6-1
Resource Data Collection (Download Target)... 6-2 Storing Resources on Flash Memory or Disk.. 6-3 Viewing the Contents of Flash Memory and Disk... 6-3 Password Protection... 6-7 Rewriting the Flash Content... 6-8 Accessing Files with PostScript Emulation... 6-9 File Naming Conventions.... 6-9 Device Search Order.... 6-12 Performance.... 6-13 Job Buffering.... 6-13 Creating a Partition... 6-14 Enabling Job Buffering... 6-14 Disabling Job Buffering... 6-15 Recovering from a Power Loss... 6-15
Printer Specifications..7-1
Airflow Requirement... 7-1 Noise Emission Levels... 7-1 Electrical Specifications... 7-2 Power Requirements... 7-3 Physical Specifications... 7-5 Clearance Requirements... 7-6 Environmental Conditions... 7-8 Altitude Specifications.... 7-9 Atmospheric Pressure.... 7-9 Power On to Ready State Time Period.. 7-9 Time to Print the First Page... 7-10

Printer Interfaces..8-1

Setting Up the Communications Port... Setting Up the Communications Port Using Windows 95/98/Me.. Setting Up the Communications Port Using Windows NT 4.0. Setting Up the Communications Port Using Windows 2000. Setting Up the Communications Port Using Windows XP.. 8-2 8-2 8-3 8-4 8-5
Setting Up the Communications Port Using OS/2.. 8-6 Deciding Which Interface to Use... 8-7 Parallel Interface... 8-8 Standard Parallel Connector.. 8-9 Optional Parallel Connector... 8-9 Parallel Connector Pin Assignments.. 8-9 Using the INIT* Signal to Initialize.. 8-13 Computer-to-Printer Communications... 8-13 Printer-to-Computer Communication (Advanced Status).. 8-19 Parallel Mode 1... 8-20 Parallel Mode 2... 8-21 Signal Descriptions... 8-21 Serial Interface... 8-35 Using the RS-232C Serial Interface... 8-35 Using the RS-422 Serial Interface.. 8-46 Network Support.... 8-53 Input Buffer.... 8-54

LOWTONER (DEFAULT only)

Toner Alarm
Variable OUTBIN Function Output Bin Selections UPPER, LOWER, OPTIONALOUTBIN1, OPTIONALOUTBIN2, OPTIONALOUTBIN3, OPTIONALOUTBIN4, OPTIONALOUTBIN5, OPTIONALOUTBIN6, OPTIONALOUTBIN7, OPTIONALOUTBIN8, OPTIONALOUTBIN9, OPTIONALOUTBIN10, name name is a variable that allows for custom naming of optional output bins. The text string is truncated to 24 characters. A DINQUIRE or INQUIRE on the Output Bin setting returns: Output Bin setting Standard Bin Bin 1 Bin 2 Bin 3 Bin 4 Bin 5 Bin 6 Bin 7 Bin 8 Bin 9 Bin 10 name PAGEPROTECT Page Protect AUTO, ON A value of ON indicates the Page Protect setting is set On. The value of AUTO indicates the Page Protect setting is set Off. INQUIRE or DINQUIRE returns the value of the Page Protect as follows: If Page Protect is set Off, AUTO is returned. If Page Protect is set On, ON is returned. PAPER Default paper source, default formatting size Paper: A3, A3+, A4, A5, B4, B4PAPER, B5PAPER, JISB4, JISB5, CUSTOM, EXECUTIVE, LEDGER, LEGAL, LETTER, 11X17 Envelopes: COM10, COM9, MONARCH, DL, C5, B5, OTHERENVELOPE LETTER, A4 (Country specific) DINQUIRE or INQUIRE value UPPER OPTIONALOUTBIN1 OPTIONALOUTBIN2 OPTIONALOUTBIN3 OPTIONALOUTBIN4 OPTIONALOUTBIN5 OPTIONALOUTBIN6 OPTIONALOUTBIN7 OPTIONALOUTBIN8 OPTIONALOUTBIN9 OPTIONALOUTBIN10 name AUTO Factory Default UPPER
Variable PARALLEL (DEFAULT only) (Port Specific) Function Parallel Protocol Selections SLOW, FAST A value of SLOW indicates the Parallel Protocol setting is Standard. The value of FAST indicates the Parallel Protocol setting is FASTBYTES. INQUIRE or DINQUIRE returns the value of the Parallel Protocol as follows: If Parallel Protocol is set as Standard, SLOW is returned. If Parallel Protocol is set as Fastbytes, FAST is returned. PASSWORD (DEFAULT only) Default password for PJL NVRAM security 0 to 65535 Locks the printer operator panel to keep the user defaults from changing. Refer to your printer user documentation for more information. The Default PJL password is 0. If the PJL password is not equal to 0, a DINQUIRE or INQUIRE on the PASSWORD variable returns ENABLED. If the PJL password is equal to 0, a DINQUIRE or INQUIRE on the PASSWORD variable returns DISABLED. See the PASSWORD parameter of the JOB command on page 3-5 for more information. PERSONALITY (Port specific) SmartSwitch settings PCL, POSTSCRIPT, AUTO PERSONALITY controls the SmartSwitch settings for the interface link on which the PJL command is received. If AUTO is sent, both PS SmartSwitch and PCL Smartswitch menu settings are set to ON. If PCL is sent, PS SmartSwitch is set to OFF and PCL SmartSwitch is set to ON. If POSTSCRIPT is sent, PCL SmartSwitch is set to OFF and PS SmartSwitch is set to ON. When queried, AUTO is returned if both SmartSwitch settings are ON. If one SmartSwitch setting is OFF, the printer language whose SmartSwitch setting is ON is returned. If both SmartSwitch settings are OFF, the default printer language is returned. POWERSAVE (DEFAULT only) Power Save feature ON, OFF ON enables the power-saving feature. OFF disables the power-saving feature. Note: Some printer models released in the year 2000 or later designated as Energy Star printers cannot have Power Saver disabled. ON AUTO 0 Factory Default FAST

