Manual for P6 and P7 Series

Manual for P6 and P7 Series

Brand: NEC

Category: Other

Document Type: Manual

Language: EN

Uploaded: Nov. 21, 2025, 8:17 p.m.

Manual Publish Date: 1995-10-05

Warranty Information

Warranty information not explicitly stated, refer to manufacturer for details.

P6 and P7 Series Printers

Main Board Switch Settings:

  • SW1 Controls inch perforation skip, form feed length, and print mode power-up default.
  • SW2 Controls carriage return, line feed, auto feed XT signal, and language character sets.
  • SW3 Controls LQ spacing, HS draft spacing, and color function.

RS-232 Board Switch Settings:

  • SW5 Controls baud rate and character length.
  • SW6 Controls loopback test, data carrier detect signals, and receive buffer capacity.
  • SW7 Controls interface mode and must be set to OFF for normal operation.

Print Rate and Specifications:

  • High-Speed Draft: 216 cps
  • Regular Draft: 180 cps
  • Letter Quality: 65 cps
  • Impact 24-wire print head with a 200 million character life.
  • Graphic Resolution up to 360 x 360 dpi.

Special Features:

  • Operator panel with font selection and digital font display.
  • Triple-width, double-width, and double-height characters.
  • Hex data dump and auto paper loading.

Font Selections:

  • Letter-quality and Draft fonts available in various pitches (cpi).

Error and Status Codes:

  • Power-on error codes (0, 1, 2, 3, 4, C, J, d) indicate hardware or firmware issues.
  • Printer operation error codes (H, P, S, A, 0) indicate specific operational problems.
  • Status codes (P., C., J., b., H.) indicate paper, cover, jam, buffer, or overheat conditions.

Troubleshooting and error codes

Status Codes
STATUS CODE MEANING CORRECTIVE ACTION
P. Paper empty. Load paper and press SLCT.
C. Cover open. Close the acrylic cover and press SLCT.
J. Paper jam or insertion error when sheet feeder is installed. Remove jammed paper and reload new paper.
b. Serial interface buffer overflow. Press SLCT.
H. Print head is overheated. Printing resumes automatically when print head cools.

Error Codes Displayed at Power-On
ERROR CODE DEFINITION
0 Check error in parallel interface controller or print data latch.
1 Check sum error in master firmware ROM.
2 RAM check error in master MPU.
3 Switch check error.
4 Check sum error in CG ROM.
C Check sum error in firmware ROM or RAM check error in serial interface.
J Check sum error in slave firmware ROM or RAM check error in slave MPU.
d Check sum error in firmware ROM or RAM check error in Centronics buffer board.

Error Codes Displayed During Printer Operation
ERROR CODE DEFINITION
H Master MPU stall.
V Home position switch sensing error.
P +34 V voltage check error (voltage drop).
S Communication error between master and slave MPU.
A Color ribbon initialization error/ribbon change error.
0 Control panel cable is not connected.
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