NULL (no password)

The LDECLARE command can be used to temporarily unlock access to a device or particular file. See File and Device Protection Commands on page 3-93 for additional information about using passwords on these devices.
Table 3-9: Printer Unique LRESOURCE Variables (Continued)
Variable LWLOCK (DEFAULT only)
Function Write Lock (password) for an entire device or particular file on the device 2
Selections "alphanumeric string" Same as LRWLOCK, except the password limits write-only access instead of read-write access.
Factory Default NULL (no password)
The macro or symbol set description is printed in the Description field of the Print Directory listing. To password protect a device, the command modifier:value should be LRESOURCE :"device:". The colon (:) and double quotes (" ") must be specified.

Status Readback Commands

Applications can request configuration and status information from the printer using the Status Readback commands. In addition, the printer can also be instructed to send unsolicited status information back to the host computer when asynchronous events occur, such as a memory error or a paper jam. To determine which commands your printer supports, see Table B-8: Status Readback Commands on page B-15.

DINQUIRE Command

This command is used to query the default setting (NVRAM) of the specified environment variable. Syntax:
@PJL DINQUIRE [command modifier:value] variable[<CR>]<LF>

Response Syntax:

@PJL DINQUIRE [command modifier:value] variable<CR><LF> value<CR><LF> <FF>

where:

The [command modifier:value] parameter specifies the type of PJL variable to be queried. The variables supported are listed in the tables beginning on page 3-12.
The supported variables are listed in the tables beginning on page 3-12. This printer returns a ? for inquiries of an unsupported variable, or inquiries of a variable associated with an option that is not installed.

ECHO Command

The ECHO command instructs the printer to return the specified words after the command is parsed. This command provides a method of capturing the status information returned by a specific print job. Syntax:

DTMF, Dual Tone Multi-Frequency, is the system used by touch-tone telephones which assigns a specific frequency, or tone, to each key so it can easily be identified by a microprocessor.

[STATIONID=station name]

The STATIONID parameter specifies a station name that is sent to the receiving fax machine to indicate the origin of an incoming fax. The station name is a text string which is truncated to 20 characters. A null value ( ) indicates no station ID is specified. If no station name is specified, the default station name of the printer is used.

LDOWNLOADTARGET Command

This command specifies which device is the target for downloaded files. The target can be RAM, flash, or disk. Syntax:
@PJL SET LDOWNLOADTARGET=variable [<CR>]<LF>
File Commands for Flash or Disk
Use the following commands to manage resources on flash and disk devices:
LOPENFILE LCLOSEFILE LREADFILE LWRITEFILE LRUNFILE LRENAMEFILE LDELETEFILE LFORMAT LDEFRAG
@PJL LOPENFILE DEVICE=filedevice FILENAME=fname ACCESS=accesstype [<CR>]<LF>
See Chapter 6: Flash Memory and Disk for more information.
Table 3-22 lists the parameters used with most of the commands. Additional parameters are noted in the description of each command. Table 3-22: Variables for Flash and Disk File and Password Commands
Parameter Syntax ACCESS = accesstype Description One of the following access types must be specified when a file is opened:

accesstype

Open for read only. File must already exist on specified device. Create a new file. If the file already exists, its contents will be discarded and a new file will be created. Open for reading and writing. File must already exist. Open for reading and writing, and position the file pointer to the end of the file. File must already exist.
Access types are case sensitive. The LREADFILE command is ignored if the file was not opened with an accesstype of RO, RW, or AP. The LWRITEFILE command is ignored if the file was not opened with an accesstype of WO, RW, or AP.

PostScript Emulation Fonts for the Lexmark W812
The Lexmark W812 printer has 156 resident fonts in PostScript emulation. The fonts match the 136 Adobe PostScript 3 resident fonts and include 20 extra fonts. Since the fonts are designed to match Adobe PostScript 3, this is called forward compatibility mode. The following table lists the 156 resident fonts in PostScript emulation.
Note: In backward compatibility mode, the LetterGothic-BoldSlanted font is unavailable. Your printer defaults to the forward compatibility mode and the Lexmark PostScript driver uses this mode. For backward compatibility with the Lexmark Optra S family of printers, use the latest version of the Lexmark Optra S driver which sends the PostScript command to switch to backward compatibility mode. (The original Lexmark Optra S driver does not send this command.) See Table 4-10 to determine which Lexmark Optra S driver you should use. Table 4-10: Lexmark Optra S Drivers

Supplemental Operators

This section explains PostScript emulation supplemental operators in detail. These supplemental operators are extensions to the standard PostScript language. For each supplemental operator, the exact syntax is listed, as well as the values returned on the stack and possible error messages. Tips for PostScript emulation command extensions:
Set operators are effective until the end of a job. At the end of a job, these values return to their default values. Setdefault operators do not become effective until the end of a job. However, the value may be queried immediately. Unless otherwise noted, all of these operators are located in the statusdict dictionary. In userdict, #copies is initialized at the beginning of each job to the number of copies selected either by PJL or from the printer operator panel.
To determine which operators your printer supports, see Table C-1 on page C-1.

Command Format

The PostScript emulation supplemental operators are described in this chapter in the following format:

where string is the new job name. Error: stackoverflow

jobsource

jobsource (string)
indicates the current value of the CurInputDevice system parameter. A string is returned on the stack indicating the job source. Valid values are: %LocalTalk% %SerialA% %SerialB% %SerialC% %SerialD% %ParallelA% %ParallelB% %ParallelC% %ParallelD% %IR_A% %IR_B% %IR_C% %IR_D% %USB_A% %USB_B% %USB_C% %USB_D% %EtherTalkB% %EtherTalkC% %EtherTalkD% %TokenTalkB% %TokenTalkC% %TokenTalkD% %LexLinkB% %LexLinkC% %LexLinkD% %PrintServerB% %PrintServerC% %PrintServerD% %RemotePrinterB% %RemotePrinterC% %RemotePrinterD% %AppSocketB% %AppSocketC% %AppSocketD%
%LPR_B% %LPR_C% %LPR_D% %UnknownDevice% This operator is equivalent to executing the following PostScript emulation sequence:
currentsystemparams /CurInputDevice get

jobtimeout

jobtimeout integer
queries the current user default setting for the JobTimeout parameter. An integer is returned on the stack:

disabled

15.65355 seconds
currentuserparams /JobTimeout get

See page 4-26.

manualfeedtimeout
/manualfeedtimeout integer def
is an integer key in statusdict that works with the ManualFeedTimeout page device parameter to determine the manualfeed timeout for a given page. If during a print job, manualfeedtimeout is defined as an integer value in statusdict, that value is used instead of the ManualFeedTimeout page device parameter. The value of the ManualFeedTimeout page device parameter and manualfeedtimeout key in statusdict are independent of each other; the value of one does not affect the value of the other. disabled 1.65355 seconds
An undefined error results if manualfeedtimeout is queried before the value is set. Errors: stackoverflow, undefined

newsheet

newsheet
causes the current page to start on the front side of a new sheet. Error: none

pagecount

pagecount integer
queries the value of the PageCount system parameter. An integer is returned on the stack indicating the current page count. This operator is equivalent to executing the following PostScript emulation sequence:
currentsystemparams /PageCount get

pagesprinted

- pagesprinted
queries the number of pages of the current job submitted by the PostScript interpreter to the printer. Error: stackoverflow

printername

(string) printername (substring)
returns the value of the PrinterName system parameter that is defined by the setprintername operator. The value of the string defines the printer name. A maximum of 32 characters are returned on the stack. This operator is equivalent to executing the following PostScript emulation sequence:
currentsystemparams /PrinterName get
Errors: rangecheck, stackunderflow, typecheck

product

Policies

dictionary
Note: Adjusting the page means to scale the image to fit the selected media and then center the image on the media.
PolicyNotFound or any feature name
An integer that specifies which recovery action to use when a requested feature other than PageSize cannot be matched with any key in the Policies dictionary.
The actions are: 0 Generate a configurationerror. 1 Ignore the requested feature (default). 2 Interact with a person or print manager. PolicyReport is a procedure that is called when a successful setpagedevice is finished. The procedure consults policies to process unsatisfied feature requests if needed. Default value is {pop}. PostRenderingEnhance boolean Always True to indicate that PostRenderingEnhanceDetails is enabled.
Key PostRenderingEnhance Details Type dictionary Definition Describes enhancements that are made to the output after the page has been held in memory. REValue is an integer that specifies the current value of the PQET menu item. Supported values are: to 4
PQET is Off. PQET is On (default is 1).
Type is a constant value. To find the value of Type for your printer, see PostRenderingEnhanceDetails on page C-8. PowerSave integer A value of 1 - 120 or 1 - 240 (model specific) indicates the number of minutes that elapses after the last page prints and before the Power Saver feature is invoked. A value of 0 (zero) indicates the Power Saver feature is turned Off on some printer models. Note: Some printer models released in the year 2000 or later designated as Energy Star printers cannot have Power Saver disabled. This value is initialized at the start of each PostScript emulation job to the value of the Power Saver menu item. Note: This parameter can only be modified within a system administration job. ProcessColorModel name or string Specifies the color model to use for rendering process colors in the printer. Supported values are: DeviceGray DeviceRGB DeviceCMYK DeviceCMY Punch integer Requests holes to be punched in the output page. The format for setting the Punch key is: <</Punch n>> setpagedevice where n is one of the following values: SlipSheet integer Do not punch holes in the output page. Punch holes in the output page.
Specifies where blank separator sheets should be inserted in the output. Supported values are: Do not insert separator sheets. Insert separator sheet at device deactivation. Insert separator sheet at end of the print job. Insert separator sheet at the end of each set in a multicopy job. If Collate is set to True, a set consists of one copy of each page of the document. For example, if a print job is five pages long, a set is one copy of pages one to five. If Collate is set to False, a set is all the copies of a single page of the job. For example, if a print job is three copies of a five page job, a set is three copies of the first page. Insert separator sheet after each showpage or copypage.

Key SlipSheetDetails Type dictionary Definition Specifies the following two unique separator sheet parameters: SlipSheetSource and Type. SlipSheetSource is an integer type parameter which identifies the source used for separator sheets. Supported values are: Null 6 Use current source (default) Tray 1 Tray 2 Envelope Feeder Tray 3 Multipurpose feeder Tray 4 Tray 5
The key is found in the DeviceRenderingInfo dictionary within pagedevice. It can be altered using a setpagedevice operator. /SlipSheetDetails << /Type 96 /SlipSheetSource n>> >> setpagedevice Type is a constant value. To find the value of Type for your printer, see Table C-2 on page C-5. Staple integer Specifies whether to staple the current print job. Supported values are: 4 Do not staple print job. Staple each set in the front position. Staple each set in the rear position. Staple each set according to the Auto setting. Staple each set in the dual position.
The format for setting the Staple key is: <</Staple n>> setpagedevice TraySwitch boolean Indicates tray linking is always active. When the media in one input source is depleted, other input sources are searched to determine if the same media can be found in another source. If another source is found, the alternate source is selected. The media in both input sources must be the same size and type for tray linking to occur. Indicates the orientation of the second side of a duplexed page with respect to the first side. Supported values are: True False Causes pages to print as if they are to be bound across the top of the page (image is rotated 180 on the back side of the page) Causes pages to print as if they are to be side bound (as in a book)

Tumble

Interpreter Parameters
This section describes the PostScript emulation interpreter parameters. There are three types of interpreter parameters:
User parameters System parameters Device parameters
To determine which parameters your printer supports, see Appendix C: PostScript Support on page C-1.

User Parameters

The following user parameters are used by setuserparams and currentuserparams. If a value is requested that is not within the range for the requested parameter, the minimum (or maximum) value is used. If a setuserparams value does not match the type of the specified parameter, a typecheck error occurs. If a parameter is not supported by the printer, it is ignored. An attempt to change the value of a read-only parameter has no effect on the parameter. To determine which parameters your printer supports, see Table C-3 on page C-9.
Table 4-19: PostScript Emulation User Parameters

Frequency of automatic garbage collection, which occurs when the specified number of bytes have been allocated since the previous collection. Legal value: Any integer from 8192 to 500000, inclusive.

WaitTimeout

Number of seconds the interpreter waits to receive additional characters from the host before it terminates the current print job by executing a PostScript emulation timeout error. A value of 0 indicates an infinite timeout. WaitTimeout is initialized to the value of the WaitTimeout system parameter at the beginning of each print job. Legal value: Any non-negative integer.

System Parameters

The setsystemparams operator sets the values of the specified system parameters. This operator requires a password if one is set. The currentsystemparams operator returns a dictionary of the current values of the system parameters. Values supplied to setsystemparams that are outside the range or limits for the specified integer parameter do not cause rangecheck or limitcheck errors. An appropriate value is used. For example, if you set JobTimeout to 14, it is actually set to 15, and no error is generated. The exceptions are noted in Table 4-20. Values supplied to setsystemparams that do not match the type of the specified parameter cause typecheck errors. Parameters that are not supported by the printer are ignored. An attempt to change the value of a read-only parameter has no effect on the parameter. Write-only parameters are not returned by currentsystemparams. To determine which parameters your printer supports, see Table C-4 on page C-10.
Table 4-20: PostScript Emulation System Parameters
Key BuildTime ByteOrder Type integer boolean Definition (Read-only) Timestamp identifying the specific build of the PostScript emulation interpreter. (Read-only) Native (preferred) order of multiple-byte numbers in binary encoded tokens. False True CurDisplayList CurFontCache CurFormCache
high-order first low-order first

integer integer integer

(Read-only) This value is always zero. (Read-only) Bytes currently occupied by the font cache. (Read-only) Bytes currently occupied by the form cache.
These parameters are Lexmark-specific and are in addition to the Adobe PostScript Language Supplement 2016. These parameters are available with the Adobe PostScript Language Supplement 3010. 3 These parameters are Lexmark-specific and are in addition to the Adobe PostScript Language Supplement 3010.
Table 4-20: PostScript Emulation System Parameters (Continued)
Key CurInputDevice Type string Definition (Read-only) The name of the communications device corresponding to the current input file for the PostScript emulation program which is currently executing. Possible values are: %LocalTalkA% %LocalTalkB% %LocalTalkC% %LocalTalkD% %SerialA% %SerialB% %SerialC% %SerialD% %ParallelA% %ParallelB% %ParallelC% %ParallelD% %IR_A% %IR_B% %IR_C% %IR_D% %EtherTalkB% %EtherTalkC% %EtherTalkD% %TokenTalkB% %TokenTalkC% CurOutlineCache CurOutputDevice integer string %TokenTalkD% %LexLinkB% %LexLinkC% %LexLinkD% %PrintServerB% %PrintServerC% %PrintServerD% %RemotePrinterB% %RemotePrinterC% %RemotePrinterD% %AppSocketB% %AppSocketC% %AppSocketD% %LPR_B% %LPR_C% %LPR_D% %UnknownDevice% %USB_A% %USB_B% %USB_C% %USB_D%

For more information, see Using SmartSwitch on page 4-1. Type name (Read-only) Always returns the value of /Communications.
Device Parameters for the Communication Device %Serial%, %SerialA%, %SerialB%, %SerialC%, %SerialD% (%Serial_NV% and %Serial_Pending% contain the same parameters) Baud CheckParity integer boolean Returns the value of the Baud menu item. (Read-only) Designates whether parity checking is done on the incoming data. Supported values are: True False DataBits DelayedOutputClose integer boolean
Parity menu item set to Even or Odd. Parity menu item set to None or Ignore.
Returns the value of the Data Bits menu item. Selects how the printer manages the port at the end of each print job. Supported values are: True False An end-of-file message is not sent until the current job and all preceding jobs finish printing. An end-of-file message is sent as soon as a job finishes executing in the interpreter, whether or not that job has finished printing.
This value is set independently for each port. Enabled boolean (Read-only) Supported values are: True False Filtering name Indicates if the input needs further filtering before the data can be correctly processed. Supported values are: InterpreterBased None
Key FlowControl Type name Definition Designates the serial flow control method between the host computer and the device. Returns a value corresponding to the Serial Protocol menu item. Supported values are: Dtr DtrDsr XonXoff XonXoffDtr XonXoffDtrDsr HasNames HonorDSR boolean boolean (Read-only) Always returns False. Serial - Honor DSR. Supported values are: True False Interpreter name (Read-only) Supported values are: PostScript AutoSelect PCL PPDS On boolean Designates if the communication channel is On and able to receive and send data. Supported values are: True False Parity name Data is sent and processed. Data is lost. Honor DSR is set to On. Honor DSR is set to Off.
Designates the parity to be used between the host computer and the device. Returns the value of the Parity menu item. Supported values are: Even Odd None Ignore If Parity is set to Ignore, CheckParity is set to False and Parity becomes Even.

PCLSmartSwitch

Supported values are: True False PCL SmartSwitch is set to On. PCL SmartSwitch is set to Off.
Key PortLocation Type string Definition (Read-only) Designates the physical location of the port related to the parameter set. Supported values are: Standard Port Option Slot 1 Option Slot 2 Option Slot 3 PSSmartSwitch boolean Supported values are: True False PS SmartSwitch is set to On. PS SmartSwitch is set to Off.
For more information, see Using SmartSwitch on page 4-1. RobustXon boolean Supported values are: True False SerialMode name RobustXon is set to On. RobustXon is set to Off.
Designates the serial communication configuration: RS232C or RS422. Returns the value of the Serial RS-232/RS-422 menu item. Supported values are: RS232 RS422 Returns RS232 on a printer that is attached with a cable that does not support RS-422.

StopBits

(Read-only) Supported values are: 1 2
(Read-only) Always returns the value of /Communications.
Device Parameters for the Communication Device %LocalTalk%, %LocalTalkA% (%LocalTalk_NV% and %LocalTalk_Pending% contain the same parameters) DelayedOutputClose boolean Selects how the printer manages the port at the end of each print job. Supported values are: True False An end-of-file message is not sent until the current job and all preceding jobs finish printing. An end-of-file message is sent as soon as a job finishes executing in the interpreter, whether or not that job has finished printing.
This value is set independently for each port. Enabled boolean (Read-only) Supported values are: True False
Key Filtering Type name Definition Indicates if the input needs further filtering before the data can be correctly processed. Supported values are: InterpreterBased None HasNames Interpreter boolean name (Read-only) Always returns False. (Read-only) Supported values are: PostScript AutoSelect PCL PPDS LocalTalkType string The type of the AppleTalk network entity name. This parameter also sets the Type parameter to the same value. The new value is returned by the appletalktype compatibility operator. Legal value: Any string of 32 or fewer non-null characters. Default value is LaserWriter. Note: Setting this variable does not affect the value for other physical internal print servers. The statusdict string appletalktype is correct for the current job port. NodeID On integer boolean (Read-only) Designates if the communication channel is On and able to receive and send data. Supported values are: True False PCLSmartSwitch boolean Data is sent and processed. Data is lost.

3-66 3-66 3-66 3-66 3-66 3-66 3-66 3-66 3-66 3-66 3-66
Supported Not Supported Page numbers reference message descriptions. Message Intervention Required Parallel x Port Disabled Intervention Required Disk Operation Failed Jobs on Disk Intervention Required Disk Operation Failed Faxes on Disk Intervention Required Flash Full Intervention Required Disk Full Intervention required: Disk Corrupted. Reformat? Intervention Required Too Many Flash Options Installed Intervention Required Unformatted Flash Intervention Required Unformatted Disk Intervention Required: Unsupported Disk Format Intervention Required Defective Flash Intervention Required Defective Disk Intervention Required Scheduled Maintenance Intervention Required Scheduled Maintenance Intervention Required Fuser Maintenance Intervention Required ITU Maintenance Page 3-66 3-66 Printer Model E320, E322 T520, T522 T620, T622
Status Code Return String 30113 32001
56 Parallel Port x Disabled Operation Failed Jobs on Disk Operation Failed Faxes on Disk 52 Flash Full 62 Disk Full Disk Corrupted. Reformat? 58 Too Many Flash Options 53 Unformatted Flash 63 Unformatted Disk 64 Unsupported Disk Format 51 Defective Flash 61 Defective Disk 80 Scheduled Maintenance 81 Scheduled Maintenance 80 Fuser Maintenance 83 ITU Maintenance
3-66 3-67 3-67 3-67 3-67 3-67 3-67 3-67 3-67 3-67 3-67 3-67 3-67
Table B-11: PJL Messages for Attendance Conditions
Supported Not Supported Page numbers reference message descriptions. Message Page Printer Model E320, E322 T520, T522 T620, T622

W812

Status Code 40010 40021

Return String

Insert PC Cartridge Cartridge Life Expired XXXX
Intervention Required - 3-68 Insert PC Cartridge Intervention Required - 3-68 Cartridge Life Expired
(XXXX represents a subset of letters CMYK, where CMYK denotes Cyan, Magenta, Yellow and Black cartridges, respectively.) 40021 40021
Cartridge Life Warning XXXX Cover Open, Close Top Covers, Close Door, or Insert Cartridge Close Cover Close Cover A Close Deflector G 31 Defective Print Cartridge
Intervention Required - 3-68 Cartridge Life Warning Intervention Required - 3-68 Printer Upper Door Open Intervention Required - 3-68 Printer Cover Open Intervention Required - 3-68 Close Toner Box Cover Intervention Required - 3-68 Close Deflector G Intervention Required - 3-68 Defective Print Cartridge Intervention Required - 3-68 Defective Ink Cartridge Intervention Required - 3-68 Missing Cartridge Intervention Required - 3-68 Missing Printhead Intervention Required - 3-68 Unsupported Print Cartridge Intervention Required - 3-68 Unsupported Cartridge Intervention Required - 3-68 Unsupported Printhead

LTRAY2SENSEDTYPETRANSPARENCY 3-45 LTRAY3AUTOSIZE 3-46 LTRAY3PAPERTYPE 3-47 LTRAY3SENSEDTYPEPAPER 3-46 LTRAY3SENSEDTYPETRANSPARENCY 3-46 LTRAY4AUTOSIZE 3-46 LTRAY4PAPERTYPE 3-47 LTRAY4SENSEDTYPEPAPER 3-46 LTRAY4SENSEDTYPETRANSPARENCY 3-46 LTRAY5AUTOSIZE 3-46 LTRAY5PAPERTYPE 3-47 LTYPE1FONTS 3-47 LUSDEFAULTS 3-47 LWLOCK 3-54 MANUALFEED 3-15 MEDIATYPE 3-15 MPTRAY 3-15 ORIENTATION 3-15 OUTBIN 3-16 PAGEPROTECT 3-16 PAPER 3-16 PARALLEL 3-17 PASSWORD 3-17 PERSONALITY 3-17 PITCH 3-48 POWERSAVE 3-17 POWERSAVETIME 3-18 PRTPSERRS 3-51 PTSIZE 3-48 QTY 3-18 REPRINT 3-18 RESOLUTION 3-18 RESOURCESAVE 3-18 RET 3-18 SYMSET 3-48 TIMEOUT 3-18 USERNAME 3-19 WIDEA4 3-19 printer languages, selecting MarkVision Professional 2-1 methods 5-1 operator panel 2-1 , 4-1 PCL emulation 2-1 Printer Job Language (PJL) 3-3 setting for different interfaces 5-2
SmartSwitch 5-1 software application 2-2 switching 5-1 printer specifications airflow requirement 7-1 altitude 7-9 atmospheric pressure 7-9 clearance requirements 7-6 dimensions 7-5 electrical 7-2 environmental conditions 7-8 flash memory and disk retrieval speeds 6-13 interfaces 8-1 noise emission levels 7-1 power requirements 7-3 size 7-5 time to power on to Ready state 7-9 time to print first page 7-10 weight 7-5 protocol DTR/DSR 8-41 fastbytes data transfer sequence 8-18 Robust XON 8-40 RS-232C 8-42 standard data transfer sequence 8-17 XON/XOFF 8-43
raster compression mode 2-79 adaptive compression 2-83 delta row 2-82 group 3 and 4 2-84 Lexmark adaptive 2-85 run-length encoded data 2-81 Tagged Image File Format (TIFF) 2-81 uncoded data 2-80 raster image graphics 2-79 receivers AUTOFD* Lexmark C720 8-23 Lexmark C750 8-24 Lexmark C910 8-24 Lexmark E320 8-23 Lexmark E322 8-23 Lexmark J110 8-25 Lexmark T420 8-25 Lexmark T520 8-25
Lexmark T522 8-25 Lexmark T620 8-25 Lexmark T622 8-25 Lexmark W812 8-25 Lexmark W820 8-25 BUSY driver Lexmark C720 8-30 Lexmark C750 8-30 Lexmark C910 8-31 Lexmark E320 8-30 Lexmark E322 8-30 Lexmark J110 8-31 Lexmark T420 8-32 Lexmark T520 8-32 Lexmark T522 8-32 Lexmark T620 8-32 Lexmark T622 8-32 Lexmark W812 8-32 Lexmark W820 8-32 Data 1-8 Signal Lexmark C720 8-26 Lexmark C750 8-26 Lexmark C910 8-26 Lexmark E320 8-26 Lexmark E322 8-26 Lexmark J110 8-27 Lexmark T420 8-27 Lexmark T520 8-27 Lexmark T522 8-27 Lexmark T620 8-27 Lexmark T622 8-27 Lexmark W812 8-27 Lexmark W820 8-27 INIT* Lexmark C720 8-30 Lexmark C750 8-30 Lexmark C910 8-31 Lexmark E320 8-30 Lexmark E322 8-30 Lexmark J110 8-31 Lexmark T420 8-32 Lexmark T520 8-32 Lexmark T522 8-32 Lexmark T620 8-32 Lexmark T622 8-32 Lexmark W812 8-32 Lexmark W820 8-32 SLCTIN*
Lexmark C720 8-32 Lexmark C750 8-33 Lexmark C910 8-33 Lexmark E320 8-32 Lexmark E322 8-32 Lexmark J110 8-34 Lexmark T420 8-34 Lexmark T520 8-34 Lexmark T522 8-34 Lexmark T620 8-34 Lexmark T622 8-34 Lexmark W812 8-34 Lexmark W820 8-34 STROBE Lexmark C720 8-21 Lexmark C750 8-22 Lexmark C910 8-22 Lexmark E320 8-21 Lexmark E322 8-21 Lexmark J110 8-22 Lexmark T420 8-23 Lexmark T520 8-23 Lexmark T522 8-23 Lexmark T620 8-23 Lexmark T622 8-23 Lexmark W812 8-23 Lexmark W820 8-23 required clearance 7-6 Resource Data Collection 6-2 , 6-3 Robust XON protocol 8-40 RS-232C cable pin assignments 8-36 connecting 8-35 port compatibility 8-46 protocol timing 8-42 XON/XOFF protocol timing 8-43 RS-422 cable pin assignments 8-47 connecting 8-46 serial communication parameters 8-48 using 8-46 XON/XOFF protocol timing 8-50